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--state-path /tmp/ci-state.json + ./target/debug/taproot verify --state-path /tmp/ci-state.json + ./target/debug/taproot registry push --state-path /tmp/ci-state.json --registry /tmp/ci-registry + ./target/debug/taproot registry list --registry /tmp/ci-registry ci/test diff --git a/.github/workflows/taproot.yml b/.github/workflows/taproot.yml new file mode 100644 index 0000000..37f18b8 --- /dev/null +++ b/.github/workflows/taproot.yml @@ -0,0 +1,44 @@ +name: taproot + +on: + pull_request: + paths: + - ".taproot/state.json" + - "src/**" + - "action.yml" + - "scripts/**" + - ".github/workflows/taproot.yml" + push: + branches: [main] + paths: + - ".taproot/state.json" + - "src/**" + +jobs: + baseline: + runs-on: ubuntu-latest + permissions: + contents: read + steps: + - uses: actions/checkout@v4 + with: + fetch-depth: 0 + + - name: Install system deps + run: sudo apt-get update && sudo apt-get install -y libfuse3-dev pkg-config + + - name: Install Rust + uses: 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version = "0.7", features = ["json"] } +tokio = { version = "1", features = ["full"] } +tower = "0.4" +tower-http = { version = "0.6", features = ["trace"] } +reqwest = { version = "0.12", features = ["json", "rustls-tls", "blocking"], default-features = false } + +[dev-dependencies] +tempfile = "3.0" diff --git a/README.md b/README.md index d72aac1..1097997 100644 --- a/README.md +++ b/README.md @@ -43,10 +43,11 @@ If the state has drifted from the signed baseline, Taproot blocks execution and We are building the wedge primitive: - [x] State serialization engine (Rust) -- [ ] FUSE mount CLI -- [ ] GitHub Action + baseline check -- [ ] Signed state registry -- [ ] Managed fabric + registry API +- [x] FUSE mount CLI (read-only, v0.0.1) +- [x] GitHub Action + baseline check (`taproot check` strict, composite action) +- [x] Signed state registry (local content-addressed, `taproot registry push/pull/list`) +- [x] Key management (`taproot keys generate/list/rotate`) +- [x] Managed fabric + registry API (`taproot serve`, `taproot remote`, `taproot fabric` audit/policy/tokens) ## Open source @@ -58,7 +59,19 @@ Taproot's mount CLI, protocol format, and state schema are MIT-licensed. The man git clone https://github.com/Epoch-AI-Lab/taproot.git cd taproot cargo build --release -./target/release/taproot mount ~/projects/myapp +./target/release/taproot keys generate --id mykey +./target/release/taproot init --repo myapp --branch main --commit 9f3a2c1 +./target/release/taproot registry push +./target/release/taproot registry list --repo myapp +./target/release/taproot mount --no-fuse ~/projects/myapp # requires existing dir; omit --no-fuse for real FUSE +./target/release/taproot status +./target/release/taproot verify +./target/release/taproot check --baseline .taproot/baseline.json --json # strict drift check + +# remote fabric +./target/release/taproot serve --addr 127.0.0.1:3000 & +./target/release/taproot remote push --remote http://127.0.0.1:3000 +./target/release/taproot fabric audit ``` ## Contribute diff --git a/action.yml b/action.yml new file mode 100644 index 0000000..bda6b81 --- /dev/null +++ b/action.yml @@ -0,0 +1,72 @@ +name: "Taproot Baseline Check" +description: "Verify .taproot/state.json integrity and check drift against baseline — strict by default" +branding: + icon: "layers" + color: "gray-dark" + +inputs: + state-path: + description: "Path to current state file (PR head)" + default: ".taproot/state.json" + required: false + baseline-ref: + description: "Git ref to fetch baseline from (default: github.base_ref or main)" + default: "" + required: false + baseline-path: + description: "Path to state file in baseline branch (default: same as state-path)" + default: "" + required: false + fail-on-drift: + description: "Exit 1 if drift detected (breaking or strict warnings)" + default: "true" + required: false + working-directory: + description: "Working directory to run in" + default: "." + required: false + registry-url: + description: "Remote registry URL (e.g. https://registry.taproot.dev). If set, baseline is fetched via API first, fallback to git." + default: "" + required: false + registry-token: + description: "Bearer token for remote registry" + default: "" + required: false + registry-path: + description: "Local registry path (default: .taproot/registry)" + default: ".taproot/registry" + required: false + +outputs: + hash: + description: "sha256 hash of head state" + value: ${{ steps.check.outputs.hash }} + baseline-hash: + description: "sha256 hash of baseline state, empty if no baseline" + value: ${{ steps.check.outputs.baseline-hash }} + drift: + description: "'true' if drift detected, 'false' otherwise" + value: ${{ steps.check.outputs.drift }} + verified: + description: "'true' if head state passed hash+signature check" + value: ${{ steps.check.outputs.verified }} + baseline-exists: + description: "'true' if baseline state was found" + value: ${{ steps.check.outputs.baseline-exists }} + +runs: + using: "composite" + steps: + - id: check + shell: bash + env: + INPUT_STATE_PATH: ${{ inputs.state-path }} + INPUT_BASELINE_REF: ${{ inputs.baseline-ref }} + INPUT_BASELINE_PATH: ${{ inputs.baseline-path }} + INPUT_FAIL_ON_DRIFT: ${{ inputs.fail-on-drift }} + INPUT_WORKING_DIRECTORY: ${{ inputs.working-directory }} + INPUT_REGISTRY_URL: ${{ inputs.registry-url }} + INPUT_REGISTRY_TOKEN: ${{ inputs.registry-token }} + INPUT_REGISTRY_PATH: ${{ inputs.registry-path }} + run: ${{ github.action_path }}/scripts/run.sh diff --git a/scripts/run.sh b/scripts/run.sh new file mode 100755 index 0000000..3fc232a --- /dev/null +++ b/scripts/run.sh @@ -0,0 +1,243 @@ +#!/usr/bin/env bash +set -euo pipefail + +STATE_PATH="${INPUT_STATE_PATH:-.taproot/state.json}" +BASELINE_REF="${INPUT_BASELINE_REF:-${GITHUB_BASE_REF:-main}}" +BASELINE_PATH="${INPUT_BASELINE_PATH:-$STATE_PATH}" +FAIL_ON_DRIFT="${INPUT_FAIL_ON_DRIFT:-true}" +WORKDIR="${INPUT_WORKING_DIRECTORY:-.}" +REGISTRY_URL="${INPUT_REGISTRY_URL:-}" +REGISTRY_TOKEN="${INPUT_REGISTRY_TOKEN:-}" +REGISTRY_PATH="${INPUT_REGISTRY_PATH:-.taproot/registry}" + +# Validate baseline ref to prevent git argument injection +if [[ "$BASELINE_REF" == -* ]] || [[ "$BASELINE_REF" == *$'\n'* ]]; then + echo "::error::Invalid baseline-ref: must not start with '-' or contain newline" + exit 2 +fi +if [[ "$BASELINE_PATH" == *$'\n'* ]]; then + echo "::error::Invalid baseline-path: must not contain newline" + exit 2 +fi + +cd "$WORKDIR" + +ACTION_DIR="$(cd "$(dirname "$0")/.." && pwd)" + +# Temp files with trap cleanup (fix M2) +BASELINE_TMP="$(mktemp)" +CHECK_JSON="$(mktemp)" +CHECK_LOG="$(mktemp)" +trap 'rm -f "$BASELINE_TMP" "$CHECK_JSON" "$CHECK_LOG"' EXIT + +# Escape helpers for workflow commands (fix H1/H2) +escape_wf() { + local s="$1" + s="${s//%/%25}" + s="${s//$'\r'/%0D}" + s="${s//$'\n'/%0A}" + printf '%s' "$s" +} +escape_wf_colon() { + local s + s="$(escape_wf "$1")" + s="${s//:/%3A}" + printf '%s' "$s" +} + +# Ensure taproot binary available +TAPROOT_BIN="" +if [[ -x "$ACTION_DIR/target/debug/taproot" ]]; then + TAPROOT_BIN="$ACTION_DIR/target/debug/taproot" +elif command -v taproot &>/dev/null; then + TAPROOT_BIN="taproot" +else + echo "::group::Installing taproot" + if command -v cargo &>/dev/null; then + cargo install --path "$ACTION_DIR" --locked 2>&1 | tail -5 + TAPROOT_BIN="taproot" + else + echo "::error::taproot binary not found and cargo not available" + exit 2 + fi + echo "::endgroup::" +fi + +echo "Taproot baseline check (strict)" +echo " state: $STATE_PATH" +echo " baseline: $BASELINE_REF:$BASELINE_PATH" +echo " binary: $TAPROOT_BIN" +echo "" + +# 1. Verify head exists and is signed + valid +if [[ ! -f "$STATE_PATH" ]]; then + esc_path="$(escape_wf "$STATE_PATH")" + echo "::error file=$esc_path::Head state not found at $esc_path" + echo "drift=true" >> "$GITHUB_OUTPUT" 2>/dev/null || true + echo "verified=false" >> "$GITHUB_OUTPUT" 2>/dev/null || true + echo "baseline-exists=false" >> "$GITHUB_OUTPUT" 2>/dev/null || true + exit 1 +fi + +echo "::group::Verify head state" +if ! "$TAPROOT_BIN" verify --state-path "$STATE_PATH"; then + esc_path="$(escape_wf "$STATE_PATH")" + echo "::error file=$esc_path::Head state verification failed (hash or signature invalid)" + echo "verified=false" >> "$GITHUB_OUTPUT" 2>/dev/null || true + if [[ -n "${GITHUB_OUTPUT:-}" ]]; then + echo "hash=" >> "$GITHUB_OUTPUT" + echo "drift=true" >> "$GITHUB_OUTPUT" + echo "baseline-exists=false" >> "$GITHUB_OUTPUT" + fi + exit 1 +fi +HEAD_HASH=$("$TAPROOT_BIN" verify --state-path "$STATE_PATH" 2>&1 | grep -oE 'sha256:[a-f0-9]+' | cut -d: -f2 || echo "") +echo "verified=true" >> "$GITHUB_OUTPUT" 2>/dev/null || true +echo "hash=$HEAD_HASH" >> "$GITHUB_OUTPUT" 2>/dev/null || true +echo "::endgroup::" + +# 2. Fetch baseline — try remote registry first, then git +BASELINE_EXISTS="false" +BASELINE_HASH="" + +# Try remote registry if configured +REMOTE_BASELINE_FETCHED="false" +if [[ -n "$REGISTRY_URL" ]]; then + echo "::group::Try remote baseline from $REGISTRY_URL" + # Derive repo/branch from state file if possible, else use baseline ref as branch + REPO_HINT=$(jq -r '.state.base.repo // empty' "$STATE_PATH" 2>/dev/null || echo "") + BRANCH_HINT="$BASELINE_REF" + if [[ -n "$REPO_HINT" && -n "$BRANCH_HINT" ]]; then + ENCODED_REPO=$(echo "$REPO_HINT" | sed 's/%/%25/g; s|/|%2F|g') + ENCODED_BRANCH=$(echo "$BRANCH_HINT" | sed 's/%/%25/g; s|/|%2F|g') + REMOTE_REF_URL="${REGISTRY_URL%/}/v1/refs/$ENCODED_REPO/$ENCODED_BRANCH" + AUTH_HEADER="" + if [[ -n "$REGISTRY_TOKEN" ]]; then + AUTH_HEADER="Authorization: Bearer $REGISTRY_TOKEN" + fi + if REMOTE_HASH=$(curl -s -f ${AUTH_HEADER:+-H "$AUTH_HEADER"} "$REMOTE_REF_URL" 2>/dev/null | jq -r '.hash // empty' 2>/dev/null); then + if [[ -n "$REMOTE_HASH" && ${#REMOTE_HASH} -eq 64 ]]; then + REMOTE_STATE_URL="${REGISTRY_URL%/}/v1/states/$REMOTE_HASH" + if curl -s -f ${AUTH_HEADER:+-H "$AUTH_HEADER"} "$REMOTE_STATE_URL" -o "$BASELINE_TMP" 2>/dev/null; then + if "$TAPROOT_BIN" verify --state-path "$BASELINE_TMP" >/dev/null 2>&1; then + REMOTE_BASELINE_FETCHED="true" + echo "✓ remote baseline fetched: $REMOTE_HASH" + fi + fi + fi + fi + fi + echo "::endgroup::" + if [[ "$REMOTE_BASELINE_FETCHED" == "true" ]]; then + BASELINE_EXISTS="true" + echo "baseline-exists=true" >> "$GITHUB_OUTPUT" 2>/dev/null || true + # Verify and extract hash via remote file + echo "::group::Verify baseline state (remote)" + if ! "$TAPROOT_BIN" verify --state-path "$BASELINE_TMP" 2>&1; then + echo "::warning::Baseline state has invalid hash/signature — failing check" + echo "baseline-hash=" >> "$GITHUB_OUTPUT" 2>/dev/null || true + else + BASELINE_HASH=$("$TAPROOT_BIN" verify --state-path "$BASELINE_TMP" 2>&1 | grep -oE 'sha256:[a-f0-9]+' | cut -d: -f2 || echo "") + echo "baseline-hash=$BASELINE_HASH" >> "$GITHUB_OUTPUT" 2>/dev/null || true + fi + echo "::endgroup::" + # Reuse same drift logic below — set flag to enter drift block + fi +fi + +# Fallback to git if remote not fetched +if [[ "$REMOTE_BASELINE_FETCHED" != "true" ]]; then + git fetch --depth 1 origin -- "$BASELINE_REF" 2>/dev/null || true + if git show "origin/$BASELINE_REF:$BASELINE_PATH" > "$BASELINE_TMP" 2>/dev/null; then + BASELINE_EXISTS="true" + echo "baseline-exists=true" >> "$GITHUB_OUTPUT" 2>/dev/null || true + + echo "::group::Verify baseline state" + if ! "$TAPROOT_BIN" verify --state-path "$BASELINE_TMP" 2>&1; then + echo "::warning::Baseline state has invalid hash/signature — failing check" + echo "baseline-hash=" >> "$GITHUB_OUTPUT" 2>/dev/null || true + else + BASELINE_HASH=$("$TAPROOT_BIN" verify --state-path "$BASELINE_TMP" 2>&1 | grep -oE 'sha256:[a-f0-9]+' | cut -d: -f2 || echo "") + echo "baseline-hash=$BASELINE_HASH" >> "$GITHUB_OUTPUT" 2>/dev/null || true + fi + echo "::endgroup::" + fi +fi + +# 2b. If baseline exists (from either remote or git), run drift check +if [[ "$BASELINE_EXISTS" == "true" ]]; then + + # 3. Diff — strict mode (fail on unsigned, fail on warnings) + echo "::group::Taproot check (strict)" + set +e + "$TAPROOT_BIN" check --baseline "$BASELINE_TMP" --state-path "$STATE_PATH" --json > "$CHECK_JSON" 2>"$CHECK_LOG" + CHECK_EXIT=$? + set -e + cat "$CHECK_LOG" 2>/dev/null || true + if [[ -f "$CHECK_JSON" ]]; then + cat "$CHECK_JSON" + echo "" + "$TAPROOT_BIN" check --baseline "$BASELINE_TMP" --state-path "$STATE_PATH" 2>&1 || true + fi + + # Summary — escape baseline ref for markdown + if [[ -n "${GITHUB_STEP_SUMMARY:-}" ]]; then + { + echo "## Taproot baseline check (strict)" + echo "" + echo "| | head | baseline ($BASELINE_REF) |" + echo "|--|--|--|" + echo "| hash | \`$HEAD_HASH\` | \`${BASELINE_HASH:-unknown}\` |" + echo "| drift | $(if [[ $CHECK_EXIT -ne 0 ]]; then echo "✗ detected"; else echo "✓ none"; fi) | |" + echo "" + if [[ $CHECK_EXIT -ne 0 && -f "$CHECK_JSON" ]]; then + echo "### Changes" + echo '```json' + cat "$CHECK_JSON" + echo '```' + fi + } >> "$GITHUB_STEP_SUMMARY" + fi + + # Annotations — escape % \r \n and : in workflow commands (fix H1) + if [[ $CHECK_EXIT -ne 0 && -f "$CHECK_JSON" ]] && command -v jq &>/dev/null; then + while IFS= read -r line; do + esc_line="$(escape_wf "$line")" + echo "::warning::$esc_line" + done < <(jq -r '.diffs[]? | "\(.path): \(.kind) — expected=\(.expected // "null") actual=\(.actual // "null") (\(.severity))"' "$CHECK_JSON" 2>/dev/null | head -20) + while IFS= read -r line; do + esc_line="$(escape_wf "$line")" + echo "::error::$esc_line" + done < <(jq -r '.warnings[]? | "\(.)"' "$CHECK_JSON" 2>/dev/null | head -10) + fi + + if [[ $CHECK_EXIT -ne 0 ]]; then + echo "drift=true" >> "$GITHUB_OUTPUT" 2>/dev/null || true + if [[ "$FAIL_ON_DRIFT" == "true" ]]; then + echo "::error::Drift detected — strict check failed" + exit 1 + else + echo "::warning::Drift detected but fail-on-drift=false, passing" + exit 0 + fi + else + echo "drift=false" >> "$GITHUB_OUTPUT" 2>/dev/null || true + echo "✓ No drift — inherited" + exit 0 + fi + +else + echo "baseline-exists=false" >> "$GITHUB_OUTPUT" 2>/dev/null || true + echo "baseline-hash=" >> "$GITHUB_OUTPUT" 2>/dev/null || true + echo "drift=false" >> "$GITHUB_OUTPUT" 2>/dev/null || true + echo "::notice::No baseline at origin/$BASELINE_REF:$BASELINE_PATH — first-time init, skipping drift check (pass)" + if [[ -n "${GITHUB_STEP_SUMMARY:-}" ]]; then + { + echo "## Taproot baseline check" + echo "" + echo "No baseline found at \`origin/$BASELINE_REF:$BASELINE_PATH\` — first-time init, passing." + echo "Head hash: \`$HEAD_HASH\`" + } >> "$GITHUB_STEP_SUMMARY" + fi + exit 0 +fi diff --git a/src/cli.rs b/src/cli.rs new file mode 100644 index 0000000..f68b034 --- /dev/null +++ b/src/cli.rs @@ -0,0 +1,1509 @@ +use std::path::{Path, PathBuf}; + +use clap::{Args, Parser, Subcommand}; + +use crate::engine::StateEngine; +use crate::error::TaprootError; +use crate::state::TaprootState; +use crate::util::validate_non_empty; + +const DEFAULT_STATE_PATH: &str = ".taproot/state.json"; + +fn resolve_or_default(input: Option, default: &str) -> PathBuf { + input.unwrap_or_else(|| PathBuf::from(default)) +} + +fn resolve_state_path(input: Option) -> PathBuf { + resolve_or_default(input, DEFAULT_STATE_PATH) +} + +fn display_state_path(path: &Path) -> String { + // Show absolute if relative, to avoid cwd confusion noted in PR review + if path.is_absolute() { + path.display().to_string() + } else if let Ok(cur) = std::env::current_dir() { + cur.join(path).display().to_string() + } else { + path.display().to_string() + } +} + +// --------------------------------------------------------------------------- +// CLI definition +// --------------------------------------------------------------------------- + +#[derive(Debug, Parser)] +#[command( + name = "taproot", + version, + about = "State inheritance fabric between VCS and CI" +)] +pub struct Cli { + #[command(subcommand)] + pub command: Commands, +} + +#[derive(Debug, Subcommand)] +pub enum Commands { + /// Initialise a new taproot state snapshot + Init(InitArgs), + /// Mount a taproot state (v0.0.1: read-only FUSE) + Mount(MountArgs), + /// Show current state status + Status(StatusArgs), + /// Verify state signature and hash + Verify(VerifyArgs), + /// Check current state against a baseline for drift (strict) + Check(CheckArgs), + /// Local signed state registry (content-addressed) + Registry(RegistryArgs), + /// Key management (ed25519) + Keys(KeysArgs), + /// Fabric: audit, policy, tokens + Fabric(FabricArgs), + /// Serve registry API (managed fabric) + Serve(ServeArgs), + /// Remote registry (push/pull via HTTP) + Remote(RemoteArgs), +} + +#[derive(Debug, Args)] +pub struct InitArgs { + /// Repository name (e.g. myapp or org/myapp) + #[arg(long)] + pub repo: String, + + /// Branch name (e.g. main or feat/foo) + #[arg(long)] + pub branch: String, + + /// Commit hash (e.g. 9f3a2c1) + #[arg(long)] + pub commit: String, + + /// Path to state file (default: .taproot/state.json, relative to current directory) + #[arg(long, value_name = "PATH")] + pub state_path: Option, + + /// Skip signing (store hash only, no ed25519 signature) + #[arg(long = "no-sign", default_value_t = false)] + pub no_sign: bool, +} + +#[derive(Debug, Args)] +pub struct MountArgs { + /// Path to mount (must be an existing empty directory) + pub path: PathBuf, + + /// Path to state file (default: .taproot/state.json, relative to current directory) + #[arg(long, value_name = "PATH")] + pub state_path: Option, + + /// Disable FUSE mount — just print header and exit (useful in CI without FUSE) + #[arg(long = "no-fuse", default_value_t = false)] + pub no_fuse: bool, +} + +#[derive(Debug, Args)] +pub