1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
"""Session management API routes."""
from __future__ import annotations
import json
import logging
from typing import Any, cast
from starlette.datastructures import UploadFile
from starlette.requests import Request
from starlette.responses import JSONResponse
from ..sessions import _IMAGE_MIMES, _IMAGE_SUFFIXES, SessionStore, is_valid_id
from ..tools.helper.pdf import extract_pdf_text
logger = logging.getLogger("ollama_web.sessions")
_UPLOAD_CHUNK_SIZE = 1024 * 1024
def _get_store(request: Request) -> SessionStore:
return cast(SessionStore, request.app.state.session_store)
def _is_image_file(name: str, mime: str) -> bool:
mime_lower = mime.lower()
name_lower = name.lower()
if mime_lower in _IMAGE_MIMES:
return True
for suffix in _IMAGE_SUFFIXES:
if name_lower.endswith(suffix):
return True
return False
async def list_sessions(request: Request) -> JSONResponse:
store = _get_store(request)
return JSONResponse({"sessions": store.list_sessions()})
async def create_session(request: Request) -> JSONResponse:
store = _get_store(request)
raw = await request.body()
body = json.loads(raw.decode("utf-8")) if raw else {}
title = body.get("title")
session = store.create(title=title)
return JSONResponse(session)
async def get_session(request: Request) -> JSONResponse:
store = _get_store(request)
session_id = request.path_params["session_id"]
if not is_valid_id(session_id):
return JSONResponse({"error": "Invalid session id"}, status_code=400)
session = store.get(session_id)
if session is None:
return JSONResponse({"error": "Session not found"}, status_code=404)
return JSONResponse(session)
async def delete_session(request: Request) -> JSONResponse:
store = _get_store(request)
session_id = request.path_params["session_id"]
if not is_valid_id(session_id):
return JSONResponse({"error": "Invalid session id"}, status_code=400)
ok = store.delete(session_id)
if not ok:
return JSONResponse({"error": "Session not found"}, status_code=404)
return JSONResponse({"deleted": True})
async def upload_file(request: Request) -> JSONResponse:
store = _get_store(request)
session_id = request.path_params["session_id"]
if not is_valid_id(session_id):
return JSONResponse({"error": "Invalid session id"}, status_code=400)
session = store.get(session_id)
if session is None:
return JSONResponse({"error": "Session not found"}, status_code=404)
max_size = request.app.state.settings.max_upload_mb * 1024 * 1024
try:
form = await request.form()
except Exception as exc: # noqa: BLE001
logger.error("failed to parse multipart form: %s", exc)
return JSONResponse({"error": f"Invalid form data: {exc}"}, status_code=400)
files = form.getlist("files") if hasattr(form, "getlist") else [form.get("files")]
results: list[dict[str, Any]] = []
for upload in files:
if upload is None:
continue
if not hasattr(upload, "read"):
results.append({"name": "unknown", "error": "Invalid upload"})
continue
upload_file = cast(UploadFile, upload)
try:
chunks: list[bytes] = []
total = 0
while True:
chunk = await upload_file.read(_UPLOAD_CHUNK_SIZE)
if not chunk:
break
total += len(chunk)
if total > max_size:
raise ValueError(
f"File exceeds {request.app.state.settings.max_upload_mb} MB limit"
)
chunks.append(chunk)
data = b"".join(chunks)
except Exception as exc: # noqa: BLE001
results.append({"name": getattr(upload_file, "filename", "unknown"), "error": str(exc)})
continue
if len(data) > max_size:
results.append(
{
"name": getattr(upload_file, "filename", "unknown"),
"error": f"File exceeds {request.app.state.settings.max_upload_mb} MB limit",
}
)
continue
name = getattr(upload_file, "filename", "uploaded-file") or "uploaded-file"
content_type = getattr(upload_file, "content_type", None) or "application/octet-stream"
text = ""
if _is_image_file(name, content_type):
# Images are passed to ollama via Message.images (base64), not as text.
text = ""
elif content_type == "application/pdf" or name.lower().endswith(".pdf"):
text = extract_pdf_text(data)
else:
# Try decode as text for text-like uploads.
try:
text = data.decode("utf-8")
except UnicodeDecodeError:
try:
text = data.decode("cp932")
except UnicodeDecodeError:
text = data.decode("utf-8", errors="replace")
chat_file = store.add_file(
session_id=session_id,
name=name,
data=data,
mime=content_type,
text=text,
source="upload",
)
results.append(chat_file.to_dict())
return JSONResponse({"files": results})
async def delete_file(request: Request) -> JSONResponse:
store = _get_store(request)
session_id = request.path_params["session_id"]
file_id = request.path_params["file_id"]
if not is_valid_id(session_id) or not is_valid_id(file_id):
return JSONResponse({"error": "Invalid id"}, status_code=400)
ok = store.remove_file(session_id, file_id)
if not ok:
return JSONResponse({"error": "File not found"}, status_code=404)
return JSONResponse({"deleted": True})
async def clear_messages(request: Request) -> JSONResponse:
store = _get_store(request)
session_id = request.path_params["session_id"]
if not is_valid_id(session_id):
return JSONResponse({"error": "Invalid session id"}, status_code=400)
session = store.clear_messages(session_id)
if session is None:
return JSONResponse({"error": "Session not found"}, status_code=404)
return JSONResponse({"cleared": True, "session": session})
|
