| 1 | from collective.imstransport.utilities.imsinterchange import IMSReader |
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| 2 | from collective.imstransport.utilities.packagingio import ZipfileReader |
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| 3 | from collective.imstransport.utilities.webct.webctreader import WebCTReader |
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| 4 | from zope.component import getUtility |
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| 5 | from collective.imstransport.utilities.interfaces import IIMSObjectCreator |
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| 6 | |
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| 7 | class IMSWebCTReader(IMSReader): |
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| 8 | """ Create objects from IMS manifest. """ |
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| 9 | |
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| 10 | def readPackage(self, file, context): |
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| 11 | """ Read the manifest """ |
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| 12 | |
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| 13 | source = ZipfileReader(file) |
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| 14 | objDict = {} |
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| 15 | if not source: |
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| 16 | return False, 'Internal error. No source object specified' |
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| 17 | webctreader = WebCTReader() |
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| 18 | manifest = source.readManifest() |
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| 19 | if not manifest: |
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| 20 | raise ManifestError, 'Could not locate manifest file "imsmanifest.xml" in the zip archive.' |
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| 21 | try: |
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| 22 | doc = webctreader.parseManifest(manifest) |
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| 23 | except ExpatError, e: |
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| 24 | raise ManifestError, str(e) |
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| 25 | manifests = webctreader.readManifests(doc) |
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| 26 | |
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| 27 | for manifest in manifests: |
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| 28 | orgs =[] |
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| 29 | manifestmetadata = webctreader.readPackageMetadata(manifest) |
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| 30 | if manifestmetadata.has_key('webcttype') and manifestmetadata['webcttype'] == 'Course': |
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| 31 | objDict['package'] = manifestmetadata |
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| 32 | else: |
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| 33 | orgs = webctreader.readOrganizations(manifest) |
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| 34 | resources = webctreader.readResources(manifest) |
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| 35 | for x in resources: |
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| 36 | resid, restype, reshref = webctreader.readResourceAttributes(x) |
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| 37 | files = webctreader.readFiles(x) |
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| 38 | # If the type is a link |
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| 39 | if manifestmetadata.has_key('webcttype') and manifestmetadata['webcttype'] == 'URL': |
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| 40 | for y in files: |
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| 41 | hash = resid + y |
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| 42 | objDict[hash] = manifestmetadata |
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| 43 | id = self.createIdFromFile(y) |
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| 44 | objDict[hash]['id'] = id |
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| 45 | objDict[hash]['path'] = '' |
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| 46 | objDict[hash]['type'] = 'Link' |
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| 47 | objDict[hash]['remoteUrl'] = y |
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| 48 | elif restype == 'webcontent': |
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| 49 | if not files and reshref: |
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| 50 | files = [reshref,] |
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| 51 | for y in files: |
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| 52 | hash = resid + y |
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| 53 | objDict[hash] = {} |
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| 54 | # Can apply manifest metadata if single file and single resource |
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| 55 | if len(resources) == 1 and len(files) == 1: |
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| 56 | objDict[hash] = manifestmetadata |
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| 57 | if len(files) == 1: |
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| 58 | # If it is listed in the org section |
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| 59 | if orgs.has_key(resid): |
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| 60 | objDict[hash]['excludeFromNav'] = False |
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| 61 | # Use 'and' as opposed to 'or' to avoid KeyError |
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| 62 | if not (objDict[hash].has_key('title') and objDict[hash]['title']): |
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| 63 | objDict[hash]['title'] = orgs[resid] |
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| 64 | else: |
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| 65 | objDict[hash]['excludeFromNav'] = True |
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| 66 | objDict[hash]['file'] = y |
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| 67 | objDict[hash]['type'] = self.determineType(objDict[hash], y) |
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| 68 | # If it is just a lowly file |
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| 69 | else: |
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| 70 | objDict[hash]['excludeFromNav'] = True |
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| 71 | objDict[hash]['file'] = y |
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| 72 | objDict[hash]['type'] = self.determineType(objDict[hash], y) |
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| 73 | # Add to all files |
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| 74 | id = self.createIdFromFile(y) |
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| 75 | objDict[hash]['id'] = id |
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| 76 | if not (objDict[hash].has_key('title') and objDict[hash]['title']): |
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| 77 | objDict[hash]['title'] = id |
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| 78 | objDict[hash]['path'] = self.createPathFromFile(y) |
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| 79 | objcreator = getUtility(IIMSObjectCreator) |
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| 80 | objcreator.createObjects(objDict, context, source) |
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