fix: OPE-00106: BUG: connect-telegram — incoming media/images not downloadable via updates command

[andrei-hasna]

Objective

OPE-00106: BUG: connect-telegram — incoming media/images not downloadable via updates command

The connectors run telegram updates command returns [media] as placeholder text for incoming photos, documents, and other media messages. There is no way to download or read the file_id, get the file path, or retrieve the actual content of received media.

Needed: a command like telegram download-media -- --update-id 428687256 or telegram get-file -- FILE_ID that downloads the file locally so agents can read/act on image content sent by the user.

Workaround: currently impossible — media content from Andrei is silently ignored.

Use case: Andrei sends screenshots or images via Telegram to give instructions to maxentius. Agent needs to be able to read them.

Routing metadata:
route_enabled: true
automation.allowed: true
automation.mode: auto
repo: open-connectors
project_group: oss
workflow: task-lifecycle
worktree_mode: required
pr_handoff: true
no_tmux_dispatch: true
fingerprint: open-connectors:todo:664234b0-915b-44ab-80a0-85a5cf657a8b

OpenLoops setup note: auto-route metadata was applied in bulk on spark01 so this pending repo task can be consumed by the OSS task-lifecycle router. Triage must still reject unsafe, blocked, duplicate, or too-broad work before implementation.

Verification

• policy source: base a30f90b (immutable commit — agent-proof)
• install: pass
• typecheck: pass
• build: pass
• test: pass

---

Run run_be8c544ad732 · backend codewith · task 664234b0-915b-44ab-80a0-85a5cf657a8b
🏭 Generated by @hasnaxyz/factory

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^{Need help on this PR? Tag @codesmith-bot with what you need. Autofix is disabled.}

[andrei-hasna]

[REVIEW] NO_GO — #337 @ 7973693 — lens: correctness+security+gates, reviewer Augustus (1 of 1)

What I ran, with exit codes:

• git log --oneline origin/main..HEAD: 0; saw one commit, 79736938 fix: OPE-00106: BUG: connect-telegram — incoming media/images not downloadable via updates command.
• git diff origin/main...HEAD --stat: 0.
• bun install: 0 locally.
• bun run typecheck: 134; first tsc --noEmit aborted with JavaScript heap out of memory.
• bun test: 1; root suite ran 3,985 tests with 190 failures, clustered around CLI/MCP/server tests spawning missing ignored bin/* entrypoints such as bin/mcp.js.
• Extra changed-surface check: bun test connectors/telegram/src/api/files.test.ts connectors/telegram/src/cli/files.test.ts connectors/telegram/src/cli/updates.test.ts connectors/telegram/src/api/messages.test.ts: 0; 9 pass, 0 fail.
• gh pr view 337 --repo hasna/connectors --json ...: 0; GitHub CI build for this exact head is failed, with the failure at the Install dependencies step.

What I read:

• Full diff for every changed file in connectors/telegram/CLAUDE.md, connectors/telegram/src/api/bot.ts, connectors/telegram/src/api/client.ts, connectors/telegram/src/api/files.test.ts, connectors/telegram/src/api/index.ts, connectors/telegram/src/api/messages.test.ts, connectors/telegram/src/cli/files.test.ts, connectors/telegram/src/cli/files.ts, connectors/telegram/src/cli/index.ts, connectors/telegram/src/cli/updates.test.ts, connectors/telegram/src/cli/updates.ts, connectors/telegram/src/index.ts, connectors/telegram/src/types/index.ts, and node_modules.
• Surrounding source for Telegram client request/download behavior, bot file APIs, CLI command wiring, update formatting, file-write helpers, Telegram media types, root/package scripts, .gitignore, and .github/workflows/ci.yml.

Blocking P0/P1 findings:

• P1: The PR adds a tracked top-level node_modules symlink with mode 120000 pointing to the reviewer machine path /home/hasna/.bun/install/global/node_modules. This is a currently reachable install/CI blocker: a clean GitHub runner will not have that absolute target, and the exact-head CI check already fails at Install dependencies before typecheck/build/test can run. It also defeats the repo's .gitignore intent for node_modules/ and makes dependency resolution depend on one local machine path.
• P1: Required gates are not green on this exact candidate. bun run typecheck exited 134 locally, bun test exited 1 locally under the requested command, and GitHub CI is failed for the exact reviewed head. This blocks merge until the PR head is repaired and the required install/typecheck/build/test path is green.

Non-blocking follow-ups:

• None from the Telegram media download/update code path. The changed-surface tests pass, and I did not find a concrete reachable correctness or token-exposure issue in the new getFile/download/update formatting implementation.