struct StatusArgs { + /// Path to state file (default: .taproot/state.json, relative to current directory) + #[arg(long, value_name = "PATH")] + pub state_path: Option, +} + +#[derive(Debug, Args)] +pub struct VerifyArgs { + /// Path to state file (default: .taproot/state.json, relative to current directory) + #[arg(long, value_name = "PATH")] + pub state_path: Option, +} + +#[derive(Debug, Args)] +pub struct CheckArgs { + /// Path to baseline state file to compare against + #[arg(long, value_name = "PATH")] + pub baseline: PathBuf, + + /// Path to current state file (default: .taproot/state.json) + #[arg(long, value_name = "PATH")] + pub state_path: Option, + + /// Machine-readable JSON output + #[arg(long, default_value_t = false)] + pub json: bool, + + /// Treat warnings as breaking (strict mode — default: true for CI, use --no-strict to disable) + #[arg(long, default_value_t = true, action = clap::ArgAction::Set)] + pub strict: bool, + + /// Alias to disable strict mode + #[arg(long = "no-strict", conflicts_with = "strict", hide = true)] + pub no_strict: bool, + + /// Allow warnings without failing (overrides strict for warnings) + #[arg(long, default_value_t = false)] + pub allow_warnings: bool, +} + +#[derive(Debug, Args)] +pub struct RegistryArgs { + #[command(subcommand)] + pub command: RegistryCommands, +} + +#[derive(Debug, Subcommand)] +pub enum RegistryCommands { + /// Push current state into the local registry (content-addressed + ref update) + Push(RegistryPushArgs), + /// Pull a state by hash from the registry + Pull(RegistryPullArgs), + /// List branches for a repo + List(RegistryListArgs), + /// Show a state by hash (alias for pull without writing) + Show(RegistryShowArgs), + /// Resolve a repo/branch ref to its hash + Resolve(RegistryResolveArgs), + /// Show log for a repo/branch (current ref) + Log(RegistryLogArgs), +} + +#[derive(Debug, Args)] +pub struct RegistryPushArgs { + /// Path to state file (default: .taproot/state.json) + #[arg(long, value_name = "PATH")] + pub state_path: Option, + /// Registry root (default: .taproot/registry) + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct RegistryPullArgs { + /// Hash (64 hex) of the object to pull + pub hash: String, + /// Write pulled state to this file (default: stdout summary) + #[arg(long, value_name = "PATH")] + pub out: Option, + /// Registry root (default: .taproot/registry) + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct RegistryListArgs { + /// Repo name (e.g. myapp or org/myapp) + pub repo: String, + /// Registry root (default: .taproot/registry) + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct RegistryShowArgs { + /// Hash (64 hex) to show + pub hash: String, + /// Registry root (default: .taproot/registry) + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct RegistryResolveArgs { + /// Repo name + pub repo: String, + /// Branch name + pub branch: String, + /// Registry root (default: .taproot/registry) + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct RegistryLogArgs { + /// Repo name + pub repo: String, + /// Branch name + pub branch: String, + /// Registry root (default: .taproot/registry) + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +const DEFAULT_REGISTRY_PATH: &str = ".taproot/registry"; +const DEFAULT_KEYS_PATH: &str = ".taproot/keys"; +const DEFAULT_FABRIC_PATH: &str = ".taproot/fabric"; + +fn resolve_registry_path(input: Option) -> PathBuf { + resolve_or_default(input, DEFAULT_REGISTRY_PATH) +} +fn resolve_keys_path(input: Option) -> PathBuf { + resolve_or_default(input, DEFAULT_KEYS_PATH) +} +fn resolve_fabric_path(input: Option) -> PathBuf { + resolve_or_default(input, DEFAULT_FABRIC_PATH) +} + +// --------------------------------------------------------------------------- +// Keys / Fabric / Serve / Remote CLI +// --------------------------------------------------------------------------- + +#[derive(Debug, Args)] +pub struct KeysArgs { + #[command(subcommand)] + pub command: KeysCommands, +} + +#[derive(Debug, Subcommand)] +pub enum KeysCommands { + /// Generate a new ed25519 keypair + Generate(KeysGenerateArgs), + /// List stored keys + List(KeysListArgs), + /// Show a key by id + Show(KeysShowArgs), + /// Rotate keys (generate new active, optionally deactivate old) + Rotate(KeysRotateArgs), +} + +#[derive(Debug, Args)] +pub struct KeysGenerateArgs { + /// Key id (default: key-) + #[arg(long)] + pub id: Option, + #[arg(long, value_name = "PATH")] + pub keys: Option, +} + +#[derive(Debug, Args)] +pub struct KeysListArgs { + #[arg(long, value_name = "PATH")] + pub keys: Option, +} + +#[derive(Debug, Args)] +pub struct KeysShowArgs { + pub id: String, + #[arg(long, value_name = "PATH")] + pub keys: Option, +} + +#[derive(Debug, Args)] +pub struct KeysRotateArgs { + #[arg(long, default_value_t = false)] + pub deactivate_old: bool, + #[arg(long, value_name = "PATH")] + pub keys: Option, +} + +#[derive(Debug, Args)] +pub struct FabricArgs { + #[command(subcommand)] + pub command: FabricCommands, +} + +#[derive(Debug, Subcommand)] +pub enum FabricCommands { + /// Show audit log + Audit(FabricAuditArgs), + /// Get policy for a repo + PolicyGet(FabricPolicyGetArgs), + /// Set policy for a repo + PolicySet(FabricPolicySetArgs), + /// Add a bearer token (actor) + TokenAdd(FabricTokenAddArgs), + /// List tokens + TokenList(FabricTokenListArgs), +} + +#[derive(Debug, Args)] +pub struct FabricAuditArgs { + /// Filter by repo (optional) + #[arg(long)] + pub repo: Option, + #[arg(long, value_name = "PATH")] + pub fabric: Option, + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct FabricPolicyGetArgs { + pub repo: String, + #[arg(long, value_name = "PATH")] + pub fabric: Option, + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct FabricPolicySetArgs { + pub repo: String, + #[arg(long)] + pub require_signed: Option, + #[arg(long)] + pub require_check_strict: Option, + #[arg(long)] + pub allow_branch: Vec, + #[arg(long)] + pub block_env: Vec, + #[arg(long, value_name = "PATH")] + pub fabric: Option, + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct FabricTokenAddArgs { + pub token: String, + pub actor: String, + #[arg(long, value_name = "PATH")] + pub fabric: Option, + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct FabricTokenListArgs { + #[arg(long, value_name = "PATH")] + pub fabric: Option, + #[arg(long, value_name = "PATH")] + pub registry: Option, +} + +#[derive(Debug, Args)] +pub struct ServeArgs { + /// Bind address (default: 127.0.0.1:3000) + #[arg(long, default_value = "127.0.0.1:3000")] + pub addr: String, + #[arg(long, value_name = "PATH")] + pub registry: Option, + #[arg(long, value_name = "PATH")] + pub fabric: Option, +} + +#[derive(Debug, Args)] +pub struct RemoteArgs { + #[command(subcommand)] + pub command: RemoteCommands, +} + +#[derive(Debug, Subcommand)] +pub enum RemoteCommands { + /// Push local state to remote registry + Push(RemotePushArgs), + /// Pull state from remote by hash + Pull(RemotePullArgs), + /// Resolve ref via remote + Resolve(RemoteResolveArgs), + /// Check drift via remote + Check(RemoteCheckArgs), +} + +#[derive(Debug, Args)] +pub struct RemotePushArgs { + #[arg(long, value_name = "URL")] + pub remote: String, + #[arg(long, value_name = "PATH")] + pub state_path: Option, + #[arg(long)] + pub token: Option, +} + +#[derive(Debug, Args)] +pub struct RemotePullArgs { + pub hash: String, + #[arg(long, value_name = "URL")] + pub remote: String, + #[arg(long, value_name = "PATH")] + pub out: Option, + #[arg(long)] + pub token: Option, +} + +#[derive(Debug, Args)] +pub struct RemoteResolveArgs { + pub repo: String, + pub branch: String, + #[arg(long, value_name = "URL")] + pub remote: String, + #[arg(long)] + pub token: Option, +} + +#[derive(Debug, Args)] +pub struct RemoteCheckArgs { + pub baseline_hash: String, + pub current_hash: String, + #[arg(long, value_name = "URL")] + pub remote: String, + #[arg(long, default_value_t = true, action = clap::ArgAction::Set)] + pub strict: bool, + #[arg(long, default_value_t = false)] + pub json: bool, +} + +// --------------------------------------------------------------------------- +// Helpers — printing +// --------------------------------------------------------------------------- + +fn print_mount_header(signed: &crate::state::SignedState) { + let state = &signed.state; + let short_hash = if signed.hash.len() >= 12 { + &signed.hash[..12] + } else { + &signed.hash + }; + let sig_label = if signed.signature.is_some() { + "signed" + } else { + "unsigned" + }; + + println!("TAPROOT MOUNT"); + println!("─────────────────────────────────────────"); + println!("repo: {}", state.base.repo); + println!("base: {}@{}", state.base.branch, state.base.commit); + println!("state: {sig_label} · sha256:{short_hash}"); + println!("runtimes: {}", state.runtimes.len()); + for r in &state.runtimes { + println!(" - {}: {} (pinned={})", r.name, r.version, r.pinned); + } + println!("containers: {}", state.containers.len()); + for c in &state.containers { + println!(" - {}: {} ({})", c.name, c.version, c.image); + } + println!("env-vars: {}", state.env_vars.len()); +} + +fn print_status_line(ok: bool) { + if ok { + println!("status: ▶ INHERITED — ready to work"); + } else { + println!("status: ✗ DRIFTED — state verification failed"); + } +} + +fn print_unsigned_warning() { + println!("warning: ⚠ UNSIGNED — hash ok, not cryptographically signed"); +} +// Handlers +// --------------------------------------------------------------------------- + +pub fn handle_init(args: InitArgs) -> Result<(), TaprootError> { + validate_non_empty("repo", &args.repo)?; + validate_non_empty("branch", &args.branch)?; + validate_non_empty("commit", &args.commit)?; + + let state_path = resolve_state_path(args.state_path); + tracing::info!(?state_path, repo = %args.repo, "init state"); + + let state = TaprootState::new(args.repo.clone(), args.branch.clone(), args.commit.clone()); + + let signed = if args.no_sign { + let hash = StateEngine::hash(&state)?; + crate::state::SignedState { + state, + hash, + signature: None, + public_key: None, + } + } else { + // Prefer stored keys if available, else generate ephemeral + let keys_path = resolve_keys_path(None); + let (priv_key, key_info) = if keys_path.exists() { + match crate::keys::KeyStore::init(&keys_path).and_then(|ks| { + let kp = ks.default_key()?; + Ok(( + kp.private_key.clone(), + format!("key {} ({})", kp.id, &kp.public_key[..16]), + )) + }) { + Ok((k, info)) => (k, Some(info)), + Err(_) => (StateEngine::generate_keypair().0, None), + } + } else { + (StateEngine::generate_keypair().0, None) + }; + let s = StateEngine::sign(&state, &priv_key)?; + if let Some(info) = key_info { + println!("signing with {info}"); + } else { + println!("signing with ephemeral key (no keys found, run `taproot keys generate`)"); + } + s + }; + + if let Some(parent) = state_path.parent() { + if !parent.as_os_str().is_empty() { + std::fs::create_dir_all(parent)?; + } + } + + StateEngine::save(&state_path, &signed)?; + + // Header — similar to README / mount but labelled for init + let short_hash = if signed.hash.len() >= 12 { + &signed.hash[..12] + } else { + &signed.hash + }; + let sig_label = if signed.signature.is_some() { + "signed" + } else { + "unsigned" + }; + + println!("TAPROOT INIT"); + println!("─────────────────────────────────────────"); + println!("repo: {}", signed.state.base.repo); + println!( + "base: {}@{}", + signed.state.base.branch, signed.state.base.commit + ); + println!("state: {sig_label} · sha256:{short_hash}"); + println!("hash: {}", signed.hash); + if let Some(pk) = &signed.public_key { + let preview = if pk.len() >= 16 { &pk[..16] } else { pk }; + println!("pubkey: {preview}..."); + } + println!("path: {}", display_state_path(&state_path)); + println!(); + print_status_line(true); + println!(); + println!("[next: taproot mount ]"); + + Ok(()) +} + +pub fn handle_mount(args: MountArgs) -> Result<(), TaprootError> { + let state_path = resolve_state_path(args.state_path); + tracing::info!(?state_path, ?args.path, "mount"); + + let signed = match StateEngine::load(&state_path) { + Ok(s) => s, + Err(e) => { + eprintln!( + "warning: failed to load state from {}: {e}", + display_state_path(&state_path) + ); + if !Path::new(&state_path).exists() { + eprintln!("hint: run `taproot init --repo --branch --commit ` first"); + } + println!(); + println!("status: ✗ ERROR — state not found or invalid"); + println!(); + return Err(e); + } + }; + + print_mount_header(&signed); + println!(); + println!("mount: {}", args.path.display()); + let target_meta = std::fs::symlink_metadata(&args.path); + match &target_meta { + Ok(m) if m.is_dir() => println!("target: exists (directory)"), + Ok(m) if m.file_type().is_symlink() => { + println!("target: exists (symlink — will be rejected)") + } + Ok(_) => println!("target: exists (not a directory — will be rejected)"), + Err(_) => println!("target: not found"), + } + println!("hash: {}", signed.hash); + if signed.signature.is_none() { + print_unsigned_warning(); + } + println!(); + + // Validate mountpoint before honoring --no-fuse — CI must not hide symlink/file attacks + if let Ok(m) = &target_meta { + if m.file_type().is_symlink() { + let e = TaprootError::Mount(format!( + "mountpoint is a symlink (refusing): {}", + args.path.display() + )); + eprintln!("✗ mount failed: {e}"); + println!("status: ✗ MOUNT FAILED — symlink rejected"); + println!(); + return Err(e); + } + if !m.is_dir() { + let e = TaprootError::Mount(format!( + "mountpoint is not a directory: {}", + args.path.display() + )); + eprintln!("✗ mount failed: {e}"); + println!("status: ✗ MOUNT FAILED — not a directory"); + println!(); + return Err(e); + } + } else if !args.no_fuse { + // real mount requires existing dir + let e = TaprootError::Mount(format!( + "mountpoint does not exist: {}", + args.path.display() + )); + eprintln!("✗ mount failed: {e}"); + println!("status: ✗ MOUNT FAILED — mountpoint missing"); + println!(); + return Err(e); + } + + if args.no_fuse { + println!("(no-fuse — skipping FUSE mount, mountpoint validated)"); + print_status_line(true); + println!(); + return Ok(()); + } + + println!( + "attempting FUSE mount at {} (read-only, Ctrl-C to unmount)...", + args.path.display() + ); + match crate::mount::mount_readonly(&args.path, &signed) { + Ok(()) => { + print_status_line(true); + println!(); + Ok(()) + } + Err(e) => { + eprintln!("✗ mount failed: {e}"); + println!("status: ✗ MOUNT FAILED — {}", e); + println!(); + Err(e) + } + } +} + +pub fn handle_status(args: StatusArgs) -> Result<(), TaprootError> { + let state_path = resolve_state_path(args.state_path); + tracing::info!(?state_path, "status"); + + let signed = StateEngine::load(&state_path)?; + + println!("TAPROOT STATUS"); + println!("─────────────────────────────────────────"); + // reuse same header but with correct title + let short_hash = if signed.hash.len() >= 12 { + &signed.hash[..12] + } else { + &signed.hash + }; + let sig_label = if signed.signature.is_some() { + "signed" + } else { + "unsigned" + }; + println!("repo: {}", signed.state.base.repo); + println!( + "base: {}@{}", + signed.state.base.branch, signed.state.base.commit + ); + println!("state: {sig_label} · sha256:{short_hash}"); + println!("runtimes: {}", signed.state.runtimes.len()); + println!("containers: {}", signed.state.containers.len()); + println!("env-vars: {}", signed.state.env_vars.len()); + println!(); + println!("hash: {}", signed.hash); + if let Some(pk) = &signed.public_key { + let preview = if pk.len() >= 16 { &pk[..16] } else { pk }; + println!("pubkey: {preview}..."); + } + if signed.signature.is_none() { + print_unsigned_warning(); + } + println!("path: {}", display_state_path(&state_path)); + println!(); + print_status_line(true); + println!(); + + Ok(()) +} + +pub fn handle_verify(args: VerifyArgs) -> Result<(), TaprootError> { + let state_path = resolve_state_path(args.state_path); + tracing::info!(?state_path, "verify"); + + match StateEngine::load(&state_path) { + Ok(signed) => { + if signed.signature.is_none() { + println!("⚠ verified (unsigned) — sha256:{}", signed.hash); + println!( + " repo: {} base: {}@{}", + signed.state.base.repo, signed.state.base.branch, signed.state.base.commit + ); + println!(" path: {}", display_state_path(&state_path)); + print_unsigned_warning(); + } else { + println!("✓ verified — sha256:{}", signed.hash); + println!( + " repo: {} base: {}@{}", + signed.state.base.repo, signed.state.base.branch, signed.state.base.commit + ); + println!(" path: {}", display_state_path(&state_path)); + } + Ok(()) + } + Err(e) => { + eprintln!( + "✗ verification failed for {}: {e}", + display_state_path(&state_path) + ); + Err(e) + } + } +} + +pub fn handle_keys(args: KeysArgs) -> Result<(), TaprootError> { + match args.command { + KeysCommands::Generate(a) => handle_keys_generate(a), + KeysCommands::List(a) => handle_keys_list(a), + KeysCommands::Show(a) => handle_keys_show(a), + KeysCommands::Rotate(a) => handle_keys_rotate(a), + } +} + +pub fn handle_keys_generate(args: KeysGenerateArgs) -> Result<(), TaprootError> { + let keys_path = resolve_keys_path(args.keys); + let ks = crate::keys::KeyStore::init(&keys_path)?; + let kp = ks.generate(args.id)?; + println!("TAPROOT KEYS GENERATE"); + println!("─────────────────────────────────────────"); + println!("id: {}", kp.id); + println!("pubkey: {}", kp.public_key); + println!("path: {}/{}", display_state_path(&keys_path), kp.id); + println!(); + println!("✓ generated — store private key securely, pubkey is shareable"); + Ok(()) +} + +pub fn handle_keys_list(args: KeysListArgs) -> Result<(), TaprootError> { + let keys_path = resolve_keys_path(args.keys); + let ks = crate::keys::KeyStore::init(&keys_path)?; + let list = ks.list()?; + println!