-import os.path
-# -*- encoding: utf-8 -*-
-
-__author__= "Łukasz Rekucki"
-__date__ = "$2009-09-25 15:49:50$"
-__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
-
-import librarian
-import librarian.html
-from librarian import dcparser
-
-from wlrepo import *
-from explorer.models import PullRequest, GalleryForDocument
-
-# internal imports
-import api.forms as forms
-import api.response as response
-from api.utils import validate_form, hglibrary, natural_order
-from api.models import PartCache
-
-#
-import settings
-
-#
-# Document List Handlers
-#
-class BasicLibraryHandler(AnonymousBaseHandler):
- allowed_methods = ('GET',)
-
- @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}
-
-
-class LibraryHandler(BaseHandler):
- allowed_methods = ('GET', 'POST')
- anonymous = BasicLibraryHandler
-
- @hglibrary
- def read(self, request, lib):
- """Return the list of documents."""
-
- documents = {}
-
- for docid in lib.documents():
- docid = docid.decode('utf-8')
- 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):
- print "NOT FOUND:", part
- continue
-
- parent = documents[docid]
- child = documents[part]
-
- # not top-level anymore
- document_tree.pop(part)
- parent['parts'].append(child)
-
- # sort the right way
-
-
- 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
- def create(self, request, form, lib):
- """Create a new document."""
-
- if form.cleaned_data['ocr_data']:
- data = form.cleaned_data['ocr_data']
- else:
- data = request.FILES['ocr_file'].read().decode('utf-8')
-
- if form.cleaned_data['generate_dc']:
- data = librarian.wrap_text(data, unicode(date.today()))
-
- docid = form.cleaned_data['bookname']
-
- try:
- lock = lib.lock()
- try:
- print "DOCID", docid
- doc = lib.document_create(docid)
- # document created, but no content yet
-
- try:
- doc = doc.quickwrite('xml', data.encode('utf-8'),
- '$AUTO$ XML data uploaded.', user=request.user.username)
- except Exception,e:
- # rollback branch creation
- lib._rollback()
- raise LibraryException("Exception occured:" + repr(e))
-
- url = reverse('document_view', args=[doc.id])
-
- return response.EntityCreated().django_response(\
- body = {
- 'url': url,
- 'name': doc.id,
- 'revision': doc.revision },
- url = url )
- finally:
- lock.release()
- except LibraryException, e:
- return response.InternalError().django_response(\
- {'exception': repr(e) })
- except DocumentAlreadyExists:
- # Document is already there
- return response.EntityConflict().django_response(\
- {"reason": "Document %s already exists." % docid})
-
-#
-# Document Handlers
-#
-class BasicDocumentHandler(AnonymousBaseHandler):
- allowed_methods = ('GET',)
-
- @hglibrary
- def read(self, request, docid, lib):
- try:
- doc = lib.document(docid)
- except RevisionNotFound:
- return rc.NOT_FOUND
-
- result = {
- 'name': doc.id,
- '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,
- }
-
- return result
-
-#
-# Document Meta Data
-#
-class DocumentHandler(BaseHandler):
- allowed_methods = ('GET', 'PUT')
- anonymous = BasicDocumentHandler
-
- @hglibrary
- def read(self, request, docid, lib):
- """Read document's meta data"""
- try:
- doc = lib.document(docid)
- udoc = doc.take(request.user.username)
- except RevisionNotFound, e:
- return response.EntityNotFound().django_response({
- 'exception': type(e), 'message': e.message})
-
- # 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]),
- '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,
- 'user_timestamp': udoc.revision.timestamp,
- 'public_revision': doc.revision,
- 'public_timestamp': doc.revision.timestamp,
- }
-
- return result
-
- @hglibrary
- def update(self, request, docid, lib):
- """Update information about the document, like display not"""
- return
-#
-#
-#
-class DocumentHTMLHandler(BaseHandler):
- allowed_methods = ('GET')
-
- @hglibrary
- def read(self, request, docid, lib):
- """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)
-
- 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)
- except (EntryNotFound, RevisionNotFound), e:
- return response.EntityNotFound().django_response({
- 'exception': type(e), 'message': e.message})
-
-
-#
-# Image Gallery
-#
-from django.core.files.storage import FileSystemStorage
-
-class DocumentGalleryHandler(BaseHandler):
- allowed_methods = ('GET')
-
- def read(self, request, docid):
- """Read meta-data about scans for gallery of this document."""
