156 lines
5.3 KiB
Python
156 lines
5.3 KiB
Python
import os
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import mimetypes
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import json
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from datetime import datetime
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from string import Template
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from owrx.websocket import WebSocketConnection
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from owrx.config import PropertyManager
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from owrx.source import ClientRegistry
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from owrx.connection import WebSocketMessageHandler
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from owrx.version import openwebrx_version
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from owrx.feature import FeatureDetector
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from owrx.metrics import Metrics
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import logging
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logger = logging.getLogger(__name__)
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class Controller(object):
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def __init__(self, handler, request):
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self.handler = handler
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self.request = request
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def send_response(self, content, code=200, content_type="text/html", last_modified: datetime = None, max_age=None):
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self.handler.send_response(code)
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if content_type is not None:
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self.handler.send_header("Content-Type", content_type)
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if last_modified is not None:
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self.handler.send_header("Last-Modified", last_modified.strftime("%a, %d %b %Y %H:%M:%S GMT"))
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if max_age is not None:
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self.handler.send_header("Cache-Control", "max-age: {0}".format(max_age))
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self.handler.end_headers()
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if type(content) == str:
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content = content.encode()
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self.handler.wfile.write(content)
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class StatusController(Controller):
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def handle_request(self):
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pm = PropertyManager.getSharedInstance()
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# TODO keys that have been left out since they are no longer simple strings: sdr_hw, bands, antenna
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vars = {
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"status": "active",
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"name": pm["receiver_name"],
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"op_email": pm["receiver_admin"],
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"users": ClientRegistry.getSharedInstance().clientCount(),
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"users_max": pm["max_clients"],
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"gps": pm["receiver_gps"],
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"asl": pm["receiver_asl"],
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"loc": pm["receiver_location"],
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"sw_version": openwebrx_version,
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"avatar_ctime": os.path.getctime("htdocs/gfx/openwebrx-avatar.png"),
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}
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self.send_response("\n".join(["{key}={value}".format(key=key, value=value) for key, value in vars.items()]))
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class AssetsController(Controller):
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def __init__(self, handler, request, path):
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if not path.endswith("/"):
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path += "/"
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self.path = path
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super().__init__(handler, request)
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def serve_file(self, file, content_type=None):
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try:
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modified = datetime.fromtimestamp(os.path.getmtime(self.path + file))
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if "If-Modified-Since" in self.handler.headers:
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client_modified = datetime.strptime(
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self.handler.headers["If-Modified-Since"], "%a, %d %b %Y %H:%M:%S %Z"
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)
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if modified <= client_modified:
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self.send_response("", code=304)
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return
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f = open(self.path + file, "rb")
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data = f.read()
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f.close()
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if content_type is None:
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(content_type, encoding) = mimetypes.MimeTypes().guess_type(file)
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self.send_response(data, content_type=content_type, last_modified=modified, max_age=3600)
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except FileNotFoundError:
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self.send_response("file not found", code=404)
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def handle_request(self):
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filename = self.request.matches.group(1)
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self.serve_file(filename)
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class OwrxAssetsController(AssetsController):
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def __init__(self, handler, request):
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super().__init__(handler, request, "htdocs/")
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class AprsSymbolsController(AssetsController):
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def __init__(self, handler, request):
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pm = PropertyManager.getSharedInstance()
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super().__init__(handler, request, pm["aprs_symbols_path"])
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class TemplateController(Controller):
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def render_template(self, file, **vars):
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f = open("htdocs/" + file, "r")
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template = Template(f.read())
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f.close()
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return template.safe_substitute(**vars)
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def serve_template(self, file, **vars):
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self.send_response(self.render_template(file, **vars), content_type="text/html")
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def default_variables(self):
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return {}
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class WebpageController(TemplateController):
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def template_variables(self):
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header = self.render_template("include/header.include.html")
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return {"header": header}
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class IndexController(WebpageController):
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def handle_request(self):
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self.serve_template("index.html", **self.template_variables())
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class MapController(WebpageController):
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def handle_request(self):
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# TODO check if we have a google maps api key first?
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self.serve_template("map.html", **self.template_variables())
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class FeatureController(WebpageController):
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def handle_request(self):
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self.serve_template("features.html", **self.template_variables())
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class ApiController(Controller):
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def handle_request(self):
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data = json.dumps(FeatureDetector().feature_report())
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self.send_response(data, content_type="application/json")
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class MetricsController(Controller):
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def handle_request(self):
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data = json.dumps(Metrics.getSharedInstance().getMetrics())
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self.send_response(data, content_type="application/json")
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class WebSocketController(Controller):
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def handle_request(self):
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conn = WebSocketConnection(self.handler, WebSocketMessageHandler())
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# enter read loop
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conn.read_loop()
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