("TAPROOT KEYS LIST"); + println!("─────────────────────────────────────────"); + println!("keys: {}", display_state_path(&keys_path)); + if list.is_empty() { + println!("(no keys — run `taproot keys generate`)"); + } else { + for k in &list { + let active = if k.active { "active" } else { "inactive" }; + println!( + " {} {} {active} {}", + k.id, + &k.public_key[..16], + k.created_at + ); + } + } + Ok(()) +} + +pub fn handle_keys_show(args: KeysShowArgs) -> Result<(), TaprootError> { + let keys_path = resolve_keys_path(args.keys); + let ks = crate::keys::KeyStore::init(&keys_path)?; + let kp = ks.get(&args.id)?; + println!("{}", serde_json::to_string_pretty(&kp).unwrap()); + Ok(()) +} + +pub fn handle_keys_rotate(args: KeysRotateArgs) -> Result<(), TaprootError> { + let keys_path = resolve_keys_path(args.keys); + let ks = crate::keys::KeyStore::init(&keys_path)?; + let kp = ks.rotate(args.deactivate_old)?; + println!("✓ rotated — new key {}", kp.id); + println!(" pubkey: {}", kp.public_key); + if args.deactivate_old { + println!(" old keys deactivated"); + } + Ok(()) +} + +pub fn handle_fabric(args: FabricArgs) -> Result<(), TaprootError> { + match args.command { + FabricCommands::Audit(a) => handle_fabric_audit(a), + FabricCommands::PolicyGet(a) => handle_fabric_policy_get(a), + FabricCommands::PolicySet(a) => handle_fabric_policy_set(a), + FabricCommands::TokenAdd(a) => handle_fabric_token_add(a), + FabricCommands::TokenList(a) => handle_fabric_token_list(a), + } +} + +pub fn handle_fabric_audit(args: FabricAuditArgs) -> Result<(), TaprootError> { + let fabric_path = resolve_fabric_path(args.fabric); + let registry_path = resolve_registry_path(args.registry); + let fabric = crate::fabric::Fabric::init(&fabric_path, ®istry_path)?; + let entries = fabric.audit_log(args.repo.as_deref())?; + println!("TAPROOT FABRIC AUDIT"); + println!("─────────────────────────────────────────"); + if entries.is_empty() { + println!("(no audit entries)"); + } else { + for e in &entries { + println!( + "{} {} {}/{} {} signed={}", + e.ts, + e.action, + e.repo, + e.branch, + &e.hash[..12], + e.signed + ); + } + println!(); + println!("{} entries", entries.len()); + } + Ok(()) +} + +pub fn handle_fabric_policy_get(args: FabricPolicyGetArgs) -> Result<(), TaprootError> { + let fabric_path = resolve_fabric_path(args.fabric); + let registry_path = resolve_registry_path(args.registry); + let fabric = crate::fabric::Fabric::init(&fabric_path, ®istry_path)?; + let p = fabric.get_policy(&args.repo)?; + println!("{}", serde_json::to_string_pretty(&p).unwrap()); + Ok(()) +} + +pub fn handle_fabric_policy_set(args: FabricPolicySetArgs) -> Result<(), TaprootError> { + let fabric_path = resolve_fabric_path(args.fabric); + let registry_path = resolve_registry_path(args.registry); + let fabric = crate::fabric::Fabric::init(&fabric_path, ®istry_path)?; + let mut p = fabric.get_policy(&args.repo)?; + p.repo = args.repo.clone(); + if let Some(v) = args.require_signed { + p.require_signed = v; + } + if let Some(v) = args.require_check_strict { + p.require_check_strict = v; + } + if !args.allow_branch.is_empty() { + p.allowed_branches = args.allow_branch.clone(); + } + if !args.block_env.is_empty() { + p.blocked_env_keys = args.block_env.clone(); + } + fabric.set_policy(&p)?; + println!("✓ policy updated for {}", p.repo); + println!("{}", serde_json::to_string_pretty(&p).unwrap()); + Ok(()) +} + +pub fn handle_fabric_token_add(args: FabricTokenAddArgs) -> Result<(), TaprootError> { + let fabric_path = resolve_fabric_path(args.fabric); + let registry_path = resolve_registry_path(args.registry); + let fabric = crate::fabric::Fabric::init(&fabric_path, ®istry_path)?; + fabric.add_token(&args.token, &args.actor)?; + println!("✓ token added for {}", args.actor); + Ok(()) +} + +pub fn handle_fabric_token_list(args: FabricTokenListArgs) -> Result<(), TaprootError> { + let fabric_path = resolve_fabric_path(args.fabric); + let registry_path = resolve_registry_path(args.registry); + let fabric = crate::fabric::Fabric::init(&fabric_path, ®istry_path)?; + let map = fabric.tokens()?; + println!("TAPROOT TOKENS"); + println!("─────────────────────────────────────────"); + if map.is_empty() { + println!("(no tokens — open registry)"); + } else { + for (tok, actor) in &map { + println!(" {actor:15} {}...", &tok[..8.min(tok.len())]); + } + } + Ok(()) +} + +pub fn handle_serve(args: ServeArgs) -> Result<(), TaprootError> { + let registry_path = resolve_registry_path(args.registry); + let fabric_path = resolve_fabric_path(args.fabric); + println!("TAPROOT SERVE"); + println!("─────────────────────────────────────────"); + println!("registry: {}", display_state_path(®istry_path)); + println!("fabric: {}", display_state_path(&fabric_path)); + println!("addr: {}", args.addr); + println!(); + let rt = tokio::runtime::Builder::new_multi_thread() + .enable_all() + .build() + .map_err(|e| TaprootError::Io(std::io::Error::other(e.to_string())))?; + rt.block_on(crate::server::serve(registry_path, fabric_path, args.addr))?; + Ok(()) +} + +pub fn handle_remote(args: RemoteArgs) -> Result<(), TaprootError> { + match args.command { + RemoteCommands::Push(a) => handle_remote_push(a), + RemoteCommands::Pull(a) => handle_remote_pull(a), + RemoteCommands::Resolve(a) => handle_remote_resolve(a), + RemoteCommands::Check(a) => handle_remote_check(a), + } +} + +fn with_auth( + mut req: reqwest::blocking::RequestBuilder, + token: Option, +) -> reqwest::blocking::RequestBuilder { + if let Some(tok) = token { + req = req.header("Authorization", format!("Bearer {tok}")); + } + req +} + +fn ensure_success( + resp: reqwest::blocking::Response, + ctx: &str, +) -> Result { + if !resp.status().is_success() { + let txt = resp.text().unwrap_or_default(); + return Err(TaprootError::InvalidKey(format!("{ctx} failed: {txt}"))); + } + Ok(resp) +} + +pub fn handle_remote_push(args: RemotePushArgs) -> Result<(), TaprootError> { + let state_path = resolve_state_path(args.state_path); + let bytes = std::fs::read(&state_path)?; + let signed: crate::state::SignedState = serde_json::from_slice(&bytes)?; + crate::engine::StateEngine::verify(&signed)?; + let url = format!("{}/v1/states", args.remote.trim_end_matches('/')); + let client = reqwest::blocking::Client::new(); + let req = with_auth(client.post(&url).json(&signed), args.token); + let resp = ensure_success( + req.send() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?, + "remote push", + )?; + let v: serde_json::Value = resp + .json() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + println!("✓ remote push ok — {}", v); + Ok(()) +} + +pub fn handle_remote_pull(args: RemotePullArgs) -> Result<(), TaprootError> { + let url = format!( + "{}/v1/states/{}", + args.remote.trim_end_matches('/'), + args.hash + ); + let client = reqwest::blocking::Client::new(); + let req = with_auth(client.get(&url), args.token); + let resp = ensure_success( + req.send() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?, + "remote pull", + )?; + let signed: crate::state::SignedState = resp + .json() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + crate::engine::StateEngine::verify(&signed)?; + if let Some(out) = args.out { + crate::engine::StateEngine::save(&out, &signed)?; + println!( + "✓ remote pull {} -> {}", + signed.hash, + display_state_path(&out) + ); + } else { + println!("{}", serde_json::to_string_pretty(&signed).unwrap()); + } + Ok(()) +} + +pub fn handle_remote_resolve(args: RemoteResolveArgs) -> Result<(), TaprootError> { + let repo = crate::registry::sanitize(&args.repo); + let branch = crate::registry::sanitize(&args.branch); + let url = format!( + "{}/v1/refs/{}/{}", + args.remote.trim_end_matches('/'), + repo, + branch + ); + let client = reqwest::blocking::Client::new(); + let req = with_auth(client.get(&url), args.token); + let resp = ensure_success( + req.send() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?, + "remote resolve", + )?; + let v: serde_json::Value = resp + .json() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + println!("{}", v["hash"].as_str().unwrap_or("")); + Ok(()) +} + +pub fn handle_remote_check(args: RemoteCheckArgs) -> Result<(), TaprootError> { + let url = format!("{}/v1/check", args.remote.trim_end_matches('/')); + let client = reqwest::blocking::Client::new(); + let body = serde_json::json!({"baseline_hash": args.baseline_hash, "current_hash": args.current_hash, "strict": args.strict}); + let req = client.post(&url).json(&body); + let resp = ensure_success( + req.send() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?, + "remote check", + )?; + let v: serde_json::Value = resp + .json() + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + if args.json { + println!("{}", serde_json::to_string_pretty(&v).unwrap()); + } else { + println!("drifted: {} breaking: {}", v["drifted"], v["has_breaking"]); + if let Some(diffs) = v["diffs"].as_array() { + for d in diffs { + println!(" {}: {}", d["path"], d["kind"]); + } + } + } + if v["has_breaking"].as_bool().unwrap_or(false) { + return Err(TaprootError::Drift { + breaking: 1, + warning: 0, + }); + } + Ok(()) +} + +pub fn handle_check(args: CheckArgs) -> Result<(), TaprootError> { + use crate::diff::{diff_states, has_breaking, CheckReport, EndpointInfo, Severity}; + + let state_path = resolve_state_path(args.state_path); + let baseline_path = args.baseline; + + tracing::info!(?state_path, ?baseline_path, "check"); + + // Load and verify both files — strict: unsigned is error + let current = StateEngine::load(&state_path).map_err(|e| { + eprintln!("✗ check failed — current state invalid: {e}"); + e + })?; + let baseline = StateEngine::load(&baseline_path).map_err(|e| { + if !baseline_path.exists() { + eprintln!( + "hint: baseline not found at {}", + display_state_path(&baseline_path) + ); + return TaprootError::BaselineMissing(display_state_path(&baseline_path)); + } + eprintln!("✗ check failed — baseline invalid: {e}"); + e + })?; + + // Strict: unsigned states are not allowed (fail closed) + // Both must be signed; otherwise treat as breaking drift + let mut unsigned_warnings = Vec::new(); + if current.signature.is_none() { + unsigned_warnings + .push("current state is unsigned — not cryptographically signed".to_string()); + } + if baseline.signature.is_none() { + unsigned_warnings.push("baseline is unsigned — not cryptographically signed".to_string()); + } + + // Resolve strict: --no-strict overrides --strict + let effective_strict = if args.no_strict { false } else { args.strict }; + let diffs = diff_states(&baseline.state, ¤t.state, effective_strict); + + // Count breaking vs warning + let breaking = diffs + .iter() + .filter(|d| d.severity == Severity::Breaking) + .count(); + let warnings = diffs + .iter() + .filter(|d| d.severity == Severity::Warning) + .count(); + + let has_unsigned_breaking = !unsigned_warnings.is_empty(); + let is_breaking_drift = breaking > 0 || has_unsigned_breaking; + let is_any_drift = !diffs.is_empty() || has_unsigned_breaking; + + let report = CheckReport { + version: "1.0".to_string(), + baseline: EndpointInfo { + path: baseline_path.display().to_string(), + hash: baseline.hash.clone(), + signed: baseline.signature.is_some(), + }, + current: EndpointInfo { + path: state_path.display().to_string(), + hash: current.hash.clone(), + signed: current.signature.is_some(), + }, + drifted: is_any_drift, + has_breaking: is_breaking_drift + || (effective_strict && warnings > 0 && !args.allow_warnings), + diffs: diffs.clone(), + warnings: unsigned_warnings.clone(), + }; + + if args.json { + println!("{}", serde_json::to_string_pretty(&report).unwrap()); + } else { + println!("TAPROOT CHECK"); + println!("─────────────────────────────────────────"); + let b_short = if baseline.hash.len() >= 12 { + &baseline.hash[..12] + } else { + &baseline.hash + }; + let c_short = if current.hash.len() >= 12 { + ¤t.hash[..12] + } else { + ¤t.hash + }; + let b_sig = if baseline.signature.is_some() { + "signed" + } else { + "unsigned" + }; + let c_sig = if current.signature.is_some() { + "signed" + } else { + "unsigned" + }; + println!( + "baseline: {} ({b_sig} · sha256:{b_short})", + display_state_path(&baseline_path) + ); + println!( + "current: {} ({c_sig} · sha256:{c_short})", + display_state_path(&state_path) + ); + println!( + "base: {} {}@{} -> {} {}@{}", + baseline.state.base.repo, + baseline.state.base.branch, + baseline.state.base.commit, + current.state.base.repo, + current.state.base.branch, + current.state.base.commit, + ); + println!(); + if diffs.is_empty() && unsigned_warnings.is_empty() { + println!("drift: none — no field drift"); + println!(); + println!("status: ▶ INHERITED — no drift"); + } else { + println!( + "drift: {breaking} breaking, {warnings} warning{}", + if warnings == 1 { "" } else { "s" } + ); + if !unsigned_warnings.is_empty() { + for w in &unsigned_warnings { + println!(" ✗ {w} (breaking)"); + } + } + for d in &diffs { + let icon = if d.severity == Severity::Breaking { + "✗" + } else { + "⚠" + }; + let sev = if d.severity == Severity::Breaking { + "breaking" + } else { + "warning" + }; + match d.kind { + crate::diff::DiffKind::Changed => { + let exp = d.expected.as_deref().unwrap_or("null"); + let act = d.actual.as_deref().unwrap_or("null"); + println!(" {icon} {}: {} -> {} (changed, {sev})", d.path, exp, act); + } + crate::diff::DiffKind::Added => { + let act = d.actual.as_deref().unwrap_or(""); + println!(" {icon} {}: +{} (added, {sev})", d.path, act); + } + crate::diff::DiffKind::Removed => { + let exp = d.expected.as_deref().unwrap_or(""); + println!(" {icon} {}: -{} (removed, {sev})", d.path, exp); + } + } + } + println!(); + if is_breaking_drift || (effective_strict && warnings > 0) { + println!( + "status: ✗ DRIFTED — {} breaking", + breaking + unsigned_warnings.len() + ); + } else { + println!("status: ⚠ DRIFTED — warnings only (pass with --allow-warnings or --no-strict)"); + } + } + println!(); + } + + // Strict exit logic: be as strict as possible + // - unsigned => always fail (each unsigned counts as breaking) + // - any breaking => fail + // - warnings + strict => fail, warnings + allow_warnings => pass + let unsigned_breaking = unsigned_warnings.len(); + if has_unsigned_breaking { + return Err(TaprootError::Drift { + breaking: breaking + unsigned_breaking, + warning: warnings, + }); + } + if breaking > 0 { + return Err(TaprootError::Drift { + breaking, + warning: warnings, + }); + } + if warnings > 0 && effective_strict && !args.allow_warnings { + return Err(TaprootError::Drift { + breaking, + warning: warnings, + }); + } + // Validate has_breaking helper stays consistent + debug_assert_eq!(has_breaking(&diffs), breaking > 0); + + Ok(()) +} + +// --------------------------------------------------------------------------- +// Registry handlers +// --------------------------------------------------------------------------- + +pub fn handle_registry(args: RegistryArgs) -> Result<(), TaprootError> { + match args.command { + RegistryCommands::Push(a) => handle_registry_push(a), + RegistryCommands::Pull(a) => handle_registry_pull(a), + RegistryCommands::List(a) => handle_registry_list(a), + RegistryCommands::Show(a) => handle_registry_show(a), + RegistryCommands::Resolve(a) => handle_registry_resolve(a), + RegistryCommands::Log(a) => handle_registry_log(a), + } +} + +pub fn handle_registry_push(args: RegistryPushArgs) -> Result<(), TaprootError> { + let state_path = resolve_state_path(args.state_path); + let registry_path = resolve_registry_path(args.registry); + tracing::info!(?state_path, ?registry_path, "registry push"); + + let signed = StateEngine::load(&state_path).map_err(|e| { + eprintln!( + "✗ registry push failed — state invalid at {}: {e}", + display_state_path(&state_path) + ); + e + })?; + + // Policy check: if fabric policy exists and requires signed, reject unsigned locally too + let fabric_path = resolve_fabric_path(None); + if fabric_path.exists() { + if let Ok(fabric) = crate::fabric::Fabric::init(&fabric_path, ®istry_path) { + let policy = fabric + .get_policy(&signed.state.base.repo) + .unwrap_or_default(); + if policy.require_signed && signed.signature.is_none() { + eprintln!( + "✗ policy blocks unsigned push for repo {} (require_signed=true)", + signed.state.base.repo + ); + return Err(TaprootError::InvalidKey( + "policy requires signed state".into(), + )); + } + } + } + + let registry = crate::registry::Registry::init(®istry_path)?; + let hash = registry.push(&signed)?; + + // Audit local push as well (so local and remote are consistent) + { + let fabric_path = resolve_fabric_path(None); + if let Ok(fabric) = crate::fabric::Fabric::init(&fabric_path, ®istry_path) { + let _ = fabric.audit(crate::fabric::AuditEntry { + ts: chrono::Utc::now(), + action: "push".into(), + repo: signed.state.base.repo.clone(), + branch: signed.state.base.branch.clone(), + hash: hash.clone(), + actor: "local".into(), + signed: signed.signature.is_some(), + }); + } + } + + let short = if hash.len() >= 12 { &hash[..12] } else { &hash }; + let sig_label = if signed.signature.is_some() { + "signed" + } else { + "unsigned" + }; + println!("TAPROOT REGISTRY PUSH"); + println!("─────────────────────────────────────────"); + println!("repo: {}", signed.state.base.repo); + println!("branch: {}", signed.state.base.branch); + println!("hash: {hash} (sha256:{short}, {sig_label})"); + println!("registry: {}", display_state_path(®istry_path)); + println!( + "object: {}/objects/{hash}.json", + display_state_path(®istry_path) + ); + println!