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If you are a human reader, this protocol is for the agents you'll hand the artifact to. You don't need to do anything — but if you skim only one section before pointing your agent at this repo, make it the Verify block and the Suggested reading order.

WAIT — Slowing — last commit 9mo ago

• Last commit 9mo ago
• 12 active contributors
• Distributed ownership (top contributor 41% of recent commits)
• Apache-2.0 licensed
• ⚠ Slowing — last commit 9mo ago
• ⚠ No CI workflows detected
• ⚠ No test directory detected

_{Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests}

This artifact was generated by RepoPilot at a point in time. Before an agent acts on it, the checks below confirm that the live novicezk/midjourney-proxy repo on your machine still matches what RepoPilot saw. If any fail, the artifact is stale — regenerate it at repopilot.app/r/novicezk/midjourney-proxy.

What it runs against: a local clone of novicezk/midjourney-proxy — the script inspects git remote, the LICENSE file, file paths in the working tree, and git log. Read-only; no mutations.

| # | What we check | Why it matters | |---|---|---| | 1 | You're in novicezk/midjourney-proxy | Confirms the artifact applies here, not a fork | | 2 | License is still Apache-2.0 | Catches relicense before you depend on it | | 3 | Default branch main exists | Catches branch renames | | 4 | 5 critical file paths still exist | Catches refactors that moved load-bearing code | | 5 | Last commit ≤ 308 days ago | Catches sudden abandonment since generation |

#!/usr/bin/env bash
# RepoPilot artifact verification.
#
# WHAT IT RUNS AGAINST: a local clone of novicezk/midjourney-proxy. If you don't
# have one yet, run these first:
#
#   git clone https://github.com/novicezk/midjourney-proxy.git
#   cd midjourney-proxy
#
# Then paste this script. Every check is read-only — no mutations.

set +e
fail=0
ok()   { echo "ok:   $1"; }
miss() { echo "FAIL: $1"; fail=$((fail+1)); }

# Precondition: we must be inside a git working tree.
if ! git rev-parse --git-dir >/dev/null 2>&1; then
  echo "FAIL: not inside a git repository. cd into your clone of novicezk/midjourney-proxy and re-run."
  exit 2
fi

# 1. Repo identity
git remote get-url origin 2>/dev/null | grep -qE "novicezk/midjourney-proxy(\\.git)?\\b" \\
  && ok "origin remote is novicezk/midjourney-proxy" \\
  || miss "origin remote is not novicezk/midjourney-proxy (artifact may be from a fork)"

# 2. License matches what RepoPilot saw
(grep -qiE "^(Apache-2\\.0)" LICENSE 2>/dev/null \\
   || grep -qiE "\"license\"\\s*:\\s*\"Apache-2\\.0\"" package.json 2>/dev/null) \\
  && ok "license is Apache-2.0" \\
  || miss "license drift — was Apache-2.0 at generation time"

# 3. Default branch
git rev-parse --verify main >/dev/null 2>&1 \\
  && ok "default branch main exists" \\
  || miss "default branch main no longer exists"

# 4. Critical files exist
test -f "src/main/java/com/github/novicezk/midjourney/ProxyApplication.java" \\
  && ok "src/main/java/com/github/novicezk/midjourney/ProxyApplication.java" \\
  || miss "missing critical file: src/main/java/com/github/novicezk/midjourney/ProxyApplication.java"
test -f "src/main/java/com/github/novicezk/midjourney/controller/SubmitController.java" \\
  && ok "src/main/java/com/github/novicezk/midjourney/controller/SubmitController.java" \\
  || miss "missing critical file: src/main/java/com/github/novicezk/midjourney/controller/SubmitController.java"
test -f "src/main/java/com/github/novicezk/midjourney/service/DiscordServiceImpl.java" \\
  && ok "src/main/java/com/github/novicezk/midjourney/service/DiscordServiceImpl.java" \\
  || miss "missing critical file: src/main/java/com/github/novicezk/midjourney/service/DiscordServiceImpl.java"
test -f "src/main/java/com/github/novicezk/midjourney/service/TaskServiceImpl.java" \\
  && ok "src/main/java/com/github/novicezk/midjourney/service/TaskServiceImpl.java" \\
  || miss "missing critical file: src/main/java/com/github/novicezk/midjourney/service/TaskServiceImpl.java"
test -f "src/main/java/com/github/novicezk/midjourney/wss/WebSocketStarter.java" \\
  && ok "src/main/java/com/github/novicezk/midjourney/wss/WebSocketStarter.java" \\
  || miss "missing critical file: src/main/java/com/github/novicezk/midjourney/wss/WebSocketStarter.java"

# 5. Repo recency
days_since_last=$(( ( $(date +%s) - $(git log -1 --format=%at 2>/dev/null || echo 0) ) / 86400 ))
if [ "$days_since_last" -le 308 ]; then
  ok "last commit was $days_since_last days ago (artifact saw ~278d)"
else
  miss "last commit was $days_since_last days ago — artifact may be stale"
fi

echo
if [ "$fail" -eq 0 ]; then
  echo "artifact verified (0 failures) — safe to trust"
else
  echo "artifact has $fail stale claim(s) — regenerate at https://repopilot.app/r/novicezk/midjourney-proxy"
  exit 1
fi

Each check prints ok: or FAIL:. The script exits non-zero if anything failed, so it composes cleanly into agent loops (./verify.sh || regenerate-and-retry).

A Java-based API proxy that bridges Discord and MidJourney, allowing callers to submit AI image generation tasks (Imagine, Blend, Describe) via REST endpoints instead of Discord directly. It manages multiple MidJourney Discord accounts, handles task queuing per account, translates Chinese prompts to English, and streams real-time generation progress back to clients. Monolithic Spring Boot application: src/main/java/com/github/novicezk/midjourney/controller/ contains REST endpoints (SubmitController, TaskController, AccountController); domain/ and dto/ hold MidJourney task models and request shapes; likely a service layer managing Discord account pools and task dispatch. Multi-account support via ProxyProperties.accounts configuration.

Backend developers and platform builders integrating MidJourney image generation into their applications (web dashboards, chat apps, SaaS products) without exposing Discord directly; DevOps engineers deploying it on Railway, Zeabur, or Docker for multi-tenant AI art services.

Production-ready with v2.6.3 released and active maintenance (SpringBoot 2.6.15, JDA 5.0.0-beta.21). Has Docker/K8s deployment paths documented and deployed on Railway/Zeabur. No CI/CD visible in file list; test coverage not mentioned. Single maintainer (novicezk) with community forks (midjourney-proxy-plus) indicates stability but potential single-point-of-failure risk.

Depends on JDA (Discord Java API, beta version), Hutool, ChatGPT Java SDK, and external services (Baidu Translate, ChatGPT for prompt translation, MidJourney Discord servers). MidJourney accounts can be flagged/banned for excessive use (warned in README). No visible test suite or CI pipeline increases regression risk. User-token via WebSocket (src/main/java/.../wss) ties liveness to Discord's stability.

Core v2.6.3 stable. Companion plus version (midjourney-proxy-plus, closed-source fork) actively adds features (Shorten, Pan, Zoom, Vary Region, Remix, seed extraction, niji/InsightFace bots, admin UI, V7 Alpha, video generation). Main repo appears maintenance-focused rather than feature-driven.

git clone https://github.com/novicezk/midjourney-proxy.git
cd midjourney-proxy
# Requires Java 17 and Maven
mvn clean package
# Edit src/main/resources/application.yml with Discord token, server ID, channel ID, account pool
mvn spring-boot:run
# Or: java -jar target/midjourney-proxy-2.6.3.jar

Daily commands:

# Dev: Edit src/main/resources/application.yml, then run main from ProxyApplication.java
# Or: mvn spring-boot:run
# Prod Docker: docker build -t midjourney-proxy . && docker run -e MJ_ACCOUNTS='...' midjourney-proxy
# Config via ENV or application.yml: mj.accounts, mj.api-secret, mj.task-store.type (in_memory or redis), mj.translate-way (baidu|gpt)

• src/main/java/com/github/novicezk/midjourney/ProxyApplication.java — Spring Boot application entry point; essential for understanding how the proxy initializes and integrates all components.
• src/main/java/com/github/novicezk/midjourney/controller/SubmitController.java — Primary API endpoint controller handling imagine, blend, describe, and task submission requests; the main surface for external integrations.
• src/main/java/com/github/novicezk/midjourney/service/DiscordServiceImpl.java — Core Discord integration layer that communicates with MidJourney via Discord; handles message sending, WebSocket connections, and Discord API calls.
• src/main/java/com/github/novicezk/midjourney/service/TaskServiceImpl.java — Central task orchestration service managing task lifecycle, progress tracking, and result aggregation from Discord responses.
• src/main/java/com/github/novicezk/midjourney/wss/WebSocketStarter.java — WebSocket client initialization for real-time Discord message streaming; critical for task status updates and error notifications.
• src/main/java/com/github/novicezk/midjourney/loadbalancer/DiscordLoadBalancer.java — Multi-account load balancing strategy; distributes API requests across multiple Discord accounts to prevent rate limiting and improve throughput.
• src/main/java/com/github/novicezk/midjourney/support/Task.java — Task domain object representing the complete lifecycle of a MidJourney request; central data structure for tracking state and progress.

