Add paperless-ngx integration for document storage and share links

- dlib/integrations/paperless.py: sync HTTP client wrapping the paperless-ngx
  REST API (upload doc, poll task, create/delete share links, delete document)
- config: PAPERLESS_ENABLED, PAPERLESS_BASE_URL, PAPERLESS_TOKEN, PAPERLESS_TAG_IDS
- PublicAsset model: paperless_document_id + paperless_share_slug columns
- publication service: after creating the asset, if paperless is enabled upload
  the patched PDF and create a share link; stores doc id + share slug on the asset
- public routes: pass expires_at through to publish_version; new
  POST /{slug}/share-links endpoint to (re)create expiring share links on demand
- schemas: PublishRequest.expires_at, PublicAssetResponse.paperless_share_url,
  new ShareLinkRequest model
- frontend: paperless_share_url field on PublicAsset type, createShareLink()
  and expiresAt param on publishVersion() in api.ts
- .env.example: documented paperless env vars

https://claude.ai/code/session_01YPVs6uBwCvcwVMvrfLBBdu

apps/backend/fastapi/app/api/routes/public.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import asyncio
 import hashlib
 from datetime import datetime, timezone
 
@@ -16,11 +17,13 @@ from app.schemas import (
     PublicAssetLookupResponse,
     PublicAssetResponse,
     PublishRequest,
+    ShareLinkRequest,
 )
 from app.services.publication import publish_version
 from app.services.storage import storage_client
 from dlib.auth import AuthenticatedUser
 from dlib.cv import docx_bytes_to_pdf, generate_patched_docx
+from dlib.integrations.paperless import get_paperless_client
 
 
 router = APIRouter(prefix="/public", tags=["public"])
@@ -48,6 +51,18 @@ async def _get_public_asset(session: AsyncSession, slug: str) -> PublicAsset:
     return asset
 
 
+async def _assert_owner(session: AsyncSession, asset: PublicAsset, owner_id: str) -> None:
+    if not asset.version_id:
+        raise HTTPException(status_code=403, detail="Not authorized")
+    stmt = (
+        select(CvVersion)
+        .join(CvVersion.document)
+        .where(CvVersion.id == asset.version_id, CvDocument.owner_id == owner_id)
+    )
+    if not (await session.execute(stmt)).scalars().one_or_none():
+        raise HTTPException(status_code=403, detail="Not authorized")
+
+
 @router.post("/publish", response_model=PublicAssetResponse)
 async def publish(
     payload: PublishRequest,
@@ -60,12 +75,40 @@ async def publish(
         version_id=payload.version_id,
         submission_id=payload.submission_id,
         slug=payload.slug,
+        expires_at=payload.expires_at,
     )
     if not asset:
         raise HTTPException(status_code=404, detail="Version or submission not found")
     return _response_from_asset(asset)
 
 
+@router.post("/{slug}/share-links", response_model=PublicAssetResponse)
+async def create_share_link(
+    slug: str,
+    payload: ShareLinkRequest,
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    asset = await _get_public_asset(session, slug)
+    await _assert_owner(session, asset, user.sub)
+
+    if not asset.paperless_document_id:
+        raise HTTPException(status_code=409, detail="Asset not synced to paperless")
+
+    settings = get_settings()
+    client = get_paperless_client(settings)
+    if not client:
+        raise HTTPException(status_code=503, detail="Paperless integration not enabled")
+
+    _, share_url = await asyncio.to_thread(
+        client.create_share_link, asset.paperless_document_id, payload.expiration_date
+    )
+    asset.paperless_share_slug = share_url.split("/share/")[-1]
+    await session.commit()
+    await session.refresh(asset)
+    return _response_from_asset(asset)
+
+
 @router.get("/{slug}/analytics", response_model=PublicAssetAnalyticsResponse)
 async def get_analytics(
     slug: str,
@@ -73,17 +116,7 @@ async def get_analytics(
     user: AuthenticatedUser = Depends(get_current_user),
 ):
     asset = await _get_public_asset(session, slug)
-
-    if asset.version_id:
-        stmt = (
-            select(CvVersion)
-            .join(CvVersion.document)
-            .where(CvVersion.id == asset.version_id, CvDocument.owner_id == user.sub)
-        )
-        if not (await session.execute(stmt)).scalars().one_or_none():
-            raise HTTPException(status_code=403, detail="Not authorized")
-    else:
-        raise HTTPException(status_code=403, detail="Not authorized")
+    await _assert_owner(session, asset, user.sub)
 