( + "ref: {}/refs/{}/{}", + display_state_path(®istry_path), + crate::registry::sanitize(&signed.state.base.repo), + crate::registry::sanitize(&signed.state.base.branch) + ); + println!(); + println!("✓ pushed — {sig_label} · sha256:{short}"); + Ok(()) +} + +pub fn handle_registry_pull(args: RegistryPullArgs) -> Result<(), TaprootError> { + let registry_path = resolve_registry_path(args.registry); + tracing::info!(hash=%args.hash, ?registry_path, "registry pull"); + + let registry = crate::registry::Registry::init(®istry_path)?; + let signed = registry.pull(&args.hash)?; + + if let Some(out) = args.out { + StateEngine::save(&out, &signed)?; + println!("✓ pulled {} -> {}", signed.hash, display_state_path(&out)); + } else { + let short = if signed.hash.len() >= 12 { + &signed.hash[..12] + } else { + &signed.hash + }; + let sig_label = if signed.signature.is_some() { + "signed" + } else { + "unsigned" + }; + println!("TAPROOT REGISTRY PULL"); + println!("─────────────────────────────────────────"); + println!("hash: {} ({sig_label} · sha256:{short})", signed.hash); + println!("repo: {}", signed.state.base.repo); + println!( + "base: {}@{}", + signed.state.base.branch, signed.state.base.commit + ); + println!("registry: {}", display_state_path(®istry_path)); + println!("runtimes: {}", signed.state.runtimes.len()); + println!("containers: {}", signed.state.containers.len()); + println!("env-vars: {}", signed.state.env_vars.len()); + if signed.signature.is_none() { + print_unsigned_warning(); + } + println!(); + // Also print state path hint + println!( + "[tip: taproot registry pull {} --out .taproot/state.json]", + signed.hash + ); + } + Ok(()) +} + +pub fn handle_registry_list(args: RegistryListArgs) -> Result<(), TaprootError> { + let registry_path = resolve_registry_path(args.registry); + tracing::info!(repo=%args.repo, ?registry_path, "registry list"); + + let registry = crate::registry::Registry::init(®istry_path)?; + let entries = registry.list(&args.repo)?; + + println!("TAPROOT REGISTRY LIST"); + println!("─────────────────────────────────────────"); + println!("repo: {}", args.repo); + println!("registry: {}", display_state_path(®istry_path)); + println!(); + if entries.is_empty() { + println!("(no refs for repo {})", args.repo); + } else { + for (branch, hash) in &entries { + let short = if hash.len() >= 12 { &hash[..12] } else { hash }; + println!(" {branch:20} {short} {hash}"); + } + println!(); + println!("{} branch(es)", entries.len()); + } + Ok(()) +} + +pub fn handle_registry_show(args: RegistryShowArgs) -> Result<(), TaprootError> { + // Alias for pull without writing — pretty-print SignedState JSON + let registry_path = resolve_registry_path(args.registry); + tracing::info!(hash=%args.hash, ?registry_path, "registry show"); + + let registry = crate::registry::Registry::init(®istry_path)?; + let signed = registry.pull(&args.hash)?; + let json = serde_json::to_string_pretty(&signed).unwrap(); + println!("{json}"); + Ok(()) +} + +pub fn handle_registry_resolve(args: RegistryResolveArgs) -> Result<(), TaprootError> { + let registry_path = resolve_registry_path(args.registry); + tracing::info!(repo=%args.repo, branch=%args.branch, ?registry_path, "registry resolve"); + + let registry = crate::registry::Registry::init(®istry_path)?; + match registry.resolve_ref(&args.repo, &args.branch)? { + Some(hash) => { + println!("{hash}"); + Ok(()) + } + None => { + eprintln!( + "ref not found: {}/{} in {}", + args.repo, + args.branch, + display_state_path(®istry_path) + ); + Err(TaprootError::RefNotFound { + repo: args.repo, + branch: args.branch, + }) + } + } +} + +pub fn handle_registry_log(args: RegistryLogArgs) -> Result<(), TaprootError> { + let registry_path = resolve_registry_path(args.registry); + tracing::info!(repo=%args.repo, branch=%args.branch, ?registry_path, "registry log"); + + let registry = crate::registry::Registry::init(®istry_path)?; + let entries = registry.log(&args.repo, &args.branch)?; + + println!("TAPROOT REGISTRY LOG"); + println!("─────────────────────────────────────────"); + println!("repo: {}", args.repo); + println!("branch: {}", args.branch); + println!("registry: {}", display_state_path(®istry_path)); + println!(); + if entries.is_empty() { + println!("(no entries for {}/{})", args.repo, args.branch); + } else { + for signed in &entries { + let short = if signed.hash.len() >= 12 { + &signed.hash[..12] + } else { + &signed.hash + }; + let sig_label = if signed.signature.is_some() { + "signed" + } else { + "unsigned" + }; + println!( + "* {} {}@{} {sig_label} · sha256:{short}", + signed.hash, signed.state.base.branch, signed.state.base.commit + ); + if let Some(notes) = &signed.state.notes { + println!(" notes: {notes}"); + } + } + println!(); + println!("{} entr(ies)", entries.len()); + } + Ok(()) +} diff --git a/src/diff.rs b/src/diff.rs new file mode 100644 index 0000000..61a820a --- /dev/null +++ b/src/diff.rs @@ -0,0 +1,382 @@ +use serde::{Deserialize, Serialize}; +use std::collections::{BTreeMap, BTreeSet}; + +use crate::state::TaprootState; + +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +#[serde(rename_all = "lowercase")] +pub enum DiffKind { + Added, + Removed, + Changed, +} + +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +#[serde(rename_all = "lowercase")] +pub enum Severity { + Breaking, + Warning, +} + +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct FieldDiff { + pub path: String, + pub kind: DiffKind, + #[serde(skip_serializing_if = "Option::is_none")] + pub expected: Option, + #[serde(skip_serializing_if = "Option::is_none")] + pub actual: Option, + pub severity: Severity, +} + +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct CheckReport { + pub version: String, + pub baseline: EndpointInfo, + pub current: EndpointInfo, + pub drifted: bool, + pub has_breaking: bool, + pub diffs: Vec, + #[serde(default, skip_serializing_if = "Vec::is_empty")] + pub warnings: Vec, +} + +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct EndpointInfo { + pub path: String, + pub hash: String, + pub signed: bool, +} + +pub fn diff_states( + baseline: &TaprootState, + current: &TaprootState, + strict: bool, +) -> Vec { + let mut diffs = Vec::new(); + + // version — always breaking + if baseline.version != current.version { + diffs.push(FieldDiff { + path: "version".into(), + kind: DiffKind::Changed, + expected: Some(baseline.version.clone()), + actual: Some(current.version.clone()), + severity: Severity::Breaking, + }); + } + + // base — repo is breaking, branch/commit configurable + if baseline.base.repo != current.base.repo { + diffs.push(FieldDiff { + path: "base.repo".into(), + kind: DiffKind::Changed, + expected: Some(baseline.base.repo.clone()), + actual: Some(current.base.repo.clone()), + severity: Severity::Breaking, + }); + } + if baseline.base.branch != current.base.branch { + diffs.push(FieldDiff { + path: "base.branch".into(), + kind: DiffKind::Changed, + expected: Some(baseline.base.branch.clone()), + actual: Some(current.base.branch.clone()), + severity: if strict { + Severity::Breaking + } else { + Severity::Warning + }, + }); + } + if baseline.base.commit != current.base.commit { + diffs.push(FieldDiff { + path: "base.commit".into(), + kind: DiffKind::Changed, + expected: Some(baseline.base.commit.clone()), + actual: Some(current.base.commit.clone()), + severity: if strict { + Severity::Breaking + } else { + Severity::Warning + }, + }); + } + + // runtimes — keyed by name + let base_rts: BTreeMap<&str, &crate::state::Runtime> = baseline + .runtimes + .iter() + .map(|r| (r.name.as_str(), r)) + .collect(); + let cur_rts: BTreeMap<&str, &crate::state::Runtime> = current + .runtimes + .iter() + .map(|r| (r.name.as_str(), r)) + .collect(); + let all_rt_names: BTreeSet<&str> = base_rts + .keys() + .copied() + .chain(cur_rts.keys().copied()) + .collect(); + for name in all_rt_names { + match (base_rts.get(name), cur_rts.get(name)) { + (Some(b), Some(c)) => { + if b.version != c.version { + diffs.push(FieldDiff { + path: format!("runtimes.{name}.version"), + kind: DiffKind::Changed, + expected: Some(b.version.clone()), + actual: Some(c.version.clone()), + severity: Severity::Breaking, + }); + } + if b.pinned != c.pinned { + diffs.push(FieldDiff { + path: format!("runtimes.{name}.pinned"), + kind: DiffKind::Changed, + expected: Some(b.pinned.to_string()), + actual: Some(c.pinned.to_string()), + severity: if strict { + Severity::Breaking + } else { + Severity::Warning + }, + }); + } + } + (Some(b), None) => diffs.push(FieldDiff { + path: format!("runtimes.{name}"), + kind: DiffKind::Removed, + expected: Some(b.version.clone()), + actual: None, + severity: Severity::Breaking, + }), + (None, Some(c)) => diffs.push(FieldDiff { + path: format!("runtimes.{name}"), + kind: DiffKind::Added, + expected: None, + actual: Some(c.version.clone()), + severity: Severity::Breaking, + }), + (None, None) => unreachable!(), + } + } + + // containers — keyed by name + let base_ct: BTreeMap<&str, &crate::state::Container> = baseline + .containers + .iter() + .map(|c| (c.name.as_str(), c)) + .collect(); + let cur_ct: BTreeMap<&str, &crate::state::Container> = current + .containers + .iter() + .map(|c| (c.name.as_str(), c)) + .collect(); + let all_ct_names: BTreeSet<&str> = base_ct + .keys() + .copied() + .chain(cur_ct.keys().copied()) + .collect(); + for name in all_ct_names { + match (base_ct.get(name), cur_ct.get(name)) { + (Some(b), Some(c)) => { + if b.version != c.version { + diffs.push(FieldDiff { + path: format!("containers.{name}.version"), + kind: DiffKind::Changed, + expected: Some(b.version.clone()), + actual: Some(c.version.clone()), + severity: Severity::Breaking, + }); + } + if b.image != c.image { + diffs.push(FieldDiff { + path: format!("containers.{name}.image"), + kind: DiffKind::Changed, + expected: Some(b.image.clone()), + actual: Some(c.image.clone()), + severity: Severity::Breaking, + }); + } + if b.signed != c.signed { + // flipping signed to false is always breaking (supply chain) + let sev = if (!c.signed && b.signed) || strict { + Severity::Breaking + } else { + Severity::Warning + }; + diffs.push(FieldDiff { + path: format!("containers.{name}.signed"), + kind: DiffKind::Changed, + expected: Some(b.signed.to_string()), + actual: Some(c.signed.to_string()), + severity: sev, + }); + } + } + (Some(b), None) => diffs.push(FieldDiff { + path: format!("containers.{name}"), + kind: DiffKind::Removed, + expected: Some(b.image.clone()), + actual: None, + severity: Severity::Breaking, + }), + (None, Some(c)) => diffs.push(FieldDiff { + path: format!("containers.{name}"), + kind: DiffKind::Added, + expected: None, + actual: Some(c.image.clone()), + severity: Severity::Breaking, + }), + (None, None) => unreachable!(), + } + } + + // env_vars — BTreeMap already sorted + let all_keys: BTreeSet<&String> = baseline + .env_vars + .keys() + .chain(current.env_vars.keys()) + .collect(); + for k in all_keys { + match (baseline.env_vars.get(k), current.env_vars.get(k)) { + (Some(b), Some(c)) if b != c => diffs.push(FieldDiff { + path: format!("env_vars.{k}"), + kind: DiffKind::Changed, + expected: Some(b.clone()), + actual: Some(c.clone()), + severity: Severity::Breaking, + }), + (Some(b), None) => diffs.push(FieldDiff { + path: format!("env_vars.{k}"), + kind: DiffKind::Removed, + expected: Some(b.clone()), + actual: None, + severity: Severity::Breaking, + }), + (None, Some(c)) => diffs.push(FieldDiff { + path: format!("env_vars.{k}"), + kind: DiffKind::Added, + expected: None, + actual: Some(c.clone()), + severity: Severity::Breaking, + }), + _ => {} + } + } + + // notes — warning unless strict then breaking + if baseline.notes != current.notes { + diffs.push(FieldDiff { + path: "notes".into(), + kind: DiffKind::Changed, + expected: baseline.notes.clone(), + actual: current.notes.clone(), + severity: if strict { + Severity::Breaking + } else { + Severity::Warning + }, + }); + } + + // created_at is intentionally ignored — always drifts + + diffs +} + +pub fn has_breaking(diffs: &[FieldDiff]) -> bool { + diffs.iter().any(|d| d.severity == Severity::Breaking) +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::state::TaprootState; + + fn base() -> TaprootState { + TaprootState::new("myapp", "main", "abc123") + .with_runtime("python", "3.11.4") + .with_env("FOO", "bar") + } + + #[test] + fn no_diff_on_identical() { + let s = base(); + let mut b = s.clone(); + let mut c = s.clone(); + // created_at differs but ignored + b.created_at = chrono::Utc::now(); + c.created_at = chrono::Utc::now(); + assert!(diff_states(&b, &c, true).is_empty()); + assert!(diff_states(&b, &c, false).is_empty()); + } + + #[test] + fn detects_env_added() { + let b = base(); + let mut c = b.clone(); + c.env_vars.insert("NEW".into(), "1".into()); + let diffs = diff_states(&b, &c, false); + assert!(diffs + .iter() + .any(|d| d.path == "env_vars.NEW" && d.kind == DiffKind::Added)); + assert!(has_breaking(&diffs)); + } + + #[test] + fn detects_runtime_version_change() { + let b = base(); + let mut c = b.clone(); + c.runtimes[0].version = "3.12.0".into(); + let diffs = diff_states(&b, &c, false); + assert!(diffs.iter().any(|d| d.path == "runtimes.python.version")); + } + + #[test] + fn ignores_created_at() { + let mut b = base(); + let mut c = base(); + b.created_at = chrono::DateTime::parse_from_rfc3339("2020-01-01T00:00:00Z") + .unwrap() + .with_timezone(&chrono::Utc); + c.created_at = chrono::DateTime::parse_from_rfc3339("2025-01-01T00:00:00Z") + .unwrap() + .with_timezone(&chrono::Utc); + assert!(diff_states(&b, &c, true).is_empty()); + } + + #[test] + fn notes_is_warning_unless_strict() { + let b = base(); + let mut c = b.clone(); + c.notes = Some("hello".into()); + assert_eq!(diff_states(&b, &c, false)[0].severity, Severity::Warning); + assert_eq!(diff_states(&b, &c, true)[0].severity, Severity::Breaking); + } + + #[test] + fn branch_is_warning_unless_strict() { + let b = base(); + let mut c = b.clone(); + c.base.branch = "feat/foo".into(); + assert_eq!( + diff_states(&b, &c, false) + .iter() + .find(|d| d.path == "base.branch") + .unwrap() + .severity, + Severity::Warning + ); + assert_eq!( + diff_states(&b, &c, true) + .iter() + .find(|d| d.path == "base.branch") + .unwrap() + .severity, + Severity::Breaking + ); + } +} diff --git a/src/engine.rs b/src/engine.rs new file mode 100644 index 0000000..10e0330 --- /dev/null +++ b/src/engine.rs @@ -0,0 +1,239 @@ +use base64::{engine::general_purpose::STANDARD as B64, Engine as _}; +use ed25519_dalek::{Signature, Signer, SigningKey, Verifier, VerifyingKey}; +use rand::rngs::OsRng; +use sha2::{Digest, Sha256}; + +use crate::error::TaprootError; +use crate::state::{SignedState, TaprootState}; + +pub struct StateEngine; + +impl StateEngine { + /// Canonical JSON — sorted keys, no whitespace tricks. + /// Uses serde_json with BTreeMap already sorted, then re-serializes deterministically. + pub fn to_canonical_json(state: &TaprootState) -> Result, TaprootError> { + // serde_json sorts struct keys by definition order; BTreeMap sorts env_vars. + // For true canonical, we serialize via Value then to_string with sorted keys. + let json = serde_json::to_string(state)?; + // Parse and re-stringify to ensure deterministic key ordering at all levels. + // serde_json's Value uses BTreeMap internally when `preserve_order` is off (default). + let value: serde_json::Value = serde_json::from_str(&json)?; + Ok(serde_json::to_vec(&value)?) + } + + pub fn serialize(state: &TaprootState) -> Result, TaprootError> { + Ok(serde_json::to_vec_pretty(state)?) + } + + pub fn deserialize(bytes: &[u8]) -> Result { + Ok(serde_json::from_slice(bytes)?) + } + + /// sha256 hex of canonical JSON + pub fn hash(state: &TaprootState) -> Result { + let canonical = Self::to_canonical_json(state)?; + let mut hasher = Sha256::new(); + hasher.update(&canonical); + Ok(hex::encode(hasher.finalize())) + } + + /// Generate a fresh ed25519 keypair. Returns (private_key_b64, public_key_b64) + pub fn generate_keypair() -> (String, String) { + let signing_key = SigningKey::generate(&mut OsRng); + let verifying_key = signing_key.verifying_key(); + ( + B64.encode(signing_key.to_bytes()), + B64.encode(verifying_key.to_bytes()), + ) + } + + /// Sign state. Returns SignedState with hash + signature. + pub fn sign(state: &TaprootState, private_key_b64: &str) -> Result { + let hash_hex = Self::hash(state)?; + let hash_bytes = hex::decode(&hash_hex) + .map_err(|e| TaprootError::InvalidKey(format!("hash not hex: {e}")))?; + + let key_bytes = B64 + .decode(private_key_b64.trim()) + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + let key_arr: [u8; 32] = key_bytes + .try_into() + .map_err(|_| TaprootError::InvalidKey("private key must be 32 bytes".into()))?; + let signing_key = SigningKey::from_bytes(&key_arr); + let signature: Signature = signing_key.sign(&hash_bytes); + + let public_key_b64 = B64.encode(signing_key.verifying_key().to_bytes()); + + Ok(SignedState { + state: state.clone(), + hash: hash_hex, + signature: Some(B64.encode(signature.to_bytes())), + public_key: Some(public_key_b64), + }) + } + + /// Verify SignedState. Checks hash matches state and signature is valid. + pub fn verify(signed: &SignedState) -> Result<(), TaprootError> { + let computed = Self::hash(&signed.state)?; + if computed != signed.hash { + return Err(TaprootError::HashMismatch { + expected: signed.hash.clone(), + got: computed, + }); + } + + match (&signed.signature, &signed.public_key) { + (Some(sig_b64), Some(pub_b64)) => { + let sig_bytes = B64 + .decode(sig_b64) + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + let pub_bytes = B64 + .decode(pub_b64) + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + + let sig_arr: [u8; 64] = sig_bytes + .try_into() + .map_err(|_| TaprootError::InvalidKey("signature must be 64 bytes".into()))?; + let pub_arr: [u8; 32] = pub_bytes + .try_into() + .map_err(|_| TaprootError::InvalidKey("public key must be 32 bytes".into()))?; + + let verifying_key = VerifyingKey::from_bytes(&pub_arr) + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + let signature = Signature::from_bytes(&sig_arr); + + let hash_bytes = hex::decode(&signed.hash) + .map_err(|e| TaprootError::InvalidKey(format!