summaryrefslogtreecommitdiffstats
path: root/scripting/source/pyprov/pythonscript.py
blob: 4955c8c5488830ac00bcd195f9f98fc37488ca9f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This file incorporates work covered by the following license notice:
#
#   Licensed to the Apache Software Foundation (ASF) under one or more
#   contributor license agreements. See the NOTICE file distributed
#   with this work for additional information regarding copyright
#   ownership. The ASF licenses this file to you under the Apache
#   License, Version 2.0 (the "License"); you may not use this file
#   except in compliance with the License. You may obtain a copy of
#   the License at http://www.apache.org/licenses/LICENSE-2.0 .
#
# XScript implementation for python
import uno
import unohelper
import sys
import os
import types
import time
import ast
import platform
from com.sun.star.uri.RelativeUriExcessParentSegments import RETAIN

class LogLevel:
    NONE = 0   # production level
    ERROR = 1  # for script developers
    DEBUG = 2  # for script framework developers

PYSCRIPT_LOG_ENV = "PYSCRIPT_LOG_LEVEL"
PYSCRIPT_LOG_STDOUT_ENV = "PYSCRIPT_LOG_STDOUT"

# Configuration ----------------------------------------------------
LogLevel.use = LogLevel.NONE
if os.environ.get(PYSCRIPT_LOG_ENV) == "ERROR":
    LogLevel.use = LogLevel.ERROR
elif os.environ.get(PYSCRIPT_LOG_ENV) == "DEBUG":
    LogLevel.use = LogLevel.DEBUG

# True, writes to stdout (difficult on windows)
# False, writes to user/Scripts/python/log.txt
LOG_STDOUT = os.environ.get(PYSCRIPT_LOG_STDOUT_ENV, "1") != "0"

ENABLE_EDIT_DIALOG=False                    # offers a minimal editor for editing.
#-------------------------------------------------------------------

def encfile(uni):
    return uni.encode( sys.getfilesystemencoding())

def lastException2String():
    (excType,excInstance,excTraceback) = sys.exc_info()
    ret = str(excType) + ": "+str(excInstance) + "\n" + \
          uno._uno_extract_printable_stacktrace( excTraceback )
    return ret

def logLevel2String( level ):
    ret = " NONE"
    if level == LogLevel.ERROR:
        ret = "ERROR"
    elif level >= LogLevel.DEBUG:
        ret = "DEBUG"
    return ret

def getLogTarget():
    ret = sys.stdout
    if not LOG_STDOUT:
        try:
            pathSubst = uno.getComponentContext().ServiceManager.createInstance(
                "com.sun.star.util.PathSubstitution" )
            userInstallation =  pathSubst.getSubstituteVariableValue( "user" )
            if len( userInstallation ) > 0:
                systemPath = uno.fileUrlToSystemPath( userInstallation + "/Scripts/python/log.txt" )
                ret = open( systemPath , "a" )
        except:
            print("Exception during creation of pythonscript logfile: "+ lastException2String() + "\n, delegating log to stdout\n")
    return ret

class Logger(LogLevel):
    def __init__(self , target ):
        self.target = target

    def isDebugLevel( self ):
        return self.use >= self.DEBUG

    def debug( self, msg ):
        if self.isDebugLevel():
            self.log( self.DEBUG, msg )

    def isErrorLevel( self ):
        return self.use >= self.ERROR

    def error( self, msg ):
        if self.isErrorLevel():
            self.log( self.ERROR, msg )

    def log( self, level, msg ):
        if self.use >= level:
            try:
                self.target.write(
                    time.asctime() +
                    " [" +
                    logLevel2String( level ) +
                    "] " +
                    msg +
                    "\n" )
                self.target.flush()
            except:
                print("Error during writing to stdout: " +lastException2String() + "\n")

log = Logger( getLogTarget() )

log.debug( "pythonscript loading" )

#from com.sun.star.lang import typeOfXServiceInfo, typeOfXTypeProvider
from com.sun.star.uno import RuntimeException
from com.sun.star.lang import IllegalArgumentException
from com.sun.star.container import NoSuchElementException
from com.sun.star.lang import XServiceInfo
from com.sun.star.io import IOException
from com.sun.star.ucb import CommandAbortedException, XCommandEnvironment, XProgressHandler, Command
from com.sun.star.task import XInteractionHandler
from com.sun.star.beans import XPropertySet, Property
from com.sun.star.container import XNameContainer
from com.sun.star.xml.sax import XDocumentHandler, InputSource
from com.sun.star.uno import Exception as UnoException
from com.sun.star.script import XInvocation
from com.sun.star.awt import XActionListener

from com.sun.star.script.provider import XScriptProvider, XScript, XScriptContext, ScriptFrameworkErrorException
from com.sun.star.script.browse import XBrowseNode
from com.sun.star.script.browse.BrowseNodeTypes import SCRIPT, CONTAINER, ROOT
from com.sun.star.util import XModifyListener

LANGUAGENAME = "Python"
GLOBAL_SCRIPTCONTEXT_NAME = "XSCRIPTCONTEXT"
CALLABLE_CONTAINER_NAME =  "g_exportedScripts"

