devscripts/buildserver.py

   1 #!/usr/bin/python3
   2
   3 from http.server import HTTPServer, BaseHTTPRequestHandler
   4 from socketserver import ThreadingMixIn
   5 import argparse
   6 import ctypes
   7 import sys
   8 import threading
   9 import os.path
  10
  11
  12 class BuildHTTPServer(ThreadingMixIn, HTTPServer):
  13     allow_reuse_address = True
  14
  15
  16 advapi32 = ctypes.windll.advapi32
  17
  18 SC_MANAGER_ALL_ACCESS = 0xf003f
  19 SC_MANAGER_CREATE_SERVICE = 0x02
  20 SERVICE_WIN32_OWN_PROCESS = 0x10
  21 SERVICE_AUTO_START = 0x2
  22 SERVICE_ERROR_NORMAL = 0x1
  23 DELETE = 0x00010000
  24
  25
  26 def win_OpenSCManager():
  27     res = advapi32.OpenSCManagerA(None, None, SC_MANAGER_ALL_ACCESS)
  28     if not res:
  29         raise Exception('Opening service manager failed - '
  30                         'are you running this as administrator?')
  31     return res
  32
  33
  34 def win_install_service(service_name, cmdline):
  35     manager = win_OpenSCManager()
  36     try:
  37         h = advapi32.CreateServiceA(
  38             manager, service_name, None,
  39             SC_MANAGER_CREATE_SERVICE, SERVICE_WIN32_OWN_PROCESS,
  40             SERVICE_AUTO_START, SERVICE_ERROR_NORMAL,
  41             cmdline, None, None, None, None, None)
  42         if not h:
  43             raise OSError('Service creation failed: %s' % ctypes.FormatError())
  44
  45         advapi32.CloseServiceHandle(h)
  46     finally:
  47         advapi32.CloseServiceHandle(manager)
  48
  49
  50 def win_uninstall_service(service_name):
  51     manager = win_OpenSCManager()
  52     try:
  53         h = advapi32.OpenServiceA(manager, service_name, DELETE)
  54         if not h:
  55             raise OSError('Could not find service %s: %s' % (
  56                 service_name, ctypes.FormatError()))
  57
  58         try:
  59             if not advapi32.DeleteService(h):
  60                 raise OSError('Deletion failed: %s' % ctypes.FormatError())
  61         finally:
  62             advapi32.CloseServiceHandle(h)
  63     finally:
  64         advapi32.CloseServiceHandle(manager)
  65
  66
  67 def install_service(bind):
  68     fn = os.path.normpath(__file__)
  69     cmdline = '"%s" "%s" -s -b "%s"' % (sys.executable, fn, bind)
  70     win_install_service('youtubedl_builder', cmdline)
  71
  72
  73 def uninstall_service():
  74     win_uninstall_service('youtubedl_builder')
  75
  76
  77 def main(argv):
  78     parser = argparse.ArgumentParser()
  79     parser.add_argument('-i', '--install',
  80                         action='store_const', dest='action', const='install',
  81                         help='Launch at Windows startup')
  82     parser.add_argument('-u', '--uninstall',
  83                         action='store_const', dest='action', const='uninstall',
  84                         help='Remove Windows service')
  85     parser.add_argument('-s', '--service',
  86                         action='store_const', dest='action', const='servce',
  87                         help='Run as a Windows service')
  88     parser.add_argument('-b', '--bind', metavar='<host:port>',
  89                         action='store', default='localhost:8142',
  90                         help='Bind to host:port (default %default)')
  91     options = parser.parse_args()
  92
  93     if options.action == 'install':
  94         return install_service(options.bind)
  95
  96     if options.action == 'uninstall':
  97         return uninstall_service()
  98
  99     host, port_str = options.bind.split(':')
 100     port = int(port_str)
 101
 102     print('Listening on %s:%d' % (host, port))
 103     srv = BuildHTTPServer((host, port), BuildHTTPRequestHandler)
 104     thr = threading.Thread(target=srv.serve_forever)
 105     thr.start()
 106     input('Press ENTER to shut down')
 107     srv.shutdown()
 108     thr.join()
 109
 110
 111 def rmtree(path):
 112     for name in os.listdir(path):
 113         fname = os.path.join(path, name)
 114         if os.path.isdir(fname):
 115             rmtree(fname)
 116         else:
 117             os.chmod(fname, 0o666)
 118             os.remove(fname)
 119     os.rmdir(path)
 120
 121 #==============================================================================
 122
 123 class BuildError(Exception):
 124     def __init__(self, output, code=500):
 125         self.output = output
 126         self.code = code
 127
 128     def __str__(self):
 129         return self.output
 130
 131
 132 class HTTPError(BuildError):
 133     pass
 134
 135
 136 class PythonBuilder(object):
 137     def __init__(self, **kwargs):
 138         pythonVersion = kwargs.pop('python', '2.7')
 139         try:
 140             key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\Python\PythonCore\%s\InstallPath' % pythonVersion)
 141             try:
 142                 self.pythonPath, _ = _winreg.QueryValueEx(key, '')
 143             finally:
 144                 _winreg.CloseKey(key)
 145         except Exception:
 146             raise BuildError('No such Python version: %s' % pythonVersion)
 147
 148         super(PythonBuilder, self).__init__(**kwargs)
 149
 150
 151 class GITInfoBuilder(object):
 152     def __init__(self, **kwargs):
 153         try:
 154             self.user, self.repoName = kwargs['path'][:2]
 155             self.rev = kwargs.pop('rev')
 156         except ValueError:
 157             raise BuildError('Invalid path')