("hash not hex: {e}")))?; + verifying_key + .verify(&hash_bytes, &signature) + .map_err(|_| TaprootError::InvalidSignature) + } + (None, None) => Ok(()), // unsigned is okay, hash already checked + _ => Err(TaprootError::InvalidKey( + "signature and public_key must both be present or both absent".into(), + )), + } + } + + /// Save signed state to file (pretty JSON) — atomic via tempfile in same dir + pub fn save(path: &std::path::Path, signed: &SignedState) -> Result<(), TaprootError> { + use std::io::Write; + let bytes = serde_json::to_vec_pretty(signed)?; + let parent = path + .parent() + .filter(|p| !p.as_os_str().is_empty()) + .unwrap_or_else(|| std::path::Path::new(".")); + if !parent.as_os_str().is_empty() && parent != std::path::Path::new(".") { + std::fs::create_dir_all(parent)?; + } + // Use tempfile with random suffix to avoid symlink races and collisions + let mut tmp = tempfile::NamedTempFile::new_in(parent)?; + tmp.write_all(&bytes)?; + tmp.flush()?; + tmp.as_file().sync_all()?; + tmp.persist(path).map_err(|e| TaprootError::Io(e.error))?; + // fsync parent dir for durability + if let Ok(dir) = std::fs::File::open(parent) { + let _ = dir.sync_all(); + } + Ok(()) + } + + /// Load signed state from file and verify + pub fn load(path: &std::path::Path) -> Result { + let bytes = std::fs::read(path)?; + let signed: SignedState = serde_json::from_slice(&bytes)?; + Self::verify(&signed)?; + Ok(signed) + } +} + +#[cfg(test)] +mod tests { + use super::*; + + fn sample_state() -> TaprootState { + TaprootState::new("myapp", "main", "9f3a2c1") + .with_runtime("python", "3.11.4") + .with_runtime("node", "20.5.0") + .with_container("postgres", "15.3", "postgres:15.3") + .with_env("DATABASE_URL", "postgres://localhost/taproot") + .with_env("NODE_ENV", "development") + } + + #[test] + fn roundtrip_json() { + let state = sample_state(); + let bytes = StateEngine::serialize(&state).unwrap(); + let decoded = StateEngine::deserialize(&bytes).unwrap(); + assert_eq!(state.base, decoded.base); + assert_eq!(state.runtimes, decoded.runtimes); + } + + #[test] + fn hash_is_deterministic() { + let state = sample_state(); + let h1 = StateEngine::hash(&state).unwrap(); + let h2 = StateEngine::hash(&state).unwrap(); + assert_eq!(h1, h2); + assert_eq!(h1.len(), 64); // hex sha256 + } + + #[test] + fn hash_changes_on_mutation() { + let s1 = sample_state(); + let mut s2 = s1.clone(); + s2.env_vars.insert("NEW".into(), "1".into()); + assert_ne!( + StateEngine::hash(&s1).unwrap(), + StateEngine::hash(&s2).unwrap() + ); + } + + #[test] + fn sign_and_verify() { + let state = sample_state(); + let (priv_b64, _) = StateEngine::generate_keypair(); + let signed = StateEngine::sign(&state, &priv_b64).unwrap(); + assert!(StateEngine::verify(&signed).is_ok()); + } + + #[test] + fn verify_fails_on_tamper() { + let state = sample_state(); + let (priv_b64, _) = StateEngine::generate_keypair(); + let mut signed = StateEngine::sign(&state, &priv_b64).unwrap(); + signed.state.env_vars.insert("EVIL".into(), "1".into()); + assert!(StateEngine::verify(&signed).is_err()); + } + + #[test] + fn verify_fails_on_wrong_key() { + let state = sample_state(); + let (priv_b64, _) = StateEngine::generate_keypair(); + let (other_priv, _) = StateEngine::generate_keypair(); + let mut signed = StateEngine::sign(&state, &priv_b64).unwrap(); + // re-sign hash with wrong key but keep hash + let other_signed = StateEngine::sign(&state, &other_priv).unwrap(); + signed.signature = other_signed.signature; + signed.public_key = other_signed.public_key; + // Now tamper one more way: sign with other key but verify should use that key — it will pass. + // So instead test: keep original signature, swap pubkey + let mut tampered = StateEngine::sign(&state, &priv_b64).unwrap(); + let (_, other_pub) = StateEngine::generate_keypair(); + tampered.public_key = Some(other_pub); + assert!(StateEngine::verify(&tampered).is_err()); + } + + #[test] + fn save_and_load_roundtrip() { + let state = sample_state(); + let (priv_b64, _) = StateEngine::generate_keypair(); + let signed = StateEngine::sign(&state, &priv_b64).unwrap(); + let dir = tempfile::tempdir().unwrap(); + let path = dir.path().join("state.json"); + StateEngine::save(&path, &signed).unwrap(); + let loaded = StateEngine::load(&path).unwrap(); + assert_eq!(signed.hash, loaded.hash); + } +} diff --git a/src/error.rs b/src/error.rs new file mode 100644 index 0000000..42afb9a --- /dev/null +++ b/src/error.rs @@ -0,0 +1,37 @@ +use thiserror::Error; + +#[derive(Debug, Error)] +pub enum TaprootError { + #[error("serialization failed: {0}")] + Serialization(#[from] serde_json::Error), + + #[error("invalid hash: expected {expected}, got {got}")] + HashMismatch { expected: String, got: String }, + + #[error("signature verification failed")] + InvalidSignature, + + #[error("invalid key: {0}")] + InvalidKey(String), + + #[error("io error: {0}")] + Io(#[from] std::io::Error), + + #[error("mount failed: {0}")] + Mount(String), + + #[error("baseline not found: {0}")] + BaselineMissing(String), + + #[error("drift detected: {breaking} breaking, {warning} warning")] + Drift { breaking: usize, warning: usize }, + + #[error("invalid hash: {0}")] + InvalidHash(String), + + #[error("object not found: {0}")] + ObjectNotFound(String), + + #[error("ref not found: {repo}/{branch}")] + RefNotFound { repo: String, branch: String }, +} diff --git a/src/fabric.rs b/src/fabric.rs new file mode 100644 index 0000000..ffaa555 --- /dev/null +++ b/src/fabric.rs @@ -0,0 +1,239 @@ +use std::collections::BTreeMap; +use std::fs; +use std::path::{Path, PathBuf}; + +use chrono::{DateTime, Utc}; +use serde::{Deserialize, Serialize}; + +use crate::error::TaprootError; +use crate::util::atomic_write; + +/// Audit log entry — append-only JSONL at `.taproot/registry/audit.log` +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct AuditEntry { + pub ts: DateTime, + pub action: String, // "push", "pull", "verify" + pub repo: String, + pub branch: String, + pub hash: String, + pub actor: String, // token id or "local" + pub signed: bool, +} + +/// Policy for a repo: strict checks, required signing, etc. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct Policy { + pub repo: String, + #[serde(default = "default_true")] + pub require_signed: bool, + #[serde(default = "default_true")] + pub require_check_strict: bool, + #[serde(default)] + pub allowed_branches: Vec, // empty = all + #[serde(default)] + pub blocked_env_keys: Vec, +} + +fn default_true() -> bool { + true +} + +impl Default for Policy { + fn default() -> Self { + Self { + repo: "*".into(), + require_signed: true, + require_check_strict: true, + allowed_branches: Vec::new(), + blocked_env_keys: Vec::new(), + } + } +} + +/// Fabric handles org-scoped registry with audit, policy, and tokens. +pub struct Fabric { + root: PathBuf, // .taproot/fabric + registry_root: PathBuf, +} + +impl Fabric { + pub fn new(fabric_root: &Path, registry_root: &Path) -> Self { + Self { + root: fabric_root.to_path_buf(), + registry_root: registry_root.to_path_buf(), + } + } + + pub fn init(fabric_root: &Path, registry_root: &Path) -> Result { + fs::create_dir_all(fabric_root)?; + fs::create_dir_all(registry_root)?; + let f = Self::new(fabric_root, registry_root); + // ensure default files + let audit = f.audit_path(); + if !audit.exists() { + fs::write(&audit, b"")?; + } + let tokens = f.tokens_path(); + if !tokens.exists() { + fs::write(&tokens, b"{}")?; + } + Ok(f) + } + + fn audit_path(&self) -> PathBuf { + // audit lives alongside registry for simplicity + self.registry_root.join("audit.log") + } + + fn tokens_path(&self) -> PathBuf { + self.root.join("tokens.json") + } + + fn policy_path(&self, repo: &str) -> PathBuf { + let sanitized = crate::registry::sanitize(repo); + self.root.join(format!("policy-{sanitized}.json")) + } + + /// Append audit entry (atomic append). + pub fn audit(&self, entry: AuditEntry) -> Result<(), TaprootError> { + let path = self.audit_path(); + let mut file = fs::OpenOptions::new() + .create(true) + .append(true) + .open(&path)?; + use std::io::Write; + let line = serde_json::to_string(&entry)?; + writeln!(file, "{line}")?; + file.sync_all()?; + tracing::info!(action=%entry.action, repo=%entry.repo, hash=%entry.hash, "audit"); + Ok(()) + } + + /// Read audit log, optionally filtered by repo. + pub fn audit_log(&self, filter_repo: Option<&str>) -> Result, TaprootError> { + let path = self.audit_path(); + if !path.exists() { + return Ok(Vec::new()); + } + let content = fs::read_to_string(&path)?; + let mut out = Vec::new(); + for line in content.lines() { + if line.trim().is_empty() { + continue; + } + let entry: AuditEntry = serde_json::from_str(line)?; + if let Some(r) = filter_repo { + if entry.repo != r { + continue; + } + } + out.push(entry); + } + Ok(out) + } + + /// Token management — simple map token -> actor + pub fn tokens(&self) -> Result, TaprootError> { + let path = self.tokens_path(); + if !path.exists() { + return Ok(BTreeMap::new()); + } + let bytes = fs::read(&path)?; + if bytes.is_empty() { + return Ok(BTreeMap::new()); + } + Ok(serde_json::from_slice(&bytes)?) + } + + pub fn add_token(&self, token: &str, actor: &str) -> Result<(), TaprootError> { + if token.trim().is_empty() || token.contains('\n') || token.len() < 8 { + return Err(TaprootError::InvalidKey("invalid token".into())); + } + let mut map = self.tokens()?; + map.insert(token.to_string(), actor.to_string()); + let bytes = serde_json::to_vec_pretty(&map)?; + atomic_write(&self.tokens_path(), &bytes)?; + Ok(()) + } + + pub fn verify_token(&self, token: &str) -> Result, TaprootError> { + let map = self.tokens()?; + Ok(map.get(token).cloned()) + } + + /// Policy read/write + pub fn get_policy(&self, repo: &str) -> Result { + let path = self.policy_path(repo); + if !path.exists() { + return Ok(Policy { + repo: repo.to_string(), + ..Default::default() + }); + } + let bytes = fs::read(&path)?; + Ok(serde_json::from_slice(&bytes)?) + } + + pub fn set_policy(&self, policy: &Policy) -> Result<(), TaprootError> { + let path = self.policy_path(&policy.repo); + let bytes = serde_json::to_vec_pretty(policy)?; + atomic_write(&path, &bytes)?; + Ok(()) + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn audit_roundtrip() { + let dir = tempfile::tempdir().unwrap(); + let fab = Fabric::init(&dir.path().join("fabric"), &dir.path().join("registry")).unwrap(); + let e = AuditEntry { + ts: Utc::now(), + action: "push".into(), + repo: "myapp".into(), + branch: "main".into(), + hash: "a".repeat(64), + actor: "tester".into(), + signed: true, + }; + fab.audit(e.clone()).unwrap(); + let log = fab.audit_log(Some("myapp")).unwrap(); + assert_eq!(log.len(), 1); + assert_eq!(log[0].hash, e.hash); + assert!(fab.audit_log(Some("other")).unwrap().is_empty()); + } + + #[test] + fn tokens_roundtrip() { + let dir = tempfile::tempdir().unwrap(); + let fab = Fabric::init(&dir.path().join("fabric"), &dir.path().join("registry")).unwrap(); + fab.add_token("secret-token-123", "alice").unwrap(); + assert_eq!( + fab.verify_token("secret-token-123").unwrap(), + Some("alice".into()) + ); + assert_eq!(fab.verify_token("bad").unwrap(), None); + } + + #[test] + fn policy_roundtrip() { + let dir = tempfile::tempdir().unwrap(); + let fab = Fabric::init(&dir.path().join("fabric"), &dir.path().join("registry")).unwrap(); + let p = Policy { + repo: "myapp".into(), + require_signed: true, + require_check_strict: false, + allowed_branches: vec!["main".into()], + blocked_env_keys: vec!["SECRET".into()], + }; + fab.set_policy(&p).unwrap(); + let loaded = fab.get_policy("myapp").unwrap(); + assert_eq!(loaded.require_check_strict, false); + assert_eq!(loaded.allowed_branches, vec!["main"]); + let def = fab.get_policy("other").unwrap(); + assert!(def.require_signed); + } +} diff --git a/src/keys.rs b/src/keys.rs new file mode 100644 index 0000000..8db71e5 --- /dev/null +++ b/src/keys.rs @@ -0,0 +1,251 @@ +use std::collections::BTreeMap; +use std::fs; +use std::path::{Path, PathBuf}; + +use base64::{engine::general_purpose::STANDARD as B64, Engine as _}; +use serde::{Deserialize, Serialize}; + +use crate::error::TaprootError; +use crate::util::atomic_write; + +/// A stored keypair — private stays local, public is shared. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct Keypair { + pub id: String, + /// base64 32 bytes + pub private_key: String, + /// base64 32 bytes + pub public_key: String, + pub created_at: chrono::DateTime, + #[serde(default)] + pub active: bool, +} + +/// Keystore on disk: `.taproot/keys/` with `keys.json` index + per-key files. +pub struct KeyStore { + root: PathBuf, +} + +impl KeyStore { + pub fn new(root: &Path) -> Self { + Self { + root: root.to_path_buf(), + } + } + + pub fn init(root: &Path) -> Result { + fs::create_dir_all(root)?; + let ks = Self::new(root); + // ensure index exists + let idx = ks.index_path(); + if !idx.exists() { + fs::write(&idx, b"[]")?; + } + Ok(ks) + } + + fn index_path(&self) -> PathBuf { + self.root.join("keys.json") + } + + fn key_path(&self, id: &str) -> PathBuf { + self.root.join(format!("{id}.key")) + } + + /// Generate a fresh keypair, persist, return it. + pub fn generate(&self, id: Option) -> Result { + let (priv_b64, pub_b64) = crate::engine::StateEngine::generate_keypair(); + let id = id.unwrap_or_else(|| { + let pub_bytes = B64.decode(&pub_b64).unwrap_or_default(); + let hex_prefix = hex::encode(&pub_bytes[..4.min(pub_bytes.len())]); + format!("key-{hex_prefix}") + }); + // validate id + if id.contains('/') || id.contains('\\') || id.contains('\0') || id.trim().is_empty() { + return Err(TaprootError::InvalidKey("invalid key id".into())); + } + if self.key_path(&id).exists() { + return Err(TaprootError::InvalidKey(format!( + "key id already exists: {id}" + ))); + } + // verify base64 decodes to 32 bytes + let priv_bytes = B64 + .decode(&priv_b64) + .map_err(|e| TaprootError::InvalidKey(e.to_string()))?; + if priv_bytes.len() != 32 { + return Err(TaprootError::InvalidKey( + "private key must be 32 bytes".into(), + )); + } + + let kp = Keypair { + id: id.clone(), + private_key: priv_b64, + public_key: pub_b64, + created_at: chrono::Utc::now(), + active: true, + }; + + // write key file (private) with 0600 + let key_json = serde_json::to_string_pretty(&kp)?; + let path = self.key_path(&id); + atomic_write(&path, key_json.as_bytes())?; + #[cfg(unix)] + { + use std::os::unix::fs::PermissionsExt; + let _ = fs::set_permissions(&path, fs::Permissions::from_mode(0o600)); + } + + // update index + self.add_to_index(&kp)?; + tracing::info!(id=%kp.id, "key generated"); + Ok(kp) + } + + fn load_index(&self) -> Result, TaprootError> { + let idx = self.index_path(); + if !idx.exists() { + return Ok(Vec::new()); + } + let bytes = fs::read(&idx)?; + if bytes.is_empty() { + return Ok(Vec::new()); + } + Ok(serde_json::from_slice(&bytes)?) + } + + fn save_index(&self, keys: &[Keypair]) -> Result<(), TaprootError> { + let bytes = serde_json::to_vec_pretty(keys)?; + atomic_write(&self.index_path(), &bytes)?; + Ok(()) + } + + fn add_to_index(&self, kp: &Keypair) -> Result<(), TaprootError> { + let mut keys = self.load_index()?; + // deactivate previous active keys if this one is active? keep all active for rotation + keys.push(kp.clone()); + self.save_index(&keys)?; + Ok(()) + } + + pub fn list(&self) -> Result, TaprootError> { + self.load_index() + } + + pub fn get(&self, id: &str) -> Result { + let path = self.key_path(id); + if !path.exists() { + return Err(TaprootError::InvalidKey(format!("key not found: {id}"))); + } + let bytes = fs::read(&path)?; + Ok(serde_json::from_slice(&bytes)?) + } + + /// Get the most recent active key, or any key if none active. + pub fn default_key(&self) -> Result { + let keys = self.load_index()?; + if keys.is_empty() { + return Err(TaprootError::InvalidKey( + "no keys found — run `taproot keys generate`".into(), + )); + } + // prefer active, most recent + if let Some(kp) = keys.iter().rev().find(|k| k.active) { + return Ok(kp.clone()); + } + Ok(keys.last().unwrap().clone()) + } + + /// Load private key b64 by id or default. + pub fn private_key(&self, id: Option<&str>) -> Result { + let kp = match id { + Some(i) => self.get(i)?, + None => self.default_key()?, + }; + Ok(kp.private_key) + } + + /// Export public keys map id -> pubkey b64 + pub fn public_keys(&self) -> Result, TaprootError> { + let keys = self.load_index()?; + Ok(keys.into_iter().map(|k| (k.id, k.public_key)).collect()) + } + + /// Rotate: generate new active key, mark old ones inactive if requested. + pub fn rotate(&self, deactivate_old: bool) -> Result { + let kp = self.generate(None)?; + if deactivate_old { + let mut keys = self.load_index()?; + for k in &mut keys { + if k.id != kp.id { + k.active = false; + } + } + // rewrite key files to reflect inactive + for k in &keys { + if k.id != kp.id { + let path = self.key_path(&k.id); + if path.exists() { + let json = serde_json::to_string_pretty(k)?; + atomic_write(&path, json.as_bytes())?; + } + } + } + self.save_index(&keys)?; + } + Ok(kp) + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn generate_and_load() { + let dir = tempfile::tempdir().unwrap(); + let ks = KeyStore::init(&dir.path().join("keys")).unwrap(); + let kp = ks.generate(Some("test-key".into())).unwrap(); + assert_eq!