X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/ac2e9ceea7cf6a59810081d52b64d9c22861c62d..1a65a8d09e07f68e9dde662430719cfa84a0fd77:/apps/api/handlers/library_handlers.py diff --git a/apps/api/handlers/library_handlers.py b/apps/api/handlers/library_handlers.py index 86aef21b..488c2d40 100644 --- a/apps/api/handlers/library_handlers.py +++ b/apps/api/handlers/library_handlers.py @@ -1,4 +1,6 @@ # -*- encoding: utf-8 -*- +import os.path +import logging __author__= "Łukasz Rekucki" __date__ = "$2009-09-25 15:49:50$" @@ -6,25 +8,37 @@ __doc__ = "Module documentation." from piston.handler import BaseHandler, AnonymousBaseHandler +import re +from datetime import date + +from django.core.urlresolvers import reverse +from django.utils import simplejson as json +from django.db import IntegrityError import librarian import librarian.html +from librarian import dcparser, parser + +from wlrepo import * +from explorer.models import PullRequest, GalleryForDocument + +# internal imports import api.forms as forms -from datetime import date +import api.response as response +from api.utils import validate_form, hglibrary, natural_order +from api.models import PartCache -from django.core.urlresolvers import reverse +# +import settings -from wlrepo import RevisionNotFound, LibraryException, DocumentAlreadyExists -from librarian import dcparser -import api.response as response -from api.utils import validate_form, hglibrary +log = logging.getLogger('platforma.api') -from explorer.models import PullRequest # # Document List Handlers # +# TODO: security check class BasicLibraryHandler(AnonymousBaseHandler): allowed_methods = ('GET',) @@ -38,19 +52,50 @@ class BasicLibraryHandler(AnonymousBaseHandler): return {'documents' : document_list} +# +# This handler controlls the document collection +# class LibraryHandler(BaseHandler): allowed_methods = ('GET', 'POST') anonymous = BasicLibraryHandler + @hglibrary def read(self, request, lib): """Return the list of documents.""" - document_list = [{ - 'url': reverse('document_view', args=[docid]), - 'name': docid } for docid in lib.documents() ] - - return {'documents' : document_list } + documents = {} + + for docid in lib.documents(): + documents[docid] = { + 'url': reverse('document_view', args=[docid]), + 'name': docid, + 'parts': [] + } + + parts = PartCache.objects.defer('part_id')\ + .values_list('part_id', 'document_id').distinct() + + document_tree = dict(documents) + + for part, docid in parts: + # this way, we won't display broken links + if not documents.has_key(part): + log.info("NOT FOUND: %s", part) + continue + + parent = documents[docid] + child = documents[part] + + # not top-level anymore + document_tree.pop(part) + parent['parts'].append(child) + + for doc in documents.itervalues(): + doc['parts'].sort(key=natural_order(lambda d: d['name'])) + + return {'documents': sorted(document_tree.itervalues(), + key=natural_order(lambda d: d['name']) ) } @validate_form(forms.DocumentUploadForm, 'POST') @hglibrary @@ -62,6 +107,9 @@ class LibraryHandler(BaseHandler): else: data = request.FILES['ocr_file'].read().decode('utf-8') + if data is None: + return response.BadRequest().django_response('You must pass ocr_data or ocr_file.') + if form.cleaned_data['generate_dc']: data = librarian.wrap_text(data, unicode(date.today())) @@ -70,7 +118,7 @@ class LibraryHandler(BaseHandler): try: lock = lib.lock() try: - print "DOCID", docid + log.info("DOCID %s", docid) doc = lib.document_create(docid) # document created, but no content yet @@ -78,9 +126,10 @@ class LibraryHandler(BaseHandler): doc = doc.quickwrite('xml', data.encode('utf-8'), '$AUTO$ XML data uploaded.', user=request.user.username) except Exception,e: + import traceback # rollback branch creation lib._rollback() - raise LibraryException("Exception occured:" + repr(e)) + raise LibraryException(traceback.format_exc()) url = reverse('document_view', args=[doc.id]) @@ -93,12 +142,16 @@ class LibraryHandler(BaseHandler): finally: lock.release() except LibraryException, e: - return response.InternalError().django_response(\ - {'exception': repr(e) }) + import traceback + return response.InternalError().django_response({ + "reason": traceback.format_exc() + }) except DocumentAlreadyExists: # Document is already there - return response.EntityConflict().django_response(\ - {"reason": "Document %s already exists." % docid}) + return response.EntityConflict().django_response({ + "reason": "already-exists", + "message": "Document already exists." % docid + }) # # Document Handlers @@ -115,9 +168,9 @@ class BasicDocumentHandler(AnonymousBaseHandler): result = { 'name': doc.id, - 'html_url': reverse('dochtml_view', args=[doc.id,doc.revision]), - 'text_url': reverse('doctext_view', args=[doc.id,doc.revision]), - 'dc_url': reverse('docdc_view', args=[doc.id,doc.revision]), + 'html_url': reverse('dochtml_view', args=[doc.id]), + 'text_url': reverse('doctext_view', args=[doc.id]), + 'dc_url': reverse('docdc_view', args=[doc.id]), 'public_revision': doc.revision, } @@ -133,22 +186,29 @@ class DocumentHandler(BaseHandler): @hglibrary def read(self, request, docid, lib): """Read document's meta data""" + log.info(u"Read %s (%s)" % (docid, type(docid)) ) try: doc = lib.document(docid) udoc = doc.take(request.user.username) - except RevisionNotFound: - return request.EnityNotFound().django_response() + except RevisionNotFound, e: + return response.EntityNotFound().django_response({ + 'exception': type(e), 'message': e.message, + 'docid': docid }) # is_shared = udoc.ancestorof(doc) # is_uptodate = is_shared or shared.ancestorof(document) result = { 'name': udoc.id, - 'html_url': reverse('dochtml_view', args=[udoc.id,udoc.revision]), - 'text_url': reverse('doctext_view', args=[udoc.id,udoc.revision]), - 'dc_url': reverse('docdc_view', args=[udoc.id,udoc.revision]), + 'html_url': reverse('dochtml_view', args=[udoc.id]), + 'text_url': reverse('doctext_view', args=[udoc.id]), + 'dc_url': reverse('docdc_view', args=[udoc.id]), + 'gallery_url': reverse('docgallery_view', args=[udoc.id]), + 'merge_url': reverse('docmerge_view', args=[udoc.id]), 'user_revision': udoc.revision, - 'public_revision': doc.revision, + 'user_timestamp': udoc.revision.timestamp, + 'public_revision': doc.revision, + 'public_timestamp': doc.revision.timestamp, } return result @@ -160,52 +220,137 @@ class DocumentHandler(BaseHandler): # # # - class DocumentHTMLHandler(BaseHandler): - allowed_methods = ('GET', 'PUT') + allowed_methods = ('GET') @hglibrary - def read(self, request, docid, revision, lib): + def read(self, request, docid, lib, stylesheet='partial'): """Read document as html text""" try: + revision = request.GET.get('revision', 'latest') + if revision == 'latest': document = lib.document(docid) else: document = lib.document_for_rev(revision) - return librarian.html.transform(document.data('xml')) - except RevisionNotFound: - return response.EntityNotFound().django_response() + if document.id != docid: + return response.BadRequest().django_response({'reason': 'name-mismatch', + 'message': 'Provided revision refers, to document "%s", but provided "%s"' % (document.id, docid) }) + + return librarian.html.transform(document.data('xml'), is_file=False, \ + parse_dublincore=False, stylesheet=stylesheet,\ + options={ + "with-paths": 'boolean(1)', + }) + + except (EntryNotFound, RevisionNotFound), e: + return response.EntityNotFound().django_response({ + 'reason': 'not-found', 'message': e.message}) + except librarian.ParseError, e: + return response.InternalError().django_response({ + 'reason': 'xml-parse-error', 'message': e.message }) + +# +# Image Gallery +# + +class DocumentGalleryHandler(BaseHandler): + allowed_methods = ('GET') + + + def read(self, request, docid): + """Read meta-data about scans for gallery of this document.""" + galleries = [] + from urllib import quote + + for assoc in GalleryForDocument.objects.filter(document=docid): + dirpath = os.path.join(settings.MEDIA_ROOT, assoc.subpath) + + if not os.path.isdir(dirpath): + log.warn(u"[WARNING]: missing gallery %s", dirpath) + continue + + gallery = {'name': assoc.name, 'pages': []} + + for file in os.listdir(dirpath): + if not isinstance(file, unicode): + log.warn(u"File %r is gallery %r is not unicode. Ommiting."\ + % (file, dirpath) ) + continue + + name, ext = os.path.splitext(os.path.basename(file)) + + if ext.lower() not in [u'.png', u'.jpeg', u'.jpg']: + log.info(u"Ignoring: %s %s", name, ext) + continue + + url = settings.MEDIA_URL + assoc.subpath + u'/' + file; + gallery['pages'].append( quote(url.encode('utf-8')) ) + + gallery['pages'].sort() + galleries.append(gallery) + + return galleries # # Document Text View # + +XINCLUDE_REGEXP = r"""<(?:\w+:)?include\s+[^>]*?href=("|')wlrepo://(?P[^\1]+?)