# pythonloader looks for a static g_ImplementationHelper variable
g_ImplementationHelper = unohelper.ImplementationHelper()
g_implName = "org.libreoffice.pyuno.LanguageScriptProviderFor"+LANGUAGENAME



BLOCK_SIZE = 65536
def readTextFromStream( inputStream ):
    # read the file
    code = uno.ByteSequence( b"" )
    while True:
        read,out = inputStream.readBytes( None , BLOCK_SIZE )
        code = code + out
        if read < BLOCK_SIZE:
           break
    return code.value

def toIniName( str ):
    if platform.system() == "Windows":
        return str + ".ini"
    else:
        return str + "rc"


""" definition: storageURI is the system dependent, absolute file url, where the script is stored on disk
                scriptURI is the system independent uri
"""
class MyUriHelper:

    def __init__( self, ctx, location ):
        self.ctx = ctx
        self.s_UriMap = \
        { "share" : "vnd.sun.star.expand:$BRAND_BASE_DIR/$BRAND_SHARE_SUBDIR/Scripts/python" , \
          "share:uno_packages" : "vnd.sun.star.expand:$UNO_SHARED_PACKAGES_CACHE/uno_packages", \
          "user" : "vnd.sun.star.expand:${$BRAND_INI_DIR/" + toIniName( "bootstrap") + "::UserInstallation}/user/Scripts/python" , \
          "user:uno_packages" : "vnd.sun.star.expand:$UNO_USER_PACKAGES_CACHE/uno_packages" }
        self.m_uriRefFac = ctx.ServiceManager.createInstanceWithContext("com.sun.star.uri.UriReferenceFactory",ctx)
        if location.startswith( "vnd.sun.star.tdoc" ):
            self.m_baseUri = location + "/Scripts/python"
            self.m_scriptUriLocation = "document"
        else:
            self.m_baseUri = expandUri( self.s_UriMap[location] )
            self.m_scriptUriLocation = location
        log.debug( "initialized urihelper with baseUri="+self.m_baseUri + ",m_scriptUriLocation="+self.m_scriptUriLocation )

    def getRootStorageURI( self ):
        return self.m_baseUri

    def getStorageURI( self, scriptURI ):
        return self.scriptURI2StorageUri(scriptURI)

    def getScriptURI( self, storageURI ):
        return self.storageURI2ScriptUri(storageURI)

    def storageURI2ScriptUri( self, storageURI ):
        if not storageURI.startswith( self.m_baseUri ):
            message = "pythonscript: storage uri '" + storageURI + "' not in base uri '" + self.m_baseUri + "'"
            log.debug( message )
            raise RuntimeException( message, self.ctx )

        ret = "vnd.sun.star.script:" + \
              storageURI[len(self.m_baseUri)+1:].replace("/","|") + \
              "?language=" + LANGUAGENAME + "&location=" + self.m_scriptUriLocation
        log.debug( "converting storageURI="+storageURI + " to scriptURI=" + ret )
        return ret

    def scriptURI2StorageUri( self, scriptURI ):
        try:
            # base path to the python script location
            sBaseUri = self.m_baseUri + "/"
            xBaseUri = self.m_uriRefFac.parse(sBaseUri)

            # path to the .py file + "$functionname, arguments, etc
            xStorageUri = self.m_uriRefFac.parse(scriptURI)
            # getName will apply url-decoding to the name, so encode back
            sStorageUri = xStorageUri.getName().replace("%", "%25")
            sStorageUri = sStorageUri.replace( "|", "/" )

            # path to the .py file, relative to the base
            funcNameStart = sStorageUri.find("$")
            if funcNameStart != -1:
                sFileUri = sStorageUri[0:funcNameStart]
                sFuncName = sStorageUri[funcNameStart+1:]
            else:
                sFileUri = sStorageUri

            xFileUri = self.m_uriRefFac.parse(sFileUri)
            if not xFileUri:
                message = "pythonscript: invalid relative uri '" + sFileUri+ "'"
                log.debug( message )
                raise RuntimeException( message, self.ctx )

            if not xFileUri.hasRelativePath():
                message = "pythonscript: an absolute uri is invalid '" + sFileUri+ "'"
                log.debug( message )
                raise RuntimeException( message, self.ctx )

            # absolute path to the .py file
            xAbsScriptUri = self.m_uriRefFac.makeAbsolute(xBaseUri, xFileUri, True, RETAIN)
            sAbsScriptUri = xAbsScriptUri.getUriReference()

            # ensure py file is under the base path
            if not sAbsScriptUri.startswith(sBaseUri):
                message = "pythonscript: storage uri '" + sAbsScriptUri + "' not in base uri '" + self.m_baseUri + "'"
                log.debug( message )
                raise RuntimeException( message, self.ctx )

            ret = sAbsScriptUri
            if funcNameStart != -1:
                ret = ret + "$" + sFuncName
            log.debug( "converting scriptURI="+scriptURI + " to storageURI=" + ret )
            return ret
        except UnoException as e:
            log.error( "error during converting scriptURI="+scriptURI + ": " + e.Message)
            raise RuntimeException( "pythonscript:scriptURI2StorageUri: " + e.Message, self.ctx )
        except Exception as e:
            log.error( "error during converting scriptURI="+scriptURI + ": " + str(e))
            raise RuntimeException( "pythonscript:scriptURI2StorageUri: " + str(e), self.ctx )


