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mattbnz
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Feb 20, 2026
mattbnz
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- Improve logging and lockdown features (Improve logging and lockdown features superfly/tokenizer#31)
- support sealing an arbitrary json tokenizer secret from the command line (support sealing an arbitrary json tokenizer secret from the command line superfly/tokenizer#32)
- bump the golang docker image used to build to match go.mod (bump the golang docker image used to build to match go.mod superfly/tokenizer#33)
- Support running tokenizer without a flysrc parser. (Support running tokenizer without a flysrc parser. superfly/tokenizer#37)
- Add body injection support for Vanta token revocation (Add body injection support for Vanta token revocation superfly/tokenizer#38)
- build: upgrade to MKMBA go standard (1.25) and bump deps
* Customize tokenizer for my own use as a somewhat open tokenizer proxy. Require fly src be present when REQUIRE_FLY_SRC=true. * increase logging and include a tool for specific type of token sealing. * strip hazmat from processors too * reject fly-src when it doesnt come from fly-proxy's netblock. * allow fly-src from 127.0.0.1/16 in test cases. * add a quickstart doc from my notes, and apply a small fix. * remove TODO * include a flag to print the seal key * get rid of flysrc internal library and instead use public superfly/flysrc-go library. Since the flysrc parser used to be static, we now have to pass in a context to the authorizers so they can get the flysrc parser instance that was constructed for the tokenizer instance. * bump dep version * fix dockerfile for latest changes
…ine (superfly#32) * support sealing an arbitrary json tokenizer secret from the command line * update golang version and crypto library to appease vuln scan checks
Earlier merge updated go.mod's golang version, but not the Dockerfile. This fixes the dockerfile so it can build again.
- Add `NO_FLY_SRC=true` env variable option for skipping the flysrc parser. - Allow the tokenizer to be built without a flysrc parser, unless configured to require fly src. - Allow the fly src authorizer to run without panicking when there is no flysrc parser. It just returns authorization failures for everything.
* Add body injection support for Vanta token revocation Implemented InjectBodyProcessor and OAuthBodyProcessor to support delimiter-based token replacement in request bodies. This enables Vanta's suspend API to receive the unsealed OAuth token in the request body without exposing it in the ui-ex application. Features: - ParamDelimiter support for specifying custom placeholders - InjectBodyProcessorConfig for generic body injection - OAuthBodyProcessorConfig for OAuth-specific body injection - Automatic Content-Length header updates after replacement Required for Vanta integration disconnect flow in ui-ex. * Replace 'delimiter' with 'placeholder' and use streaming replacement Addressing PR review feedback: - Rename 'delimiter' to 'placeholder' throughout codebase for clarity - Use github.com/icholy/replace for streaming replacement instead of io.ReadAll - Prevents memory exhaustion on large request bodies - Add comprehensive test cases for body injection processors Changes: - Update ParamDelimiter constant to ParamPlaceholder - Convert InjectBodyProcessorConfig to use streaming replace.Chain() - Convert OAuthProcessorConfig body injection to use streaming - Convert OAuthBodyProcessorConfig to use streaming - Add dependency on github.com/icholy/replace v0.6.0 - Add test coverage for: - Simple and multiple placeholder replacements - Custom placeholders from params and config - Large bodies (50KB+) with streaming - OAuth access and refresh tokens - Nil/empty bodies * Add header/body cross-checks to OAuth processor tests Enhance test coverage to verify mutual exclusivity of header and body injection: - Body injection: verify Authorization header is NOT set - Header injection: verify body is NOT modified This ensures the dual-mode behavior of OAuthProcessorConfig works correctly: - With placeholder param → only body is modified - Without placeholder param → only Authorization header is set * Use chunked transfer encoding for streaming body replacement Switch from buffering entire request bodies to using chunked transfer encoding (ContentLength = 0) when performing token replacement. This eliminates memory overhead for large request bodies by streaming through the replace.Chain without needing to calculate content length upfront. Updated processors: - InjectBodyProcessorConfig.Processor() - OAuthBodyProcessorConfig.Processor() - OAuthProcessorConfig.Processor() (when placeholder provided) Removed unused MaxBodySizeForInjection constant.
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February 20, 2026 08:41
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