Add ADetailer support to server image generation

[losewayy]

Summary

sd-server now applies ADetailer to generated images when --ad-model is configured.

Image generation request
  OpenAI-compatible / SDAPI / native async
    generate images
    if --ad-model is set
      detect objects and run cropped inpainting
      return detailed images
    report an error if detection or inpainting fails

Evidence

• Before: Server image-generation routes did not run ADetailer after generation.
• After: Windows Release builds of sd-server and sd-cli succeeded. With CPU SD1.5 and a YOLOv8 face detector, ADetailer succeeded through OpenAI-compatible, SDAPI txt2img/img2img, and native async requests; multi-output img2img was also checked. An invalid detector path returned HTTP 500.

Merge Danger

Door: Two-way

The change can be reverted. Requests without --ad-model bypass the new processing.

Blast Radius: Server

Related Issue / Discussion

Closes #2087.

Additional Information

The detector context is created per request, matching the existing CLI approach; high request volumes may repeat detector loading. When --ad-model is enabled, detector initialization or inpainting failure fails the request even if base image generation succeeded.

Checklist

• I have read and confirmed this PR follows the contribution guidelines.

Summary by CodeRabbit

• New Features
  • Server-side ADetailer now processes generated images from OpenAI-compatible, SDAPI, and native asynchronous requests when configured. If detection finds nothing, the original image is returned; if initialization or detail processing fails, the request reports an error.
• Documentation
  • Clarified how object detection differs between sd-cli and sd-server, and documented which server requests use ADetailer and how failures are handled.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 775584e0-e221-4945-8be9-c75b5acb2266

📥 Commits

Reviewing files that changed from the base of the PR and between d514cef and 7ba6852.

📒 Files selected for processing: 1

• examples/server/runtime.cpp

🚧 Files skipped from review as they are similar to previous changes: 1

• examples/server/runtime.cpp

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📝 Walkthrough

The server now applies configured ADetailer processing to generated images in synchronous and asynchronous generation paths. Processing failures return errors. The documentation describes supported server APIs and processing behavior.

Changes: Server ADetailer integration

Layer / File(s)	Summary
ADetailer processing contract and implementation examples/server/runtime.h, examples/server/runtime.cpp	The server declares and implements apply_server_adetailer. It skips processing when no model is configured; otherwise, it processes each non-null result and replaces the original image with the first returned detailed image.
Generation-path integration and documented behavior examples/server/routes_openai.cpp, examples/server/routes_sdapi.cpp, examples/server/async_jobs.cpp, docs/adetailer.md	The three generation paths call ADetailer for nonempty results. Processing failures return errors. The documentation describes supported APIs and states that no detections leave the original image unchanged.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant Request
  participant execute_sync_img_gen_request
  participant apply_server_adetailer
  participant ADetailerContext
  Request->>execute_sync_img_gen_request: submit image generation request
  execute_sync_img_gen_request->>apply_server_adetailer: process nonempty results
  apply_server_adetailer->>ADetailerContext: process each image
  ADetailerContext-->>apply_server_adetailer: return detailed image or failure
  apply_server_adetailer-->>execute_sync_img_gen_request: return success or failure
  execute_sync_img_gen_request-->>Request: return generated image or error

Loading

Suggested reviewers: leejet

Merge Risk: ⚪ Minimal · up to 7ba68

ADetailer processing preserves generated image dimensions, and no actionable merge-blocking issue remains from this review.

Security architecture risk: 🟡 Moderate · up to d514c

Untrusted image requests can now influence which detector file the server loads, including when processing was not enabled at startup. The default local-only listener limits exposure, but file selection is not confined to administrator-configured choices. Processing failures are otherwise contained within the affected request or job.

Retained concerns

• High · security · observed: The new server processing stage treats client-overridable ad_model as filesystem-loading authority. Native JSON and OpenAI prompt-embedded extra arguments can select a detector path independently of startup configuration. After successful base generation, that path reaches the detector loader under the server process identity, expanding the request-to-filesystem trust boundary.