Add a New API Endpoint for Task Submission

1. Create a new DTO class in src/main/java/com/github/novicezk/midjourney/dto/ extending BaseSubmitDTO (src/main/java/com/github/novicezk/midjourney/dto/BaseSubmitDTO.java)
2. Add a new @PostMapping method in SubmitController that accepts your DTO (src/main/java/com/github/novicezk/midjourney/controller/SubmitController.java)
3. Implement task creation logic in TaskServiceImpl.submitTask() to handle your new action type (src/main/java/com/github/novicezk/midjourney/service/TaskServiceImpl.java)
4. Add corresponding Discord message sending logic in DiscordServiceImpl (src/main/java/com/github/novicezk/midjourney/service/DiscordServiceImpl.java)

Add Support for a New Task Action Type

1. Add new action constant to TaskAction enum (src/main/java/com/github/novicezk/midjourney/enums/TaskAction.java)
2. Add new status constants to TaskStatus enum if needed (src/main/java/com/github/novicezk/midjourney/enums/TaskStatus.java)
3. Update Task domain object if new state fields are required (src/main/java/com/github/novicezk/midjourney/support/Task.java)
4. Implement action handling in DiscordServiceImpl.sendMsg() with conditional logic for your action (src/main/java/com/github/novicezk/midjourney/service/DiscordServiceImpl.java)
5. Add message parsing logic in ContentParseData to extract results from Discord responses (src/main/java/com/github/novicezk/midjourney/util/ContentParseData.java)

Implement a Custom Load Balancing Rule

1. Create new rule class implementing IRule interface (src/main/java/com/github/novicezk/midjourney/loadbalancer/rule/IRule.java)
2. Implement choose() method with your balancing logic using DiscordInstance list (src/main/java/com/github/novicezk/midjourney/loadbalancer/rule/BestWaitIdleRule.java)
3. Update DiscordLoadBalancer to register and use your rule in selectInstance() (src/main/java/com/github/novicezk/midjourney/loadbalancer/DiscordLoadBalancer.java)
4. Add configuration property in ProxyProperties to enable/configure your rule (src/main/java/com/github/novicezk/midjourney/ProxyProperties.java)

Add a New Translation Service Provider

1. Create new class implementing TranslateService interface in src/main/java/com/github/novicezk/midjourney/service/translate/ (src/main/java/com/github/novicezk/midjourney/service/TranslateService.java)
2. Implement translate() method with your provider's API logic (e.g., add to BaiduTranslateServiceImpl pattern) (src/main/java/com/github/novicezk/midjourney/service/translate/BaiduTranslateServiceImpl.java)
3. Add configuration properties to ProxyProperties for your provider's credentials (src/main/java/com/github/novicezk/midjourney/ProxyProperties.java)
4. Register conditional bean in configuration to select correct implementation based on property (src/main/java/com/github/novicezk/midjourney/ProxyApplication.java)

Discord token & IDs required: application.yml or MJ_ACCOUNTS env var must contain valid user-token (not bot token), server_id, channel_id, or all endpoints fail silently. Account flagging: MidJourney aggressively flags accounts for excess use or violations (README warns this); no built-in rate limiting visible. WebSocket stability: User-token WSS connection (mentioned in README) can drop, breaking progress tracking; no auto-reconnect visible in file list. Redis optional but easy to miss: task-store defaults to in-memory (data lost on restart); docs recommend Redis for production but setup not scripted. Prompt translation: Baidu/GPT APIs require additional API keys and are off by default; failures silently degrade to untranslated English. Java 17 hard requirement: Won't compile with Java 11 or 16 due to pom.xml maven.compiler.target property.

• Discord Bot/User Token Authentication — This proxy uses user-token (not bot-token) WSS connections to MidJourney Discord servers; understanding token types, scopes, and rate limits is critical for debugging account auth failures and bans.
• Task Queue & Account Pooling — The proxy manages multiple Discord accounts as a pool (ProxyProperties.accounts) and likely dispatches tasks to each account's private queue; understanding queue depth, timeout, and fairness is essential for tuning throughput.
• WebSocket Server-Sent Events (SSE) / Long Polling — Real-time progress tracking (README feature: 'support for real-time task progress') requires either WebSocket or polling from TaskController; understanding which pattern is used affects client implementation and latency.
• Prompt Injection & Sensitive Word Filtering — README mentions 'prompt sensitive word pre-detection'; the proxy likely maintains a blacklist to prevent abuse before sending to MidJourney, reducing account flags; understanding filter evasion helps secure deployments.
• Multi-Tenant Task Isolation — Each account can have 'corresponding task queue' (README); callers are isolated per account; understanding task ownership and cleanup (mj.task-store.timeout: 30 days default) prevents cross-tenant leaks.
• Async Image Processing with Base64 Encoding — Imagine endpoint accepts base64-encoded images as '垫图' (underlay/reference); understanding base64 size limits, MIME type validation, and Discord upload constraints is critical for file handling.
• Rate Limiting & Account Health Monitoring — MidJourney aggressively flags accounts (README warns 'frequent drawing behavior may trigger warnings'); the proxy should track error rates, backoff, and account rotation per the 'multi-account' feature.

• litter-coder/midjourney-proxy-plus — Official closed-source fork with advanced features (Shorten, Pan, Zoom, Vary Region, Remix, V7 Alpha, video) and admin UI; de-facto reference for extended functionality
• novicezk/wechat-midjourney — Author's companion project using this proxy to bridge WeChat clients to MidJourney; reference example of embedding this proxy as a backend
• Dooy/chatgpt-web-midjourney-proxy — Production web UI frontend integrating this proxy with ChatGPT and TTS; shows real-world consumption pattern of the API
• Deeptrain-Community/chatnio — Aggregator platform embedding this proxy alongside ChatGPT/OpenAI models; demonstrates how to unify multiple AI service APIs under one SDK
• discord-jda/JDA — Upstream Discord Java API library (v5.0 beta) that this proxy depends on; needed to understand Discord account lifecycle and WebSocket behavior

To work on one of these in Claude Code or Cursor, paste: Implement the "<title>" PR idea from CLAUDE.md, working through the checklist as the task list.

Add comprehensive unit tests for LoadBalancer rules

The repo has a loadbalancer module with BestWaitIdleRule and RoundRobinRule implementations (src/main/java/com/github/novicezk/midjourney/loadbalancer/rule/) but no visible test coverage. Given this is a critical component for distributing requests across multiple Discord accounts, unit tests would ensure reliability and prevent regressions when rules are modified.

• [ ] Create src/test/java/com/github/novicezk/midjourney/loadbalancer/rule/BestWaitIdleRuleTest.java to test idle instance selection logic
• [ ] Create src/test/java/com/github/novicezk/midjourney/loadbalancer/rule/RoundRobinRuleTest.java to test sequential distribution
• [ ] Create src/test/java/com/github/novicezk/midjourney/loadbalancer/DiscordLoadBalancerTest.java to test instance selection under various conditions
• [ ] Add mock DiscordInstance objects to simulate different load states

Add integration tests for SubmitController endpoints

The SubmitController handles multiple endpoints (Imagine, Blend, Describe, etc.) that directly interact with Discord/Midjourney. Currently no test files are visible. Adding integration tests for src/main/java/com/github/novicezk/midjourney/controller/SubmitController.java would validate request handling, payload validation, and error responses.

• [ ] Create src/test/java/com/github/novicezk/midjourney/controller/SubmitControllerTest.java with MockMvc
• [ ] Add test cases for SubmitImagineDTO, SubmitBlendDTO, SubmitDescribeDTO endpoint validation
• [ ] Test error handling for invalid payloads and account selection failures
• [ ] Validate response structure matches API documentation in docs/api.md

Add GitHub Actions CI/CD workflow for multi-version Java build and Docker image push

The repo has a Dockerfile and docker build scripts (docker/build-image.sh, docker/build-manifest.sh) but no automated CI workflow. Given the Java 17 requirement and multi-platform Docker support, adding a GitHub Actions workflow would automate testing, building, and releasing new versions on tag pushes.