\1\s*[^>]*?>""" +# +# +# + class DocumentTextHandler(BaseHandler): - allowed_methods = ('GET', 'PUT') + allowed_methods = ('GET', 'POST') @hglibrary - def read(self, request, docid, revision, lib): - """Read document as raw text""" + def read(self, request, docid, lib): + """Read document as raw text""" + revision = request.GET.get('revision', 'latest') + part = request.GET.get('part', False) + try: if revision == 'latest': document = lib.document(docid) else: document = lib.document_for_rev(revision) + + if document.id != docid: + return response.BadRequest().django_response({'reason': 'name-mismatch', + 'message': 'Provided revision is not valid for this document'}) # TODO: some finer-grained access control - return document.data('xml') - except RevisionNotFound: - return response.EntityNotFound().django_response() + if part is False: + # we're done :) + return document.data('xml') + else: + xdoc = parser.WLDocument.from_string(document.data('xml'),\ + parse_dublincore=False) + ptext = xdoc.part_as_text(part) + + if ptext is None: + return response.EntityNotFound().django_response({ + 'reason': 'no-part-in-document' + }) + + return ptext + except librarian.ParseError: + return response.EntityNotFound().django_response({ + 'reason': 'invalid-document-state', + 'exception': type(e), 'message': e.message + }) + except (EntryNotFound, RevisionNotFound), e: + return response.EntityNotFound().django_response({ + 'reason': 'not-found', + 'exception': type(e), 'message': e.message + }) @hglibrary - def update(self, request, docid, revision, lib): + def create(self, request, docid, lib): try: - data = request.PUT['contents'] - - if request.PUT.has_key('message'): - msg = u"$USER$ " + request.PUT['message'] - else: - msg = u"$AUTO$ XML content update." + revision = request.POST['revision'] current = lib.document(docid, request.user.username) orig = lib.document_for_rev(revision) @@ -216,21 +361,85 @@ class DocumentTextHandler(BaseHandler): "provided_revision": orig.revision, "latest_revision": current.revision }) - ndoc = current.quickwrite('xml', data, msg) + if request.POST.has_key('message'): + msg = u"$USER$ " + request.POST['message'] + else: + msg = u"$AUTO$ XML content update." + + if request.POST.has_key('contents'): + data = request.POST['contents'] + else: + if not request.POST.has_key('chunks'): + # bad request + return response.BadRequest().django_response({'reason': 'invalid-arguments', + 'message': 'No contents nor chunks specified.'}) + + # TODO: validate + parts = json.loads(request.POST['chunks']) + xdoc = parser.WLDocument.from_string(current.data('xml')) + + errors = xdoc.merge_chunks(parts) + + if len(errors): + return response.EntityConflict().django_response({ + "reason": "invalid-chunks", + "message": "Unable to merge following parts into the document: %s " % ",".join(errors) + }) + + data = xdoc.serialize() + + # try to find any Xinclude tags + includes = [m.groupdict()['link'] for m in (re.finditer(\ + XINCLUDE_REGEXP, data, flags=re.UNICODE) or []) ] + + log.info("INCLUDES: %s", includes) + + # TODO: provide useful routines to make this simpler + def xml_update_action(lib, resolve): + try: + f = lib._fileopen(resolve('parts'), 'r') + stored_includes = json.loads(f.read()) + f.close() + except: + stored_includes = [] + + if stored_includes != includes: + f = lib._fileopen(resolve('parts'), 'w+') + f.write(json.dumps(includes)) + f.close() + + lib._fileadd(resolve('parts')) + + # update the parts cache + PartCache.update_cache(docid, current.owner,\ + stored_includes, includes) + + # now that the parts are ok, write xml + f = lib._fileopen(resolve('xml'), 'w+') + f.write(data.encode('utf-8')) + f.close() + + ndoc = None + ndoc = current.invoke_and_commit(\ + xml_update_action, lambda d: (msg, current.owner) ) try: # return the new revision number - return { + return response.SuccessAllOk().django_response({ "document": ndoc.id, "subview": "xml", "previous_revision": current.revision, - "updated_revision": ndoc.revision - } + "revision": ndoc.revision, + 'timestamp': ndoc.revision.timestamp, + "url": reverse("doctext_view", args=[ndoc.id]) + }) except Exception, e: - lib._rollback() + if ndoc: lib._rollback() raise e except RevisionNotFound, e: - return response.EntityNotFound().django_response(e) + return response.EntityNotFound(mimetype="text/plain").\ + django_response(e.message) + # # Dublin Core handlers @@ -238,27 +447,37 @@ class DocumentTextHandler(BaseHandler): # @requires librarian # class DocumentDublinCoreHandler(BaseHandler): - allowed_methods = ('GET', 'PUT') + allowed_methods = ('GET', 'POST') @hglibrary - def read(self, request, docid, revision, lib): + def read(self, request, docid, lib): """Read document as raw text""" try: + revision = request.GET.get('revision', 'latest') + if revision == 'latest': doc = lib.document(docid) else: doc = lib.document_for_rev(revision) + + + if document.id != docid: + return response.BadRequest().django_response({'reason': 'name-mismatch', + 'message': 'Provided revision is not valid for this document'}) bookinfo = dcparser.BookInfo.from_string(doc.data('xml')) return bookinfo.serialize() - except RevisionNotFound: - return response.EntityNotFound().django_response() + except (EntryNotFound, RevisionNotFound), e: + return response.EntityNotFound().django_response({ + 'exception': type(e), 'message': e.message}) @hglibrary - def update(self, request, docid, revision, lib): + def create(self, request, docid, lib): try: - bi_json = request.PUT['contents'] - if request.PUT.has_key('message'): + bi_json = request.POST['contents'] + revision = request.POST['revision'] + + if request.POST.has_key('message'): msg = u"$USER$ " + request.PUT['message'] else: msg = u"$AUTO$ Dublin core update." @@ -286,10 +505,12 @@ class DocumentDublinCoreHandler(BaseHandler): "document": ndoc.id, "subview": "dc", "previous_revision": current.revision, - "updated_revision": ndoc.revision + "revision": ndoc.revision, + 'timestamp': ndoc.revision.timestamp, + "url": reverse("docdc_view", args=[ndoc.id]) } except Exception, e: - lib._rollback() + if ndoc: lib._rollback() raise e except RevisionNotFound: return response.EntityNotFound().django_response() @@ -335,41 +556,50 @@ class MergeHandler(BaseHandler): "provided": target_rev, "latest": udoc.revision }) - if not request.user.has_perm('explorer.book.can_share'): - # User is not permitted to make a merge, right away - # So we instead create a pull request in the database - prq = PullRequest( - comitter=request.user, - document=docid, - source_revision = str(udoc.revision), - status="N", - comment = form.cleaned_data['comment'] or '$AUTO$ Document shared.' - ) - - prq.save() - return response.RequestAccepted().django_response(\ - ticket_status=prq.status, \ - ticket_uri=reverse("pullrequest_view", args=[prq.id]) ) - - if form.cleanded_data['type'] == 'update': + if form.cleaned_data['type'] == 'update': # update is always performed from the file branch # to the user branch success, changed = udoc.update(request.user.username) - if form.cleanded_data['type'] == 'share': - success, changed = udoc.share(form.cleaned_data['comment']) + if form.cleaned_data['type'] == 'share': + if not request.user.has_perm('explorer.document.can_share'): + # User is not permitted to make a merge, right away + # So we instead create a pull request in the database + try: + prq, created = PullRequest.objects.get_or_create( + source_revision = str(udoc.revision), + defaults = { + 'comitter': request.user, + 'document': docid, + 'status': "N", + 'comment': form.cleaned_data['message'] or '$AUTO$ Document shared.', + } + ) + + return response.RequestAccepted().django_response(\ + ticket_status=prq.status, \ + ticket_uri=reverse("pullrequest_view", args=[prq.id]) ) + except IntegrityError: + return response.EntityConflict().django_response({ + 'reason': 'request-already-exist' + }) + else: + success, changed = udoc.share(form.cleaned_data['message']) if not success: - return response.EntityConflict().django_response() + return response.EntityConflict().django_response({ + 'reason': 'merge-failure', + }) if not changed: return response.SuccessNoContent().django_response() - new_udoc = udoc.latest() + nudoc = udoc.latest() return response.SuccessAllOk().django_response({ - "name": udoc.id, + "name": nudoc.id, "parent_user_resivion": udoc.revision, "parent_revision": doc.revision, - "revision": udoc.revision, - }) \ No newline at end of file + "revision": nudoc.revision, + 'timestamp': nudoc.revision.timestamp, + })