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Repository guide · source walkthrough · v4

mitmproxy / mitmproxy · Source walkthrough

This source walkthrough outlines a static reading order for the repository across four prioritized stops plus guidance sections, from file-level landmarks to the most connected library classes and highly coupled change points.

View on GitHub ↗ Analyzed revision b506c68108e2 ↗ ← Overview
Original repository
mitmproxy/mitmproxy
License
MIT · open-source license
Analyzed revision · last verified
b506c68108e287104045333ade476d92c39c275e ·

Newer revision observed; parts of this guide may be outdated. The default branch moved to 5253dcbd1d8f, checked 2026-10-11. The whole guide describes revision b506c68108e2. A revision diff found changes in 2 code regions it cites (listed below); statements about those regions may not hold at the new revision and have not been rechecked yet.

  • mitmproxy/addonmanager.py:62-107 · lines changed
  • mitmproxy/addonmanager.py:101-107 · lines changed

mitmproxy/mitmproxy: source walkthrough | reading the source

Terms used on this page
Entrypoint record
A file the analyzer marks as a place where execution can start. When it carries a __main__ guard excerpt, the file contains an if __name__ == "__main__": block and the excerpt shows what that block calls; without an excerpt, the file was flagged by its name only.
Bounded static execution path
A call chain reconstructed from the source code without running it, stopped after a fixed number of steps. It shows how far the code can be followed on paper, not what happens at run time.
Unresolved boundary
Where a static path stops because the next call goes into an external library or cannot be resolved without running the code. It marks the edge of this analysis, not a defect in the repository.
Static relations
Calls and imports found in the source. "External or unresolved" relations point outside the analyzed files.
Module role
The analyzer's label for a file, inferred from how many calls go in and out (for example core, entry/orchestration, leaf). It describes a position in the call graph, not the authors' design.
Test-like files
Files whose names or locations look like tests. This analysis counts them; it does not run them.
Observed · inferred · author-claimed · unresolved
How each statement is supported: read directly from the analyzed files; derived by the analyzer from them; stated by the repository's authors (metadata, README); or not established by this analysis.
Verified
Two uses on these pages. In an analyzer record ("verified provenance", "a verified entrypoint") it means the record was read directly from the analyzed files, which these guides call observed; for an entrypoint, the __main__ guard text is present. Since the analyzer fix of 2026-10-04, a file that only has an entrypoint-like name such as cli.py or main.py is recorded as inferred; guides analyzed before that still call such a file verified, and it is still only a guess about how the file is used. It does not mean the code was run or tested. "Last verified" is the date the guide last passed the lab's checks against the analysis record of the stated revision; it is not a review of the repository itself.

How to Use This Walkthrough

This guided reading order organizes the repository into prioritized stops based on static analysis lessons. For repository metadata revision b506c68108e287104045333ade476d92c39c275e, cited line ranges reflect static analysis scope wherein dynamic dispatch, reflection, and runtime wiring are not resolved. Each block represents a line-addressable semantic unit determined by the analyzer, and the accompanying explanations represent automated inferences rather than execution guarantees.

Stop 1: Orientation

Orientation provides initial repository landmarks through file-level module blocks before inspecting specific function or class logic.

  • mitmproxy/version.py:1-54: module mitmproxy/version.py, file-level container for the analyzed code in mitmproxy/version.py (confidence 0.76).
  • release/build.py:1-382: module release/build.py, file-level container for the analyzed code in release/build.py (confidence 0.76).
  • release/deploy.py:1-108: module release/deploy.py, file-level container for the analyzed code in release/deploy.py (confidence 0.76).
  • release/release.py:1-216: module release/release.py, file-level container for the analyzed code in release/release.py (confidence 0.76).
  • test/filename_matching.py:1-78: module test/filename_matching.py, file-level container for the analyzed code in test/filename_matching.py, outside library code (confidence 0.90).
  • test/individual_coverage.py:1-118: module test/individual_coverage.py, file-level container for the analyzed code in test/individual_coverage.py, outside library code (confidence 0.76).

