Merge claude/2
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commit
95e7267e3e
@ -1,28 +1,30 @@
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#!/bin/bash
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#
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# Artifact APPLY pipeline — Phase 2 of the unified distribution primitive
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# (docs/roadmap/updates-and-distribution.md §8.3). The MUTATING side: it takes a
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# verified artifact from the signed index and applies it reversibly, then can
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# revert it. Runs ONLY under the task system (cli_artifact_commands.sh enqueues;
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# the processor re-invokes with LIBREPORTAL_TASK_EXEC=1, which is when these run).
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# Artifact APPLY pipeline -- Phase 2 of the unified distribution primitive
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# (docs/roadmap/updates-and-distribution.md section 8.3). The MUTATING side: it
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# takes a verified artifact from the signed index and applies it reversibly, and
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# can revert it. Runs ONLY under the task system (cli_artifact_commands.sh
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# enqueues; the processor re-invokes with LIBREPORTAL_TASK_EXEC=1).
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#
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# Design contracts (all enforced below, fail-closed):
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# * The trust core is the same anchor as releases — the index is minisign-
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# verified against the root-owned footprint key by lpFetchIndex (source/
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# artifacts.sh); the payload is sha256-pinned by that signed index and itself
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# minisign-verified. The publishers map + role gate makes a community key
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# unable to masquerade as official (registry-ready; first-party-only today).
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# * Trust core == the release anchor: the index is minisign-verified against the
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# root-owned footprint key by lpFetchIndex; APPLY additionally REFUSES unless
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# that verification actually happened (LP_INDEX_SIGSTATE==verified) and the
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# payload itself is sha256-pinned by the signed index AND minisig-verified.
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# The publishers map + role gate stops a community key claiming official.
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# * The op vocabulary is a CLOSED allowlist (no run-script/exec/shell, ever).
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# An unsupported op rejects the WHOLE artifact at validation, before any write.
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# * No op VALUE/PATH may carry a shell/quote/sed metacharacter (defense in depth
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# even against a compromised-but-signed payload): _artifactSafeScalar + the
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# _artifactPathAllowed charset gate enforce the "no code-exec" contract.
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# * ALL-OR-NOTHING: every op is dry-prechecked first; one failed precondition
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# skips the whole artifact untouched (recorded as a skip, so coverage gaps
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# are visible — a customised box may legitimately miss a fix).
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# * Two-tier reversibility: every op records a precise inverse into a per-id
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# applied-record (the revert path); a best-effort recovery snapshot is also
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# taken when a backup location exists (the dirty-op fallback).
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# * Mutations write only through the de-sudo funnels (runFileOp / runInstallOp /
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# updateConfigOption), never raw sudo. The install tree (our own code) is
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# off-limits to hotfixes — code fixes ride signed releases (fork 1).
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# skips the whole artifact untouched (recorded, so coverage gaps are visible).
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# * Two-tier reversibility: every op records a precise inverse (the revert path);
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# a best-effort snapshot is also taken. Rollback/revert NEVER report success
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# when an inverse op failed -- they record an explicit "*-incomplete" state.
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# * Mutations write only through the de-sudo funnels, path-aware (container tree
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# -> runFileOp/runFileWrite; manager-owned configs/ -> runInstallOp/Write),
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# never raw sudo. The install tree (our own code) is off-limits to hotfixes.
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# --- paths -------------------------------------------------------------------
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_artifactGenDir() { echo "${containers_dir%/}/libreportal/frontend/data/updater/generated"; }
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@ -34,14 +36,42 @@ _artifactRecordFile() { echo "$(_artifactAppliedDir)/$1.json"; } # $1=id
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# parsing, and apply is a heavy, rare, privileged path where requiring jq is fine.
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_artifactNeedJq() {
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command -v jq >/dev/null 2>&1 && return 0
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isError "artifact: jq is required to apply/revert artifacts (the op interpreter needs it) — refusing."
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isError "artifact: jq is required to apply/revert artifacts (the op interpreter needs it) -- refusing."
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return 1
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}
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# Reject a scalar that could inject when it flows into a shell/sed/sourced-config
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# context. Op values come from a signed payload, but the "no code-exec" contract
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# must hold even for a compromised-but-signed payload (defense in depth).
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# Bans: double-quote, single-quote, backslash, $, backtick, and any whitespace
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# control char (newline/CR/tab).
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_artifactSafeScalar() {
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case "$1" in
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*'"'*|*"'"*|*'\'*|*'$'*|*'`'*) return 1 ;;
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esac
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[[ "$1" == *$'\n'* || "$1" == *$'\r'* || "$1" == *$'\t'* ]] && return 1
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return 0
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}
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# Path-aware writer/remover: container tree -> runFileWrite/runFileOp (install user
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# in rootless); manager-owned (configs/) -> runInstallWrite/runInstallOp. A
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# system-scope hotfix patches configs/, which the container funnel can't write.