 158         except KeyError as e:
 159             raise BuildError('Missing mandatory parameter "%s"' % e.args[0])
 160
 161         path = os.path.join(os.environ['APPDATA'], 'Build archive', self.repoName, self.user)
 162         if not os.path.exists(path):
 163             os.makedirs(path)
 164         self.basePath = tempfile.mkdtemp(dir=path)
 165         self.buildPath = os.path.join(self.basePath, 'build')
 166
 167         super(GITInfoBuilder, self).__init__(**kwargs)
 168
 169
 170 class GITBuilder(GITInfoBuilder):
 171     def build(self):
 172         try:
 173             subprocess.check_output(['git', 'clone', 'git://github.com/%s/%s.git' % (self.user, self.repoName), self.buildPath])
 174             subprocess.check_output(['git', 'checkout', self.rev], cwd=self.buildPath)
 175         except subprocess.CalledProcessError as e:
 176             raise BuildError(e.output)
 177
 178         super(GITBuilder, self).build()
 179
 180
 181 class YoutubeDLBuilder(object):
 182     authorizedUsers = ['fraca7', 'phihag', 'rg3', 'FiloSottile']
 183
 184     def __init__(self, **kwargs):
 185         if self.repoName != 'youtube-dl':
 186             raise BuildError('Invalid repository "%s"' % self.repoName)
 187         if self.user not in self.authorizedUsers:
 188             raise HTTPError('Unauthorized user "%s"' % self.user, 401)
 189
 190         super(YoutubeDLBuilder, self).__init__(**kwargs)
 191
 192     def build(self):
 193         try:
 194             subprocess.check_output([os.path.join(self.pythonPath, 'python.exe'), 'setup.py', 'py2exe'],
 195                                     cwd=self.buildPath)
 196         except subprocess.CalledProcessError as e:
 197             raise BuildError(e.output)
 198
 199         super(YoutubeDLBuilder, self).build()
 200
 201
 202 class DownloadBuilder(object):
 203     def __init__(self, **kwargs):
 204         self.handler = kwargs.pop('handler')
 205         self.srcPath = os.path.join(self.buildPath, *tuple(kwargs['path'][2:]))
 206         self.srcPath = os.path.abspath(os.path.normpath(self.srcPath))
 207         if not self.srcPath.startswith(self.buildPath):
 208             raise HTTPError(self.srcPath, 401)
 209
 210         super(DownloadBuilder, self).__init__(**kwargs)
 211
 212     def build(self):
 213         if not os.path.exists(self.srcPath):
 214             raise HTTPError('No such file', 404)
 215         if os.path.isdir(self.srcPath):
 216             raise HTTPError('Is a directory: %s' % self.srcPath, 401)
 217
 218         self.handler.send_response(200)
 219         self.handler.send_header('Content-Type', 'application/octet-stream')
 220         self.handler.send_header('Content-Disposition', 'attachment; filename=%s' % os.path.split(self.srcPath)[-1])
 221         self.handler.send_header('Content-Length', str(os.stat(self.srcPath).st_size))
 222         self.handler.end_headers()
 223
 224         with open(self.srcPath, 'rb') as src:
 225             shutil.copyfileobj(src, self.handler.wfile)
 226
 227         super(DownloadBuilder, self).build()
 228
 229
 230 class CleanupTempDir(object):
 231     def build(self):
 232         try:
 233             rmtree(self.basePath)
 234         except Exception as e:
 235             print('WARNING deleting "%s": %s' % (self.basePath, e))
 236
 237         super(CleanupTempDir, self).build()
 238
 239
 240 class Null(object):
 241     def __init__(self, **kwargs):
 242         pass
 243
 244     def start(self):
 245         pass
 246
 247     def close(self):
 248         pass
 249
 250     def build(self):
 251         pass
 252
 253
 254 class Builder(PythonBuilder, GITBuilder, YoutubeDLBuilder, DownloadBuilder, CleanupTempDir, Null):
 255     pass
 256
 257
 258 class BuildHTTPRequestHandler(BaseHTTPRequestHandler):
 259     actionDict = { 'build': Builder, 'download': Builder } # They're the same, no more caching.
 260
 261     def do_GET(self):
 262         path = urlparse.urlparse(self.path)
 263         paramDict = dict([(key, value[0]) for key, value in urlparse.parse_qs(path.query).items()])
 264         action, _, path = path.path.strip('/').partition('/')
 265         if path:
 266             path = path.split('/')
 267             if action in self.actionDict:
 268                 try:
 269                     builder = self.actionDict[action](path=path, handler=self, **paramDict)
 270                     builder.start()
 271                     try:
 272                         builder.build()
 273                     finally:
 274                         builder.close()
 275                 except BuildError as e:
 276                     self.send_response(e.code)
 277                     msg = unicode(e).encode('UTF-8')
 278                     self.send_header('Content-Type', 'text/plain; charset=UTF-8')
 279                     self.send_header('Content-Length', len(msg))
 280                     self.end_headers()
 281                     self.wfile.write(msg)
 282                 except HTTPError as e:
 283                     self.send_response(e.code, str(e))
 284             else:
 285                 self.send_response(500, 'Unknown build method "%s"' % action)
 286         else:
 287             self.send_response(500, 'Malformed URL')
 288
 289 #==============================================================================
 290
 291 if __name__ == '__main__':
 292     main(sys.argv[1:])