     view_count = (
         await session.execute(
@@ -137,7 +170,11 @@ async def get_public_asset(slug: str, request: Request, session: AsyncSession =
 def _response_from_asset(asset: PublicAsset) -> PublicAssetResponse:
     settings = get_settings()
     base = settings.public_base_url.rstrip("/")
-    url = f"{base}/cv/{asset.slug}"
+    paperless_share_url = (
+        f"{settings.paperless_base_url}/share/{asset.paperless_share_slug}"
+        if settings.paperless_base_url and asset.paperless_share_slug
+        else None
+    )
     return PublicAssetResponse(
         id=asset.id,
         slug=asset.slug,
@@ -146,5 +183,6 @@ def _response_from_asset(asset: PublicAsset) -> PublicAssetResponse:
         created_at=asset.created_at,
         version_id=asset.version_id,
         submission_id=asset.submission_id,
-        url=url,
+        url=f"{base}/cv/{asset.slug}",
+        paperless_share_url=paperless_share_url,
     )

apps/backend/fastapi/app/core/config.py

@@ -47,6 +47,11 @@ class Settings(BaseSettings):
     )
     publish_domain: str = Field(default="cv.alves.world", alias="CV_PUBLIC_DOMAIN")
 
+    paperless_enabled: bool = Field(default=False, alias="PAPERLESS_ENABLED")
+    paperless_base_url: str | None = Field(default=None, alias="PAPERLESS_BASE_URL")
+    paperless_token: str | None = Field(default=None, alias="PAPERLESS_TOKEN")
+    paperless_tag_ids: list[int] = Field(default_factory=list, alias="PAPERLESS_TAG_IDS")
+
     class Config:
         env_file = ".env"
         extra = "ignore"
@@ -67,13 +72,20 @@ class Settings(BaseSettings):
             return [origin.strip() for origin in value.split(",") if origin.strip()]
         return value
 
-    @field_validator("storage_endpoint_url", mode="before")
+    @field_validator("storage_endpoint_url", "paperless_base_url", "paperless_token", mode="before")
     @classmethod
-    def _empty_endpoint_to_none(cls, value):
+    def _empty_str_to_none(cls, value):
         if isinstance(value, str) and not value.strip():
             return None
         return value
 
+    @field_validator("paperless_tag_ids", mode="before")
+    @classmethod
+    def _parse_tag_ids(cls, value):
+        if isinstance(value, str):
+            return [int(v.strip()) for v in value.split(",") if v.strip()]
+        return value
+
 
 @lru_cache(maxsize=1)
 def get_settings() -> Settings:

apps/backend/fastapi/app/models/cv.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import enum
 from datetime import datetime, timezone
 
-from sqlalchemy import Boolean, DateTime, Enum, ForeignKey, String, Text
+from sqlalchemy import Boolean, DateTime, Enum, ForeignKey, Integer, String, Text
 from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
@@ -148,6 +148,8 @@ class PublicAsset(Base, IdentifierMixin, TimestampMixin):
     expires_at: Mapped[str | None] = mapped_column(
         DateTime(timezone=True), nullable=True
     )
+    paperless_document_id: Mapped[int | None] = mapped_column(Integer, nullable=True)
+    paperless_share_slug: Mapped[str | None] = mapped_column(String(160), nullable=True)
 
     submission: Mapped[Submission | None] = relationship(
         "Submission", back_populates="public_asset"

apps/backend/fastapi/app/schemas/__init__.py

@@ -9,6 +9,7 @@ from .cv import (
     PublicAssetLookupResponse,
     PublicAssetResponse,
     PublishRequest,
+    ShareLinkRequest,
     SubmissionCreateRequest,
     SubmissionResponse,
     SubmissionStatusUpdateRequest,
@@ -31,6 +32,7 @@ __all__ = [
     "SuggestionResponse",
     "SuggestionUpdateRequest",
     "PublishRequest",
+    "ShareLinkRequest",
     "PublicAssetResponse",
     "PublicAssetLookupResponse",
     "PublicAssetAnalyticsResponse",