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_artifactWriteFile() { # stdin -> $1
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local path="$1"
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if [[ -n "${containers_dir:-}" && "$path" == "${containers_dir%/}/"* ]]; then runFileWrite "$path"
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else runInstallWrite "$path"; fi
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}
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_artifactRmFile() {
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local path="$1"
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if [[ -n "${containers_dir:-}" && "$path" == "${containers_dir%/}/"* ]]; then runFileOp rm -f "$path"
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else runInstallOp rm -f "$path"; fi
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}
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# ----------------------------------------------------------------------------
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# RESOLVE — fetch+verify the index, pull out one artifact, check the gates.
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# RESOLVE -- fetch+verify the index, pull out one artifact, check the gates.
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# Echoes the artifact JSON on success; non-zero (nothing usable) otherwise.
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# Sets globals: _ART_INDEX (verified index json), _ART_SCOPE, _ART_APP.
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# (LP_INDEX_SIGSTATE is set by lpFetchIndex; artifactApply enforces it.)
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# ----------------------------------------------------------------------------
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_artifactResolve() {
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local id="$1"
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@ -61,15 +91,15 @@ _artifactResolve() {
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trust="$(jq -r '.trust // "official"' <<<"$art")"
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role="$(printf '%s' "$_ART_INDEX" | jq -r --arg p "$pub" '.publishers[$p].role // empty' 2>/dev/null)"
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if [[ -z "$pub" || -z "$role" ]]; then
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isError "artifact: publisher '$pub' is not in the index publishers map — refusing."; return 1
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isError "artifact: publisher '$pub' is not in the index publishers map -- refusing."; return 1
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fi
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if [[ "$trust" == "official" && "$role" != "official" ]]; then
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isError "artifact: '$id' claims trust=official but publisher '$pub' has role '$role' — refusing."; return 1
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isError "artifact: '$id' claims trust=official but publisher '$pub' has role '$role' -- refusing."; return 1
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fi
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if [[ "$role" != "official" ]]; then
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# Community/custom would require the artifact's own canonical-bytes signature
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# against the publisher's key. Not enabled in this first-party-only build.
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isError "artifact: publisher role '$role' (non-official) is not enabled yet — refusing."; return 1
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isError "artifact: publisher role '$role' (non-official) is not enabled yet -- refusing."; return 1
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fi
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# --- gates (applies_when) ---
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@ -77,7 +107,7 @@ _artifactResolve() {
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_ART_SCOPE="system"; [[ -n "$_ART_APP" ]] && _ART_SCOPE="app"
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if [[ "$_ART_SCOPE" == "app" && ! -d "${containers_dir%/}/$_ART_APP" ]]; then
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isNotice "artifact: '$id' targets '$_ART_APP' which is not installed — not applicable."; return 2
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isNotice "artifact: '$id' targets '$_ART_APP' which is not installed -- not applicable."; return 2
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fi
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local minlp maxlp maxfp curlp curfp
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@ -86,15 +116,15 @@ _artifactResolve() {
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maxfp="$(jq -r '.applies_when.max_footprint // empty' <<<"$art")"
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curlp="${CFG_LIBREPORTAL_VERSION:-$(cat "$script_dir/version" 2>/dev/null | tr -dc '0-9.')}"
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if [[ -n "$minlp" && -n "$curlp" ]] && lpVersionGt "$minlp" "$curlp"; then
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isNotice "artifact: '$id' needs LibrePortal >= $minlp (have ${curlp:-?}) — not applicable."; return 2
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isNotice "artifact: '$id' needs LibrePortal >= $minlp (have ${curlp:-?}) -- not applicable."; return 2
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fi
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if [[ -n "$maxlp" && -n "$curlp" ]] && lpVersionGt "$curlp" "$maxlp"; then
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isNotice "artifact: '$id' applies only up to LibrePortal $maxlp (have $curlp) — not applicable."; return 2
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isNotice "artifact: '$id' applies only up to LibrePortal $maxlp (have $curlp) -- not applicable."; return 2
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fi
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if [[ -n "$maxfp" ]]; then
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curfp="$(lpInstalledFootprintVersion)"
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if (( curfp > maxfp )); then
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isNotice "artifact: '$id' applies only up to footprint $maxfp (have $curfp) — not applicable."; return 2
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isNotice "artifact: '$id' applies only up to footprint $maxfp (have $curfp) -- not applicable."; return 2
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fi
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fi
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@ -102,11 +132,12 @@ _artifactResolve() {
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}
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# ----------------------------------------------------------------------------
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# PAYLOAD — download, sha256-pin (from the signed index), minisig-verify.
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# PAYLOAD -- download, sha256-pin (from the signed index), minisig-verify.
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# REFUSES an unsigned payload (signing-not-activated) on the apply path.
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# Echoes the verified payload JSON; non-zero on any failure.
