Add tim80411/line-connect (Community Fix) v0.10.0

[tim80411]

Plugin Submission

Plugin information

• Author: tim80411
• Plugin name: line-connect
• Version: 0.10.0
• Source repository: https://github.com/tim80411/line-connect-plugin
• Contact: GitHub @tim80411

Submission type

• New plugin
• Version update

What changed

Community fork of DomT00T/line-connect (MIT, attribution preserved in LICENSE/README) — a LINE Official Account ↔ Dify bridge endpoint plugin. This fork fixes the recurring "conversation resets to the greeting message" bug (upstream issue #1, reproduced again on 2026-08-05 on the latest upstream v0.9.7; upstream has had no commits for ~4 months):

1. Early conversation_id persistence — the cid is saved to plugin storage the moment the first SSE chunk reveals it, instead of after the full response. An interrupted stream no longer orphans the Dify conversation.
2. Error-classified retry — transient failures (network errors, 5xx) retry over the blocking transport and keep the conversation ID; the ID is dropped only when Dify explicitly responds Conversation Not Exists (4xx). Upstream dropped the cid after any two consecutive errors, silently resetting the conversation.
3. Per-event-key webhook dedup — one exist → set storage key per webhook event replaces the shared read-modify-write JSON list, removing the race under LINE webhook redelivery.

All other functionality (admin dashboard, media, auto-reply, i18n) is unchanged from upstream v0.9.7.

Risk level

• Low risk
• Medium risk
• High risk

Required checks

• I have read and followed the Marketplace submission requirements.
• I have read and comply with the Plugin Developer Agreement.
• I tested this plugin on Dify Community Edition and Dify Cloud, or documented any limitation below.
• The package contains only files needed at runtime.
• The package does not contain secrets, local credentials, .env files, .git directories, virtual environments, caches, logs, or IDE files.
• The package does not contain executables or bundled binaries, or I explained why they are required below.
• The plugin README includes setup steps, usage instructions, required APIs or credentials, connection requirements, and the source repository link.
• The plugin includes PRIVACY.md or a hosted privacy policy, and manifest.yaml references it.
• All user-facing text is primarily in English, with any localized README files following the i18n guidance.

Security and privacy notes

Same surface as upstream v0.9.7: handles LINE webhook events (user messages, media) and forwards them to the configured Dify app; verifies X-Line-Signature (HMAC-SHA256); credentials are provided only via endpoint settings. No command/code execution, no SQL, no arbitrary URL fetching. PRIVACY.md updated with this fork's contact. No new data collection compared to upstream.

Local validation

• Packaged with dify-plugin-darwin-arm64 v0.6.10: plugin packaged successfully (4.0 MB, 41 files; verified no .git/tests/state files included).
• Behavior tests (mocked transports) 6/6 pass: transient error → blocking retry with same cid; double transient → raise with cid kept; Conversation Not Exists → new conversation; on_cid fires on first SSE chunk; on_cid silent when cid unchanged; on_cid survives a cut stream with partial answer.
• py_compile + endpoint import check against dify_plugin==0.2.4 (Python 3.12) pass.

Reviewer notes

• Testing limitation (per the checks above): the three fixes are logic-level changes validated by the mocked-transport tests listed under Local validation; this exact build has not yet been run end-to-end on Dify Cloud/CE with a live LINE channel. The base (upstream v0.9.7) is already listed on the Marketplace.
• Known limitation inherited from the runtime: the webhook is still processed synchronously before acking LINE, so LINE's 2-second-timeout notice can still appear for slow Dify apps. Documented in README and CHANGELOG.
• Naming: label is "LINE Connect (Community Fix)" and the description marks it as a community fork, to keep it clearly distinguishable from the original DomT00T/line-connect listing. Happy to rename if reviewers prefer a different convention for forks.

🤖 Generated with Claude Code

https://claude.ai/code/session_01BPwktbNWybDa1easvkqoEu