class ModuleEntry:
    def __init__( self, lastRead, module ):
        self.lastRead = lastRead
        self.module = module

def hasChanged( oldDate, newDate ):
    return newDate.Year > oldDate.Year or \
           newDate.Month > oldDate.Month or \
           newDate.Day > oldDate.Day or \
           newDate.Hours > oldDate.Hours or \
           newDate.Minutes > oldDate.Minutes or \
           newDate.Seconds > oldDate.Seconds or \
           newDate.NanoSeconds > oldDate.NanoSeconds

def ensureSourceState( code ):
    if code.endswith(b"\n"):
        code = code + b"\n"
    code = code.replace(b"\r", b"")
    return code


def checkForPythonPathBesideScript( url ):
    if url.startswith( "file:" ):
        path = unohelper.fileUrlToSystemPath( url+"/pythonpath.zip" );
        log.log( LogLevel.DEBUG,  "checking for existence of " + path )
        if 1 == os.access( encfile(path), os.F_OK) and not path in sys.path:
            log.log( LogLevel.DEBUG, "adding " + path + " to sys.path" )
            sys.path.append( path )

        path = unohelper.fileUrlToSystemPath( url+"/pythonpath" );
        log.log( LogLevel.DEBUG,  "checking for existence of " + path )
        if 1 == os.access( encfile(path), os.F_OK) and not path in sys.path:
            log.log( LogLevel.DEBUG, "adding " + path + " to sys.path" )
            sys.path.append( path )


class ScriptContext(unohelper.Base):
    def __init__( self, ctx, doc, inv ):
        self.ctx = ctx
        self.doc = doc
        self.inv = inv

   # XScriptContext
    def getDocument(self):
        if self.doc:
            return self.doc
        return self.getDesktop().getCurrentComponent()

    def getDesktop(self):
        return self.ctx.ServiceManager.createInstanceWithContext(
            "com.sun.star.frame.Desktop", self.ctx )

    def getComponentContext(self):
        return self.ctx

    def getInvocationContext(self):
        return self.inv

#----------------------------------
# Global Module Administration
# does not fit together with script
# engine lifetime management
#----------------------------------
#g_scriptContext = ScriptContext( uno.getComponentContext(), None )
#g_modules = {}
#def getModuleByUrl( url, sfa ):
#    entry =  g_modules.get(url)
#    load = True
#    lastRead = sfa.getDateTimeModified( url )
#    if entry:
#        if hasChanged( entry.lastRead, lastRead ):
#            log.debug("file " + url + " has changed, reloading")
#        else:
#            load = False
#
#    if load:
#        log.debug( "opening >" + url + "<" )
#
#        code = readTextFromStream( sfa.openFileRead( url ) )

        # execute the module
#        entry = ModuleEntry( lastRead, types.ModuleType("ooo_script_framework") )
#        entry.module.__dict__[GLOBAL_SCRIPTCONTEXT_NAME] = g_scriptContext
#        entry.module.__file__ = url
#        exec code in entry.module.__dict__
#        g_modules[ url ] = entry
#        log.debug( "mapped " + url + " to " + str( entry.module ) )
#    return entry.module

class ProviderContext:
    def __init__( self, storageType, sfa, uriHelper, scriptContext ):
        self.storageType = storageType
        self.sfa = sfa
        self.uriHelper = uriHelper
        self.scriptContext = scriptContext
        self.modules = {}
        self.rootUrl = None
        self.mapPackageName2Path = None

    def getTransientPartFromUrl( self, url ):
        rest = url.replace( self.rootUrl , "",1 ).replace( "/","",1)
        return rest[0:rest.find("/")]

    def getPackageNameFromUrl( self, url ):
        rest = url.replace( self.rootUrl , "",1 ).replace( "/","",1)
        start = rest.find("/") +1
        return rest[start:rest.find("/",start)]


    def removePackageByUrl( self, url ):
        items = self.mapPackageName2Path.items()
        for i in items:
            if url in i[1].paths:
                self.mapPackageName2Path.pop(i[0])
                break

    def addPackageByUrl( self, url ):
        packageName = self.getPackageNameFromUrl( url )
        transientPart = self.getTransientPartFromUrl( url )
        log.debug( "addPackageByUrl : " + packageName + ", " + transientPart + "("+url+")" + ", rootUrl="+self.rootUrl )
        if packageName in self.mapPackageName2Path:
            package = self.mapPackageName2Path[ packageName ]
            package.paths = package.paths + (url, )
        else:
            package = Package( (url,), transientPart)
            self.mapPackageName2Path[ packageName ] = package

    def isUrlInPackage( self, url ):
        values = self.mapPackageName2Path.values()
        for i in values:
#           print ("checking " + url + " in " + str(i.paths))
            if url in i.paths:
               return True
#        print ("false")
        return False

    def setPackageAttributes( self, mapPackageName2Path, rootUrl ):
        self.mapPackageName2Path = mapPackageName2Path
        self.rootUrl = rootUrl