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# ----------------------------------------------------------------------------
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_artifactFetchPayload() {
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local art="$1" base channel url want_sha sig_url tmp pf sf got kind
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local art="$1" base channel url want_sha sig_url tmp pf sf got kind pstate
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base="$(lpReleaseBaseUrl)"; channel="$(lpReleaseChannel)"
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kind="$(jq -r '.payload.kind // empty' <<<"$art")"
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if [[ "$kind" != "ops" ]]; then
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@ -115,19 +146,21 @@ _artifactFetchPayload() {
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url="$(jq -r '.payload.url // empty' <<<"$art")"
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want_sha="$(jq -r '.payload.sha256 // empty' <<<"$art")"
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sig_url="$(jq -r '.payload.sig // empty' <<<"$art")"
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[[ -n "$url" && -n "$want_sha" ]] || { isError "artifact: payload missing url/sha256 — refusing."; return 1; }
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[[ -n "$url" && -n "$want_sha" ]] || { isError "artifact: payload missing url/sha256 -- refusing."; return 1; }
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tmp="$(mktemp -d)"; pf="$tmp/payload.json"; sf="$tmp/payload.sig"
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# url/sig may be channel-relative ("stable/payloads/..") or absolute.
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case "$url" in http*://*) : ;; *) url="$base/$url" ;; esac
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if ! _lpDownload "$url" "$pf" 2>/dev/null; then isError "artifact: payload download failed."; rm -rf "$tmp"; return 1; fi
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got="$(_lpSha256 "$pf")"
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if [[ "$got" != "$want_sha" ]]; then isError "artifact: payload CHECKSUM MISMATCH — refusing."; rm -rf "$tmp"; return 1; fi
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if [[ "$got" != "$want_sha" ]]; then isError "artifact: payload CHECKSUM MISMATCH -- refusing."; rm -rf "$tmp"; return 1; fi
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if [[ -n "$sig_url" ]]; then
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case "$sig_url" in http*://*) : ;; *) sig_url="$base/$sig_url" ;; esac
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_lpDownload "$sig_url" "$sf" 2>/dev/null || true
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fi
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if ! lpVerifyMinisig "$pf" "$sf" >/dev/null; then rm -rf "$tmp"; return 1; fi
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pstate="$(lpVerifyMinisig "$pf" "$sf")" || { rm -rf "$tmp"; return 1; }
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if [[ "$pstate" != "verified" ]]; then
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isError "artifact: refusing to APPLY an unsigned payload (signing not activated / footprint key missing)."; rm -rf "$tmp"; return 1
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fi
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cat "$pf"; rm -rf "$tmp"
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}
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@ -135,10 +168,13 @@ _artifactFetchPayload() {
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# --- path allowlist (the write-target firewall) -----------------------------
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# scope:app -> only under $containers_dir/<app>/
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# scope:system -> only under $configs_dir/ (the install/code tree is OFF-LIMITS
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# to hotfixes — code rides signed releases; fork 1)
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# to hotfixes -- code rides signed releases; fork 1)
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# Also enforces a safe-filename charset so a path can never carry a shell/quote
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# metacharacter into a funnel (belt-and-braces with the runFileWrite argv fix).
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_artifactPathAllowed() {
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local path="$1" scope="$2" app="$3" real root
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[[ "$path" == *".."* ]] && return 1
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[[ "$path" =~ ^[A-Za-z0-9._/@:+-]+$ ]] || return 1
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real="$(realpath -m -- "$path" 2>/dev/null)"; [[ -n "$real" ]] || return 1
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if [[ "$scope" == "app" ]]; then
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root="$(realpath -m -- "${containers_dir%/}/$app" 2>/dev/null)"
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@ -150,7 +186,7 @@ _artifactPathAllowed() {
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return 1
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}
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# current image of an app's compose (first image: line), quotes stripped.
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# current image of an app's compose (first image: line), quotes/comment stripped.
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_artifactComposeImage() {
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local app="$1" f="${containers_dir%/}/$1/docker-compose.yml"
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[[ -f "$f" ]] || return 1
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@ -158,7 +194,7 @@ _artifactComposeImage() {
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}
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# ----------------------------------------------------------------------------
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# OP PRECHECK — pure read; returns 0 if the op can be applied as-is, else 1 with
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# OP PRECHECK -- pure read; returns 0 if the op can be applied as-is, else 1 with
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# a reason on stderr. This is the dry-run that enforces all-or-nothing.
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# ----------------------------------------------------------------------------
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_artifactOpPrecheck() {
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@ -166,38 +202,49 @@ _artifactOpPrecheck() {
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op="$(jq -r '.op // empty' <<<"$op_json")"
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case "$op" in
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set-config-key)
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local key expect cur
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local key value expect cur f
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key="$(jq -r '.key // empty' <<<"$op_json")"
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value="$(jq -r '.value // empty' <<<"$op_json")"
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[[ "$key" =~ ^CFG_[A-Z0-9_]+$ ]] || { isError "op set-config-key: bad key '$key'"; return 1; }
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expect="$(jq -r 'if has("expect_current") then .expect_current else " | ||||