split the controllers into separate files

This commit is contained in:
Jakob Ketterl 2020-02-23 17:22:13 +01:00
parent b110705f45
commit 451eb99f8a
10 changed files with 234 additions and 221 deletions

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@ -1,210 +0,0 @@
import os
import mimetypes
import json
import pkg_resources
from datetime import datetime
from string import Template
from owrx.websocket import WebSocketConnection
from owrx.config import PropertyManager
from owrx.client import ClientRegistry
from owrx.connection import WebSocketMessageHandler
from owrx.version import openwebrx_version
from owrx.feature import FeatureDetector
from owrx.metrics import Metrics
from owrx.sdr import SdrService
from abc import ABC, abstractmethod
import logging
logger = logging.getLogger(__name__)
class Controller(ABC):
def __init__(self, handler, request):
self.handler = handler
self.request = request
def send_response(self, content, code=200, content_type="text/html", last_modified: datetime = None, max_age=None):
self.handler.send_response(code)
if content_type is not None:
self.handler.send_header("Content-Type", content_type)
if last_modified is not None:
self.handler.send_header("Last-Modified", last_modified.strftime("%a, %d %b %Y %H:%M:%S GMT"))
if max_age is not None:
self.handler.send_header("Cache-Control", "max-age: {0}".format(max_age))
self.handler.end_headers()
if type(content) == str:
content = content.encode()
self.handler.wfile.write(content)
@abstractmethod
def handle_request(self):
pass
class StatusController(Controller):
def handle_request(self):
pm = PropertyManager.getSharedInstance()
# TODO keys that have been left out since they are no longer simple strings: sdr_hw, bands, antenna
vars = {
"status": "active",
"name": pm["receiver_name"],
"op_email": pm["receiver_admin"],
"users": ClientRegistry.getSharedInstance().clientCount(),
"users_max": pm["max_clients"],
"gps": pm["receiver_gps"],
"asl": pm["receiver_asl"],
"loc": pm["receiver_location"],
"sw_version": openwebrx_version,
"avatar_ctime": os.path.getctime("htdocs/gfx/openwebrx-avatar.png"),
}
self.send_response("\n".join(["{key}={value}".format(key=key, value=value) for key, value in vars.items()]))
class StatusJsonController(Controller):
def getProfileStats(self, profile):
return {
"name": profile["name"],
"center_freq": profile["center_freq"],
"sample_rate": profile["samp_rate"],
}
def getReceiverStats(self, receiver):
stats = {
"name": receiver.getName(),
# TODO would be better to have types from the config here
"type": type(receiver).__name__,
"profiles": [self.getProfileStats(p) for p in receiver.getProfiles().values()]
}
return stats
def handle_request(self):
pm = PropertyManager.getSharedInstance()
gps = pm["receiver_gps"]
status = {
"receiver": {
"name": pm["receiver_name"],
"admin": pm["receiver_admin"],
"gps": {"lat": gps[0], "lon": gps[1]},
"asl": pm["receiver_asl"],
"location": pm["receiver_location"],
},
"max_clients": pm["max_clients"],
"version": openwebrx_version,
"sdrs": [self.getReceiverStats(r) for r in SdrService.getSources().values()]
}
self.send_response(json.dumps(status), content_type="application/json")
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 handle_request(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):
def __init__(self, handler, request):
pm = PropertyManager.getSharedInstance()
path = pm["aprs_symbols_path"]
if not path.endswith("/"):
path += "/"
self.path = path
super().__init__(handler, request)
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")
class TemplateController(Controller):
def render_template(self, file, **vars):
file_content = pkg_resources.resource_string("htdocs", file).decode("utf-8")
template = Template(file_content)
return template.safe_substitute(**vars)
def serve_template(self, file, **vars):
self.send_response(self.render_template(file, **vars), content_type="text/html")
def default_variables(self):
return {}
class WebpageController(TemplateController):
def template_variables(self):
header = self.render_template("include/header.include.html")
return {"header": header}
class IndexController(WebpageController):
def handle_request(self):
self.serve_template("index.html", **self.template_variables())
class MapController(WebpageController):
def handle_request(self):
# TODO check if we have a google maps api key first?
self.serve_template("map.html", **self.template_variables())
class FeatureController(WebpageController):
def handle_request(self):
self.serve_template("features.html", **self.template_variables())
class ApiController(Controller):
def handle_request(self):
data = json.dumps(FeatureDetector().feature_report())
self.send_response(data, content_type="application/json")
class MetricsController(Controller):
def handle_request(self):
data = json.dumps(Metrics.getSharedInstance().getMetrics())
self.send_response(data, content_type="application/json")
class WebSocketController(Controller):
def handle_request(self):
conn = WebSocketConnection(self.handler, WebSocketMessageHandler())
# enter read loop
conn.handle()

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@ -0,0 +1,25 @@
from abc import ABC, abstractmethod
from datetime import datetime
class Controller(ABC):
def __init__(self, handler, request):
self.handler = handler
self.request = request
def send_response(self, content, code=200, content_type="text/html", last_modified: datetime = None, max_age=None):
self.handler.send_response(code)
if content_type is not None:
self.handler.send_header("Content-Type", content_type)
if last_modified is not None:
self.handler.send_header("Last-Modified", last_modified.strftime("%a, %d %b %Y %H:%M:%S GMT"))
if max_age is not None:
self.handler.send_header("Cache-Control", "max-age: {0}".format(max_age))
self.handler.end_headers()
if type(content) == str:
content = content.encode()
self.handler.wfile.write(content)
@abstractmethod
def handle_request(self):
pass

9
owrx/controllers/api.py Normal file
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@ -0,0 +1,9 @@
from . import Controller
from owrx.feature import FeatureDetector
import json
class ApiController(Controller):
def handle_request(self):
data = json.dumps(FeatureDetector().feature_report())
self.send_response(data, content_type="application/json")

