Merge branch 'master' of stigma.nowoczesnapolska.org.pl:platforma
[redakcja.git] / apps / api / handlers / library_handlers.py
old mode 100644 (file)
new mode 100755 (executable)
index 0635861..b635d4e
@@ -9,16 +9,16 @@ __date__ = "$2009-09-25 15:49:50$"
 __doc__ = "Module documentation."
 
 from piston.handler import BaseHandler, AnonymousBaseHandler
+from django.http import HttpResponse
 
-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
+import difflib
 from librarian import dcparser, parser
 
 from wlrepo import *
@@ -31,6 +31,10 @@ 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
 
@@ -200,6 +204,30 @@ class BasicDocumentHandler(AnonymousBaseHandler):
 
         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
 #
@@ -211,7 +239,7 @@ class DocumentHandler(BaseHandler):
     @hglibrary
     def read(self, request, form, docid, lib):
         """Read document's meta data"""       
-        log.info(u"User '%s' wants to %s(%s) as %s" % \
+        log.info(u"User '%s' wants to edit %s(%s) as %s" % \
             (request.user.username, docid, form.cleaned_data['revision'], form.cleaned_data['user']) )
 
         user = form.cleaned_data['user'] or request.user.username
@@ -241,7 +269,7 @@ class DocumentHandler(BaseHandler):
                 elif is_prq(user):
                     prq = prq_for_user(user)
                     # commiter's document
-                    prq_doc = lib.document_for_rev(prq.source_revision)
+                    prq_doc = lib.document_for_revision(prq.source_revision)
                     doc = prq_doc.take(user)
                 else:
                     return response.EntityNotFound().django_response({
@@ -290,7 +318,7 @@ class DocumentHTMLHandler(BaseHandler):
         try:
             revision = form.cleaned_data['revision']
             user = form.cleaned_data['user'] or request.user.username
-            document = lib.document_for_rev(revision)
+            document = lib.document_for_revision(revision)
 
             if document.id != docid:
                 return response.BadRequest().django_response({
@@ -308,7 +336,7 @@ class DocumentHTMLHandler(BaseHandler):
                 return error
 
             return librarian.html.transform(document.data('xml'), is_file=False, \
-                parse_dublincore=False, stylesheet=stylesheet,\
+                parse_dublincore=False, stylesheet='full',\
                 options={
                     "with-paths": 'boolean(1)',                    
                 })
@@ -316,9 +344,12 @@ class DocumentHTMLHandler(BaseHandler):
         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 })
+                'reason': 'xml-parse-error', 'message': e.message or u'' })
 
 #
 # Image Gallery
@@ -365,167 +396,11 @@ class DocumentGalleryHandler(BaseHandler):
                     
                 gallery['pages'].append( quote(url.encode('utf-8')) )
 
-#            gallery['pages'].sort()
+            gallery['pages'].sort()
             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')
-
-    @validate_form(forms.TextRetrieveForm, 'GET')
-    @hglibrary
-    def read(self, request, form, docid, lib):
-        """Read document as raw text"""        
-        try:
-            revision = form.cleaned_data['revision']
-            part = form.cleaned_data['part']
-            user = form.cleaned_data['user'] or request.user.username            
-            
-            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'
-                })
-
-            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
-            
-            if not part:                
-                return document.data('xml')
-            
-            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, e:
-            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
-            })   
-
-    @validate_form(forms.TextUpdateForm, 'POST')
-    @hglibrary
-    def create(self, request, form, docid, lib):
-        try:
-            revision = form.cleaned_data['revision']
-            msg = form.cleaned_data['message']
-            user = form.cleaned_data['user'] or request.user.username
-
-            # do not allow changing not owned documents
-            # (for now... )
-            
-            
-            if user != request.user.username:
-                return response.AccessDenied().django_response({
-                    'reason': 'insufficient-priviliges',
-                })
-            
-            current = lib.document(docid, user)
-            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 })
-            
-            if form.cleaned_data.has_key('contents'):
-                data = form.cleaned_data['contents']
-            else:                               
-                chunks = form.cleaned_data['chunks']
-                xdoc = parser.WLDocument.from_string(current.data('xml'))
-                errors = xdoc.merge_chunks(chunks)
-
-                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, user) )
-
-            try:
-                # return the new revision number
-                return response.SuccessAllOk().django_response({
-                    "document": ndoc.id,
-                    "user": user,
-                    "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)
 
 
 #
@@ -545,7 +420,7 @@ class DocumentTextHandler(BaseHandler):
 #            if revision == 'latest':
 #                doc = lib.document(docid)
 #            else:
-#                doc = lib.document_for_rev(revision)
+#                doc = lib.document_for_revision(revision)
 #
 #
 #            if document.id != docid:
@@ -570,7 +445,7 @@ class DocumentTextHandler(BaseHandler):
 #                msg = u"$AUTO$ Dublin core update."
 #
 #            current = lib.document(docid, request.user.username)
-#            orig = lib.document_for_rev(revision)
+#            orig = lib.document_for_revision(revision)
 #
 #            if current != orig:
 #                return response.EntityConflict().django_response({
@@ -615,7 +490,7 @@ class MergeHandler(BaseHandler):
         doc = lib.document(docid)
 
         # fetch the base document
-        user_doc = lib.document_for_rev(revision)
+        user_doc = lib.document_for_revision(revision)
         base_doc = user_doc.latest()
 
         if base_doc != user_doc:
@@ -629,6 +504,11 @@ class MergeHandler(BaseHandler):
             # 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
@@ -637,12 +517,19 @@ class MergeHandler(BaseHandler):
             if not base_doc.up_to_date():
                 return response.BadRequest().django_response({
                     "reason": "not-fast-forward",
-                    "message": "You must first update yout branch to the latest version."
+                    "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({
+                return response.BadRequest().django_response({                    
                     "reason": "unresolved-conflicts",
                     "message": "There are unresolved conflicts in your file. Fix them, and try again."
                 })
@@ -692,6 +579,7 @@ class MergeHandler(BaseHandler):
         # Same goes for shared view
         
         return response.SuccessAllOk().django_response({
+            "result": "success",
             "name": user_doc_new.id,
             "user": user_doc_new.owner,