# -*- encoding: utf-8 -*-
+import os.path
+
+import logging
+log = logging.getLogger('platforma.api.library')
__author__= "Łukasz Rekucki"
__date__ = "$2009-09-25 15:49:50$"
__doc__ = "Module documentation."
from piston.handler import BaseHandler, AnonymousBaseHandler
-from piston.utils import rc
+from django.http import HttpResponse
-import settings
-import librarian
-import api.forms as forms
from datetime import date
from django.core.urlresolvers import reverse
-from wlrepo import MercurialLibrary, RevisionNotFound
+from django.db import IntegrityError
+
+import librarian
+import librarian.html
+import difflib
+from librarian import dcparser, parser
+
+from wlrepo import *
+from api.models import PullRequest
+from explorer.models import 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, PullRequest
+
+from pygments import highlight
+from pygments.lexers import DiffLexer
+from pygments.formatters import HtmlFormatter
+
+#
+import settings
+
-from librarian import dcparser
+def is_prq(username):
+ return username.startswith('$prq-')
+
+def prq_for_user(username):
+ try:
+ return PullRequest.objects.get(id=int(username[5:]))
+ except:
+ return None
+
+def check_user(request, user):
+ log.info("user: %r, perm: %r" % (request.user, request.user.get_all_permissions()) )
+ #pull request
+ if is_prq(user):
+ if not request.user.has_perm('api.view_prq'):
+ yield response.AccessDenied().django_response({
+ 'reason': 'access-denied',
+ 'message': "You don't have enough priviliges to view pull requests."
+ })
+ # other users
+ elif request.user.username != user:
+ if not request.user.has_perm('api.view_other_document'):
+ yield response.AccessDenied().django_response({
+ 'reason': 'access-denied',
+ 'message': "You don't have enough priviliges to view other people's document."
+ })
+ pass
#
# Document List Handlers
#
+# TODO: security check
class BasicLibraryHandler(AnonymousBaseHandler):
allowed_methods = ('GET',)
- def read(self, request):
- """Return the list of documents."""
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
-
+ @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}
-
+
+#
+# This handler controlls the document collection
+#
class LibraryHandler(BaseHandler):
allowed_methods = ('GET', 'POST')
anonymous = BasicLibraryHandler
- def read(self, request):
+ @hglibrary
+ def read(self, request, lib):
"""Return the list of documents."""
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
- document_list = [{
- 'url': reverse('document_view', args=[docid]),
- 'name': docid } for docid in lib.documents() ]
-
- return {'documents' : document_list }
-
- def create(self, request):
- """Create a new document."""
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
-
- form = forms.DocumentUploadForm(request.POST, request.FILES)
- if not form.is_valid():
- return rc.BAD_REQUEST
-
- f = request.FILES['ocr']
- data = f.read().decode('utf-8')
+ 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
+ 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 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()))
- # TODO: what if the file exists ?
- doc = lib.document_create(form.cleaned_data['bookname'])
- doc.quickwrite('xml', data, '$AUTO$ XML data uploaded.',
- user=request.user.username)
+ docid = form.cleaned_data['bookname']
- return {
- 'url': reverse('document_view', args=[doc.id]),
- 'name': doc.id,
- 'revision': doc.revision }
+ try:
+ lock = lib.lock()
+ try:
+ log.info("DOCID %s", 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:
+ import traceback
+ # rollback branch creation
+ lib._rollback()
+ raise LibraryException(traceback.format_exc())
+
+ 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:
+ import traceback
+ return response.InternalError().django_response({
+ "reason": traceback.format_exc()
+ })
+ except DocumentAlreadyExists:
+ # Document is already there
+ return response.EntityConflict().django_response({
+ "reason": "already-exists",
+ "message": "Document already exists." % docid
+ })
#
# Document Handlers
class BasicDocumentHandler(AnonymousBaseHandler):
allowed_methods = ('GET',)
- def read(self, request, docid):
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
-
- opts = forms.DocumentGetForm(request.GET)
- if not opts.is_valid():
- return rc.BAD_REQUEST
-
- doc = lib.document(docid)
+ @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', docid=doc.id),
- 'latest_rev': doc.revision,
+ 'dc_url': reverse('docdc_view', args=[doc.id]),
+ 'public_revision': doc.revision,
}
return result
+
+class DiffHandler(BaseHandler):
+ allowed_methods = ('GET',)
+
+ @hglibrary
+ def read(self, request, docid, lib):
+ '''Return diff between source_revision and target_revision)'''
+ revision = request.GET.get('revision')
+ if not revision:
+ return ''
+ source_document = lib.document(docid)
+ target_document = lib.document_for_revision(revision)
+ print source_document, target_document
+
+ diff = difflib.unified_diff(
+ source_document.data('xml').splitlines(True),
+ target_document.data('xml').splitlines(True),
+ 'source',
+ 'target')
+
+ s = ''.join(list(diff))
+ return highlight(s, DiffLexer(), HtmlFormatter(cssclass="pastie"))
+
+
#
# Document Meta Data
#
allowed_methods = ('GET', 'PUT')
anonymous = BasicDocumentHandler
- def read(self, request, docid):
- """Read document's meta data"""
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
+ @validate_form(forms.DocumentRetrieveForm, 'GET')
+ @hglibrary
+ def read(self, request, form, docid, lib):
+ """Read document's meta data"""
+ log.info(u"User '%s' wants to edit %s(%s) as %s" % \
+ (request.user.username, docid, form.cleaned_data['revision'], form.cleaned_data['user']) )
- opts = forms.DocumentGetForm(request.GET)
- if not opts.is_valid():
- return rc.BAD_REQUEST
+ user = form.cleaned_data['user'] or request.user.username
+ rev = form.cleaned_data['revision'] or 'latest'
+ for error in check_user(request, user):
+ return error
+
try:
- doc = lib.document(docid)
- udoc = doc.take(request.user.username)
- except RevisionNotFound:
- return rc.NOT_HERE
-
- # is_shared = udoc.ancestorof(doc)
- # is_uptodate = is_shared or shared.ancestorof(document)
+ doc = lib.document(docid, user, rev=rev)
+ except RevisionMismatch, e:
+ # the document exists, but the revision is bad
+ return response.EntityNotFound().django_response({
+ 'reason': 'revision-mismatch',
+ 'message': e.message,
+ 'docid': docid,
+ 'user': user,
+ })
+ except RevisionNotFound, e:
+ # the user doesn't have this document checked out
+ # or some other weird error occured
+ # try to do the checkout
+ try:
+ if user == request.user.username:
+ mdoc = lib.document(docid)
+ doc = mdoc.take(user)
+ elif is_prq(user):
+ prq = prq_for_user(user)
+ # commiter's document
+ prq_doc = lib.document_for_revision(prq.source_revision)
+ doc = prq_doc.take(user)
+ else:
+ return response.EntityNotFound().django_response({
+ 'reason': 'document-not-found',
+ 'message': e.message,
+ 'docid': docid,
+ 'user': user,
+ })
+ except RevisionNotFound, e:
+ return response.EntityNotFound().django_response({
+ 'reason': 'document-not-found',
+ 'message': e.message,
+ 'docid': docid,
+ 'user': user
+ })
- result = {
- 'name': udoc.id,
- 'text_url': reverse('doctext_view', args=[udoc.id]),
- 'dc_url': reverse('docdc_view', args=[udoc.id]),
- 'parts_url': reverse('docparts_view', args=[udoc.id]),
- 'latest_rev': udoc.revision,
- 'latest_shared_rev': doc.revision,
- # 'shared': is_shared,
- # 'up_to_date': is_uptodate,
- }
-
- #if request.GET.get('with_part', 'no') == 'yes':
- # result['parts'] = document.parts()
+ return {
+ 'name': doc.id,
+ 'user': user,
+ 'html_url': reverse('dochtml_view', args=[doc.id]),
+ 'text_url': reverse('doctext_view', args=[doc.id]),
+ # 'dc_url': reverse('docdc_view', args=[doc.id]),
+ 'gallery_url': reverse('docgallery_view', args=[doc.id]),
