openwebrx-clone/owrx/controllers/assets.py

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from . import Controller
from owrx.config import Config
from datetime import datetime
import mimetypes
import os
import pkg_resources
class AssetsController(Controller):
def getModified(self, file):
return None
def openFile(self, file):
pass
def serve_file(self, file, content_type=None):
try:
modified = self.getModified(file)
if modified is not None and "If-Modified-Since" in self.handler.headers:
client_modified = datetime.strptime(
self.handler.headers["If-Modified-Since"], "%a, %d %b %Y %H:%M:%S %Z"
)
if modified <= client_modified:
self.send_response("", code=304)
return
f = self.openFile(file)
data = f.read()
f.close()
if content_type is None:
(content_type, encoding) = mimetypes.MimeTypes().guess_type(file)
self.send_response(data, content_type=content_type, last_modified=modified, max_age=3600)
except FileNotFoundError:
self.send_response("file not found", code=404)
def indexAction(self):
filename = self.request.matches.group(1)
self.serve_file(filename)
class OwrxAssetsController(AssetsController):
def openFile(self, file):
return pkg_resources.resource_stream("htdocs", file)
class AprsSymbolsController(AssetsController):
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def __init__(self, handler, request, options):
pm = Config.get()
path = pm["aprs_symbols_path"]
if not path.endswith("/"):
path += "/"
self.path = path
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super().__init__(handler, request, options)
def getFilePath(self, file):
return self.path + file
def getModified(self, file):
return datetime.fromtimestamp(os.path.getmtime(self.getFilePath(file)))
def openFile(self, file):
return open(self.getFilePath(file), "rb")