Adapted for OHOS

[FrankHan052176]

Summary by CodeRabbit

• Bug Fixes

  • Improved support for OHOS by aligning networking, TLS, proxy, and websocket behavior with the platform’s TLS capabilities.
  • Fixed OHOS-specific configuration storage paths and auto ID/key resolution to use the correct compiled code paths.
  • Updated fingerprinting to use a consistent placeholder address on OHOS.
  • Narrowed Linux-only logic so Linux-specific IPC/system behavior does not apply on OHOS.

• Maintenance

  • Updated cryptography dependency source and refined platform-target dependency selection for TLS/websocket support.

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR adds target_env = "ohos" conditional compilation across dependency selection, config and ID handling, fingerprinting, top-level exports, platform gating, and TLS connection paths in proxy and websocket code.

Changes

OHOS Platform Support

Layer / File(s)	Summary
Dependency selection for OHOS builds Cargo.toml	Splits TLS-related dependencies into OHOS and non-OHOS target blocks and excludes OHOS from a Linux-only dependency section.
Config paths, IPC directories, and IDs src/config.rs	Updates OHOS handling in config home/path resolution, IPC directory selection, log path logic, online-state gating, and ID generation, while excluding OHOS from Linux-only branches.
Fingerprinting, exports, and platform gates src/fingerprint.rs, src/lib.rs, src/platform/mod.rs	Zeros fingerprint addresses for OHOS, adjusts export guards and get_uuid() branch selection for OHOS, and excludes the Linux platform module from OHOS builds.
Proxy TLS dispatch and fallback src/proxy.rs	Restricts native-TLS pieces to non-OHOS targets, routes OHOS NativeTls proxy connections through rustls, and changes the OHOS fallback path to bail instead of retrying native-TLS.
Websocket TLS connector and retry gating src/websocket.rs	Builds a rustls connector on OHOS, gates native-TLS-specific code to non-OHOS, and removes invalid-certificate retry branches from OHOS builds.

Estimated code review effort: 3 (Moderate) | ~25 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title is concise and accurately reflects the main change: adapting the codebase for OHOS support.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[FrankHan052176]

OHOS is “OpenHarmonyOS”

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@Cargo.toml`:
- Line 36: Pin the forked sodiumoxide dependency in Cargo.toml by replacing the
floating branch reference with a fixed rev or tag, and if this fork is only
needed for OHOS, move the dependency entry into the OHOS target-specific section
instead of keeping it global. Locate the existing sodiumoxide dependency
declaration and update it so builds use a stable, reproducible source.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 7fecf016-447b-43f9-bf12-a4122a248b8a

📥 Commits

Reviewing files that changed from the base of the PR and between c7f49e4 and 39124f9.

📒 Files selected for processing (1)

• Cargo.toml

[FrankHan052176]

Since the upstream sodiumoxide is archived, I had to fork it to make the necessary adaptations for openharmonyos via a git link.
Here is my fork: https://github.com/FrankHan052176/sodiumoxide
To make it easier to maintain, would it be possible to move this fork directly into the rustdesk-org organization? I'm happy to transfer it if you agree.