(kp.id, "test-key"); + assert_eq!(kp.private_key.len(), 44); // base64 32 bytes + let loaded = ks.get("test-key").unwrap(); + assert_eq!(loaded.public_key, kp.public_key); + let def = ks.default_key().unwrap(); + assert_eq!(def.id, "test-key"); + } + + #[test] + fn list_and_default() { + let dir = tempfile::tempdir().unwrap(); + let ks = KeyStore::init(&dir.path().join("keys")).unwrap(); + ks.generate(Some("k1".into())).unwrap(); + ks.generate(Some("k2".into())).unwrap(); + let list = ks.list().unwrap(); + assert_eq!(list.len(), 2); + let def = ks.default_key().unwrap(); + assert_eq!(def.id, "k2"); + } + + #[test] + fn rotate_deactivates_old() { + let dir = tempfile::tempdir().unwrap(); + let ks = KeyStore::init(&dir.path().join("keys")).unwrap(); + ks.generate(Some("old".into())).unwrap(); + let new = ks.rotate(true).unwrap(); + assert!(new.active); + let old = ks.get("old").unwrap(); + assert!(!old.active); + } + + #[test] + fn private_key_lookup() { + let dir = tempfile::tempdir().unwrap(); + let ks = KeyStore::init(&dir.path().join("keys")).unwrap(); + ks.generate(Some("mykey".into())).unwrap(); + let pk = ks.private_key(Some("mykey")).unwrap(); + assert!(!pk.is_empty()); + let def_pk = ks.private_key(None).unwrap(); + assert_eq!(pk, def_pk); + } +} diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..4262d68 --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,15 @@ +pub mod cli; +pub mod diff; +pub mod engine; +pub mod error; +pub mod fabric; +pub mod keys; +pub mod mount; +pub mod registry; +pub mod server; +pub mod state; +pub(crate) mod util; + +pub use engine::StateEngine; +pub use error::TaprootError; +pub use state::{BaseRef, Container, Runtime, SignedState, TaprootState}; diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..310d532 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,34 @@ +use clap::Parser; +use taproot::cli::{ + handle_check, handle_fabric, handle_init, handle_keys, handle_mount, handle_registry, + handle_remote, handle_serve, handle_status, handle_verify, Cli, Commands, +}; + +fn main() { + tracing_subscriber::fmt() + .with_env_filter( + tracing_subscriber::EnvFilter::try_from_default_env() + .unwrap_or_else(|_| tracing_subscriber::EnvFilter::new("warn")), + ) + .init(); + + let cli = Cli::parse(); + + let result = match cli.command { + Commands::Init(args) => handle_init(args), + Commands::Mount(args) => handle_mount(args), + Commands::Status(args) => handle_status(args), + Commands::Verify(args) => handle_verify(args), + Commands::Check(args) => handle_check(args), + Commands::Registry(args) => handle_registry(args), + Commands::Keys(args) => handle_keys(args), + Commands::Fabric(args) => handle_fabric(args), + Commands::Serve(args) => handle_serve(args), + Commands::Remote(args) => handle_remote(args), + }; + + if let Err(e) = result { + eprintln!("error: {e}"); + std::process::exit(1); + } +} diff --git a/src/mount.rs b/src/mount.rs new file mode 100644 index 0000000..0989842 --- /dev/null +++ b/src/mount.rs @@ -0,0 +1,618 @@ +use std::collections::HashMap; +use std::ffi::OsStr; +use std::path::Path; +use std::time::{Duration, SystemTime}; + +use fuser::{ + FileAttr, FileType, Filesystem, KernelConfig, ReplyAttr, ReplyCreate, ReplyData, + ReplyDirectory, ReplyEmpty, ReplyEntry, ReplyOpen, ReplyWrite, Request, TimeOrNow, +}; +use libc::{c_int, EROFS}; + +use crate::error::TaprootError; +use crate::state::SignedState; + +// --------------------------------------------------------------------------- +// Inode table +// --------------------------------------------------------------------------- + +const TTL: Duration = Duration::from_secs(1); +const ROOT_INO: u64 = 1; + +#[derive(Debug, Clone)] +struct Inode { + ino: u64, + parent: u64, + name: String, + kind: FileType, + data: Vec, + children: Vec, +} + +fn now() -> SystemTime { + SystemTime::now() +} + +fn file_attr(ino: u64, size: u64, kind: FileType) -> FileAttr { + let t = now(); + FileAttr { + ino, + size, + blocks: size + .div_ceil(512) + .max(if kind == FileType::Directory { 1 } else { 0 }), + atime: t, + mtime: t, + ctime: t, + crtime: t, + kind, + perm: if kind == FileType::Directory { + 0o555 + } else { + 0o444 + }, + nlink: if kind == FileType::Directory { 2 } else { 1 }, + uid: unsafe { libc::getuid() } as u32, + gid: unsafe { libc::getgid() } as u32, + rdev: 0, + blksize: 4096, + flags: 0, + } +} + +fn is_safe_filename(name: &str) -> bool { + if name.is_empty() || name.len() > 64 { + return false; + } + if name == "." || name == ".." { + return false; + } + if name.contains('/') || name.contains('\0') || name.contains('\\') { + return false; + } + name.chars() + .all(|c| c.is_ascii_alphanumeric() || c == '-' || c == '_' || c == '.') +} + +// --------------------------------------------------------------------------- +// TaprootFS +// --------------------------------------------------------------------------- + +pub struct TaprootFS { + inodes: HashMap, + /// (parent_ino, name) -> ino + lookup: HashMap<(u64, String), u64>, + next_ino: u64, +} + +impl TaprootFS { + pub fn new(signed: &SignedState) -> Self { + let mut fs = Self { + inodes: HashMap::new(), + lookup: HashMap::new(), + next_ino: ROOT_INO + 1, + }; + + fs.inodes.insert( + ROOT_INO, + Inode { + ino: ROOT_INO, + parent: ROOT_INO, + name: String::new(), + kind: FileType::Directory, + data: Vec::new(), + children: Vec::new(), + }, + ); + + let readme = Self::readme_content(signed); + let state_json = serde_json::to_string_pretty(signed).unwrap_or_else(|_| "{}".into()); + let env_content = Self::env_content(signed); + + fs.add_file(ROOT_INO, "README.taproot", readme.into_bytes()); + fs.add_file(ROOT_INO, "state.json", state_json.into_bytes()); + fs.add_file(ROOT_INO, "env", env_content.into_bytes()); + fs.add_file(ROOT_INO, "hash", signed.hash.clone().into_bytes()); + fs.add_file( + ROOT_INO, + "version", + signed.state.version.clone().into_bytes(), + ); + + let runtimes_ino = fs.add_dir(ROOT_INO, "runtimes"); + for r in &signed.state.runtimes { + if !is_safe_filename(&r.name) { + continue; + } + let content = format!( + "name: {}\nversion: {}\npinned: {}\n", + r.name, r.version, r.pinned + ); + let fname = format!("{}.txt", r.name); + if fs.lookup.contains_key(&(runtimes_ino, fname.clone())) { + continue; + } + fs.add_file(runtimes_ino, &fname, content.into_bytes()); + } + + let containers_ino = fs.add_dir(ROOT_INO, "containers"); + for c in &signed.state.containers { + if !is_safe_filename(&c.name) { + continue; + } + let content = format!( + "name: {}\nversion: {}\nimage: {}\nsigned: {}\n", + c.name, c.version, c.image, c.signed + ); + let fname = format!("{}.txt", c.name); + if fs.lookup.contains_key(&(containers_ino, fname.clone())) { + continue; + } + fs.add_file(containers_ino, &fname, content.into_bytes()); + } + + fs + } + + fn readme_content(signed: &SignedState) -> String { + let s = &signed.state; + let sig = if signed.signature.is_some() { + "signed" + } else { + "unsigned" + }; + format!( + "taproot read-only mount\n\ + =======================\n\ + repo: {} branch: {} commit: {}\n\ + state: {sig} sha256:{}\n\ + runtimes: {} containers: {} env-vars: {}\n\ + \n\ + This filesystem is read-only. All writes return EROFS.\n\ + Files:\n\ + state.json — pretty-printed SignedState\n\ + env — key=value list\n\ + hash — sha256 hex\n\ + version — schema version\n\ + runtimes/ — per-runtime virtual files\n\ + containers/ — per-container virtual files\n", + s.base.repo, + s.base.branch, + s.base.commit, + signed.hash, + s.runtimes.len(), + s.containers.len(), + s.env_vars.len(), + ) + } + + fn env_content(signed: &SignedState) -> String { + if signed.state.env_vars.is_empty() { + return String::new(); + } + let mut out = String::new(); + for (k, v) in &signed.state.env_vars { + out.push_str(k); + out.push('='); + out.push_str(v); + out.push('\n'); + } + out + } + + fn add_file(&mut self, parent: u64, name: &str, data: Vec) -> u64 { + let ino = self.next_ino; + self.next_ino += 1; + let inode = Inode { + ino, + parent, + name: name.to_string(), + kind: FileType::RegularFile, + data, + children: Vec::new(), + }; + self.inodes.insert(ino, inode); + self.lookup.insert((parent, name.to_string()), ino); + if let Some(p) = self.inodes.get_mut(&parent) { + p.children.push(ino); + } + ino + } + + fn add_dir(&mut self, parent: u64, name: &str) -> u64 { + let ino = self.next_ino; + self.next_ino += 1; + let inode = Inode { + ino, + parent, + name: name.to_string(), + kind: FileType::Directory, + data: Vec::new(), + children: Vec::new(), + }; + self.inodes.insert(ino, inode); + self.lookup.insert((parent, name.to_string()), ino); + if let Some(p) = self.inodes.get_mut(&parent) { + p.children.push(ino); + } + ino + } + + #[cfg(test)] + pub fn inode_count(&self) -> usize { + self.inodes.len() + } + + #[cfg(test)] + #[allow(private_interfaces)] + pub fn get_inode(&self, ino: u64) -> Option<&Inode> { + self.inodes.get(&ino) + } + + #[cfg(test)] + pub fn lookup_ino(&self, parent: u64, name: &str) -> Option { + self.lookup.get(&(parent, name.to_string())).copied() + } + + fn getattr_for(&self, ino: u64) -> Option { + let inode = self.inodes.get(&ino)?; + let size = if inode.kind == FileType::Directory { + 0 + } else { + inode.data.len() as u64 + }; + Some(file_attr(ino, size, inode.kind)) + } +} + +// --------------------------------------------------------------------------- +// Filesystem impl — read-only +// --------------------------------------------------------------------------- + +impl Filesystem for TaprootFS { + fn init(&mut self, _req: &Request<'_>, _config: &mut KernelConfig) -> Result<(), c_int> { + Ok(()) + } + + fn lookup(&mut self, _req: &Request<'_>, parent: u64, name: &OsStr, reply: ReplyEntry) { + let name_str = name.to_string_lossy().to_string(); + if let Some(&ino) = self.lookup.get(&(parent, name_str)) { + if let Some(attr) = self.getattr_for(ino) { + reply.entry(&TTL, &attr, 0); + return; + } + } + reply.error(libc::ENOENT); + } + + fn getattr(&mut self, _req: &Request<'_>, ino: u64, reply: ReplyAttr) { + if let Some(attr) = self.getattr_for(ino) { + reply.attr(&TTL, &attr); + } else { + reply.error(libc::ENOENT); + } + } + + fn open(&mut self, _req: &Request<'_>, ino: u64, flags: i32, reply: ReplyOpen) { + if (flags & libc::O_TRUNC) != 0 || (flags & libc::O_CREAT) != 0 { + reply.error(EROFS); + return; + } + let accmode = flags & libc::O_ACCMODE; + if accmode == libc::O_WRONLY || accmode == libc::O_RDWR { + reply.error(EROFS); + return; + } + if self.inodes.contains_key(&ino) { + reply.opened(0, 0); + } else { + reply.error(libc::ENOENT); + } + } + + fn read( + &mut self, + _req: &Request<'_>, + ino: u64, + _fh: u64, + offset: i64, + size: u32, + _flags: i32, + _lock_owner: Option, + reply: ReplyData, + ) { + let Some(inode) = self.inodes.get(&ino) else { + reply.error(libc::ENOENT); + return; + }; + if inode.kind == FileType::Directory { + reply.error(libc::EISDIR); + return; + } + if offset < 0 { + reply.error(libc::EINVAL); + return; + } + let data = &inode.data; + let off = offset as usize; + if off >= data.len() { + reply.data(&[]); + return; + } + let end = (off + size as usize).min(data.len()); + reply.data(&data[off..end]); + } + + fn readdir( + &mut self, + _req: &Request<'_>, + ino: u64, + _fh: u64, + offset: i64, + mut reply: ReplyDirectory, + ) { + if offset < 0 { + reply.error(libc::EINVAL); + return; + } + let Some(inode) = self.inodes.get(&ino).cloned() else { + reply.error(libc::ENOENT); + return; + }; + if inode.kind != FileType::Directory { + reply.error(libc::ENOTDIR); + return; + } + + let mut entries: Vec<(u64, FileType, String)> = Vec::new(); + entries.push((ino, FileType::Directory, ".".to_string())); + entries.push(( + if ino == ROOT_INO { + ROOT_INO + } else { + inode.parent + }, + FileType::Directory, + "..".to_string(), + )); + for &child_ino in &inode.children { + if let Some(child) = self.inodes.get(&child_ino) { + entries.push((child.ino, child.kind, child.name.clone())); + } + } + + for (i, (child_ino, kind, name)) in entries.into_iter().enumerate() { + let idx = (i + 1) as i64; + if idx <= offset { + continue; + } + if reply.add(child_ino, idx, kind, name) { + break; + } + } + reply.ok(); + } + + fn release( + &mut self, + _req: &Request<'_>, + _ino: u64, + _fh: u64, + _flags: i32, + _lock_owner: Option, + _flush: bool, + reply: ReplyEmpty, + ) { + reply.ok(); + } + + // --- read-only denials --- + fn write( + &mut self, + _req: &Request<'_>, + _ino: u64, + _fh: u64, + _offset: i64, + _data: &[u8], + _write_flags: u32, + _flags: i32, + _lock_owner: Option, + reply: ReplyWrite, + ) { + reply.error(EROFS); + } + + fn create( + &mut self, + _req: &Request<'_>, + _parent: u64, + _name: &OsStr, + _mode: u32, + _umask: u32, + _flags: i32, + reply: ReplyCreate, + ) { + reply.error(EROFS); + } + + fn mkdir( + &mut self, + _req: &Request<'_>, + _parent: u64, + _name: &OsStr, + _mode: u32, + _umask: u32, + reply: ReplyEntry, + ) { + reply.error(EROFS); + } + + fn mknod( + &mut self, + _req: &Request<'_>, + _parent: u64, + _name: &OsStr, + _mode: u32, + _umask: u32, + _rdev: u32, + reply: ReplyEntry, + ) { + reply.error(EROFS); + } + + fn unlink(&mut self, _req: &Request<'_>, _parent: u64, _name: &OsStr, reply: ReplyEmpty) { + reply.error(EROFS); + } + + fn rmdir(&mut self, _req: &Request<'_>, _parent: u64, _name: &OsStr, reply: ReplyEmpty) { + reply.error(EROFS); + } + + fn rename( + &mut self, + _req: &Request<'_>, + _parent: u64, + _name: &OsStr, + _newparent: u64, + _newname: &OsStr, + _flags: u32, + reply: ReplyEmpty, + ) { + reply.error(EROFS); + } + + fn setattr( + &mut self, + _req: &Request<'_>, + _ino: u64, + _mode: Option, + _uid: Option, + _gid: Option, + _size: Option, + _atime: Option, + _mtime: Option, + _ctime: Option, + _fh: Option, + _crtime: Option, + _chgtime: Option, + _bkuptime: Option, + _flags: Option, + reply: ReplyAttr, + ) { + reply.error(EROFS); + } +} + +// --------------------------------------------------------------------------- +// Public mount helper +// --------------------------------------------------------------------------- + +/// Mount a read-only FUSE filesystem at `mountpoint` reflecting `signed`. +/// +/// Blocks until unmounted. Mount options: RO, FSName("taproot"). +pub fn mount_readonly(mountpoint: &Path, signed: &SignedState) -> Result<(), TaprootError> { + let meta = std::fs::symlink_metadata(mountpoint).map_err(|e| { + TaprootError::Mount(format!( + "mountpoint does not exist: {}: {e}", + mountpoint.display() + )) + })?; + if meta.file_type().is_symlink() { + return Err(TaprootError::Mount(format!( + "mountpoint is a symlink (refusing): {}", + mountpoint.display() + ))); + } + if !meta.is_dir() { + return Err(TaprootError::Mount(format!( + "mountpoint is not a directory: {}", + mountpoint.display() + ))); + } + let fs = TaprootFS::new(signed); + let options = [ + fuser::MountOption::RO, + fuser::MountOption::FSName("taproot".to_string()), + fuser::MountOption::Subtype("taproot".to_string()), + ]; + fuser::mount2(fs, mountpoint, &options).map_err(|e| TaprootError::Mount(e.to_string()))?; + Ok(()) +} + +// --------------------------------------------------------------------------- +// Tests +// --------------------------------------------------------------------------- + +#[cfg(test)] +mod tests { + use super::*; + use crate::state::TaprootState; + + fn sample_signed() -> SignedState { + let state = TaprootState::new("myapp", "main", "abc123") + .with_runtime("python", "3.11.4") + .with_env("FOO", "bar") + .with_container("postgres", "15.3", "postgres:15.3"); + let hash = crate::engine::StateEngine::hash(&state).unwrap(); + SignedState { + state, + hash, + signature: None, + public_key: None, + } + } + + #[test] + fn inode_table_has_expected_files() { + let signed = sample_signed(); + let fs = TaprootFS::new(&signed); + assert!(fs.inode_count() >= 8); + assert!(fs.lookup_ino(ROOT_INO, "state.json").is_some()); + assert!(fs.lookup_ino(ROOT_INO, "README.taproot").is_some()); + assert!(fs.lookup_ino(ROOT_INO, "env").is_some()); + assert!(fs.lookup_ino(ROOT_INO, "hash").is_some()); + assert!(fs.lookup_ino(ROOT_INO, "runtimes").is_some()); + assert!(fs.lookup_ino(ROOT_INO, "containers").is_some()); + } + + #[test] + fn file_content_correct() { + let signed = sample_signed(); + let fs = TaprootFS::new(&signed); + let ino = fs.lookup_ino(ROOT_INO, "env").unwrap(); + let inode = fs.get_inode(ino).unwrap(); + let text = String::from_utf8_lossy(&inode.data); + assert!(text.contains("FOO=bar")); + + let ino2 = fs.lookup_ino(ROOT_INO, "hash").unwrap(); + let inode2 = fs.get_inode(ino2).unwrap(); + assert_eq!(String::from_utf8_lossy(&inode2.data), signed.hash); + } + + #[test] + fn per_runtime_container_files() { + let signed = sample_signed(); + let fs = TaprootFS::new(&signed); + let runtimes = fs.lookup_ino(ROOT_INO, "runtimes").unwrap(); + assert!(fs.lookup_ino(runtimes, "python.txt").is_some()); + let containers = fs.lookup_ino(ROOT_INO, "containers").unwrap(); + assert!(fs.lookup_ino(containers, "postgres.txt").is_some()); + } + + #[test] + fn getattr_root_is_dir() { + let signed = sample_signed(); + let fs = TaprootFS::new(&signed); + let attr = fs.getattr_for(ROOT_INO).unwrap(); + assert_eq!(attr.kind, FileType::Directory); + assert_eq!(attr.perm, 0o555); + } + + #[test] + fn mount_readonly_errors_on_missing_path() { + let signed = sample_signed(); + let res = mount_readonly(Path::new("/tmp/does-not-exist-taproot-test-xyz"), &signed); + assert!