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Disable content-type validation on configuration #101

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merged 2 commits into from
Feb 13, 2025
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@kingster kingster commented Feb 13, 2025

$ curl -i https://raw.githubusercontent.com/voiceip/tinyphone/HEAD/config.json
HTTP/2 200
cache-control: max-age=300
content-security-policy: default-src 'none'; style-src 'unsafe-inline'; sandbox
content-type: text/plain; charset=utf-8
etag: "a81debe6a471702516967f016104f157de78c0a244ba0eb0894239e98d30b920"
strict-transport-security: max-age=31536000
x-content-type-options: nosniff
x-frame-options: deny
x-xss-protection: 1; mode=block
x-github-request-id: E8F5:3CE267:1D898E:29C942:67ADBE9A
accept-ranges: bytes
date: Thu, 13 Feb 2025 09:53:53 GMT
via: 1.1 varnish
x-served-by: cache-maa10233-MAA
x-cache: HIT
x-cache-hits: 1
x-timer: S1739440433.061909,VS0,VE1
vary: Authorization,Accept-Encoding,Origin
access-control-allow-origin: *
cross-origin-resource-policy: cross-origin
x-fastly-request-id: b617f3a07c7d8d9fca149c6abd86f6e0e29cbb24
expires: Thu, 13 Feb 2025 09:58:53 GMT
source-age: 280
content-length: 1143

Returns content-type: text/plain; charset=utf-8

Summary by CodeRabbit

  • Refactor
    • Enhanced the stability of external configuration retrieval by refining error handling. This update improves overall system resilience when processing external data without altering visible functionality.

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coderabbitai bot commented Feb 13, 2025

Walkthrough

The changes modify the error-handling logic in the InitConfig function within the configuration module. Specifically, the function now only checks the response code when fetching configuration remotely, with the content type check being commented out. The fallback mechanism and error messages still remain, but the conditions for triggering the secondary configuration URL have been updated.

Changes

File(s) Change Summary
tinyphone/config.cpp Modified InitConfig: removed the content type validation and now relies solely on the response code for error handling in remote configuration fetch.

Sequence Diagram(s)

sequenceDiagram
    participant Init as InitConfig
    participant HTTP as HTTP Client
    note over Init: Initiate remote config fetch
    Init->>HTTP: Request config from raw.githubusercontent.com
    HTTP--)Init: Return response (status code, content type, etc.)
    alt Response code indicates success (e.g., 200)
        Init->>Init: Parse and apply configuration
    else Response code indicates error
        Init->>Init: Log error message
        Init->>HTTP: Attempt secondary configuration fetch
    end
Loading

Poem

I’m a rabbit hopping through lines of code so free,
Content type checks removed, simplifying easily.
With a thump-thump beat, I leap with glee,
Response codes guide the flow, as clear as can be.
In every bug and log, a joyful dance I see!
🐰💻 Hoppy coding for you and me!


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📒 Files selected for processing (1)
  • tinyphone/config.cpp (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
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  • GitHub Check: Build Tinyphone Windows
  • GitHub Check: Build Tinyphone Linux
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Actionable comments posted: 0

🧹 Nitpick comments (1)
tinyphone/config.cpp (1)

72-74: Document the JSON validation safeguard.

Consider adding a note in the comment about the JSON parsing validation that acts as a safeguard against invalid content.

-// Disable the content-type check. raw.githubusercontent.com doesn't return valid content-type
+// Disable the content-type check. raw.githubusercontent.com doesn't return valid content-type.
+// Security Note: JSON parsing validation still occurs later to ensure content validity.
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📥 Commits

Reviewing files that changed from the base of the PR and between 647281c and 33d3fc7.

📒 Files selected for processing (1)
  • tinyphone/config.cpp (1 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (4)
  • GitHub Check: Build Tinyphone Linux
  • GitHub Check: Build Tinyphone macOS
  • GitHub Check: Build Tinyphone Windows
  • GitHub Check: Analyze (cpp)
🔇 Additional comments (1)
tinyphone/config.cpp (1)

72-74: LGTM! The change is well-justified and maintains security.

The removal of content-type validation is safe because:

  1. The config is fetched from a trusted source (raw.githubusercontent.com).
  2. JSON parsing validation still occurs later in the code.

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@kingster kingster merged commit 28cd094 into master Feb 13, 2025
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@kingster kingster deleted the fix-config-load branch February 13, 2025 10:52
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