Security review details

Security Blast Radius

• inferred — A client able to reach a supported image-generation route and obtain successful base generation can trigger loading of a selected detector path under the service identity. The relevant scope is the server process, its accessible filesystem and its shared generation capacity; broader tenant, host or environment compromise is not established.

Security Findings and Attack Paths

• observed — The retained path-traversal finding has a newly reachable detector-loading sink: client-controlled ad_model flows through existing parameter parsing into apply_server_adetailer and new_adetailer_ctx. The unchanged parser does not make this exposure preexisting. The verified path supports unauthorized file-selection and loading attempts, not a demonstrated response containing arbitrary file contents.

Trust Boundaries and Controls

• observed — The inspected OpenAI and native submission paths have no application authentication check before request parsing and execution or queuing. Loopback binding limits default network reachability, and detector-format checks constrain successful processing, but neither enforces administrator ownership of detector-path selection. External authentication and filesystem confinement remain unknown.

Resilience and Maintainability Implications

• observed — Async execution keeps processed images local until completion. Failure publication clears result fields under the job-manager mutex, and polling uses the same mutex. Queued cancellation removes the job and clears results; running cancellation is rejected, preserving a single owner of the active transition. These controls contain ordinary post-processing failure rather than publishing a partially completed batch.

Hardening Proposals

• proposed — Make detector-selection authority explicit: keep the detector path server-owned, or expose approved detector identifiers resolved through a confined server-side registry. Enforce the same policy after parsing every supported request format so startup disablement cannot be overridden unintentionally.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 5 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description check		The description includes the required Summary, Related Issue / Discussion, Additional Information, and Checklist sections. It provides implementation details, verification evidence, failure behavior, …
Title check		The title clearly and concisely describes the main change: adding ADetailer support to server image generation.
Linked Issues check		Issue [#2087] requires ADetailer support in sd-server when --ad-model is configured. The PR adds apply_server_adetailer, creates the ADetailer context from server settings, processes generated i…
Out of Scope Changes check		The changes remain within issue [#2087]. The runtime helper, route integration, error handling, and ADetailer documentation directly support server-side ADetailer processing. No unrelated product beha…

Full details: Description check

Explanation

The description includes the required Summary, Related Issue / Discussion, Additional Information, and Checklist sections. It provides implementation details, verification evidence, failure behavior, and scope. The contribution-guidelines checklist remains unchecked, but the description is otherwise complete.

Full details: Linked Issues check

Explanation

Issue [#2087] requires ADetailer support in sd-server when --ad-model is configured. The PR adds apply_server_adetailer, creates the ADetailer context from server settings, processes generated images, replaces each image with the detailed result, and reports processing failures. The OpenAI-compatible, SDAPI, and native asynchronous generation paths call the helper. Requests without an ADetailer model bypass processing. The issue has no separate automated-test requirement. The PR evidence reports coverage for the supported request paths and failure handling.

Full details: Out of Scope Changes check

Explanation

The changes remain within issue [#2087]. The runtime helper, route integration, error handling, and ADetailer documentation directly support server-side ADetailer processing. No unrelated product behavior or unrelated files appear in the reviewed change summary.

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Actionable comments posted: 1

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🤖 Prompt to fix review comments

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Inline comments:
Review comments at @examples/server/runtime.cpp:
- Around line 22-34: Update apply_server_adetailer to use
runtime.default_gen_params->ad_model_path for both the empty-path check and the
call to new_adetailer_ctx, rather than the request-controlled
gen_params.ad_model_path; leave the remaining generation parameters unchanged.

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: Repository UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 0c21d707-6137-445d-bf51-6f24973c8d54

📥 Commits

Reviewing files that changed from the base of the PR and between b13a482 and d514cef.

📒 Files selected for processing: 6

• docs/adetailer.md
• examples/server/async_jobs.cpp
• examples/server/routes_openai.cpp
• examples/server/routes_sdapi.cpp
• examples/server/runtime.cpp
• examples/server/runtime.h

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