Stop 2: Execution Story

The analyzer's execution-story lesson isolates a single entrypoint guard, tracing bounded static execution paths into recording workflows.

  • docs/scripts/clirecording/record.py:5-10: main_guard __main__, direct-execution guard gating code that runs when the file is executed directly (confidence 0.99).

Five bounded execution paths originate at this guard, each terminating at an unresolved external boundary when invoking recording helpers such as screenplays.record_user_interface.

Stop 3: Core Code

Seven of the analyzer's eight core-code lesson blocks lie directly in library code. Outside library code, only one block appears: docs/scripts/clirecording/record.py:5-10, a script direct-execution guard.

According to the library reading set's selection note, modules including mitmproxy/proxy/commands.py were deterministically selected by static call degree rather than via an analyzer lesson. The four modules and their primary blocks are:

Module mitmproxy/proxy/commands.py is inferred as a leaf/data-boundary candidate with 853 incoming calls and 0 outgoing calls.

  • mitmproxy/proxy/commands.py:129-159: class Log, groups related behavior under one class boundary (confidence 0.97).
  • mitmproxy/proxy/commands.py:23-44: class Command, groups related behavior under one class boundary (confidence 0.99).

Module mitmproxy/proxy/layers/http/__init__.py is inferred as a service/core candidate with 416 incoming calls and 152 outgoing calls.

  • mitmproxy/proxy/layers/http/__init__.py:159-918: class HttpStream, groups related behavior under one class boundary (confidence 0.97).
  • mitmproxy/proxy/layers/http/__init__.py:921-1188: class HttpLayer, groups related behavior under one class boundary (confidence 0.97).

Module mitmproxy/proxy/events.py is inferred as a leaf/data-boundary candidate with 514 incoming calls and 0 outgoing calls.

  • mitmproxy/proxy/events.py:64-100: class CommandCompleted, groups related behavior under one class boundary (confidence 0.97).
  • mitmproxy/proxy/events.py:79-97: function CommandCompleted.__init_subclass__, encapsulates an operation with 6 downstream relations (confidence 0.76).

Module mitmproxy/http.py is inferred as a service/core candidate with 217 incoming calls and 71 outgoing calls.

  • mitmproxy/http.py:516-1010: class Request, groups related behavior under one class boundary (confidence 0.97).
  • mitmproxy/http.py:233-513: class Message, groups related behavior under one class boundary (confidence 0.99).

Stop 4: Where Changes Ripple

The change guide highlights blocks exhibiting dense static coupling where modifications are likely to propagate across library and test boundaries.

  • mitmproxy/contrib/wbxml/ASWBXML.py:44-813: function ASWBXML.__init__, connects to 586 downstream relations (confidence 0.76).
  • mitmproxy/contrib/wbxml/ASWBXML.py:47-813: straight_line ASWBXML.__init__, groups adjacent sequential statements as one bounded code region (confidence 0.76).
  • mitmproxy/proxy/events.py:46-55: class DataReceived, groups related behavior under one class boundary (confidence 0.97).
  • mitmproxy/proxy/commands.py:69-82: class SendData, groups related behavior under one class boundary (confidence 0.97).
  • test/mitmproxy/proxy/tutils.py:307-359: class reply, groups related behavior under one class boundary (confidence 0.97).
  • test/mitmproxy/proxy/tutils.py:405-406: function Placeholder, encapsulates an operation with 1 downstream relation (confidence 0.97).

What This Walkthrough Cannot Show

This walkthrough is bounded by static analysis. Dynamic behaviors—such as reflection, monkey-patching, dynamic dispatch, and framework runtime wiring—are not statically resolved. Build and execution inferences remain partial, and installation steps are unverified. Furthermore, semantic block summaries represent automated inferences with varying confidence, including lower-certainty parsers in web tooling.

What this analysis could not establish

The writing model's own notes on the analysis record. Identifiers such as lim_3, exec_* or claim_… name records of that analysis; the claims table cites the same records.

  • 4 file(s) inventoried but not parsed (oversized, minified or vendored); see uncertainty.skipped_files.
  • 20869 static relation(s) remain external or unresolved.
Claims and evidence — 35 claims, 35 supported by an independent verifier

Every substantive statement above is a claim bound to grounding IDs of the analyzed revision. Global grounding IDs are namespaced by the analysis run.