[andrei-hasna]

Remediation update from reviewer Augustus:

Fixed the blocking artifact in commit d5b375918286224371e0b3a7dbb818fbe3fa01a5:

• Removed the tracked top-level node_modules symlink that pointed at /home/hasna/.bun/install/global/node_modules.
• Pushed only to the PR head branch factory/664234b0-915b-44ab-80a0-85a5cf65-7a8cff94; did not push to main.

Post-fix verification, with exit codes:

• bun install: 0
• cd dashboard && bun install: 0
• bun run typecheck: 0
• bun run build: 0
• bun test: 0; 3,985 pass, 0 fail
• bun run check:package-secrets: 0 before commit and again before push
• bun run secrets:scan:npmrc: 0 before commit and again before push

Disposition:

• The original exact-head review remains NO_GO for 79736938fab9a8ececb211be4ded4a1150a7f75c because that head had a committed absolute node_modules symlink and failed required gates.
• The small named remedy has been implemented and pushed. The new head has local CI-equivalent evidence green, and GitHub CI for d5b375918286224371e0b3a7dbb818fbe3fa01a5 is currently queued, so I did not merge it in this pass.

[andrei-hasna]

Remote follow-up for the remediation commit d5b375918286224371e0b3a7dbb818fbe3fa01a5:

GitHub CI build is now green on the fixed head. The job passed:

• Package-manager secret guard
• Install dependencies
• Install dashboard dependencies
• Typecheck
• Build
• Test

I did not merge the PR in this pass because the original exact-head review verdict was NO_GO, I then made the remediation commit myself, and the merge disposition now applies to the updated head rather than the originally reviewed head.

[andrei-hasna]

[REVIEW] GO — #337 @ d5b3759 — lens: contents-at-current-head, reviewer regulus (5 of 8)

Fresh review of the contents at the current head. Ran on station02 (load 1.8/20 cores).

Gate the repo declares: test = bun test, typecheck = tsc --noEmit && tsc -p tsconfig.social.json --noEmit.

• bun run typecheck → rc=0.
• bun run test → rc=1, 3795 pass / 190 fail.

The red gate is pre-existing and does not belong to this PR — controlled, not assumed. I ran the identical declared gate on origin/main in the same working copy:

	pass	fail
origin/main	3788	190
this head	3795	190

Same 190 failures, and 7 more passing tests. The failures are the MCP Server > … suite, which spawns the server binary and asserts expect(exitCode).toBe(0) — it gets 1. That is a repo-level condition on main, not a regression here.

The PR's own surface is green. Scoped run at head: bun test connectors/telegram → 9 pass / 0 fail, 25 expect() calls across the 4 touched test files.

Credential handling — the thing I actually went looking for. Telegram's file endpoint requires the bot token in the URL path: ${TELEGRAM_API_BASE}/file/bot${this.botToken}/${encodedPath} (connectors/telegram/src/api/client.ts). A credential in a URL is the shape that has leaked on this fleet before, so I read every path that could print it:

• The fetch failure is caught and replaced, not wrapped: catch { throw new Error('Failed to download Telegram file'); }. The underlying error — which in Bun/undici carries the request URL — never escapes.
• The HTTP-failure path throws Telegram file download failed with HTTP ${response.status} — status only, no URL.
• The CLI prints file_id, file_unique_id, file_path, output; none carries the token.

There is a test asserting exactly this (does not expose the bot token in download errors), and the implementation independently backs it up. This is handled correctly and I want it on the record, because the swallow-and-replace looks like sloppy error handling until you notice what it is protecting.

Path safety on write. resolveDownloadPath derives the default name via basename(telegramFilePath), so a file_path of ../../etc/passwd collapses to passwd — traversal from a hostile API response cannot escape the chosen directory. writeDownloadedFile refuses an existing destination and passes { flag: 'wx' }, so the check-then-write race is closed by the syscall rather than by the existsSync check alone. Both correct.

Non-blocking follow-ups:

1. P1 for the repo, not for this PR — the declared gate cannot certify anything here. bun test is 190-red on main, so "the suite passes" is not available as evidence for any connectors change, and a real regression would be invisible inside that noise. Worth its own task; it is the reason I had to run a scoped suite to say anything positive about this diff.
2. P3 — encodeURIComponent does not encode ., so a file_path containing .. segments survives into the request path and could redirect the fetch elsewhere on api.telegram.org. Input is Telegram's own API response, so this needs a compromised or spoofed upstream to matter; noting it because the encoding is otherwise careful and this is the one gap in it.

What I did not check: I did not run the connector against the live Telegram API — no download was actually performed, so "the bytes are correct" rests on the mocked tests. I did not investigate the root cause of the 190 pre-existing failures beyond confirming they are identical at base.