apps/backend/fastapi/app/schemas/cv.py

@@ -121,6 +121,11 @@ class PublishRequest(BaseModel):
     version_id: str | None = None
     submission_id: str | None = None
     slug: str | None = None
+    expires_at: datetime | None = None
+
+
+class ShareLinkRequest(BaseModel):
+    expiration_date: datetime | None = None
 
 
 class PublicAssetResponse(BaseModel):
@@ -134,6 +139,7 @@ class PublicAssetResponse(BaseModel):
     version_id: str | None = None
     submission_id: str | None = None
     url: str | None = None
+    paperless_share_url: str | None = None
 
 
 class PublicAssetLookupResponse(BaseModel):

apps/backend/fastapi/app/services/publication.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import asyncio
 import re
 from datetime import datetime
 from uuid import uuid4
@@ -7,7 +8,11 @@ from uuid import uuid4
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
+from app.core.config import get_settings
 from app.models import CvDocument, CvVersion, PublicAsset, Submission
+from app.services.storage import storage_client
+from dlib.cv import docx_bytes_to_pdf, generate_patched_docx
+from dlib.integrations.paperless import get_paperless_client
 
 
 async def publish_version(
@@ -17,6 +22,7 @@ async def publish_version(
     version_id: str | None,
     submission_id: str | None,
     slug: str | None,
+    expires_at: datetime | None = None,
 ) -> PublicAsset | None:
     target_version: CvVersion | None = None
     target_submission: Submission | None = None
@@ -55,11 +61,27 @@ async def publish_version(
         slug=resolved_slug,
         artifact_key=target_version.artifact_docx_key,
         is_public=True,
-        expires_at=None,
+        expires_at=expires_at,
     )
     session.add(asset)
     await session.commit()
     await session.refresh(asset)
+
+    settings = get_settings()
+    client = get_paperless_client(settings)
+    if client:
+        docx = storage_client.download_bytes(target_version.artifact_docx_key)
+        blocks = target_version.structured_blocks or []
+        pdf = docx_bytes_to_pdf(generate_patched_docx(docx, blocks))
+        doc_id = await asyncio.to_thread(
+            client.upload_document, pdf, resolved_slug, settings.paperless_tag_ids or []
+        )
+        _, share_url = await asyncio.to_thread(client.create_share_link, doc_id, expires_at)
+        asset.paperless_document_id = doc_id
+        asset.paperless_share_slug = share_url.split("/share/")[-1]
+        await session.commit()
+        await session.refresh(asset)
+
     return asset
 
 

apps/webapp/src/libs/api.ts

@@ -80,6 +80,7 @@ export type PublicAsset = {
     version_id?: string | null;
     submission_id?: string | null;
     created_at: string;
+    paperless_share_url?: string | null;
 };
 
 export type PublicAssetAnalytics = {
@@ -229,11 +230,23 @@ export async function publishVersion(
     versionId?: string | null,
     submissionId?: string | null,
     slug?: string | null,
+    expiresAt?: string | null,
 ): Promise<PublicAsset> {
     return req<PublicAsset>('/api/v1/public/publish', {
         method: 'POST',
         headers: { 'content-type': 'application/json' },
-        body: JSON.stringify({ version_id: versionId ?? null, submission_id: submissionId ?? null, slug: slug ?? null }),
+        body: JSON.stringify({ version_id: versionId ?? null, submission_id: submissionId ?? null, slug: slug ?? null, expires_at: expiresAt ?? null }),
+    });
+}
+
+export async function createShareLink(
+    slug: string,
+    expirationDate?: string | null,
+): Promise<PublicAsset> {
+    return req<PublicAsset>(`/api/v1/public/${encodeURIComponent(slug)}/share-links`, {
+        method: 'POST',
+        headers: { 'content-type': 'application/json' },
+        body: JSON.stringify({ expiration_date: expirationDate ?? null }),
     });
 }
 

apps/webapp/src/types/cv.ts

@@ -64,6 +64,8 @@ export interface PublicAsset {
   isPublic: boolean;
   expiresAt?: string;
   viewCount: number;
+  url?: string | null;
+  paperlessShareUrl?: string | null;
 }
 
 export interface AISuggestion {