Make cbz file paths into path OpenAPI arguments

FastAPI, in Query arguments, interprets characters like `+`, `;` and `'` in special ways (see https://github.com/fastapi/fastapi/issues/720), which causes issues with the requests that some clients such as Panels send: Receiving these bare characters results in request errors.

So in order to prevent that special handling, move the `path` argument into the URL path: That eliminates the special-handling of those characters, resulting in far more requests from affected clients succeeding.

app/main.py

@@ -452,11 +452,11 @@ def _entry_xml_from_row(row) -> str:
         rel = row["rel"]
         abs_file = LIBRARY_DIR / rel
 
-        download_href = f"/download?path={quote(rel)}"
-        stream_href = f"/stream?path={quote(rel)}"
+        download_href = f"/download/{quote(rel)}"
+        stream_href = f"/stream/{quote(rel)}"
 
         # PSE: template URL & count (Panels-compatible)
-        pse_template = f"/pse/page?path={quote(rel)}&page={{pageNumber}}"
+        pse_template = f"/pse/page/{quote(rel)}?page={{pageNumber}}"
         page_count = 0
         try:
             if abs_file.exists():
@@ -470,7 +470,7 @@ def _entry_xml_from_row(row) -> str:
         if (rget(row, "ext") or "").lower() == "cbz":
             p = have_thumb(rel, comicvine_issue) or generate_thumb(rel, abs_file, comicvine_issue)
             if p:
-                image_abs = f"{base}{_abs_url('/thumb?path=' + quote(rel))}"
+                image_abs = f"{base}{_abs_url('/thumb/' + quote(rel))}"
                 thumb_href_abs = image_abs
 
         return tpl.render(
@@ -497,8 +497,9 @@ def _entry_xml_from_row(row) -> str:
 def health():
     return PlainTextResponse("ok")
 
-@app.get("/opds", response_class=Response)
-def browse(path: str = Query("", description="Relative folder path"), page: int = 1, _=Depends(require_basic)):
+
+@app.get("/opds/{path:path}", response_class=Response)
+def browse(path: str, page: int = 1, _=Depends(require_basic)):
     path = path.strip("/")
     conn = db.connect()
     try:
@@ -524,8 +525,8 @@ def browse(path: str = Query("", description="Relative folder path"), page: int
         )
         entries_xml = [smart_entry] + entries_xml
 
-    self_href = f"/opds?path={quote(path)}&page={page}" if path else f"/opds?page={page}"
-    next_href = f"/opds?path={quote(path)}&page={page+1}" if (start + PAGE_SIZE) < total else None
+    self_href = f"/opds/{quote(path)}?page={page}" if path else f"/opds?page={page}"
+    next_href = f"/opds/{quote(path)}?page={page + 1}" if (start + PAGE_SIZE) < total else None
     xml = _feed(entries_xml, title=f"/{path}" if path else "Library", self_href=self_href, next_href=next_href)
     return Response(content=xml, media_type="application/atom+xml;profile=opds-catalog")
 
@@ -591,7 +592,7 @@ def _common_file_headers(p: Path) -> dict:
         "Content-Disposition": f'inline; filename="{p.name}"',
     }
 
-@app.head("/download")
+@app.head("/download/{path:path}")
 def download_head(path: str, _=Depends(require_basic)):
     p = _abspath(path)
     if not p.exists() or not p.is_file():
@@ -601,7 +602,7 @@ def download_head(path: str, _=Depends(require_basic)):
     headers["Content-Length"] = str(st.st_size)
     return Response(status_code=200, headers=headers)
 
-@app.get("/download")
+@app.get("/download/{path:path}")
 def download(path: str, request: Request, range: str | None = Header(default=None), _=Depends(require_basic)):
     p = _abspath(path)
     if not p.exists() or not p.is_file():
@@ -668,11 +669,13 @@ def download(path: str, request: Request, range: str | None = Header(default=Non
 def stream_head(path: str, _=Depends(require_basic)):
     return download_head(path)
 
-@app.get("/stream")
+
+@app.get("/stream/{path:path}")
 def stream(path: str, request: Request, range: str | None = Header(default=None), _=Depends(require_basic)):
     return download(path=path, request=request, range=range)
 
-@app.get("/thumb")
+
+@app.get("/thumb/{path:path}")
 def thumb(path: str, _=Depends(require_basic)):
     abs_p = _abspath(path)
     if not abs_p.exists() or not abs_p.is_file():
@@ -694,8 +697,8 @@ def thumb(path: str, _=Depends(require_basic)):
     return FileResponse(p, media_type="image/jpeg")
 