• [ ] Create .github/workflows/build-and-release.yml that runs on tag creation (v*)
• [ ] Add Maven test and build steps for Java 17 compilation
• [ ] Integrate Docker buildx to build multi-architecture images (amd64, arm64)
• [ ] Push images to Docker Hub or GitHub Container Registry on release tags
• [ ] Add workflow to run existing/new unit tests on every PR to src/main/java

• Add integration tests for SubmitController endpoints (Imagine, Blend, Describe) mocking JDA Discord interactions; currently no test files visible in structure, making regressions risky.
• Document the complete account pool configuration schema in docs/config.md with runnable YAML examples for multi-account setup; README mentions 'see docs/config.md' but file content not provided.
• Implement auto-reconnect logic for WebSocket user-token connections; README states WSS is used for error messages but no reconnect strategy visible, causing silent task progress hangs.
• Add Prometheus metrics for task queue depth, success/failure rates per account, and Discord API latency; currently no observability in build, making production debugging hard.
• Create a docker-compose.yml template with Redis + application stack for local dev; current Dockerfile and docker-start.md only document single-container, not the recommended Redis backend setup.

• High · Outdated Spring Boot Version — pom.xml - parent version 2.6.15. The project uses Spring Boot 2.6.15, which is an older version with known security vulnerabilities. Spring Boot 2.6.x has reached end-of-life and no longer receives security updates. Current stable versions (3.x) provide significantly better security patches. Fix: Upgrade to Spring Boot 3.1+ or latest 2.7.x patch version. Evaluate and test compatibility with Java 17 which is already being used.
• High · JDA Library at Beta Version — pom.xml - jda.version 5.0.0-beta.21. The project uses JDA 5.0.0-beta.21, which is a beta/pre-release version. Beta software may contain unpatched security vulnerabilities and is not recommended for production use. Fix: Upgrade to the latest stable release of JDA (5.0.0 or newer stable version) once available. Beta versions should not be used in production.
• High · Disabled JMX Authentication — Dockerfile - JAVA_OPTS environment variable. The Dockerfile explicitly disables JMX authentication with -Dcom.sun.management.jmxremote.authenticate=false. This allows unauthenticated remote access to JMX port 9876, enabling attackers to invoke arbitrary methods and gain code execution. Fix: Enable JMX authentication by setting -Dcom.sun.management.jmxremote.authenticate=true and configure proper credentials via a password file. Only expose JMX port 9876 to trusted networks.
• High · JMX Port Exposed Without Network Restriction — Dockerfile - EXPOSE 9876. Port 9876 (JMX) is exposed via EXPOSE instruction without any network segmentation. Combined with disabled authentication, this creates a critical remote code execution vulnerability. Fix: Do not expose JMX port to untrusted networks. Use firewall rules or Kubernetes network policies to restrict access to localhost or internal networks only. Remove from EXPOSE if not needed.
• High · Disabled JMX SSL — Dockerfile - JAVA_OPTS environment variable. JMX communication is configured without SSL/TLS encryption (-Dcom.sun.management.jmxremote.ssl=false), allowing man-in-the-middle attacks on JMX communications. Fix: Enable JMX SSL by setting -Dcom.sun.management.jmxremote.ssl=true and configure proper SSL certificates and keystore.
• Medium · Potentially Outdated Dependencies — pom.xml - dependency versions. Several dependencies show signs of age and should be verified for security updates: hutool (5.8.26), org-json (20240303), and httpclient (4.5.14). While not immediately vulnerable, these should be checked against known CVE databases. Fix: Run mvn dependency-check or use OWASP Dependency-Check to identify known vulnerabilities. Update to latest patch versions of all dependencies, especially httpclient which has a history of security issues.
• Medium · API Authentication via Interceptor — src/main/java/com/github/novicezk/midjourney/support/ApiAuthorizeInterceptor.java. The project uses ApiAuthorizeInterceptor.java for API authentication. Without visibility into implementation, there's risk of weak token validation, missing CORS headers, or insufficient rate limiting. Fix: Verify that the interceptor: implements proper JWT/token validation, includes secure token storage practices, enforces HTTPS-only transmission, implements rate limiting, and validates all user inputs.
• Medium · Discord Token Exposure Risk — src/main/java/com/github/novicezk/midjourney/domain/DiscordAccount.java. The application manages Discord accounts and credentials (DiscordAccount.java). Tokens and sensitive credentials must not be logged, cached insecurely, or transmitted over unencrypted channels. Fix: Ensure Discord tokens are: never logged or dumped in error messages, stored encrypted at rest, transmitted only over HTTPS, and handled with secure memory practices (clear sensitive

LLM-derived; treat as a starting point, not a security audit.

• Open issues — current backlog
• Recent PRs — what's actively shipping
• Source on GitHub

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