    def getPersistentUrlFromStorageUrl( self, url ):
        # package name is the second directory
        ret = url
        if self.rootUrl:
            pos = len( self.rootUrl) +1
            ret = url[0:pos]+url[url.find("/",pos)+1:len(url)]
        log.debug( "getPersistentUrlFromStorageUrl " + url +  " -> "+ ret)
        return ret

    def getStorageUrlFromPersistentUrl( self, url):
        ret = url
        if self.rootUrl:
            pos = len(self.rootUrl)+1
            packageName = url[pos:url.find("/",pos+1)]
            package = self.mapPackageName2Path[ packageName ]
            ret = url[0:pos]+ package.transientPathElement + "/" + url[pos:len(url)]
        log.debug( "getStorageUrlFromPersistentUrl " + url + " -> "+ ret)
        return ret

    def getFuncsByUrl( self, url ):
        src = readTextFromStream( self.sfa.openFileRead( url ) )
        checkForPythonPathBesideScript( url[0:url.rfind('/')] )
        src = ensureSourceState( src )

        try:
            code = ast.parse( src )
        except:
            log.isDebugLevel() and log.debug( "pythonscript: getFuncsByUrl: exception while parsing: " + lastException2String())
            raise

        allFuncs = []

        if code is None:
            return allFuncs

        g_exportedScripts = []
        for node in ast.iter_child_nodes(code):
            if isinstance(node, ast.FunctionDef):
                allFuncs.append(node.name)
            elif isinstance(node, ast.Assign):
                for target in node.targets:
                    try:
                        identifier = target.id
                    except AttributeError:
                        identifier = ""
                        pass
                    if identifier == "g_exportedScripts":
                        for value in node.value.elts:
                            g_exportedScripts.append(value.id)
                        return g_exportedScripts

# Python 2 only
#        for node in code.node.nodes:
#            if node.__class__.__name__ == 'Function':
#                allFuncs.append(node.name)
#            elif node.__class__.__name__ == 'Assign':
#                for assignee in node.nodes:
#                    if assignee.name == 'g_exportedScripts':
#                        for item in node.expr.nodes:
#                            if item.__class__.__name__ == 'Name':
#                                g_exportedScripts.append(item.name)
#                        return g_exportedScripts

        return allFuncs

    def getModuleByUrl( self, url ):
        entry =  self.modules.get(url)
        load = True
        lastRead = self.sfa.getDateTimeModified( url )
        if entry:
            if hasChanged( entry.lastRead, lastRead ):
                log.debug( "file " + url + " has changed, reloading" )
            else:
                load = False

        if load:
            log.debug( "opening >" + url + "<" )

            src = readTextFromStream( self.sfa.openFileRead( url ) )
            checkForPythonPathBesideScript( url[0:url.rfind('/')] )
            src = ensureSourceState( src )

            # execute the module
            entry = ModuleEntry( lastRead, types.ModuleType("ooo_script_framework") )
            entry.module.__dict__[GLOBAL_SCRIPTCONTEXT_NAME] = self.scriptContext

            code = None
            if url.startswith( "file:" ):
                code = compile( src, encfile(uno.fileUrlToSystemPath( url ) ), "exec" )
            else:
                code = compile( src, url, "exec" )
            exec(code, entry.module.__dict__)
            entry.module.__file__ = url
            self.modules[ url ] = entry
            log.debug( "mapped " + url + " to " + str( entry.module ) )
        return  entry.module

#--------------------------------------------------
def isScript( candidate ):
    ret = False
    if isinstance( candidate, type(isScript) ):
        ret = True
    return ret

#-------------------------------------------------------
class ScriptBrowseNode( unohelper.Base, XBrowseNode , XPropertySet, XInvocation, XActionListener ):
    def __init__( self, provCtx, uri, fileName, funcName ):
        self.fileName = fileName
        self.funcName = funcName
        self.provCtx = provCtx
        self.uri = uri

    def getName( self ):
        return self.funcName

    def getChildNodes(self):
        return ()

    def hasChildNodes(self):
        return False

    def getType( self):
        return SCRIPT

    def getPropertyValue( self, name ):
        ret = None
        try:
            if name == "URI":
                ret = self.provCtx.uriHelper.getScriptURI(
                    self.provCtx.getPersistentUrlFromStorageUrl( self.uri + "$" + self.funcName ) )
            elif name == "Editable" and ENABLE_EDIT_DIALOG:
                ret = not self.provCtx.sfa.isReadOnly( self.uri )

            log.debug( "ScriptBrowseNode.getPropertyValue called for " + name + ", returning " + str(ret) )
        except:
            log.error( "ScriptBrowseNode.getPropertyValue error " + lastException2String())
            raise

        return ret
    def setPropertyValue( self, name, value ):
        log.debug( "ScriptBrowseNode.setPropertyValue called " + name + "=" +str(value ) )
    def getPropertySetInfo( self ):
        log.debug( "ScriptBrowseNode.getPropertySetInfo called "  )
        return None

    def getIntrospection( self ):
        return None

    def invoke( self, name, params, outparamindex, outparams ):
        if name == "Editable":
            servicename = "com.sun.star.awt.DialogProvider"
            ctx = self.provCtx.scriptContext.getComponentContext()
            dlgprov = ctx.ServiceManager.createInstanceWithContext(
                servicename, ctx )