 # -------------------- PSE endpoints --------------------
-@app.get("/pse/stream", response_class=Response)
-def pse_stream(path: str = Query(..., description="Relative path to CBZ"), _=Depends(require_basic)):
+@app.get("/pse/stream/{path:path}", response_class=Response)
+def pse_stream(path: str, _=Depends(require_basic)):
     """Optional: Atom feed per-pages (kept for compatibility)."""
     abs_cbz = _abspath(path)
     if not abs_cbz.exists() or not abs_cbz.is_file() or abs_cbz.suffix.lower() != ".cbz":
@@ -705,7 +708,7 @@ def pse_stream(path: str = Query(..., description="Relative path to CBZ"), _=Dep
     page_entry_tpl = env.get_template("pse_page_entry.xml.j2")
     entries_xml = []
     for i, _name in enumerate(pages, start=1):
-        page_href = _abs_url(f"/pse/page?path={quote(path)}&page={i}")
+        page_href = _abs_url(f"/pse/page/{quote(path)}?page={i}")
         entries_xml.append(
             page_entry_tpl.render(
                 entry_id=f"{SERVER_BASE.rstrip('/')}{page_href}",
@@ -716,7 +719,7 @@ def pse_stream(path: str = Query(..., description="Relative path to CBZ"), _=Dep
         )
 
     pse_feed_tpl = env.get_template("pse_feed.xml.j2")
-    self_href = f"/pse/stream?path={quote(path)}"
+    self_href = f"/pse/stream/{quote(path)}"
     xml = pse_feed_tpl.render(
         feed_id=f"{SERVER_BASE.rstrip('/')}{_abs_url(self_href)}",
         updated=now_rfc3339(),
@@ -727,8 +730,8 @@ def pse_stream(path: str = Query(..., description="Relative path to CBZ"), _=Dep
     )
     return Response(content=xml, media_type="application/atom+xml;profile=opds-catalog")
 
-@app.get("/pse/page")
-def pse_page(path: str = Query(...), page: int = Query(0, ge=0), _=Depends(require_basic)):
+@app.get("/pse/page/{path:path}")
+def pse_page(path: str, page: int = Query(0, ge=0), _=Depends(require_basic)):
     """Serve page by ZERO-BASED index to match Panels (0 == first page)."""
     abs_cbz = _abspath(path)
     if not abs_cbz.exists() or not abs_cbz.is_file():
@@ -968,7 +971,7 @@ def opds_smart_list(slug: str, page: int = 1, _=Depends(require_basic)):
     self_href = f"/opds/smart/{quote(slug)}?page={page}"
     next_href = None
     if (start + len(rows)) < total_for_nav:
-        next_href = f"/opds/smart/{quote(slug)}?page={page+1}"
+        next_href = f"/opds/smart/{quote(slug)}?page={page + 1}"
 
     xml = _feed(entries_xml, title=sl["name"], self_href=self_href, next_href=next_href)
     return Response(content=xml, media_type="application/atom+xml;profile=opds-catalog")
@@ -1029,7 +1032,6 @@ async def smartlists_post(request: Request, _=Depends(require_basic)):
     return JSONResponse({"ok": True, "saved": len(lists)})
 
 
-
 # -------------------- Index status & Reindex --------------------
 @app.get("/index/status", response_class=JSONResponse)
 def index_status(_=Depends(require_basic)):

docs/api.md

@@ -8,13 +8,13 @@ ComicOPDS exposes both user-facing endpoints (for OPDS clients and the dashboard
 |----------|--------|-------------|
 | `/` | `GET` | Root OPDS catalog feed (same as `/opds`) |
 | `/opds` | `GET` | Root OPDS catalog feed. Supports browsing by folder and smart lists. |
-| `/opds?path=...` | `GET` | Browse into a subfolder (series, publisher, etc.). |
+| `/opds/{path}?...` | `GET` | Browse into a subfolder (series, publisher, etc.). |
 | `/opds/search.xml` | `GET` | [OpenSearch 1.1](https://opensearch.org/) descriptor. Tells OPDS clients how to search. |
 | `/opds/search?q=...&page=...` | `GET` | Perform a search query (returns OPDS feed of matching comics). |
-| `/download?path=...` | `GET` | Download a `.cbz` file. Supports HTTP range requests. |
-| `/stream?path=...` | `GET` | Stream a `.cbz` file (content-type `application/vnd.comicbook+zip`). |
-| `/pse/pages?path=...` | `GET` | OPDS PSE 1.1 page streaming (individual pages as images). Used by Panels and similar clients. |
-| `/thumb?path=...` | `GET` | Get thumbnail image for a comic (JPEG format). |
+| `/download/{path}?...` | `GET` | Download a `.cbz` file. Supports HTTP range requests. |
+| `/stream/{path}?...` | `GET` | Stream a `.cbz` file (content-type `application/vnd.comicbook+zip`). |
+| `/pse/pages/{path}?...` | `GET` | OPDS PSE 1.1 page streaming (individual pages as images). Used by Panels and similar clients. |
+| `/thumb/{path}` | `GET` | Get thumbnail image for a comic (JPEG format). |
 
 ### 📊 Dashboard & Stats
 
@@ -46,4 +46,4 @@ ComicOPDS exposes both user-facing endpoints (for OPDS clients and the dashboard
 
 ⚠️ **Note:**  
 - Admin and debug endpoints require Basic Auth unless `DISABLE_AUTH=true` is set.  
-- OPDS endpoints follow the OPDS 1.2 specification and should work with Panels and other compliant OPDS clients.  
+- OPDS endpoints follow the OPDS 1.2 specification and should work with Panels and other compliant OPDS clients.