chore: migrate egg-cors into monorepo - #6048
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Included review availability: Your plan provides up to 10 included reviews per hour; 6 remain after this review. 📝 WalkthroughWalkthroughThe PR migrates the CORS plugin into ChangesCORS plugin
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🟡 Moderate · up to The package can reflect any requesting origin when the Security plugin is not enabled; combined with credentialed CORS, this could expose authenticated responses to arbitrary websites across the application. Merge should wait for fail-closed behavior, an explicit origin policy requirement, or documented owner acceptance of this bounded security risk. Sequence Diagram(s)sequenceDiagram
participant EggApplication
participant AppBoot
participant Security
participant corsMiddleware
EggApplication->>AppBoot: configWillLoad()
AppBoot->>EggApplication: prepend cors to coreMiddleware
AppBoot->>Security: isSafeDomain(hostname or origin)
EggApplication->>corsMiddleware: process request Origin
corsMiddleware-->>EggApplication: CORS response headers
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Linked Issues checkExplanation The changes satisfy the coding objectives in issue Full details: Docstring CoverageExplanation Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 19 files. (1 skipped: 1 unsupported.)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@plugins/cors/package.json`:
- Line 56: Move `@types/koa__cors` from devDependencies to dependencies in
package.json, keeping its existing catalog version and ensuring CorsConfig’s
published declarations resolve for consumers.
In `@plugins/cors/src/app.ts`:
- Line 13: Update the coreMiddleware handling around the cors registration to
remove any existing cors entry before inserting it at the front, ensuring
exactly one cors middleware remains and avoiding the loader’s redefinition
error.
In `@plugins/cors/src/index.ts`:
- Line 13: Update the CORS fallback used when the security dependency is
unavailable so config.cors.credentials never causes arbitrary request Origin
values to be reflected; return an empty origin or require an explicit custom
origin handler unless the origin passes allowlist validation. Add a regression
test covering Origin https://evil.example with security disabled or omitted.
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📒 Files selected for processing (32)
plugins/cors/LICENSEplugins/cors/README.mdplugins/cors/package.jsonplugins/cors/src/app.tsplugins/cors/src/app/middleware/cors.tsplugins/cors/src/config/config.default.tsplugins/cors/src/index.tsplugins/cors/src/types.tsplugins/cors/test/cors.test.tsplugins/cors/test/fixtures/apps/cors-origin-function/app/router.jsplugins/cors/test/fixtures/apps/cors-origin-function/config/config.default.jsplugins/cors/test/fixtures/apps/cors-origin-function/config/plugin.jsplugins/cors/test/fixtures/apps/cors-origin-function/package.jsonplugins/cors/test/fixtures/apps/cors-origin/app/router.jsplugins/cors/test/fixtures/apps/cors-origin/config/config.default.jsplugins/cors/test/fixtures/apps/cors-origin/config/plugin.jsplugins/cors/test/fixtures/apps/cors-origin/package.jsonplugins/cors/test/fixtures/apps/cors-private-network/app/router.jsplugins/cors/test/fixtures/apps/cors-private-network/config/config.default.jsplugins/cors/test/fixtures/apps/cors-private-network/config/plugin.jsplugins/cors/test/fixtures/apps/cors-private-network/package.jsonplugins/cors/test/fixtures/apps/cors/app/router.jsplugins/cors/test/fixtures/apps/cors/config/config.default.jsplugins/cors/test/fixtures/apps/cors/config/plugin.jsplugins/cors/test/fixtures/apps/cors/package.jsonplugins/cors/tsconfig.jsonplugins/cors/vitest.config.tspnpm-workspace.yamltsconfig.jsonwiki/index.mdwiki/log.mdwiki/packages/cors.md
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Summary
Closes #5799
Validation
The repository-wide TypeScript check still reports the existing tegg/plugin/orm AbstractDriver.DataType and unused @ts-expect-error errors; the new CORS files do not add type errors.
Summary by CodeRabbit
New Features
@eggjs/corsplugin for configurable Cross-Origin Resource Sharing.Documentation
Tests