            self.editor = dlgprov.createDialog(
                "vnd.sun.star.script:" +
                "ScriptBindingLibrary.MacroEditor?location=application")

            code = readTextFromStream(self.provCtx.sfa.openFileRead(self.uri))
            code = ensureSourceState( code )
            self.editor.getControl("EditorTextField").setText(code)

            self.editor.getControl("RunButton").setActionCommand("Run")
            self.editor.getControl("RunButton").addActionListener(self)
            self.editor.getControl("SaveButton").setActionCommand("Save")
            self.editor.getControl("SaveButton").addActionListener(self)

            self.editor.execute()

        return None

    def actionPerformed( self, event ):
        try:
            if event.ActionCommand == "Run":
                code = self.editor.getControl("EditorTextField").getText()
                code = ensureSourceState( code )
                mod = types.ModuleType("ooo_script_framework")
                mod.__dict__[GLOBAL_SCRIPTCONTEXT_NAME] = self.provCtx.scriptContext
                exec(code, mod.__dict__)
                values = mod.__dict__.get( CALLABLE_CONTAINER_NAME , None )
                if not values:
                    values = mod.__dict__.values()

                for i in values:
                    if isScript( i ):
                        i()
                        break

            elif event.ActionCommand == "Save":
                toWrite = uno.ByteSequence(
                    self.editor.getControl("EditorTextField").getText().encode(
                    sys.getdefaultencoding()) )
                copyUrl = self.uri + ".orig"
                self.provCtx.sfa.move( self.uri, copyUrl )
                out = self.provCtx.sfa.openFileWrite( self.uri )
                out.writeBytes( toWrite )
                out.close()
                self.provCtx.sfa.kill( copyUrl )
#                log.debug("Save is not implemented yet")
#                text = self.editor.getControl("EditorTextField").getText()
#                log.debug("Would save: " + text)
        except:
            # TODO: add an error box here!
            log.error( lastException2String() )


    def setValue( self, name, value ):
        return None

    def getValue( self, name ):
        return None

    def hasMethod( self, name ):
        return False

    def hasProperty( self, name ):
        return False


#-------------------------------------------------------
class FileBrowseNode( unohelper.Base, XBrowseNode ):
    def __init__( self, provCtx, uri , name ):
        self.provCtx = provCtx
        self.uri = uri
        self.name = name
        self.funcnames = None

    def getName( self ):
        return self.name

    def getChildNodes(self):
        ret = ()
        try:
            self.funcnames = self.provCtx.getFuncsByUrl( self.uri )

            scriptNodeList = []
            for i in self.funcnames:
                scriptNodeList.append(
                    ScriptBrowseNode(
                    self.provCtx, self.uri, self.name, i ))
            ret = tuple( scriptNodeList )
            log.debug( "returning " +str(len(ret)) + " ScriptChildNodes on " + self.uri )
        except:
            text = lastException2String()
            log.error( "Error while evaluating " + self.uri + ":" + text )
            raise
        return ret

    def hasChildNodes(self):
        try:
            return len(self.getChildNodes()) > 0
        except:
            return False

    def getType( self):
        return CONTAINER



class DirBrowseNode( unohelper.Base, XBrowseNode ):
    def __init__( self, provCtx, name, rootUrl ):
        self.provCtx = provCtx
        self.name = name
        self.rootUrl = rootUrl

    def getName( self ):
        return self.name

    def getChildNodes( self ):
        try:
            log.debug( "DirBrowseNode.getChildNodes called for " + self.rootUrl )
            contents = self.provCtx.sfa.getFolderContents( self.rootUrl, True )
            browseNodeList = []
            for i in contents:
                if i.endswith( ".py" ):
                    log.debug( "adding filenode " + i )
                    browseNodeList.append(
                        FileBrowseNode( self.provCtx, i, i[i.rfind("/")+1:len(i)-3] ) )
                elif self.provCtx.sfa.isFolder( i ) and not i.endswith("/pythonpath"):
                    log.debug( "adding DirBrowseNode " + i )
                    browseNodeList.append( DirBrowseNode( self.provCtx, i[i.rfind("/")+1:len(i)],i))
            return tuple( browseNodeList )
        except Exception as e:
            text = lastException2String()
            log.error( "DirBrowseNode error: " + str(e) + " while evaluating " + self.rootUrl)
            log.error( text)
            return ()

    def hasChildNodes( self ):
        return True

    def getType( self ):
        return CONTAINER

    def getScript( self, uri ):
        log.debug( "DirBrowseNode getScript " + uri + " invoked" )
        raise IllegalArgumentException( "DirBrowseNode couldn't instantiate script " + uri , self , 0 )


class ManifestHandler( XDocumentHandler, unohelper.Base ):
    def __init__( self, rootUrl ):
        self.rootUrl = rootUrl

    def startDocument( self ):
        self.urlList = []

    def endDocument( self ):
        pass

    def startElement( self , name, attlist):
        if name == "manifest:file-entry":
            if attlist.getValueByName( "manifest:media-type" ) == "application/vnd.sun.star.framework-script":
                self.urlList.append(
                    self.rootUrl + "/" + attlist.getValueByName( "manifest:full-path" ) )

    def endElement( self, name ):
        pass

    def characters ( self, chars ):
        pass

    def ignoreableWhitespace( self, chars ):
        pass

    def setDocumentLocator( self, locator ):
        pass

def isPyFileInPath( sfa, path ):
    ret = False
    contents = sfa.getFolderContents( path, True )
    for i in contents:
        if sfa.isFolder(i):
            ret = isPyFileInPath(sfa,i)
        else:
            if i.endswith(".py"):
                ret = True
        if ret:
            break
    return ret

# extracts META-INF directory from
def getPathsFromPackage( rootUrl, sfa ):
    ret = ()
    try:
        fileUrl = rootUrl + "/META-INF/manifest.xml"
        inputStream = sfa.openFileRead( fileUrl )
        parser = uno.getComponentContext().ServiceManager.createInstance( "com.sun.star.xml.sax.Parser" )
        handler = ManifestHandler( rootUrl )
        parser.setDocumentHandler( handler )
        parser.parseStream( InputSource( inputStream , "", fileUrl, fileUrl ) )
        for i in tuple(handler.urlList):
            if not isPyFileInPath( sfa, i ):
                handler.urlList.remove(i)
        ret = tuple( handler.urlList )
    except UnoException:
        text = lastException2String()
        log.debug( "getPathsFromPackage " + fileUrl + " Exception: " +text )
        pass
    return ret


class Package:
    def __init__( self, paths, transientPathElement ):
        self.paths = paths
        self.transientPathElement = transientPathElement

class DummyInteractionHandler( unohelper.Base, XInteractionHandler ):
    def __init__( self ):
        pass
    def handle( self, event):
        log.debug( "pythonscript: DummyInteractionHandler.handle " + str( event ) )

class DummyProgressHandler( unohelper.Base, XProgressHandler ):
    def __init__( self ):
        pass

    def push( self,status ):
        log.debug( "pythonscript: DummyProgressHandler.push " + str( status ) )
    def update( self,status ):
        log.debug( "pythonscript: DummyProgressHandler.update " + str( status ) )
    def pop( self, event ):
        log.debug( "pythonscript: DummyProgressHandler.push " + str( event ) )

class CommandEnvironment(unohelper.Base, XCommandEnvironment):
    def __init__( self ):
        self.progressHandler = DummyProgressHandler()
        self.interactionHandler = DummyInteractionHandler()
    def getInteractionHandler( self ):
        return self.interactionHandler
    def getProgressHandler( self ):
        return self.progressHandler

#maybe useful for debugging purposes
#class ModifyListener( unohelper.Base, XModifyListener ):
#    def __init__( self ):
#        pass
#    def modified( self, event ):
#        log.debug( "pythonscript: ModifyListener.modified " + str( event ) )
#    def disposing( self, event ):
#        log.debug( "pythonscript: ModifyListener.disposing " + str( event ) )

def getModelFromDocUrl(ctx, url):
    """Get document model from document url."""
    doc = None
    args = ("Local", "Office")
    ucb = ctx.getServiceManager().createInstanceWithArgumentsAndContext(
        "com.sun.star.ucb.UniversalContentBroker", args, ctx)
    identifier = ucb.createContentIdentifier(url)
    content = ucb.queryContent(identifier)
    p = Property()
    p.Name = "DocumentModel"
    p.Handle = -1

    c = Command()
    c.Handle = -1
    c.Name = "getPropertyValues"
    c.Argument = uno.Any("[]com.sun.star.beans.Property", (p,))

    env = CommandEnvironment()
    try:
        ret = content.execute(c, 0, env)
        doc = ret.getObject(1, None)
    except Exception as e:
        log.isErrorLevel() and log.error("getModelFromDocUrl: %s" % url)
    return doc

def mapStorageType2PackageContext( storageType ):
    ret = storageType
    if( storageType == "share:uno_packages" ):
        ret = "shared"
    if( storageType == "user:uno_packages" ):
        ret = "user"
    return ret

def getPackageName2PathMap( sfa, storageType ):
    ret = {}
    packageManagerFactory = uno.getComponentContext().getValueByName(
        "/singletons/com.sun.star.deployment.thePackageManagerFactory" )
    packageManager = packageManagerFactory.getPackageManager(
        mapStorageType2PackageContext(storageType))
#    packageManager.addModifyListener( ModifyListener() )
    log.debug( "pythonscript: getPackageName2PathMap start getDeployedPackages" )
    packages = packageManager.getDeployedPackages(
        packageManager.createAbortChannel(), CommandEnvironment( ) )
    log.debug( "pythonscript: getPackageName2PathMap end getDeployedPackages (" + str(len(packages))+")" )

    for i in packages:
        log.debug( "inspecting package " + i.Name + "("+i.Identifier.Value+")" )
        transientPathElement = penultimateElement( i.URL )
        j = expandUri( i.URL )
        paths = getPathsFromPackage( j, sfa )
        if len( paths ) > 0:
            # map package name to url, we need this later
            log.isErrorLevel() and log.error( "adding Package " + transientPathElement + " " + str( paths ) )
            ret[ lastElement( j ) ] = Package( paths, transientPathElement )
    return ret

def penultimateElement( aStr ):
    lastSlash = aStr.rindex("/")
    penultimateSlash = aStr.rindex("/",0,lastSlash-1)
    return  aStr[ penultimateSlash+1:lastSlash ]

def lastElement( aStr):
    return aStr[ aStr.rfind( "/" )+1:len(aStr)]

class PackageBrowseNode( unohelper.Base, XBrowseNode ):
    def __init__( self, provCtx, name, rootUrl ):
        self.provCtx = provCtx
        self.name = name
        self.rootUrl = rootUrl

    def getName( self ):
        return self.name

    def getChildNodes( self ):
        items = self.provCtx.mapPackageName2Path.items()
        browseNodeList = []
        for i in items:
            if len( i[1].paths ) == 1:
                browseNodeList.append(
                    DirBrowseNode( self.provCtx, i[0], i[1].paths[0] ))
            else:
                for j in i[1].paths:
                    browseNodeList.append(
                        DirBrowseNode( self.provCtx, i[0]+"."+lastElement(j), j ) )
        return tuple( browseNodeList )

    def hasChildNodes( self ):
        return len( self.provCtx.mapPackageName2Path ) > 0

    def getType( self ):
        return CONTAINER

    def getScript( self, uri ):
        log.debug( "PackageBrowseNode getScript " + uri + " invoked" )
        raise IllegalArgumentException( "PackageBrowseNode couldn't instantiate script " + uri , self , 0 )




class PythonScript( unohelper.Base, XScript ):
    def __init__( self, func, mod, args ):
        self.func = func
        self.mod = mod
        self.args = args

    def invoke(self, args, out, outindex ):
        log.debug( "PythonScript.invoke " + str( args ) )
        try:
            if (self.args):
                args += self.args
            ret = self.func( *args )
        except UnoException as e:
            # UNO Exception continue to fly ...
            text = lastException2String()
            complete = "Error during invoking function " + \
                str(self.func.__name__) + " in module " + \
                self.mod.__file__ + " (" + text + ")"
            log.debug( complete )
            # some people may beat me up for modifying the exception text,
            # but otherwise office just shows
            # the type name and message text with no more information,
            # this is really bad for most users.
            e.Message = e.Message + " (" + complete + ")"
            raise
        except Exception as e:
            # General python exception are converted to uno RuntimeException
            text = lastException2String()
            complete = "Error during invoking function " + \
                str(self.func.__name__) + " in module " + \
                self.mod.__file__ + " (" + text + ")"
            log.debug( complete )
            raise RuntimeException( complete , self )
        log.debug( "PythonScript.invoke ret = " + str( ret ) )
        return ret, (), ()

def expandUri(  uri ):
    if uri.startswith( "vnd.sun.star.expand:" ):
        uri = uri.replace( "vnd.sun.star.expand:", "",1)
        uri = uno.getComponentContext().getByName(
                    "/singletons/com.sun.star.util.theMacroExpander" ).expandMacros( uri )
    if uri.startswith( "file:" ):
        uri = uno.absolutize("",uri)   # necessary to get rid of .. in uri
    return uri

#--------------------------------------------------------------
class PythonScriptProvider( unohelper.Base, XBrowseNode, XScriptProvider, XNameContainer):
    def __init__( self, ctx, *args ):
        if log.isDebugLevel():
            mystr = ""
            for i in args:
                if len(mystr) > 0:
                    mystr = mystr +","
                mystr = mystr + str(i)
            log.debug( "Entering PythonScriptProvider.ctor" + mystr )

        doc = None
        inv = None
        storageType = ""

        if isinstance(args[0], str):
            storageType = args[0]
            if storageType.startswith( "vnd.sun.star.tdoc" ):
                doc = getModelFromDocUrl(ctx, storageType)
        else:
            inv = args[0]
            try:
                doc = inv.ScriptContainer
                content = ctx.getServiceManager().createInstanceWithContext(
                    "com.sun.star.frame.TransientDocumentsDocumentContentFactory",
                    ctx).createDocumentContent(doc)
                storageType = content.getIdentifier().getContentIdentifier()
            except Exception as e:
                text = lastException2String()
                log.error( text )

        isPackage = storageType.endswith( ":uno_packages" )

        try:
#            urlHelper = ctx.ServiceManager.createInstanceWithArgumentsAndContext(
#                "com.sun.star.script.provider.ScriptURIHelper", (LANGUAGENAME, storageType), ctx)
            urlHelper = MyUriHelper( ctx, storageType )
            log.debug( "got urlHelper " + str( urlHelper ) )

            rootUrl = expandUri( urlHelper.getRootStorageURI() )
            log.debug( storageType + " transformed to " + rootUrl )

            ucbService = "com.sun.star.ucb.SimpleFileAccess"
            sfa = ctx.ServiceManager.createInstanceWithContext( ucbService, ctx )
            if not sfa:
                log.debug("PythonScriptProvider couldn't instantiate " +ucbService)
                raise RuntimeException(
                    "PythonScriptProvider couldn't instantiate " +ucbService, self)
            self.provCtx = ProviderContext(
                storageType, sfa, urlHelper, ScriptContext( uno.getComponentContext(), doc, inv ) )
            if isPackage:
                mapPackageName2Path = getPackageName2PathMap( sfa, storageType )
                self.provCtx.setPackageAttributes( mapPackageName2Path , rootUrl )
                self.dirBrowseNode = PackageBrowseNode( self.provCtx, LANGUAGENAME, rootUrl )
            else:
                self.dirBrowseNode = DirBrowseNode( self.provCtx, LANGUAGENAME, rootUrl )

        except Exception as e:
            text = lastException2String()
            log.debug( "PythonScriptProvider could not be instantiated because of : " + text )
            raise e

    def getName( self ):
        return self.dirBrowseNode.getName()

    def getChildNodes( self ):
        return self.dirBrowseNode.getChildNodes()

    def hasChildNodes( self ):
        return self.dirBrowseNode.hasChildNodes()

    def getType( self ):
        return self.dirBrowseNode.getType()