- galleries = []
-
- for assoc in GalleryForDocument.objects.filter(document=docid):
- dirpath = os.path.join(settings.MEDIA_ROOT, assoc.subpath)
-
- if not os.path.isdir(dirpath):
- print u"[WARNING]: missing gallery %s" % dirpath
- continue
-
- gallery = {'name': assoc.name, 'pages': []}
-
- for file in sorted(os.listdir(dirpath), key=natural_order()):
- print file
- name, ext = os.path.splitext(os.path.basename(file))
-
- if ext.lower() not in ['.png', '.jpeg', '.jpg']:
- print "Ignoring:", name, ext
- continue
-
- url = settings.MEDIA_URL + assoc.subpath + u'/' + file.decode('utf-8');
- gallery['pages'].append(url)
-
- galleries.append(gallery)
-
- return galleries
-
-#
-# Document Text View
-#
-
-XINCLUDE_REGEXP = r"""<(?:\w+:)?include\s+[^>]*?href=("|')wlrepo://(?P<link>[^\1]+?)\1\s*[^>]*?>"""
-#
-#
-#
-class DocumentTextHandler(BaseHandler):
- allowed_methods = ('GET', 'POST')
-
- @hglibrary
- def read(self, request, docid, lib):
- """Read document as raw text"""
- revision = request.GET.get('revision', 'latest')
- 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 (EntryNotFound, RevisionNotFound), e:
- return response.EntityNotFound().django_response({
- 'exception': type(e), 'message': e.message})
-
- @hglibrary
- def create(self, request, docid, lib):
- try:
- data = request.POST['contents']
- revision = request.POST['revision']
-
- if request.POST.has_key('message'):
- msg = u"$USER$ " + request.POST['message']
- else:
- msg = u"$AUTO$ XML content update."
-
- current = lib.document(docid, request.user.username)
- orig = lib.document_for_rev(revision)
-
- if current != orig:
- return response.EntityConflict().django_response({
- "reason": "out-of-date",
- "provided_revision": orig.revision,
- "latest_revision": current.revision })
-
- # try to find any Xinclude tags
- includes = [m.groupdict()['link'] for m in (re.finditer(\
- XINCLUDE_REGEXP, data, flags=re.UNICODE) or []) ]
-
- print "INCLUDES: ", 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 response.SuccessAllOk().django_response({
- "document": ndoc.id,
- "subview": "xml",
- "previous_revision": current.revision,
- "revision": ndoc.revision,
- 'timestamp': ndoc.revision.timestamp,
- "url": reverse("doctext_view", args=[ndoc.id])
- })
- except Exception, e:
- if ndoc: lib._rollback()
- raise e
- except RevisionNotFound, e:
- return response.EntityNotFound(mimetype="text/plain").\
- django_response(e.message)
-
-
-#
-# Dublin Core handlers
-#
-# @requires librarian
-#
-class DocumentDublinCoreHandler(BaseHandler):
- allowed_methods = ('GET', 'POST')
-
- @hglibrary
- 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 (EntryNotFound, RevisionNotFound), e:
- return response.EntityNotFound().django_response({
- 'exception': type(e), 'message': e.message})
-
- @hglibrary
- def create(self, request, docid, lib):
- try:
- 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."
-
- current = lib.document(docid, request.user.username)
- orig = lib.document_for_rev(revision)
-
- if current != orig:
- return response.EntityConflict().django_response({
- "reason": "out-of-date",
- "provided": orig.revision,
- "latest": current.revision })
-
- xmldoc = parser.WLDocument.from_string(current.data('xml'))
- document.book_info = dcparser.BookInfo.from_json(bi_json)
-
- # zapisz
- ndoc = current.quickwrite('xml', \
- document.serialize().encode('utf-8'),\
- message=msg, user=request.user.username)
-
- try:
- # return the new revision number
- return {
- "document": ndoc.id,
- "subview": "dc",
- "previous_revision": current.revision,
- "revision": ndoc.revision,
- 'timestamp': ndoc.revision.timestamp,
- "url": reverse("docdc_view", args=[ndoc.id])
- }
- except Exception, e:
- if ndoc: lib._rollback()
- raise e
- except RevisionNotFound:
- return response.EntityNotFound().django_response()
-
-class MergeHandler(BaseHandler):
- allowed_methods = ('POST',)
-
- @validate_form(forms.MergeRequestForm, 'POST')
- @hglibrary
- def create(self, request, form, docid, lib):
- """Create a new document revision from the information provided by user"""
-
- target_rev = form.cleaned_data['target_revision']
-
- doc = lib.document(docid)
- udoc = doc.take(request.user.username)
-
- if target_rev == 'latest':
- target_rev = udoc.revision
-
- if str(udoc.revision) != target_rev:
- # user think doesn't know he has an old version
- # of his own branch.
-
- # Updating is teorericly ok, but we need would
- # have to force a refresh. Sharing may be not safe,
- # 'cause it doesn't always result in update.
-
- # In other words, we can't lie about the resource's state
- # So we should just yield and 'out-of-date' conflict
- # and let the client ask again with updated info.
-
- # NOTE: this could result in a race condition, when there
- # are 2 instances of the same user editing the same document.
- # Instance "A" trying to update, and instance "B" always changing
- # the document right before "A". The anwser to this problem is
- # for the "A" to request a merge from 'latest' and then
- # check the parent revisions in response, if he actually
- # merge from where he thinks he should. If not, the client SHOULD
- # update his internal state.
- return response.EntityConflict().django_response({
- "reason": "out-of-date",
- "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['message'] 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.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.cleaned_data['type'] == 'share':
- success, changed = udoc.share(form.cleaned_data['message'])
-
- if not success:
- return response.EntityConflict().django_response({})
-
- if not changed:
- return response.SuccessNoContent().django_response()
-
- new_udoc = udoc.latest()
-
- return response.SuccessAllOk().django_response({
- "name": udoc.id,
- "parent_user_resivion": udoc.revision,
- "parent_revision": doc.revision,
- "revision": ndoc.revision,
- 'timestamp': ndoc.revision.timestamp,
- })
fnp / redakcja.git / blobdiff