fix: корректные source_url для VK постов (screen_name формат)

- VkSource: добавлено поле screen_name, заполняется из VK API при добавлении источника
- vk_parser: source_url теперь в формате vk.com/{screen_name}?w=wall{owner}_{post}
  вместо устаревшего vk.com/wall{owner}_{post}
- _vk_post_exists: проверка через LIKE чтобы находить оба формата URL
- admin_vk: автоматически получает screen_name при создании/обновлении источника
- admin_system: исправлен regex в repair-media-urls — только /news-media/ URL
- Alembic миграция: b2c3d4e5f6a7 добавляет колонку screen_name в vk_sources

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/bd/models.py

@@ -82,6 +82,7 @@ class VkSource(Base):
     id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
     group_id: Mapped[str] = mapped_column(String(50), unique=True)   # числовой ID без минуса
     group_name: Mapped[str] = mapped_column(String(200))              # станет названием категории
+    screen_name: Mapped[str | None] = mapped_column(String(200), nullable=True)  # screen_name для корректных URL
     enabled: Mapped[bool] = mapped_column(Boolean, default=True)
     strict_filter: Mapped[bool] = mapped_column(Boolean, default=True)  # True = только посты с тегами
     last_run: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)

api/migrations/versions/b2c3d4e5f6a7_add_screen_name_to_vk_sources.py

@@ -0,0 +1,26 @@
+"""add screen_name to vk_sources
+
+Revision ID: b2c3d4e5f6a7
+Revises: a1b2c3d4e5f6
+Create Date: 2026-05-20 18:00:00.000000
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = 'b2c3d4e5f6a7'
+down_revision: Union[str, None] = 'a1b2c3d4e5f6'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column('vk_sources',
+        sa.Column('screen_name', sa.String(200), nullable=True)
+    )
+
+
+def downgrade() -> None:
+    op.drop_column('vk_sources', 'screen_name')

api/route/admin_system.py

@@ -138,12 +138,13 @@ async def repair_media_urls(db: AsyncSession = Depends(get_db), _: str = Depends
         RETURNING id
     """), {"new_base": new_base, "prefix": new_base + "%"})
 
-    # HTML-контент: src="http://host/news-media/path" → src="new_base/path"
+    # HTML-контент: только MinIO URL вида src="http://host/news-media/path"
+    # Точный паттерн: URL содержит /news-media/ — не трогаем другие ссылки
     r_content = await db.execute(text(r"""
         UPDATE articles
         SET content = regexp_replace(
             content,
-            'https?://[^/]+(:[0-9]+)?/[^/]+/([^"'' ]+)',
+            'https?://[^/''"]+(:[0-9]+)?/news-media/([^''">]+)',
             :new_base || '/\2',
             'g'
         )

api/route/admin_vk.py

@@ -1,3 +1,4 @@
+import httpx
 from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException  # BackgroundTasks используется в history endpoints
 from pydantic import BaseModel
 from sqlalchemy import select
@@ -18,11 +19,30 @@ class SourceIn(BaseModel):
     strict_filter: bool = True
 
 
+async def _fetch_screen_name(group_id: str) -> str | None:
+    if not VK_TOKEN:
+        return None
+    try:
+        async with httpx.AsyncClient(timeout=5) as client:
+            r = await client.get(
+                "https://api.vk.com/method/groups.getById",
+                params={"group_ids": group_id, "access_token": VK_TOKEN, "v": "5.131"},
+            )
+            data = r.json()
+            groups = data.get("response", [])
+            if groups:
+                return groups[0].get("screen_name")
+    except Exception:
+        pass
+    return None
+
+
 def _source_dict(s: VkSource) -> dict:
     return {
         "id":            str(s.id),
         "group_id":      s.group_id,
         "group_name":    s.group_name,
+        "screen_name":   s.screen_name,
         "enabled":       s.enabled,
         "strict_filter": s.strict_filter,
         "last_run":      s.last_run.isoformat() if s.last_run else None,
@@ -58,7 +78,8 @@ async def add_source(data: SourceIn, db: AsyncSession = Depends(get_db), _: str
     exists = (await db.execute(select(VkSource).where(VkSource.group_id == group_id))).scalar_one_or_none()
     if exists:
         raise HTTPException(status_code=409, detail="Источник с таким group_id уже есть")
-    source = VkSource(group_id=group_id, group_name=data.group_name, enabled=data.enabled, strict_filter=data.strict_filter)
+    screen_name = await _fetch_screen_name(group_id)
+    source = VkSource(group_id=group_id, group_name=data.group_name, screen_name=screen_name, enabled=data.enabled, strict_filter=data.strict_filter)
     db.add(source)
     await db.commit()
     await db.refresh(source)
@@ -74,6 +95,8 @@ async def update_source(source_id: str, data: SourceIn, db: AsyncSession = Depen
     source.group_name    = data.group_name
     source.enabled       = data.enabled
     source.strict_filter = data.strict_filter
+    if not source.screen_name:
+        source.screen_name = await _fetch_screen_name(source.group_id)
     await db.commit()
     await db.refresh(source)
     return _source_dict(source)

api/vk_parser.py

@@ -361,8 +361,8 @@ async def _slug_exists(slug: str, db: AsyncSession) -> bool:
 
 
 async def _vk_post_exists(owner_id: int, post_id: int, db: AsyncSession) -> bool:
-    source_url = f"https://vk.com/wall{owner_id}_{post_id}"
+    pattern = f"%wall{owner_id}_{post_id}%"
-    r = await db.execute(select(Article.id).where(Article.source_url == source_url))
+    r = await db.execute(select(Article.id).where(Article.source_url.like(pattern)))
     return r.scalar_one_or_none() is not None
 
 
@@ -388,7 +388,7 @@ async def _get_or_create_tag(name: str, db: AsyncSession) -> Tag:
 
 # ── Post processing ───────────────────────────────────────────────────────────
 
-async def _process_post(post: dict, category_name: str, db: AsyncSession, strict_filter: bool = True) -> bool:
+async def _process_post(post: dict, category_name: str, db: AsyncSession, strict_filter: bool = True, screen_name: str | None = None) -> bool:
     owner_id = post["owner_id"]
     post_id  = post["id"]
     vk_slug  = _vk_slug(owner_id, post_id)
@@ -562,7 +562,10 @@ async def _process_post(post: dict, category_name: str, db: AsyncSession, strict
     created_at   = datetime.utcfromtimestamp(ts)
     published_at = created_at if status == ArticleStatus.published else None
 
-    source_url = f"https://vk.com/wall{owner_id}_{post_id}"
+    if screen_name:
+        source_url = f"https://vk.com/{screen_name}?w=wall{owner_id}_{post_id}"
+    else:
+        source_url = f"https://vk.com/wall{owner_id}_{post_id}"
 
     article = Article(
         id=article_id,
@@ -673,7 +676,7 @@ async def run_import() -> dict:
                 batch_new = 0
                 for post in posts:
                     try:
-                        ok = await _process_post(post, source.group_name, db, source.strict_filter)
+                        ok = await _process_post(post, source.group_name, db, source.strict_filter, screen_name=source.screen_name)
                         if ok:
                             imported += 1; grp_new += 1; batch_new += 1
                         else: