-
Notifications
You must be signed in to change notification settings - Fork 0
/
server.py
240 lines (200 loc) · 8.19 KB
/
server.py
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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
import asyncio
import io
import logging
import os
import platform
import traceback
import urllib.parse
import aiofiles
import aiosonic
import pyvips
import yaml
from aiohttp import web
from aiohttp.web import Application, Response, run_app
from aiohttp_cache import cache, setup_cache
from aiosonic import HTTPClient, Proxy
from aiosonic.exceptions import HttpParsingError
from aiosonic.resolver import AsyncResolver
ostype = platform.system()
if ostype == "Windows":
asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
else:
try:
import uvloop
asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
except ModuleNotFoundError:
pass
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
CHUNK_SIZE = int(os.environ.get("CHUNK_SIZE", 5242880))
EXPIRES = int(os.environ.get("EXPIRES", 86400)) * 1000
HOST = os.environ.get("HOST", "0.0.0.0")
PORT = int(os.environ.get("PORT", 3003))
version = "0.1.0"
with open("./config.yml", "r") as f:
config = yaml.safe_load(f)
if config["disguise"]["enable"]:
server = config["disguise"]["value"]
else:
if config["hide_proxy_version"]:
server = "media-proxy-py"
else:
server = f"media-proxy-py/{version}"
async def middleware(app, handler):
async def middleware_handler(request):
try:
response = await handler(request)
except web.HTTPException as exc:
raise exc
if not response.prepared:
response.headers["Server"] = server
return response
return middleware_handler
async def fetch_image(client: HTTPClient, url: str):
try:
response = await client.get(
url,
headers={"User-Agent": f"media-proxy-py/{version}"},
timeouts=aiosonic.Timeouts(
sock_connect=10, sock_read=60, request_timeout=120
),
)
if response.status_code != 200:
return None, None
content = await response.content()
content_type = response.headers.get("Content-Type", "").lower()
return content, content_type
except HttpParsingError:
print(traceback.format_exc())
return None, None
def process_image(image, emoji, avatar, preview, badge, split_rows=1, split_cols=1):
max_size = 2048
if image.width > max_size or image.height > max_size:
scale = min(max_size / image.width, max_size / image.height)
image = image.resize(scale)
if split_rows > 1 or split_cols > 1:
return split_image(image, split_rows, split_cols)
if emoji:
image = image.thumbnail_image(128)
elif avatar:
image = image.thumbnail_image(320)
elif preview:
image = image.thumbnail_image(200)
elif badge:
image = image.resize(96 / max(image.width, image.height))
return [image]
def split_image(image, rows, cols):
width = image.width
height = image.height
tile_width = width // cols
tile_height = height // rows
tiles = []
for row in range(rows):
for col in range(cols):
left = col * tile_width
top = row * tile_height
right = left + tile_width
bottom = top + tile_height
tile = image.crop(left, top, tile_width, tile_height)
tiles.append(tile)
return tiles
@cache(expires=EXPIRES)
async def proxy_image(request):
query_params = request.rel_url.query
url = query_params.get("url")
fallback = "fallback" in query_params
emoji = "emoji" in query_params
avatar = "avatar" in query_params
static = "static" in query_params
preview = "preview" in query_params
badge = "badge" in query_params
split_rows = int(query_params.get("rows", 1))
split_cols = int(query_params.get("cols", 1))
if not url:
return Response(status=400, text="Missing 'url' parameter")
try:
url = urllib.parse.unquote(url)
except Exception:
return Response(status=400, text="Invalid 'url' parameter")
try:
if config["dns"]["external"]:
resolver = AsyncResolver(nameservers=config["dns"]["servers"])
connector = aiosonic.TCPConnector(resolver=resolver)
else:
connector = None
if config["proxy"]["use"]:
proxy = Proxy(host=f"{config["proxy"]["type"]}://{config["proxy"]["host"]}{f":{config["proxy"]["port"]}" if config["proxy"]["port"] != "" else ""}", auth=config["proxy"]["auth"] if config["proxy"]["auth"] != "" else None)
else:
proxy = None
async with HTTPClient(connector=connector, proxy=proxy) as client:
image_data, content_type = await fetch_image(client, url)
if image_data is None:
if fallback:
return await fallback_response()
return Response(status=404, text="Image not found")
is_heif = image_data.startswith(b'\x00\x00\x00\x18ftypheic') or image_data.startswith(b'\x00\x00\x00\x1cftypheic')
if not config["process_heif"]:
if content_type in ["image/avif", "image/heif"] or image_data.startswith(b"\x00\x00\x00 ftypavif") or image_data.startswith(b"\x00\x00\x00 ftypheic"):
return Response(body=image_data, content_type=content_type)
elif content_type == "image/gif" or image_data.startswith(b"GIF"):
return Response(body=image_data, content_type="image/gif")
if "image" not in content_type:
return non_image_response(image_data, content_type)
image = pyvips.Image.new_from_buffer(
image_data, "", access="sequential", n=-1
)
images = process_image(
image, emoji, avatar, preview, badge, split_rows, split_cols
)
output = io.BytesIO()
image_format = "webp" if not badge else "png"
for i, img in enumerate(images):
img_output = io.BytesIO()
save_image(img, img_output, image_format)
img_output.seek(0)
headers = create_headers(image_format, img_output.getvalue())
return Response(body=img_output.read(), headers=headers)
except Exception as e:
if e.__class__ == pyvips.error.Error:
return Response(body=image_data, content_type=content_type)
print(f"Error processing image: {traceback.format_exc()}")
if fallback:
return await fallback_response()
return Response(status=500, text="Internal Server Error")
def save_image(image: pyvips.Image, output, image_format):
buffer = image.write_to_buffer(
f".{image_format}", Q=80 if image_format == "webp" else None
)
output.write(buffer)
def create_headers(image_format, image_data):
return {
"Cache-Control": "max-age=31536000, immutable" if image_data else "max-age=300",
"Content-Type": f"image/{image_format}",
"Content-Security-Policy": "default-src 'none'; img-src 'self'; media-src 'self'; style-src 'unsafe-inline'",
"Content-Disposition": f"inline; filename=image.{image_format}",
}
async def fallback_response():
headers = {
"Cache-Control": "max-age=300",
"Content-Type": "image/webp",
"Content-Security-Policy": "default-src 'none'; img-src 'self'; media-src 'self'; style-src 'unsafe-inline'",
"Content-Disposition": "inline; filename=image.webp",
}
async with aiofiles.open("./assets/fallback.webp", "rb") as f:
return Response(status=200, body=await f.read(), headers=headers)
def non_image_response(image_data, content_type):
headers = {
"Cache-Control": "max-age=31536000, immutable",
"Content-Type": content_type,
"Content-Security-Policy": "default-src 'none'; img-src 'self'; media-src 'self'; style-src 'unsafe-inline'",
"Content-Disposition": "inline; filename=image.webp",
}
return Response(status=200, body=image_data, headers=headers)
app = Application()
setup_cache(app)
app.middlewares.append(middleware)
app.router.add_get("/proxy/{filename}", proxy_image)
app.router.add_get("/", proxy_image)
app.router.add_get("/{filename}", proxy_image)
if __name__ == "__main__":
run_app(app, port=PORT, host=HOST)