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@ -0,0 +1,64 @@
from . import Controller
from owrx.config import PropertyManager
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 handle_request(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):
def __init__(self, handler, request):
pm = PropertyManager.getSharedInstance()
path = pm["aprs_symbols_path"]
if not path.endswith("/"):
path += "/"
self.path = path
super().__init__(handler, request)
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")

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@ -0,0 +1,9 @@
from . import Controller
from owrx.metrics import Metrics
import json
class MetricsController(Controller):
def handle_request(self):
data = json.dumps(Metrics.getSharedInstance().getMetrics())
self.send_response(data, content_type="application/json")

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@ -0,0 +1,62 @@
from . import Controller
from owrx.client import ClientRegistry
from owrx.version import openwebrx_version
from owrx.sdr import SdrService
from owrx.config import PropertyManager
import os
import json
class StatusController(Controller):
def handle_request(self):
pm = PropertyManager.getSharedInstance()
# TODO keys that have been left out since they are no longer simple strings: sdr_hw, bands, antenna
vars = {
"status": "active",
"name": pm["receiver_name"],
"op_email": pm["receiver_admin"],
"users": ClientRegistry.getSharedInstance().clientCount(),
"users_max": pm["max_clients"],
"gps": pm["receiver_gps"],
"asl": pm["receiver_asl"],
"loc": pm["receiver_location"],
"sw_version": openwebrx_version,
"avatar_ctime": os.path.getctime("htdocs/gfx/openwebrx-avatar.png"),
}
self.send_response("\n".join(["{key}={value}".format(key=key, value=value) for key, value in vars.items()]))
class StatusJsonController(Controller):
def getProfileStats(self, profile):
return {
"name": profile["name"],
"center_freq": profile["center_freq"],
"sample_rate": profile["samp_rate"],
}
def getReceiverStats(self, receiver):
stats = {
"name": receiver.getName(),
# TODO would be better to have types from the config here
"type": type(receiver).__name__,
"profiles": [self.getProfileStats(p) for p in receiver.getProfiles().values()]
}
return stats
def handle_request(self):
pm = PropertyManager.getSharedInstance()
gps = pm["receiver_gps"]
status = {
"receiver": {
"name": pm["receiver_name"],
"admin": pm["receiver_admin"],
"gps": {"lat": gps[0], "lon": gps[1]},
"asl": pm["receiver_asl"],
"location": pm["receiver_location"],
},
"max_clients": pm["max_clients"],
"version": openwebrx_version,
"sdrs": [self.getReceiverStats(r) for r in SdrService.getSources().values()]
}
self.send_response(json.dumps(status), content_type="application/json")

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@ -0,0 +1,40 @@
from . import Controller
import pkg_resources
from string import Template
from abc import ABCMeta
class TemplateController(Controller, metaclass=ABCMeta):
def render_template(self, file, **vars):
file_content = pkg_resources.resource_string("htdocs", file).decode("utf-8")
template = Template(file_content)
return template.safe_substitute(**vars)
def serve_template(self, file, **vars):
self.send_response(self.render_template(file, **vars), content_type="text/html")
def default_variables(self):
return {}
class WebpageController(TemplateController, metaclass=ABCMeta):
def template_variables(self):
header = self.render_template("include/header.include.html")
return {"header": header}
class IndexController(WebpageController):
def handle_request(self):
self.serve_template("index.html", **self.template_variables())
class MapController(WebpageController):
def handle_request(self):
# TODO check if we have a google maps api key first?
self.serve_template("map.html", **self.template_variables())
class FeatureController(WebpageController):
def handle_request(self):
self.serve_template("features.html", **self.template_variables())

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@ -0,0 +1,10 @@
from . import Controller
from owrx.websocket import WebSocketConnection
from owrx.connection import WebSocketMessageHandler
class WebSocketController(Controller):
def handle_request(self):
conn = WebSocketConnection(self.handler, WebSocketMessageHandler())
# enter read loop
conn.handle()

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@ -1,15 +1,19 @@
from owrx.controllers import ( from owrx.controllers.status import (
StatusController,
StatusJsonController, StatusJsonController,
IndexController, StatusController
OwrxAssetsController,
WebSocketController,
MapController,
FeatureController,
ApiController,
MetricsController,
AprsSymbolsController,
) )
from owrx.controllers.template import (
IndexController,
MapController,
FeatureController
)
from owrx.controllers.assets import (
OwrxAssetsController,
AprsSymbolsController
)
from owrx.controllers.websocket import WebSocketController
from owrx.controllers.api import ApiController
from owrx.controllers.metrics import MetricsController
from http.server import BaseHTTPRequestHandler from http.server import BaseHTTPRequestHandler
from urllib.parse import urlparse, parse_qs from urllib.parse import urlparse, parse_qs
import re import re

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@ -11,7 +11,7 @@ except ImportError:
setup( setup(
name="OpenWebRX", name="OpenWebRX",
version=str(strictversion), version=str(strictversion),
packages=find_namespace_packages(include=["owrx", "owrx.source", "owrx.service", "csdr", "htdocs"]), packages=find_namespace_packages(include=["owrx", "owrx.source", "owrx.service", "owrx.controllers", "csdr", "htdocs"]),
package_data={"htdocs": [f[len("htdocs/") :] for f in glob("htdocs/**/*", recursive=True)]}, package_data={"htdocs": [f[len("htdocs/") :] for f in glob("htdocs/**/*", recursive=True)]},
entry_points={"console_scripts": ["openwebrx=owrx.__main__:main"]}, entry_points={"console_scripts": ["openwebrx=owrx.__main__:main"]},
# use the github page for now # use the github page for now