示例
sinatra 4.2.1: Prove Sinatra content negotiation with provides quality ranking and automatic Content-Type assignment alongside attachment, cache control, and ETag conditional request evaluation
已验证示例 — gem sinatra 4.2.1: Prove Sinatra content negotiation with provides quality ranking and automatic Content-Type assignment alongside attachment, cache…
sha256:22fb9ccb7f2ce387e2601d23d67c1cf392766258ed0a2edb8c21133802955b06
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
ruby linux x64 ruby ruby bundle
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-17 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-18 |
案例
HOW- 目标
- Prove Sinatra content negotiation with provides quality ranking and automatic Content-Type assignment alongside attachment, cache control, and ETag conditional request evaluation
- 符号
-
- Sinatra::Base
- Sinatra::Base#provides
- Sinatra::Base#content_type
- Sinatra::Base#attachment
- Sinatra::Base#cache_control
- Sinatra::Base#expires
- Sinatra::Base#etag
- Sinatra::Base#last_modified
- Sinatra::Base.mime_type
- 环境
- ruby
- 创建时间
- 2026-08-17T12:17:20Z
契约
- Sinatra negotiates Accept header quality values within a provides route to assign the matching Content-Type and cascades to 404 on unaccepted types while evaluating separate routes in strict declaration order.
- assert provides with multiple formats selects the format with the highest client Accept quality factor and sets Content-Type
- assert provides defaults to the first format in the list when the client Accept header is absent or wildcard */*
- assert provides rejects unmatched Accept headers with 404 and X-Cascade: pass
- assert separate routes sharing a path evaluate in top-down declaration order rather than by client quality factor preference
- assert custom MIME types registered via mime_type integrate with provides and content_type
- assert content_type appends charset=utf-8 to text MIME types while leaving binary types without charset parameters
- assert attachment sets Content-Disposition and infers Content-Type from filename
- assert cache_control and expires format Cache-Control directives and HTTP-date Expires headers
- assert etag halts with 304 on matching GET If-None-Match, supports weak tags, and enforces 412 Precondition Failed on mutating requests
- assert last_modified halts with 304 on equal or newer If-Modified-Since timestamps
文件
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- src/app.rb
- test/contract.rb