(res.is_err()); + assert!(matches!(res.unwrap_err(), TaprootError::Mount(_))); + } +} diff --git a/src/registry.rs b/src/registry.rs new file mode 100644 index 0000000..820a0e2 --- /dev/null +++ b/src/registry.rs @@ -0,0 +1,485 @@ +use std::fs; +use std::path::{Path, PathBuf}; + +use crate::engine::StateEngine; +use crate::error::TaprootError; +use crate::state::SignedState; +use crate::util::{atomic_write, validate_non_empty}; + +/// Local content-addressed registry for signed states. +/// +/// Layout (root is `.taproot/registry`): +/// - `objects/.json` -> SignedState pretty JSON +/// - `refs//` -> text file containing hash +/// +/// Sanitization: `/` is encoded as `%2F`, `%` as `%25`, so +/// `org/myapp` + `feat/foo` => `refs/org%2Fmyapp/feat%2Ffoo`. +/// This avoids the old `__` collision where `a/b` and `a__b` mapped to the same path. +pub struct Registry { + root: PathBuf, +} + +impl Registry { + /// Create a registry handle without touching the filesystem. + pub fn new(root: &Path) -> Self { + Self { + root: root.to_path_buf(), + } + } + + /// Initialise registry directories (`objects/` + `refs/`). + pub fn init(root: &Path) -> Result { + let r = Self::new(root); + fs::create_dir_all(r.objects_dir())?; + fs::create_dir_all(r.refs_dir())?; + tracing::info!(?root, "registry init"); + Ok(r) + } + + /// Open existing registry, ensuring base dirs exist (idempotent). + pub fn open(root: &Path) -> Result { + Self::init(root) + } + + pub fn root(&self) -> &Path { + &self.root + } + + fn objects_dir(&self) -> PathBuf { + self.root.join("objects") + } + + fn refs_dir(&self) -> PathBuf { + self.root.join("refs") + } + + fn object_path(&self, hash: &str) -> PathBuf { + self.objects_dir().join(format!("{hash}.json")) + } + + fn ref_path(&self, repo: &str, branch: &str) -> Result { + validate_non_empty("repo", repo)?; + validate_non_empty("branch", branch)?; + let repo_s = sanitize(repo); + let branch_s = sanitize(branch); + Ok(self.refs_dir().join(repo_s).join(branch_s)) + } + + /// Push a signed state: verify, persist object, update ref. + /// Returns the hash on success. + pub fn push(&self, signed: &SignedState) -> Result { + // Validate + verify before any IO. + StateEngine::verify(signed)?; + let computed = StateEngine::hash(&signed.state)?; + if computed != signed.hash { + return Err(TaprootError::HashMismatch { + expected: signed.hash.clone(), + got: computed, + }); + } + validate_non_empty("repo", &signed.state.base.repo)?; + validate_non_empty("branch", &signed.state.base.branch)?; + validate_hash(&signed.hash)?; + + // Ensure dirs exist. + fs::create_dir_all(self.objects_dir())?; + fs::create_dir_all(self.refs_dir())?; + + // Write object atomically if not already present. + let obj_path = self.object_path(&signed.hash); + if !obj_path.exists() { + let bytes = serde_json::to_vec_pretty(signed)?; + atomic_write(&obj_path, &bytes)?; + tracing::info!(hash=%signed.hash, ?obj_path, "registry object written"); + } else { + // Verify existing object matches (defensive). + let existing = self.pull(&signed.hash)?; + if existing != *signed { + tracing::warn!(hash=%signed.hash, "registry object exists with different content"); + } + } + + // Update ref atomically. + let ref_path = self.ref_path(&signed.state.base.repo, &signed.state.base.branch)?; + if let Some(parent) = ref_path.parent() { + fs::create_dir_all(parent)?; + } + atomic_write(&ref_path, signed.hash.as_bytes())?; + tracing::info!( + repo=%signed.state.base.repo, + branch=%signed.state.base.branch, + hash=%signed.hash, + "registry ref updated" + ); + + Ok(signed.hash.clone()) + } + + /// Pull an object by hash. Verifies signature and hash. + pub fn pull(&self, hash: &str) -> Result { + validate_hash(hash)?; + let path = self.object_path(hash); + if !path.exists() { + return Err(TaprootError::ObjectNotFound(hash.to_string())); + } + let bytes = fs::read(&path)?; + let signed: SignedState = serde_json::from_slice(&bytes)?; + StateEngine::verify(&signed)?; + if signed.hash != hash { + return Err(TaprootError::HashMismatch { + expected: hash.to_string(), + got: signed.hash.clone(), + }); + } + Ok(signed) + } + + /// Resolve a ref to a hash, if present. + pub fn resolve_ref(&self, repo: &str, branch: &str) -> Result, TaprootError> { + let path = self.ref_path(repo, branch)?; + if !path.exists() { + return Ok(None); + } + // Ensure it's a file, not a directory. + let meta = fs::symlink_metadata(&path)?; + if !meta.is_file() { + return Err(TaprootError::InvalidKey(format!( + "ref path is not a file: {}", + path.display() + ))); + } + let content = fs::read_to_string(&path)?; + let hash = content.trim().to_string(); + if hash.is_empty() { + return Ok(None); + } + validate_hash(&hash)?; + Ok(Some(hash)) + } + + /// List branches for a repo. Returns sorted (branch, hash) pairs. + /// Branch names are de-sanitized (`%2F` -> `/`). + pub fn list(&self, repo: &str) -> Result, TaprootError> { + validate_non_empty("repo", repo)?; + let repo_s = sanitize(repo); + let dir = self.refs_dir().join(repo_s); + if !dir.exists() { + return Ok(Vec::new()); + } + let mut out = Vec::new(); + for entry in fs::read_dir(&dir)? { + let entry = entry?; + let ft = entry.file_type()?; + if !ft.is_file() { + continue; + } + let file_name = entry.file_name().to_string_lossy().to_string(); + let branch = desanitize(&file_name); + // Validate branch round-trips. + validate_non_empty("branch", &branch)?; + let hash = fs::read_to_string(entry.path())?.trim().to_string(); + if hash.is_empty() { + continue; + } + // Skip invalid hashes rather than failing whole list. + if validate_hash(&hash).is_err() { + tracing::warn!(?hash, branch=%branch, "skipping ref with invalid hash"); + eprintln!("warn: skipping bad ref {branch} with invalid hash {hash}"); + continue; + } + out.push((branch, hash)); + } + out.sort_by(|a, b| a.0.cmp(&b.0)); + Ok(out) + } + + /// Log for a repo/branch. Currently returns the single SignedState + /// pointed to by the ref, if any (no history chain yet). + pub fn log(&self, repo: &str, branch: &str) -> Result, TaprootError> { + match self.resolve_ref(repo, branch)? { + Some(hash) => { + let signed = self.pull(&hash)?; + Ok(vec![signed]) + } + None => Ok(Vec::new()), + } + } +} + +// --------------------------------------------------------------------------- +// Helpers +// --------------------------------------------------------------------------- + +pub(crate) fn sanitize(s: &str) -> String { + // Order matters: escape % first, then / + s.replace('%', "%25").replace('/', "%2F") +} + +pub(crate) fn desanitize(s: &str) -> String { + // Reverse: %2F -> /, then %25 -> % + s.replace("%2F", "/").replace("%25", "%") +} + +fn validate_hash(hash: &str) -> Result<(), TaprootError> { + if hash.len() != 64 { + return Err(TaprootError::InvalidHash(format!( + "hash must be 64 hex chars, got {} chars", + hash.len() + ))); + } + if !hash.chars().all(|c| c.is_ascii_hexdigit()) { + return Err(TaprootError::InvalidHash("hash must be hex".to_string())); + } + // Ensure lowercase for consistency (but accept any case on read). + // Storage uses lowercase hex from StateEngine::hash. + Ok(()) +} + +// --------------------------------------------------------------------------- +// Tests +// --------------------------------------------------------------------------- + +#[cfg(test)] +mod tests { + use super::*; + use crate::engine::StateEngine; + use crate::state::TaprootState; + + fn sample_state(repo: &str, branch: &str, commit: &str) -> TaprootState { + TaprootState::new(repo, branch, commit) + .with_runtime("python", "3.11.4") + .with_env("FOO", "bar") + } + + fn signed_sample(repo: &str, branch: &str) -> SignedState { + let state = sample_state(repo, branch, "abc123"); + let (priv_key, _) = StateEngine::generate_keypair(); + StateEngine::sign(&state, &priv_key).unwrap() + } + + #[test] + fn init_creates_dirs() { + let dir = tempfile::tempdir().unwrap(); + let reg_path = dir.path().join("registry"); + let reg = Registry::init(®_path).unwrap(); + assert!(reg.objects_dir().exists()); + assert!(reg.refs_dir().exists()); + // idempotent + let reg2 = Registry::init(®_path).unwrap(); + assert_eq!(reg.root(), reg2.root()); + } + + #[test] + fn push_and_pull_roundtrip() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let signed = signed_sample("myapp", "main"); + let hash = reg.push(&signed).unwrap(); + assert_eq!(hash, signed.hash); + let pulled = reg.pull(&hash).unwrap(); + assert_eq!(pulled, signed); + } + + #[test] + fn push_updates_ref_and_resolve() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let signed = signed_sample("org/myapp", "main"); + reg.push(&signed).unwrap(); + let resolved = reg.resolve_ref("org/myapp", "main").unwrap(); + assert_eq!(resolved, Some(signed.hash.clone())); + } + + #[test] + fn branch_with_slash_sanitized() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let signed = signed_sample("myapp", "feat/foo"); + reg.push(&signed).unwrap(); + // File should be feat%2Ffoo + let ref_path = reg.refs_dir().join("myapp").join("feat%2Ffoo"); + assert!(ref_path.exists()); + let list = reg.list("myapp").unwrap(); + assert!(list + .iter() + .any(|(b, h)| b == "feat/foo" && h == &signed.hash)); + assert_eq!( + reg.resolve_ref("myapp", "feat/foo").unwrap(), + Some(signed.hash) + ); + } + + #[test] + fn repo_with_slash_sanitized() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let signed = signed_sample("org/name", "main"); + reg.push(&signed).unwrap(); + let ref_path = reg.refs_dir().join("org%2Fname").join("main"); + assert!(ref_path.exists()); + let list = reg.list("org/name").unwrap(); + assert_eq!(list.len(), 1); + assert_eq!(list[0].0, "main"); + } + + #[test] + fn pull_missing_hash_errors() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let fake = "a".repeat(64); + let err = reg.pull(&fake).unwrap_err(); + assert!(matches!(err, TaprootError::ObjectNotFound(_))); + } + + #[test] + fn pull_validates_hash_format() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let err = reg.pull("not-hex").unwrap_err(); + assert!(matches!(err, TaprootError::InvalidHash(_))); + } + + #[test] + fn resolve_missing_returns_none() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + assert_eq!(reg.resolve_ref("nope", "main").unwrap(), None); + } + + #[test] + fn list_empty_repo() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + assert!(reg.list("empty").unwrap().is_empty()); + } + + #[test] + fn list_sorted_and_multiple_branches() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let s1 = signed_sample("myapp", "zebra"); + let s2 = signed_sample("myapp", "alpha"); + let s3 = signed_sample("myapp", "main"); + reg.push(&s1).unwrap(); + reg.push(&s2).unwrap(); + reg.push(&s3).unwrap(); + let list = reg.list("myapp").unwrap(); + let branches: Vec<_> = list.iter().map(|(b, _)| b.as_str()).collect(); + let mut sorted = branches.clone(); + sorted.sort(); + assert_eq!(branches, sorted); + assert_eq!(list.len(), 3); + } + + #[test] + fn log_returns_single_entry() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let signed = signed_sample("myapp", "main"); + reg.push(&signed).unwrap(); + let log = reg.log("myapp", "main").unwrap(); + assert_eq!(log.len(), 1); + assert_eq!(log[0].hash, signed.hash); + assert!(reg.log("myapp", "missing").unwrap().is_empty()); + } + + #[test] + fn push_verifies_hash_and_signature() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let mut signed = signed_sample("myapp", "main"); + // Tamper state without updating hash + signed.state.env_vars.insert("EVIL".into(), "1".into()); + let err = reg.push(&signed).unwrap_err(); + assert!(matches!( + err, + TaprootError::HashMismatch { .. } | TaprootError::InvalidSignature + )); + } + + #[test] + fn push_rejects_invalid_repo_branch() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let mut state = sample_state("myapp", "main", "abc123"); + state.base.repo = "".into(); + let (priv_key, _) = StateEngine::generate_keypair(); + let mut signed = StateEngine::sign(&state, &priv_key).unwrap(); + // Manually set empty repo after sign? Sign will have computed hash; push should reject via validate + signed.state.base.repo = "".into(); + // Need to re-hash to pass hash check but fail repo validation — easiest: push with empty repo directly + let err = reg.push(&signed).unwrap_err(); + assert!(matches!( + err, + TaprootError::InvalidKey(_) | TaprootError::HashMismatch { .. } + )); + } + + #[test] + fn pull_detects_tampered_object() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let signed = signed_sample("myapp", "main"); + let hash = reg.push(&signed).unwrap(); + // Tamper file on disk + let obj_path = reg.object_path(&hash); + let mut tampered: SignedState = signed.clone(); + tampered.state.env_vars.insert("TAMPER".into(), "1".into()); + let bytes = serde_json::to_vec_pretty(&tampered).unwrap(); + fs::write(&obj_path, bytes).unwrap(); + let err = reg.pull(&hash).unwrap_err(); + assert!(matches!( + err, + TaprootError::HashMismatch { .. } | TaprootError::InvalidSignature + )); + } + + #[test] + fn validate_hash_rejects_bad() { + assert!(validate_hash("abc").is_err()); + assert!(validate_hash(&"g".repeat(64)).is_err()); + assert!(validate_hash(&"a".repeat(64)).is_ok()); + } + + #[test] + fn sanitize_roundtrip() { + assert_eq!(sanitize("org/myapp"), "org%2Fmyapp"); + assert_eq!(sanitize("feat/foo/bar"), "feat%2Ffoo%2Fbar"); + assert_eq!(desanitize("feat%2Ffoo"), "feat/foo"); + assert_eq!(desanitize(&sanitize("a/b/c")), "a/b/c"); + // collision test: a/b vs a__b must not collide + assert_ne!(sanitize("a/b"), sanitize("a__b")); + // percent escaping + assert_eq!(sanitize("a%b"), "a%25b"); + assert_eq!(desanitize(&sanitize("a%b/c")), "a%b/c"); + } + + #[test] + fn push_idempotent() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let signed = signed_sample("myapp", "main"); + let h1 = reg.push(&signed).unwrap(); + let h2 = reg.push(&signed).unwrap(); + assert_eq!(h1, h2); + assert_eq!(reg.list("myapp").unwrap().len(), 1); + } + + #[test] + fn unsigned_push_allowed() { + let dir = tempfile::tempdir().unwrap(); + let reg = Registry::init(&dir.path().join("reg")).unwrap(); + let state = sample_state("myapp", "main", "abc123"); + let hash = StateEngine::hash(&state).unwrap(); + let signed = SignedState { + state, + hash: hash.clone(), + signature: None, + public_key: None, + }; + let h = reg.push(&signed).unwrap(); + assert_eq!(h, hash); + let pulled = reg.pull(&hash).unwrap(); + assert_eq!(pulled.signature, None); + } +} diff --git a/src/server.rs b/src/server.rs new file mode 100644 index 0000000..2fabc79 --- /dev/null +++ b/src/server.rs @@ -0,0 +1,353 @@ +use std::path::PathBuf; +use std::sync::Arc; + +use axum::{ + extract::{Path, State}, + http::{HeaderMap, StatusCode}, + response::{IntoResponse, Json}, + routing::{get, post}, + Router, +}; +use serde::{Deserialize, Serialize}; + +use crate::engine::StateEngine; +use crate::error::TaprootError; +use crate::fabric::{AuditEntry, Fabric}; +use crate::registry::Registry; +use crate::state::SignedState; + +#[derive(Clone)] +pub struct AppState { + pub registry: Arc, + pub fabric: Arc, + pub registry_root: PathBuf, +} + +/// POST /v1/states — body is SignedState JSON +pub async fn push_state( + State(app): State>, + headers: HeaderMap, + Json(signed): Json, +) -> impl IntoResponse { + // auth check if tokens configured + let actor = match check_auth(&app.fabric, &headers) { + Ok(a) => a, + Err(e) => { + return ( + StatusCode::UNAUTHORIZED, + Json(serde_json::json!({"error": e})), + ) + .into_response() + } + }; + + // verify hash + signature + if let Err(e) = StateEngine::verify(&signed) { + return ( + StatusCode::BAD_REQUEST, + Json(serde_json::json!({"error": format!("verify failed: {e}")})), + ) + .into_response(); + } + let computed = match StateEngine::hash(&signed.state) { + Ok(h) => h, + Err(e) => { + return ( + StatusCode::BAD_REQUEST, + Json(serde_json::json!({"error": e.to_string()})), + ) + .into_response() + } + }; + if computed != signed.hash { + return ( + StatusCode::BAD_REQUEST, + Json(serde_json::json!({"error": format!("hash mismatch expected {} got {}", signed.hash, computed)})), + ) + .into_response(); + } + + // policy check: require signed + let policy = app + .fabric + .get_policy(&signed.state.base.repo) + .unwrap_or_default(); + if policy.require_signed && signed.signature.is_none() { + return ( + StatusCode::BAD_REQUEST, + Json(serde_json::json!({"error": "policy requires signed state"})), + ) + .into_response(); + } + + // push to registry + match app.registry.push(&signed) { + Ok(hash) => { + let _ = app.fabric.audit(AuditEntry { + ts: chrono::Utc::now(), + action: "push".into(), + repo: signed.state.base.repo.clone(), + branch: signed.state.base.branch.clone(), + hash: hash.clone(), + actor: actor.unwrap_or_else(|| "local".into()), + signed: signed.signature.is_some(), + }); + (StatusCode::OK, Json(serde_json::json!({"hash": hash}))).into_response() + } + Err(e) => ( + StatusCode::INTERNAL_SERVER_ERROR, + Json(serde_json::json!({"error": e.to_string()})), + ) + .into_response(), + } +} + +/// GET /v1/states/:hash +pub async fn get_state( + State(app): State>, + Path(hash): Path, +) -> impl IntoResponse { + match app.registry.pull(&hash) { + Ok(signed) => (StatusCode::OK, Json(signed)).into_response(), + Err(TaprootError::ObjectNotFound(_)) => ( + StatusCode::NOT_FOUND, + Json(serde_json::json!({"error": "not found"})), + ) + .into_response(), + Err(e) => ( + StatusCode::BAD_REQUEST, + Json(serde_json::json!