+ 'merge_url': reverse('docmerge_view', args=[doc.id]),
+ 'revision': doc.revision,
+ 'timestamp': doc.revision.timestamp,
+ # 'public_revision': doc.revision,
+ # 'public_timestamp': doc.revision.timestamp,
+ }
+
+
+# @hglibrary
+# def update(self, request, docid, lib):
+# """Update information about the document, like display not"""
+# return
+#
+#
+#
+class DocumentHTMLHandler(BaseHandler):
+ allowed_methods = ('GET')
- return result
+ @validate_form(forms.DocumentRetrieveForm, 'GET')
+ @hglibrary
+ def read(self, request, form, docid, lib, stylesheet='full'):
+ """Read document as html text"""
+ try:
+ revision = form.cleaned_data['revision']
+ user = form.cleaned_data['user'] or request.user.username
+ document = lib.document_for_revision(revision)
+
+ if document.id != docid:
+ return response.BadRequest().django_response({
+ 'reason': 'name-mismatch',
+ 'message': 'Provided revision is not valid for this document'
+ })
+
+ if document.owner != user:
+ return response.BadRequest().django_response({
+ 'reason': 'user-mismatch',
+ 'message': "Provided revision doesn't belong to user %s" % user
+ })
+
+ for error in check_user(request, user):
+ return error
+
+ 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.ValidationError, e:
+ return response.InternalError().django_response({
+ 'reason': 'xml-non-valid', 'message': e.message or u''})
+ except librarian.ParseError, e:
+ return response.InternalError().django_response({
+ 'reason': 'xml-parse-error', 'message': e.message or u'' })
#
-# Document Text View
+# Image Gallery
#
-class DocumentTextHandler(BaseHandler):
- allowed_methods = ('GET', 'PUT')
+class DocumentGalleryHandler(BaseHandler):
+ allowed_methods = ('GET')
+
+
def read(self, request, docid):
- """Read document as raw text"""
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
- try:
- return lib.document(docid, request.user.username).data('xml')
- except RevisionNotFound:
- return rc.NOT_HERE
+ """Read meta-data about scans for gallery of this document."""
+ galleries = []
+ from urllib import quote
- def update(self, request, docid):
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
- try:
- data = request.PUT['contents']
- prev = request.PUT['revision']
+ 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
- if request.PUT.has_key('message'):
- msg = u"$USER$ " + request.PUT['message']
- else:
- msg = u"$AUTO$ XML content update."
+ gallery = {'name': assoc.name, 'pages': []}
+
+ for file in os.listdir(dirpath):
+ if not isinstance(file, unicode):
+ try:
+ file = file.decode('utf-8')
+ except:
+ log.warn(u"File %r in gallery %r is not unicode. Ommiting."\
+ % (file, dirpath) )
+ file = None
- current = lib.document(docid, request.user.username)
- orig = lib.document_for_rev(prev)
+ if file is not None:
+ name, ext = os.path.splitext(os.path.basename(file))
- if current != orig:
- return rc.DUPLICATE_ENTRY
+ if ext.lower() not in [u'.png', u'.jpeg', u'.jpg']:
+ log.warn(u"Ignoring: %s %s", name, ext)
+ url = None
+
+ url = settings.MEDIA_URL + assoc.subpath + u'/' + file
+
+ if url is None:
+ url = settings.MEDIA_URL + u'/missing.png'
+
+ gallery['pages'].append( quote(url.encode('utf-8')) )
+
+ gallery['pages'].sort()
+ galleries.append(gallery)
+
+ return galleries
- doc.quickwrite('xml', data, msg)
- return rc.ALL_OK
- except (RevisionNotFound, KeyError):
- return rc.NOT_HERE
#
# Dublin Core handlers
#
# @requires librarian
#
-class DocumentDublinCoreHandler(BaseHandler):
- allowed_methods = ('GET', 'PUT')
-
- def read(self, request, docid):
- """Read document as raw text"""
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
- try:
- doc = lib.document(docid, request.user.username).data('xml')
- bookinfo = dcparser.BookInfo.from_string(doc.read())
-
- return bookinfo.serialize()
- except RevisionNotFound:
- return rc.NOT_HERE
-
- def update(self, request, docid):
- lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
+#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_revision(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_revision(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"""
try:
- bi_json = request.PUT['contents']
- prev = request.PUT['revision']
- if request.PUT.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(prev)
-
- if current != orig:
- return rc.DUPLICATE_ENTRY
+ revision = form.cleaned_data['revision']
- xmldoc = parser.WLDocument.from_string(current.data('xml'))
- document.book_info = dcparser.BookInfo.from_json(bi_json)
-
- # zapisz
- current.quickwrite('xml', document.serialize().encode('utf-8'),\
- message=msg, user=request.user.username)
+ # fetch the main branch document
+ doc = lib.document(docid)
- return rc.ALL_OK
- except (RevisionNotFound, KeyError):
- return rc.NOT_HERE
+ # fetch the base document
+ user_doc = lib.document_for_revision(revision)
+ base_doc = user_doc.latest()
+
+ if base_doc != user_doc:
+ return response.EntityConflict().django_response({
+ "reason": "out-of-date",
+ "provided": str(user_doc.revision),
+ "latest": str(base_doc.revision)
+ })
+
+ if form.cleaned_data['type'] == 'update':
+ # update is always performed from the file branch
+ # to the user branch
+ user_doc_new = base_doc.update(request.user.username)
+
+ if user_doc_new == user_doc:
+ return response.SuccessAllOk().django_response({
+ "result": "no-op"
+ })
+
+ # shared document is the same
+ doc_new = doc
+
+ if form.cleaned_data['type'] == 'share':
+ if not base_doc.up_to_date():
+ return response.BadRequest().django_response({
+ "reason": "not-fast-forward",
+ "message": "You must first update your branch to the latest version."
+ })
+
+ anwser, info = base_doc.would_share()
+
+ if not anwser:
+ return response.SuccessAllOk().django_response({
+ "result": "no-op", "message": info
+ })
+
+ # check for unresolved conflicts
+ if base_doc.has_conflict_marks():
+ return response.BadRequest().django_response({
+ "reason": "unresolved-conflicts",
+ "message": "There are unresolved conflicts in your file. Fix them, and try again."
+ })
+
+ if not request.user.has_perm('api.share_document'):
+ # 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(
+ comitter = request.user,
+ document = docid,
+ status = "N",
+ defaults = {
+ 'source_revision': str(base_doc.revision),
+ 'comment': form.cleaned_data['message'] or '$AUTO$ Document shared.',
+ }
+ )
+
+ # there can't be 2 pending request from same user
+ # for the same document
+ if not created:
+ prq.source_revision = str(base_doc.revision)
+ prq.comment = prq.comment + 'u\n\n' + (form.cleaned_data['message'] or u'')
+ prq.save()
+
+ 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'
+ })
+
+ changed = base_doc.share(form.cleaned_data['message'])
+
+ # update shared version if needed
+ if changed:
+ doc_new = doc.latest()
+ else:
+ doc_new = doc
+
+ # the user wersion is the same
+ user_doc_new = base_doc
+
+ # The client can compare parent_revision to revision
+ # to see if he needs to update user's view
+ # Same goes for shared view
+
+ return response.SuccessAllOk().django_response({
+ "result": "success",
+ "name": user_doc_new.id,
+ "user": user_doc_new.owner,
+
+ "revision": user_doc_new.revision,
+ 'timestamp': user_doc_new.revision.timestamp,
+
+ "parent_revision": user_doc.revision,
+ "parent_timestamp": user_doc.revision.timestamp,
+
+ "shared_revision": doc_new.revision,
+ "shared_timestamp": doc_new.revision.timestamp,
+
+ "shared_parent_revision": doc.revision,
+ "shared_parent_timestamp": doc.revision.timestamp,
+ })
+ except wlrepo.OutdatedException, e:
+ return response.BadRequest().django_response({
+ "reason": "not-fast-forward",
+ "message": e.message
+ })
+ except wlrepo.LibraryException, e:
+ return response.InternalError().django_response({
+ "reason": "merge-error",
+ "message": e.message
+ })
fnp / redakcja.git / blobdiff