1
2
3 __doc__ = """GNUmed web client launcher.
4 """
5
6
7
8 __version__ = "$Revision: 1 $"
9 __author__ = "S. Hilbert <Sebastian.Hilbert@gmx.net>"
10 __license__ = "GPL (details at http://www.gnu.org)"
11
12 import cherrypy
13 from Cheetah.Template import Template
14
15 try:
16 from json import loads, dumps
17 except ImportError:
18 from simplejson import loads, dumps
19
20
21
22
23 import sys, time, os, cPickle, zlib, locale, os.path, datetime as pyDT, webbrowser, shutil, logging, urllib2, re as regex
24
25
26 from Gnumed.pycommon import gmI18N, gmTools, gmDateTime, gmHooks
27 from Gnumed.pycommon import gmLoginInfo, gmPG2, gmBackendListener, gmTools, gmCfg2, gmI18N, gmDispatcher
28
29 from Gnumed.business import gmDocuments
30 from Gnumed.CherryPy import gmGuiHelpersWeb
31
32
33
34
35
36
37 _cfg = gmCfg2.gmCfgData()
38 _provider = None
39 _scripting_listener = None
40
41 _log = logging.getLogger('gm.main')
42 _log.info(__version__)
43 _log.info('web GUI framework')
44
45
46
47
48 -def connect_to_database(login_info=None, max_attempts=3, expected_version=None, require_version=True):
49 """Display the login dialog and try to log into the backend.
50
51 - up to max_attempts times
52 - returns True/False
53 """
54
55 expected_hash = gmPG2.known_schema_hashes[expected_version]
56 client_version = _cfg.get(option = u'client_version')
57 global current_db_name
58 current_db_name = u'gnumed_%s' % expected_version
59
60 attempt = 0
61
62 while attempt < max_attempts:
63
64 _log.debug('login attempt %s of %s', (attempt+1), max_attempts)
65
66 connected = False
67
68 login = login_info
69 if login is None:
70 _log.info("did not provide a login information")
71
72
73 dsn = gmPG2.make_psycopg2_dsn (
74 database = login.database,
75 host = login.host,
76 port = login.port,
77 user = login.user,
78 password = login.password
79 )
80 try:
81 conn = gmPG2.get_raw_connection(dsn = dsn, verbose = True, readonly = True)
82 connected = True
83
84 except gmPG2.cAuthenticationError, e:
85 attempt += 1
86 _log.error(u"login attempt failed: %s", e)
87 if attempt < max_attempts:
88 if (u'host=127.0.0.1' in (u'%s' % e)) or (u'host=' not in (u'%s' % e)):
89 msg = _(
90 'Unable to connect to database:\n\n'
91 '%s\n\n'
92 "Are you sure you have got a local database installed ?\n"
93 '\n'
94 "Please retry with proper credentials or cancel.\n"
95 '\n'
96 'You may also need to check the PostgreSQL client\n'
97 'authentication configuration in pg_hba.conf. For\n'
98 'details see:\n'
99 '\n'
100 'wiki.gnumed.de/bin/view/Gnumed/ConfigurePostgreSQL'
101 )
102 else:
103 msg = _(
104 "Unable to connect to database:\n\n"
105 "%s\n\n"
106 "Please retry with proper credentials or cancel.\n"
107 "\n"
108 'You may also need to check the PostgreSQL client\n'
109 'authentication configuration in pg_hba.conf. For\n'
110 'details see:\n'
111 '\n'
112 'wiki.gnumed.de/bin/view/Gnumed/ConfigurePostgreSQL'
113 )
114 msg = msg % e
115 msg = regex.sub(r'password=[^\s]+', u'password=%s' % gmTools.u_replacement_character, msg)
116 gmGuiHelpersWeb.gm_show_error (
117 msg,
118 _('Connecting to backend')
119 )
120 del e
121 continue
122
123 except gmPG2.dbapi.OperationalError, e:
124 _log.error(u"login attempt failed: %s", e)
125 msg = _(
126 "Unable to connect to database:\n\n"
127 "%s\n\n"
128 "Please retry another backend / user / password combination !\n"
129 ) % gmPG2.extract_msg_from_pg_exception(e)
130 msg = regex.sub(r'password=[^\s]+', u'password=%s' % gmTools.u_replacement_character, msg)
131 gmGuiHelpersWeb.gm_show_error (
132 msg,
133 _('Connecting to backend')
134 )
135 del e
136 continue
137
138
139 gmPG2.set_default_login(login = login)
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 listener = gmBackendListener.gmBackendListener(conn = conn)
184 break
185
186
187
188 return connected
189
194 """Get server profiles from the configuration files.
195
196 1) from system-wide file
197 2) from user file
198
199 Profiles in the user file which have the same name
200 as a profile in the system file will override the
201 system file.
202 """
203
204 src_order = [
205 (u'explicit', u'extend'),
206 (u'system', u'extend'),
207 (u'user', u'extend'),
208 (u'workbase', u'extend')
209 ]
210
211 profile_names = gmTools.coalesce (
212 _cfg.get(group = u'backend', option = u'profiles', source_order = src_order),
213 []
214 )
215
216
217 src_order = [
218 (u'explicit', u'return'),
219 (u'workbase', u'return'),
220 (u'user', u'return'),
221 (u'system', u'return')
222 ]
223
224 profiles = {}
225
226 for profile_name in profile_names:
227
228
229 profile = cBackendProfile()
230 profile_section = 'profile %s' % profile_name
231
232 profile.name = profile_name
233 profile.host = gmTools.coalesce(_cfg.get(profile_section, u'host', src_order), u'').strip()
234 port = gmTools.coalesce(_cfg.get(profile_section, u'port', src_order), 5432)
235 try:
236 profile.port = int(port)
237 if profile.port < 1024:
238 raise ValueError('refusing to use priviledged port (< 1024)')
239 except ValueError:
240 _log.warning('invalid port definition: [%s], skipping profile [%s]', port, profile_name)
241 continue
242 profile.database = gmTools.coalesce(_cfg.get(profile_section, u'database', src_order), u'').strip()
243 if profile.database == u'':
244 _log.warning('database name not specified, skipping profile [%s]', profile_name)
245 continue
246 profile.encoding = gmTools.coalesce(_cfg.get(profile_section, u'encoding', src_order), u'UTF8')
247 profile.public_db = bool(_cfg.get(profile_section, u'public/open access', src_order))
248 profile.helpdesk = _cfg.get(profile_section, u'help desk', src_order)
249
250 label = u'%s (%s@%s)' % (profile_name, profile.database, profile.host)
251 profiles[label] = profile
252
253
254
255 if not (_cfg.get(option = 'debug') or current_db_name.endswith('_devel')):
256 profiles2remove = []
257 for label in profiles:
258 if profiles[label].database != current_db_name:
259 profiles2remove.append(label)
260 for label in profiles2remove:
261 del profiles[label]
262
263 if len(profiles) == 0:
264 host = u'salaam.homeunix.com'
265 label = u'public GNUmed database (%s@%s)' % (current_db_name, host)
266 profiles[label] = cBackendProfile()
267 profiles[label].name = label
268 profiles[label].host = host
269 profiles[label].port = 5432
270 profiles[label].database = current_db_name
271 profiles[label].encoding = u'UTF8'
272 profiles[label].public_db = True
273 profiles[label].helpdesk = u'http://wiki.gnumed.de'
274
275 return profiles
276
277
278 -def GetLoginInfo(username=None, password=None, backend=None ):
279
280
281
282
283
284 """convenience function for compatibility with gmLoginInfo.LoginInfo"""
285
286
287
288
289 __backend_profiles = __get_backend_profiles()
290 profile = __backend_profiles[backend.encode('utf8').strip()]
291
292 _log.debug(u'backend profile "%s" selected', profile.name)
293 _log.debug(u' details: <%s> on %s@%s:%s (%s, %s)',
294 username,
295 profile.database,
296 profile.host,
297 profile.port,
298 profile.encoding,
299 gmTools.bool2subst(profile.public_db, u'public', u'private')
300 )
301
302 login = gmLoginInfo.LoginInfo (
303 user = username,
304 password = password,
305 host = profile.host,
306 database = profile.database,
307 port = profile.port
308 )
309
310
311 return login
312
315 try:
316 kwargs['originated_in_database']
317 print '==> got notification from database "%s":' % kwargs['signal']
318 except KeyError:
319 print '==> received signal from client: "%s"' % kwargs['signal']
320
321 del kwargs['signal']
322 for key in kwargs.keys():
323 print ' [%s]: %s' % (key, kwargs[key])
324
328
332 print "before_handler jsonrpc"
333
334 req = cherrypy.request
335 try:
336 size = int(req.headers["Content-Length"])
337 except:
338 size = 1
339 try:
340 json_string = req.body.read()
341 print "json_string [%s]" % json_string
342 obj = loads(json_string)
343 myparams = {}
344 for key, val in obj.items():
345 mykey = str(key)
346 myparams[mykey] = val
347 req.params = myparams
348 except:
349 pass
350 cherrypy.tools.jsonrpchdl = cherrypy.Tool('before_handler',jsonrpchdl)
351
352 PYJSDIR = sys._getframe().f_code.co_filename
353 PYJSDIR = os.path.split(os.path.dirname(PYJSDIR))[0]
354 PYJSDIR = os.path.join(PYJSDIR, 'pyjamas')
355
356 DEFAULT_BACKEND = "GNUmed database on this machine (Linux/Mac) (gnumed_v15@)"
359
360 @cherrypy.expose
362 fname = os.path.join(PYJSDIR,args[0])
363 print "try to return contents of file %s" % fname
364 f = file(fname)
365 s = f.read()
366 return s
367
368 @cherrypy.expose
369 @cherrypy.tools.jsonrpchdl()
371 print "echo service"
372 print args
373 print kwargs
374 method = kwargs['method']
375 f = getattr(self,method)
376 res = f(*kwargs['params'])
377 return dumps({'id':kwargs['id'],'result':res,'error':None})
378 - def echo(self, text):
386
389
395
403
404 - def login(self, username=None, password=None, backend=None):
418
419 - def doLogin(self, username=None, password=None, backend=None):
435
436 doLogin.exposed = True
437
438
440
441
442 t = Template( file="CherryPy/templates/index.tmpl"
443
444 , searchList = {
445 "title" : "Welcome to GNUmed - Login"
446 , "cssFiles" : ["css/ext-all.css", "css/xtheme-gray.css"]
447 , "jsFiles" : ["ext/ext-base.js", "ext/ext-core.js"]
448 , "backend" : "GNUmed database on this machine (Linux/Mac) (gnumed_v15@)"
449 }
450 )
451 return str( t )
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469 index.exposed = True
470
471
472
473
474
475 -def main():
476
477 if _cfg.get(option = 'debug'):
478 gmDispatcher.connect(receiver = _signal_debugging_monitor)
479 _log.debug('gmDispatcher signal monitor activated')
480
481 cherrypy.quickstart(gmApp(), "/",
482 {'global':{'server.socket_port':8080,'log.screen':True}})
483