({"error": e.to_string()})), + ) + .into_response(), + } +} + +/// GET /v1/refs/:repo/:branch +pub async fn get_ref( + State(app): State>, + Path((repo, branch)): Path<(String, String)>, +) -> impl IntoResponse { + let repo = crate::registry::desanitize(&repo); + let branch = crate::registry::desanitize(&branch); + match app.registry.resolve_ref(&repo, &branch) { + Ok(Some(hash)) => ( + StatusCode::OK, + Json(serde_json::json!({"repo": repo, "branch": branch, "hash": hash})), + ) + .into_response(), + Ok(None) => ( + StatusCode::NOT_FOUND, + Json(serde_json::json!({"error": "ref not found"})), + ) + .into_response(), + Err(e) => ( + StatusCode::BAD_REQUEST, + Json(serde_json::json!({"error": e.to_string()})), + ) + .into_response(), + } +} + +/// GET /v1/audit?repo=myapp +pub async fn get_audit( + State(app): State>, + axum::extract::Query(q): axum::extract::Query>, +) -> impl IntoResponse { + let repo = q.get("repo").map(|s| s.as_str()); + match app.fabric.audit_log(repo) { + Ok(entries) => (StatusCode::OK, Json(entries)).into_response(), + Err(e) => ( + StatusCode::INTERNAL_SERVER_ERROR, + Json(serde_json::json!({"error": e.to_string()})), + ) + .into_response(), + } +} + +/// GET /v1/policy/:repo +pub async fn get_policy( + State(app): State>, + Path(repo): Path, +) -> impl IntoResponse { + let repo = crate::registry::desanitize(&repo); + match app.fabric.get_policy(&repo) { + Ok(p) => (StatusCode::OK, Json(p)).into_response(), + Err(e) => ( + StatusCode::INTERNAL_SERVER_ERROR, + Json(serde_json::json!({"error": e.to_string()})), + ) + .into_response(), + } +} + +/// POST /v1/policy/:repo +#[derive(Debug, Deserialize)] +pub struct SetPolicyReq { + pub require_signed: Option, + pub require_check_strict: Option, + pub allowed_branches: Option>, + pub blocked_env_keys: Option>, +} + +pub async fn set_policy( + State(app): State>, + headers: HeaderMap, + Path(repo): Path, + Json(req): Json, +) -> impl IntoResponse { + if let Err(e) = check_auth(&app.fabric, &headers) { + return ( + StatusCode::UNAUTHORIZED, + Json(serde_json::json!({"error": e})), + ) + .into_response(); + } + let repo = crate::registry::desanitize(&repo); + let mut policy = app.fabric.get_policy(&repo).unwrap_or_default(); + policy.repo = repo.clone(); + if let Some(v) = req.require_signed { + policy.require_signed = v; + } + if let Some(v) = req.require_check_strict { + policy.require_check_strict = v; + } + if let Some(v) = req.allowed_branches { + policy.allowed_branches = v; + } + if let Some(v) = req.blocked_env_keys { + policy.blocked_env_keys = v; + } + match app.fabric.set_policy(&policy) { + Ok(()) => (StatusCode::OK, Json(policy)).into_response(), + Err(e) => ( + StatusCode::INTERNAL_SERVER_ERROR, + Json(serde_json::json!({"error": e.to_string()})), + ) + .into_response(), + } +} + +/// POST /v1/check — drift check between two hashes or states +#[derive(Debug, Deserialize)] +pub struct CheckReq { + pub baseline_hash: String, + pub current_hash: String, + #[serde(default = "default_true")] + pub strict: bool, +} + +fn default_true() -> bool { + true +} + +#[derive(Debug, Serialize)] +pub struct CheckResp { + pub drifted: bool, + pub has_breaking: bool, + pub diffs: Vec, + pub warnings: Vec, +} + +pub async fn check( + State(app): State>, + Json(req): Json, +) -> impl IntoResponse { + let baseline = match app.registry.pull(&req.baseline_hash) { + Ok(s) => s, + Err(e) => { + return ( + StatusCode::NOT_FOUND, + Json(serde_json::json!({"error": format!("baseline not found: {e}")})), + ) + .into_response() + } + }; + let current = match app.registry.pull(&req.current_hash) { + Ok(s) => s, + Err(e) => { + return ( + StatusCode::NOT_FOUND, + Json(serde_json::json!({"error": format!("current not found: {e}")})), + ) + .into_response() + } + }; + + let mut warnings = Vec::new(); + if baseline.signature.is_none() { + warnings.push("baseline is unsigned".to_string()); + } + if current.signature.is_none() { + warnings.push("current is unsigned".to_string()); + } + let diffs = crate::diff::diff_states(&baseline.state, ¤t.state, req.strict); + let has_breaking = crate::diff::has_breaking(&diffs) || !warnings.is_empty(); + let drifted = !diffs.is_empty() || !warnings.is_empty(); + + let resp = CheckResp { + drifted, + has_breaking, + diffs, + warnings, + }; + (StatusCode::OK, Json(resp)).into_response() +} + +fn check_auth(fabric: &Fabric, headers: &HeaderMap) -> Result, String> { + let tokens = fabric.tokens().map_err(|e| e.to_string())?; + if tokens.is_empty() { + // open registry — no auth required + return Ok(None); + } + let auth = headers + .get("authorization") + .and_then(|v| v.to_str().ok()) + .unwrap_or(""); + let token = auth.strip_prefix("Bearer ").unwrap_or(auth); + if token.is_empty() { + return Err("missing Authorization Bearer token".into()); + } + match fabric.verify_token(token) { + Ok(Some(actor)) => Ok(Some(actor)), + Ok(None) => Err("invalid token".into()), + Err(e) => Err(e.to_string()), + } +} + +pub fn build_router(state: Arc) -> Router { + Router::new() + .route("/v1/states", post(push_state)) + .route("/v1/states/:hash", get(get_state)) + .route("/v1/refs/:repo/:branch", get(get_ref)) + .route("/v1/audit", get(get_audit)) + .route("/v1/policy/:repo", get(get_policy).post(set_policy)) + .route("/v1/check", post(check)) + .route( + "/health", + get(|| async { Json(serde_json::json!({"status":"ok"})) }), + ) + .with_state(state) +} + +pub async fn serve( + registry_root: PathBuf, + fabric_root: PathBuf, + addr: String, +) -> Result<(), TaprootError> { + let registry = Arc::new(Registry::init(®istry_root)?); + let fabric = Arc::new(Fabric::init(&fabric_root, ®istry_root)?); + let state = Arc::new(AppState { + registry, + fabric, + registry_root, + }); + let app = build_router(state); + let listener = tokio::net::TcpListener::bind(&addr) + .await + .map_err(TaprootError::Io)?; + tracing::info!(%addr, "taproot registry API listening"); + axum::serve(listener, app) + .await + .map_err(|e| TaprootError::Io(std::io::Error::other(e.to_string())))?; + Ok(()) +} diff --git a/src/state.rs b/src/state.rs new file mode 100644 index 0000000..c1b6a4d --- /dev/null +++ b/src/state.rs @@ -0,0 +1,121 @@ +use chrono::{DateTime, Utc}; +use serde::{Deserialize, Serialize}; +use std::collections::BTreeMap; + +/// Git baseline this environment inherits from. +/// Think `main@9f3a2c1` — branch + commit. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct BaseRef { + pub repo: String, + pub branch: String, + pub commit: String, +} + +/// A pinned runtime — python 3.11.4, node 20.5.0, etc. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct Runtime { + pub name: String, + pub version: String, + #[serde(default = "default_true")] + pub pinned: bool, +} + +fn default_true() -> bool { + true +} + +/// A containerized service — postgres 15.3 etc. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct Container { + pub name: String, + pub version: String, + /// e.g. postgres:15.3 or full digest + pub image: String, + #[serde(default)] + pub signed: bool, +} + +/// The core state object — everything needed to reproduce the env. +/// BTreeMap for env_vars ensures deterministic ordering. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct TaprootState { + /// Schema version, e.g. "1.0" + pub version: String, + pub base: BaseRef, + #[serde(default, skip_serializing_if = "Vec::is_empty")] + pub runtimes: Vec, + #[serde(default, skip_serializing_if = "Vec::is_empty")] + pub containers: Vec, + #[serde(default, skip_serializing_if = "BTreeMap::is_empty")] + pub env_vars: BTreeMap, + /// When snapshot was taken + pub created_at: DateTime, + /// Optional freeform notes + #[serde(default, skip_serializing_if = "Option::is_none")] + pub notes: Option, +} + +impl TaprootState { + pub fn new( + repo: impl Into, + branch: impl Into, + commit: impl Into, + ) -> Self { + Self { + version: "1.0".to_string(), + base: BaseRef { + repo: repo.into(), + branch: branch.into(), + commit: commit.into(), + }, + runtimes: Vec::new(), + containers: Vec::new(), + env_vars: BTreeMap::new(), + created_at: Utc::now(), + notes: None, + } + } + + pub fn with_runtime(mut self, name: impl Into, version: impl Into) -> Self { + self.runtimes.push(Runtime { + name: name.into(), + version: version.into(), + pinned: true, + }); + self + } + + pub fn with_container( + mut self, + name: impl Into, + version: impl Into, + image: impl Into, + ) -> Self { + self.containers.push(Container { + name: name.into(), + version: version.into(), + image: image.into(), + signed: true, + }); + self + } + + pub fn with_env(mut self, key: impl Into, value: impl Into) -> Self { + self.env_vars.insert(key.into(), value.into()); + self + } +} + +/// State + its integrity envelope. Hash is sha256 of canonical JSON. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct SignedState { + pub state: TaprootState, + /// hex sha256, no prefix + pub hash: String, + /// base64 ed25519 signature over hash bytes, None if unsigned + #[serde(default, skip_serializing_if = "Option::is_none")] + pub signature: Option, + /// base64 public key that signed it, if any + #[serde(default, skip_serializing_if = "Option::is_none")] + pub public_key: Option, +} diff --git a/src/util.rs b/src/util.rs new file mode 100644 index 0000000..61508f8 --- /dev/null +++ b/src/util.rs @@ -0,0 +1,75 @@ +use std::fs; +use std::io::Write; +use std::path::Path; + +use crate::error::TaprootError; + +pub(crate) fn atomic_write(path: &Path, bytes: &[u8]) -> Result<(), TaprootError> { + let parent = path + .parent() + .filter(|p| !p.as_os_str().is_empty()) + .unwrap_or_else(|| Path::new(".")); + if !parent.as_os_str().is_empty() && parent != Path::new(".") { + fs::create_dir_all(parent)?; + } + let mut tmp = tempfile::NamedTempFile::new_in(parent)?; + tmp.write_all(bytes)?; + tmp.flush()?; + tmp.as_file().sync_all()?; + tmp.persist(path).map_err(|e| TaprootError::Io(e.error))?; + if let Ok(dir) = fs::File::open(parent) { + let _ = dir.sync_all(); + } + Ok(()) +} + +pub(crate) fn validate_non_empty(field: &str, value: &str) -> Result<(), TaprootError> { + if value.trim().is_empty() { + return Err(TaprootError::InvalidKey(format!( + "{field} must be non-empty" + ))); + } + if value.len() > 256 { + return Err(TaprootError::InvalidKey(format!( + "{field} too long (max 256)" + ))); + } + if value.contains('\0') || value.contains('\\') { + return Err(TaprootError::InvalidKey(format!( + "{field} must not contain null byte or backslash" + ))); + } + if value.contains('\n') || value.contains('\r') { + return Err(TaprootError::InvalidKey(format!( + "{field} must not contain newline" + ))); + } + if value == "." || value == ".." { + return Err(TaprootError::InvalidKey(format!( + "{field} must not be '.' or '..'" + ))); + } + if value.starts_with('/') || value.ends_with('/') { + return Err(TaprootError::InvalidKey(format!( + "{field} must not start or end with '/'" + ))); + } + if value.contains("//") { + return Err(TaprootError::InvalidKey(format!( + "{field} must not contain '//'" + ))); + } + for seg in value.split('/') { + if seg == "." || seg == ".." { + return Err(TaprootError::InvalidKey(format!( + "{field} segment must not be '.' or '..'" + ))); + } + if seg.is_empty() && value.contains('/') { + return Err(TaprootError::InvalidKey(format!( + "{field} contains empty segment" + ))); + } + } + Ok(()) +} diff --git a/tests/cli.rs b/tests/cli.rs new file mode 100644 index 0000000..3eb9285 --- /dev/null +++ b/tests/cli.rs @@ -0,0 +1,275 @@ +use taproot::cli::{ + handle_check, handle_init, handle_mount, handle_status, handle_verify, CheckArgs, InitArgs, + MountArgs, +}; + +fn temp_dir() -> tempfile::TempDir { + tempfile::tempdir().unwrap() +} + +#[test] +fn init_allows_slash_in_repo_and_branch() { + let dir = temp_dir(); + let state_path = dir.path().join("state.json"); + let args = InitArgs { + repo: "Epoch-AI-Lab/taproot".into(), + branch: "feat/cli-v0.0.1-readonly-mount".into(), + commit: "abc123".into(), + state_path: Some(state_path.clone()), + no_sign: true, + }; + assert!(handle_init(args).is_ok()); + assert!(state_path.exists()); +} + +#[test] +fn init_rejects_dotdot() { + let dir = temp_dir(); + let state_path = dir.path().join("state.json"); + let args = InitArgs { + repo: "myapp".into(), + branch: "../etc".into(), + commit: "abc".into(), + state_path: Some(state_path), + no_sign: true, + }; + assert!(handle_init(args).is_err()); +} + +#[test] +fn init_rejects_empty_repo() { + let dir = temp_dir(); + let state_path = dir.path().join("state.json"); + let args = InitArgs { + repo: "".into(), + branch: "main".into(), + commit: "abc".into(), + state_path: Some(state_path), + no_sign: true, + }; + assert!(handle_init(args).is_err()); +} + +#[test] +fn mount_rejects_symlink_even_with_no_fuse() { + let dir = temp_dir(); + let state_path = dir.path().join("state.json"); + let init = InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(state_path.clone()), + no_sign: true, + }; + handle_init(init).unwrap(); + + let real = dir.path().join("real"); + std::fs::create_dir_all(&real).unwrap(); + let link = dir.path().join("link"); + std::os::unix::fs::symlink(&real, &link).unwrap(); + + let args = MountArgs { + path: link, + state_path: Some(state_path), + no_fuse: true, + }; + assert!(handle_mount(args).is_err()); +} + +#[test] +fn mount_no_fuse_succeeds_on_valid_dir() { + let dir = temp_dir(); + let state_path = dir.path().join("state.json"); + let init = InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(state_path.clone()), + no_sign: true, + }; + handle_init(init).unwrap(); + + let mnt = dir.path().join("mnt"); + std::fs::create_dir_all(&mnt).unwrap(); + + let args = MountArgs { + path: mnt, + state_path: Some(state_path), + no_fuse: true, + }; + assert!(handle_mount(args).is_ok()); +} + +#[test] +fn check_passes_on_identical_signed_states() { + let dir = temp_dir(); + let baseline = dir.path().join("baseline.json"); + let head = dir.path().join("head.json"); + handle_init(InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(baseline.clone()), + no_sign: false, + }) + .unwrap(); + std::fs::copy(&baseline, &head).unwrap(); + assert!(handle_check(CheckArgs { + baseline: baseline.clone(), + state_path: Some(head), + json: false, + strict: true, + allow_warnings: false, + no_strict: false, + }) + .is_ok()); +} + +#[test] +fn check_fails_on_commit_drift_strict() { + let dir = temp_dir(); + let baseline = dir.path().join("baseline.json"); + let head = dir.path().join("head.json"); + handle_init(InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(baseline.clone()), + no_sign: false, + }) + .unwrap(); + handle_init(InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "deadbeef".into(), + state_path: Some(head.clone()), + no_sign: false, + }) + .unwrap(); + // strict=true => branch/commit drift is breaking + assert!(handle_check(CheckArgs { + baseline: baseline.clone(), + state_path: Some(head.clone()), + json: false, + strict: true, + allow_warnings: false, + no_strict: false, + }) + .is_err()); + // strict=false => warning only, should pass when allow_warnings false? actually warnings pass without strict + // with allow_warnings=true and strict=true, warnings pass + assert!(handle_check(CheckArgs { + baseline, + state_path: Some(head), + json: false, + strict: false, + allow_warnings: false, + no_strict: false, + }) + .is_ok()); +} + +#[test] +fn check_fails_on_unsigned_strict() { + let dir = temp_dir(); + let baseline = dir.path().join("baseline.json"); + let head = dir.path().join("head.json"); + handle_init(InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(baseline.clone()), + no_sign: false, + }) + .unwrap(); + handle_init(InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(head.clone()), + no_sign: true, + }) + .unwrap(); + assert!(handle_check(CheckArgs { + baseline, + state_path: Some(head), + json: true, + strict: true, + allow_warnings: false, + no_strict: false, + }) + .is_err()); +} + +#[test] +fn check_fails_on_missing_baseline() { + let dir = temp_dir(); + let head = dir.path().join("head.json"); + handle_init(InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(head.clone()), + no_sign: false, + }) + .unwrap(); + assert!(handle_check(CheckArgs { + baseline: dir.path().join("nope.json"), + state_path: Some(head), + json: false, + strict: true, + allow_warnings: false, + no_strict: false, + }) + .is_err()); +} + +#[test] +fn check_detects_env_drift() { + use taproot::{StateEngine, TaprootState}; + let dir = temp_dir(); + let baseline = dir.path().join("baseline.json"); + let head = dir.path().join("head.json"); + // Create baseline with env FOO=bar + let state = TaprootState::new("myapp", "main", "abc123").with_env("FOO", "bar"); + let (priv_key, _) = StateEngine::generate_keypair(); + let signed = StateEngine::sign(&state, &priv_key).unwrap(); + StateEngine::save(&baseline, &signed).unwrap(); + // Head adds env NEW=1 + let mut state2 = state.clone(); + state2.env_vars.insert("NEW".into(), "1".into()); + let signed2 = StateEngine::sign(&state2, &priv_key).unwrap(); + StateEngine::save(&head, &signed2).unwrap(); + assert!(handle_check(CheckArgs { + baseline, + state_path: Some(head), + json: false, + strict: true, + allow_warnings: false, + no_strict: false, + }) + .is_err()); +} + +#[test] +fn status_and_verify_roundtrip() { + let dir = temp_dir(); + let state_path = dir.path().join("state.json"); + let init = InitArgs { + repo: "myapp".into(), + branch: "main".into(), + commit: "abc123".into(), + state_path: Some(state_path.clone()), + no_sign: false, + }; + handle_init(init).unwrap(); + + assert!(handle_status(taproot::cli::StatusArgs { + state_path: Some(state_path.clone()) + }) + .is_ok()); + assert!(handle_verify(taproot::cli::VerifyArgs { + state_path: Some(state_path) + }) + .is_ok()); +}