Claim Epistemic status Verifier Grounding (global IDs)
c1 For repository metadata revision b506c68108e287104045333ade476d92c39c275e, cited line ranges reflect static analysis scope wherein dynamic dispatch, reflection, and runtime wiring are not resolved. observed supported analysis_047cd186cb2a335b:lim_1
c2 A code block is the analyzer's line-addressable unit, and its associated explanation represents an automated static inference. inferred supported analysis_047cd186cb2a335b:block_ce72f4a6a674df
c3 The orientation begins with mitmproxy/version.py:1-54, a module block providing the file-level container for the analyzed code in that file. inferred supported analysis_047cd186cb2a335b:block_ce72f4a6a674df
c4 File release/build.py:1-382 is a module block providing the file-level container for the analyzed code in that file. inferred supported analysis_047cd186cb2a335b:block_d3d27c76e4eb0e
c5 File release/deploy.py:1-108 is a module block providing the file-level container for the analyzed code in that file. inferred supported analysis_047cd186cb2a335b:block_9ff16157481b47
c6 File release/release.py:1-216 is a module block providing the file-level container for the analyzed code in that file. inferred supported analysis_047cd186cb2a335b:block_407e8a7bd1de3f
c7 File test/filename_matching.py:1-78 is a module block providing the file-level container for the analyzed code in that file. inferred supported analysis_047cd186cb2a335b:block_0a652d6797e792
c8 File test/individual_coverage.py:1-118 is a module block providing the file-level container for the analyzed code in that file. inferred supported analysis_047cd186cb2a335b:block_7537509a3b257d
c9 The execution-story lesson centers on docs/scripts/clirecording/record.py:5-10, a main_guard block gating direct script execution. inferred supported analysis_047cd186cb2a335b:block_7e0031c9bccfc7
c10 Static path reconstruction from this guard reaches five bounded paths that terminate at external or unresolved boundaries. inferred supported analysis_047cd186cb2a335b:exec_12b531f3877d, analysis_047cd186cb2a335b:exec_f8ca272a0f5a, analysis_047cd186cb2a335b:exec_6537d444029e, analysis_047cd186cb2a335b:exec_166eee7e2659, analysis_047cd186cb2a335b:exec_941682fedfc0
c11 Seven of the analyzer's eight core-code lesson blocks lie directly in library code, with only one script guard residing outside. inferred supported analysis_047cd186cb2a335b:block_7e0031c9bccfc7, analysis_047cd186cb2a335b:block_39d4e3f8058ab4, analysis_047cd186cb2a335b:block_2f53b489174ab8, analysis_047cd186cb2a335b:block_65c7187d13404a, analysis_047cd186cb2a335b:block_6862972b289500, analysis_047cd186cb2a335b:block_12326e07b4010e, analysis_047cd186cb2a335b:block_026d8108b0e614, analysis_047cd186cb2a335b:block_22da4fe11743e8
c12 The sole non-library block in the core lesson is the script execution guard in docs/scripts/clirecording/record.py:5-10. inferred supported analysis_047cd186cb2a335b:block_7e0031c9bccfc7
c13 According to the library reading set selection note, modules including mitmproxy/proxy/commands.py were deterministically selected by static call degree rather than via an analyzer lesson. inferred supported analysis_047cd186cb2a335b:role_193
c14 Module mitmproxy/proxy/commands.py acts as a leaf/data-boundary candidate with 853 incoming calls and 0 outgoing calls. inferred supported analysis_047cd186cb2a335b:role_193
c15 Block mitmproxy/proxy/commands.py:129-159 is a class block grouping code for Log. inferred supported analysis_047cd186cb2a335b:block_75f11bbb883e70
c16 Block mitmproxy/proxy/commands.py:23-44 is a class block grouping code for Command. inferred supported analysis_047cd186cb2a335b:block_4282424f79e097
c17 Module mitmproxy/proxy/layers/http/__init__.py is inferred as a service/core candidate with 416 incoming and 152 outgoing calls. inferred supported analysis_047cd186cb2a335b:role_199
c18 Block mitmproxy/proxy/layers/http/__init__.py:159-918 is a class block defining HttpStream. inferred supported analysis_047cd186cb2a335b:block_eab6c9cf19107c
c19 Block mitmproxy/proxy/layers/http/__init__.py:921-1188 is a class block defining HttpLayer. inferred supported analysis_047cd186cb2a335b:block_77d00673b78777
c20 Module mitmproxy/proxy/events.py is inferred as a leaf/data-boundary candidate with 514 incoming and 0 outgoing calls. inferred supported analysis_047cd186cb2a335b:role_195
c21 Block mitmproxy/proxy/events.py:64-100 is a class block grouping code for CommandCompleted. inferred supported analysis_047cd186cb2a335b:block_9e75c607efb1d9
c22 Block mitmproxy/proxy/events.py:79-97 is a function block for CommandCompleted.__init_subclass__ connecting to 6 downstream relations. inferred supported analysis_047cd186cb2a335b:block_0f90f01811f90d
c23 Module mitmproxy/http.py is inferred as a service/core candidate with 217 incoming and 71 outgoing calls. inferred supported analysis_047cd186cb2a335b:role_157
c24 Block mitmproxy/http.py:516-1010 is a class block grouping code for Request. inferred supported analysis_047cd186cb2a335b:block_787e705f66ef64
c25 Block mitmproxy/http.py:233-513 is a class block grouping code for Message. inferred supported analysis_047cd186cb2a335b:block_7f6dbf97f4d745
c26 The change guide highlights blocks where the static graph exhibits dense coupling across library and test code. inferred supported analysis_047cd186cb2a335b:block_e2afb356b0d9c1, analysis_047cd186cb2a335b:block_9d2059cfae2577, analysis_047cd186cb2a335b:block_d7defd74c6be24, analysis_047cd186cb2a335b:block_1e63d02311edcd, analysis_047cd186cb2a335b:block_87df59f400a5e6, analysis_047cd186cb2a335b:block_c5f76636ae40da
c27 Function block mitmproxy/contrib/wbxml/ASWBXML.py:44-813 defines ASWBXML.__init__ and connects to 586 downstream relations. inferred supported analysis_047cd186cb2a335b:block_e2afb356b0d9c1
c28 Straight-line block mitmproxy/contrib/wbxml/ASWBXML.py:47-813 groups sequential statements inside ASWBXML.__init__. inferred supported analysis_047cd186cb2a335b:block_9d2059cfae2577
c29 Class block mitmproxy/proxy/events.py:46-55 groups code for DataReceived. inferred supported analysis_047cd186cb2a335b:block_1e63d02311edcd
c30 Class block mitmproxy/proxy/commands.py:69-82 groups code for SendData. inferred supported analysis_047cd186cb2a335b:block_87df59f400a5e6
c31 Class block test/mitmproxy/proxy/tutils.py:307-359 groups related behavior for class reply under one class boundary. inferred supported analysis_047cd186cb2a335b:block_d7defd74c6be24
c32 Test function block test/mitmproxy/proxy/tutils.py:405-406 encapsulates Placeholder with 1 downstream relation. inferred supported analysis_047cd186cb2a335b:block_c5f76636ae40da
c33 This walkthrough reflects static analysis only, leaving reflection, dynamic dispatch, and runtime wiring unresolved. observed supported analysis_047cd186cb2a335b:lim_1
c34 Build and execution inference is partial, and installation commands are not verified. observed supported analysis_047cd186cb2a335b:lim_2
c35 Block annotations carry varying analyzer confidence scores, such as 0.68 for peg$parse in web/src/js/filt/command.js:32-820. inferred supported analysis_047cd186cb2a335b:block_f259392fdc6a4f, analysis_047cd186cb2a335b:block_4f5f2c198d678b

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How this page is produced. This page was produced using revision-aware repository analysis and AI-assisted editorial tooling. Technical claims are tied to the analyzed repository revision and may be revalidated when the source repository changes.

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