    # retrieve function args in parenthesis
    def getFunctionArguments(self, func_signature):
        nOpenParenthesis = func_signature.find( "(" )
        if -1 == nOpenParenthesis:
            function_name = func_signature
            arguments = None
        else:
            function_name = func_signature[0:nOpenParenthesis]
            arg_part = func_signature[nOpenParenthesis+1:len(func_signature)]
            nCloseParenthesis = arg_part.find( ")" )
            if -1 == nCloseParenthesis:
                raise IllegalArgumentException( "PythonLoader: mismatch parenthesis " + func_signature, self, 0 )
            arguments = arg_part[0:nCloseParenthesis].strip()
            if arguments == "":
                arguments = None
            else:
                arguments = tuple([x.strip().strip('"') for x in arguments.split(",")])
        return function_name, arguments

    def getScript( self, scriptUri ):
        try:
            log.debug( "getScript " + scriptUri + " invoked")

            storageUri = self.provCtx.getStorageUrlFromPersistentUrl(
                self.provCtx.uriHelper.getStorageURI(scriptUri) );
            log.debug( "getScript: storageUri = " + storageUri)
            fileUri = storageUri[0:storageUri.find( "$" )]
            funcName = storageUri[storageUri.find( "$" )+1:len(storageUri)]

            # retrieve arguments in parenthesis
            funcName, funcArgs = self.getFunctionArguments(funcName)
            log.debug( " getScript : parsed funcname " + str(funcName) )
            log.debug( " getScript : func args " + str(funcArgs) )

            mod = self.provCtx.getModuleByUrl( fileUri )
            log.debug( " got mod " + str(mod) )

            func = mod.__dict__[ funcName ]

            log.debug( "got func " + str( func ) )
            return PythonScript( func, mod, funcArgs )
        except:
            text = lastException2String()
            log.error( text )
            raise ScriptFrameworkErrorException( text, self, scriptUri, LANGUAGENAME, 0 )


    # XServiceInfo
    def getSupportedServices( self ):
        return g_ImplementationHelper.getSupportedServices(g_implName)

    def supportsService( self, ServiceName ):
        return g_ImplementationHelper.supportsService( g_implName, ServiceName )

    def getImplementationName(self):
        return g_implName

    def getByName( self, name ):
        log.debug( "getByName called" + str( name ))
        return None


    def getElementNames( self ):
        log.debug( "getElementNames called")
        return ()

    def hasByName( self, name ):
        try:
            log.debug( "hasByName called " + str( name ))
            uri = expandUri(name)
            ret = self.provCtx.isUrlInPackage( uri )
            log.debug( "hasByName " + uri + " " +str( ret ) )
            return ret
        except:
            text = lastException2String()
            log.debug( "Error in hasByName:" +  text )
            return False

    def removeByName( self, name ):
        log.debug( "removeByName called" + str( name ))
        uri = expandUri( name )
        if self.provCtx.isUrlInPackage( uri ):
            self.provCtx.removePackageByUrl( uri )
        else:
            log.debug( "removeByName unknown uri " + str( name ) + ", ignoring" )
            raise NoSuchElementException( uri + "is not in package" , self )
        log.debug( "removeByName called" + str( uri ) + " successful" )

    def insertByName( self, name, value ):
        log.debug( "insertByName called " + str( name ) + " " + str( value ))
        uri = expandUri( name )
        if isPyFileInPath( self.provCtx.sfa, uri ):
            self.provCtx.addPackageByUrl( uri )
        else:
            # package is no python package ...
            log.debug( "insertByName: no python files in " + str( uri ) + ", ignoring" )
            raise IllegalArgumentException( uri + " does not contain .py files", self, 1 )
        log.debug( "insertByName called " + str( uri ) + " successful" )

    def replaceByName( self, name, value ):
        log.debug( "replaceByName called " + str( name ) + " " + str( value ))
        uri = expandUri( name )
        self.removeByName( name )
        self.insertByName( name, value )
        log.debug( "replaceByName called" + str( uri ) + " successful" )

    def getElementType( self ):
        log.debug( "getElementType called" )
        return uno.getTypeByName( "void" )

    def hasElements( self ):
        log.debug( "hasElements got called")
        return False

g_ImplementationHelper.addImplementation( \
    PythonScriptProvider,g_implName, \
    ("com.sun.star.script.provider.LanguageScriptProvider",
     "com.sun.star.script.provider.ScriptProviderFor"+ LANGUAGENAME,),)


log.debug( "pythonscript finished initializing" )

# vim: set shiftwidth=4 softtabstop=4 expandtab: