510 lines
10 KiB
Python
510 lines
10 KiB
Python
from __future__ import annotations
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import asyncio
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import json
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import os
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from typing import Any
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from fastapi import (
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APIRouter,
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Depends,
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Header,
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HTTPException,
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Request,
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status,
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)
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from fastapi.responses import JSONResponse
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from pydantic import BaseModel, Field
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from app.security import (
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expected_gitea_repository,
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repository_name_from_payload,
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require_search_api_key,
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require_sync_api_key,
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same_repository,
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validate_secret,
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verify_gitea_signature,
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webhook_should_pull_git,
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)
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from scripts.common import (
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DB_FILE,
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ZPWIKI_ROOT,
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)
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from scripts.rag_utils import build_rag_context
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from scripts.rebuild_index import (
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ReindexInProgressError,
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rebuild_index,
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)
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from scripts.search_utils import search_database
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router = APIRouter()
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class SearchRequest(BaseModel):
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query: str = Field(
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...,
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min_length=1,
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max_length=500,
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)
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limit: int = Field(
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default=10,
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ge=1,
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le=50,
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)
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published_only: bool = False
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max_per_document: int = Field(
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default=1,
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ge=0,
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le=10,
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)
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class RagRequest(BaseModel):
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query: str = Field(
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...,
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min_length=1,
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max_length=500,
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description=(
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"Otázka alebo vyhľadávací dotaz "
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"používateľa nad ZP Wiki."
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),
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)
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limit: int = Field(
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default=5,
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ge=1,
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le=20,
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description=(
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"Maximálny počet relevantných "
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"zdrojov pre RAG kontext."
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),
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)
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published_only: bool = Field(
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default=False,
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description=(
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"Ak je true, použijú sa iba "
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"publikované dokumenty."
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),
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)
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max_per_document: int = Field(
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default=1,
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ge=0,
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le=10,
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description=(
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"Maximálny počet chunkov z jedného "
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"dokumentu. Hodnota 1 preferuje "
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"rôzne dokumenty."
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),
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)
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class SyncRequest(BaseModel):
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pull_git: bool = Field(
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default=False,
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description=(
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"Pred reindexovaním vykoná "
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"git pull --ff-only."
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),
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)
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@router.get(
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"/health",
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include_in_schema=False,
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)
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def health() -> dict[str, Any]:
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return {
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"status": "ok",
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"database_exists": (
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DB_FILE.exists()
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),
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"database_path": str(
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DB_FILE
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),
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"search_engine": (
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"hybrid_fts5_embeddings"
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),
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"rag_enabled": True,
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"zpwiki_root": str(
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ZPWIKI_ROOT
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),
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"zpwiki_exists": (
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ZPWIKI_ROOT.exists()
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),
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"security_configured": all(
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bool(
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os.getenv(
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name,
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"",
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).strip()
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)
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for name in (
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"WEBHOOK_SECRET",
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"SYNC_API_KEY",
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"SEARCH_API_KEY",
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"EXPECTED_GITEA_REPOSITORY",
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)
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),
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}
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@router.post(
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"/rag",
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operation_id=(
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"retrieve_zpwiki_context"
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),
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summary=(
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"Vyhľadaj informácie v ZP Wiki"
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),
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description=(
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"Použi tento nástroj pri otázkach "
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"o ZP Wiki, študentoch, autoroch, "
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"záverečných prácach, témach, rokoch, "
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"projektoch alebo dokumentoch. "
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"Nástroj vykoná hybridné FTS5 a "
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"embeddingové vyhľadávanie a pripraví "
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"zdrojovo podložený RAG kontext."
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),
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dependencies=[
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Depends(
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require_search_api_key
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)
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],
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)
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def rag(
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request: RagRequest,
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) -> dict[str, Any]:
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try:
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response = build_rag_context(
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DB_FILE,
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request.query,
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limit=request.limit,
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published_only=(
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request.published_only
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),
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max_per_document=(
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request.max_per_document
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),
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)
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except FileNotFoundError as error:
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raise HTTPException(
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status_code=500,
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detail=str(
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error
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),
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) from error
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except ValueError as error:
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raise HTTPException(
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status_code=400,
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detail=str(
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error
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),
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) from error
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except RuntimeError as error:
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raise HTTPException(
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status_code=500,
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detail=str(
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error
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),
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) from error
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return response
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@router.post(
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"/search",
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dependencies=[
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Depends(
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require_search_api_key
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)
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],
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include_in_schema=False,
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)
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def search(
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request: SearchRequest,
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) -> dict[str, Any]:
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try:
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response = search_database(
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DB_FILE,
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request.query,
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request.limit,
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published_only=(
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request.published_only
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),
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max_per_document=(
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request.max_per_document
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),
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)
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except FileNotFoundError as error:
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raise HTTPException(
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status_code=500,
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detail=str(
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error
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),
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) from error
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except ValueError as error:
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raise HTTPException(
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status_code=400,
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detail=str(
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error
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),
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) from error
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except RuntimeError as error:
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raise HTTPException(
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status_code=500,
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detail=str(
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error
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),
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) from error
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results = response[
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"results"
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]
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return {
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"query": request.query,
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"engine": response[
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"engine"
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],
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"strategies": response[
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"strategies"
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],
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"count": len(
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results
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),
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"results": results,
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}
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@router.post(
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"/sync",
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dependencies=[
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Depends(
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require_sync_api_key
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)
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],
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include_in_schema=False,
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)
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def sync(
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request: SyncRequest,
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) -> dict[str, Any]:
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try:
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result = rebuild_index(
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pull_git=(
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request.pull_git
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)
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)
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except ReindexInProgressError as error:
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raise HTTPException(
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status_code=409,
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detail=str(
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error
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),
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) from error
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except RuntimeError as error:
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raise HTTPException(
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status_code=500,
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detail=str(
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error
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),
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) from error
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return {
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"status": "ok",
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"pull_git": (
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request.pull_git
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),
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"duration_seconds": (
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result[
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"duration_seconds"
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]
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),
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"counts": result[
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"counts"
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],
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}
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@router.post(
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"/webhook/gitea",
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response_model=None,
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include_in_schema=False,
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)
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async def gitea_webhook(
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request: Request,
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x_gitea_event: str | None = Header(
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default=None,
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alias="X-Gitea-Event",
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),
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x_gitea_signature: str | None = Header(
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default=None,
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alias="X-Gitea-Signature",
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),
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) -> dict[str, Any] | JSONResponse:
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raw_body = await request.body()
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secret = validate_secret(
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"WEBHOOK_SECRET"
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)
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if not verify_gitea_signature(
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raw_body,
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x_gitea_signature,
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secret,
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):
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raise HTTPException(
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status_code=(
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status.HTTP_401_UNAUTHORIZED
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),
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detail=(
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"Neplatný webhook podpis"
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),
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)
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try:
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payload = json.loads(
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raw_body.decode(
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"utf-8"
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)
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)
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except (
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UnicodeDecodeError,
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json.JSONDecodeError,
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) as error:
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raise HTTPException(
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status_code=400,
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detail=(
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"Webhook payload nie je "
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"platný JSON"
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),
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) from error
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if not isinstance(
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payload,
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dict,
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):
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raise HTTPException(
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status_code=400,
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detail=(
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"Webhook payload musí byť "
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"JSON objekt"
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),
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)
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if not x_gitea_event:
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raise HTTPException(
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status_code=400,
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detail=(
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"Chýba hlavička "
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"X-Gitea-Event"
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),
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)
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if (
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x_gitea_event.casefold()
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!= "push"
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):
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return JSONResponse(
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status_code=(
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status.HTTP_202_ACCEPTED
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),
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content={
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"status": "ignored",
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"reason": (
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"unsupported_event"
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),
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"event": (
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x_gitea_event
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),
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},
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)
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repository_name = (
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repository_name_from_payload(
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payload
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)
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)
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if repository_name is None:
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raise HTTPException(
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status_code=400,
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detail=(
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"Webhook payload neobsahuje "
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"repository.full_name"
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),
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)
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expected_repository = (
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expected_gitea_repository()
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)
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if not same_repository(
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repository_name,
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expected_repository,
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):
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raise HTTPException(
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status_code=403,
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detail=(
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"Webhook patrí neočakávanému "
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"repozitáru"
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),
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)
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try:
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result = await asyncio.to_thread(
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rebuild_index,
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pull_git=(
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webhook_should_pull_git()
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),
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)
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except ReindexInProgressError as error:
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raise HTTPException(
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status_code=409,
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detail=str(
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error
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),
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) from error
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except RuntimeError as error:
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raise HTTPException(
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status_code=500,
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detail=str(
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error
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),
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) from error
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return {
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"status": "ok",
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"event": (
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x_gitea_event
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),
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"repository": (
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repository_name
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),
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"verified_by": (
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"hmac_sha256"
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),
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"duration_seconds": (
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result[
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"duration_seconds"
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]
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),
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"counts": result[
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"counts"
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],
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}
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