HTML dodany do API.
[redakcja.git] / apps / api / handlers / library_handlers.py
index b47d41c..8862de0 100644 (file)
@@ -5,71 +5,83 @@ __date__ = "$2009-09-25 15:49:50$"
 __doc__ = "Module documentation."
 
 from piston.handler import BaseHandler, AnonymousBaseHandler
-from piston.utils import rc
 
-import settings
+
 import librarian
+import librarian.html
 import api.forms as forms
 from datetime import date
 
 from django.core.urlresolvers import reverse
-from wlrepo import MercurialLibrary, RevisionNotFound
 
+from wlrepo import RevisionNotFound, DocumentAlreadyExists
 from librarian import dcparser
 
+import api.response as response
+from api.utils import validate_form, hglibrary
+
 #
 # Document List Handlers
 #
 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}
+        
 
 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)
+        return {'documents' : document_list }        
 
-        form = forms.DocumentUploadForm(request.POST, request.FILES)
-        if not form.is_valid():
-            return rc.BAD_REQUEST
+    @validate_form(forms.DocumentUploadForm, 'POST')
+    @hglibrary
+    def create(self, request, form, lib):
+        """Create a new document."""       
 
-        f = request.FILES['ocr']
-        data = f.read().decode('utf-8')
+        if form.cleaned_data['ocr_data']:
+            data = form.cleaned_data['ocr_data'].encode('utf-8')
+        else:            
+            data = request.FILES['ocr_file'].read().decode('utf-8')
 
         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)
-
-        return {
-            'url': reverse('document_view', args=[doc.id]),
-            'name': doc.id,
-            'revision': doc.revision }
+        docid = form.cleaned_data['bookname']
+        try:
+            doc = lib.document_create(docid)
+            doc = doc.quickwrite('xml', data, '$AUTO$ XML data uploaded.',
+                user=request.user.username)
+
+            url = reverse('document_view', args=[doc.id])
+
+            return response.EntityCreated().django_response(\
+                body = {
+                    'url': url,
+                    'name': doc.id,
+                    'revision': doc.revision },
+                url = url )
+                
+        except DocumentAlreadyExists:
+            # Document is already there
+            return response.EntityConflict().django_response(\
+                {"reason": "Document %s already exists." % docid})
 
 #
 # Document Handlers
@@ -77,20 +89,19 @@ class LibraryHandler(BaseHandler):
 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,
-            'text_url': reverse('doctext_view', args=[doc.id]),
-            'dc_url': reverse('docdc_view', docid=doc.id),
-            'latest_rev': doc.revision,
+            '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]),
+            'public_revision': doc.revision,
         }
 
         return result
@@ -102,58 +113,77 @@ class DocumentHandler(BaseHandler):
     allowed_methods = ('GET', 'PUT')
     anonymous = BasicDocumentHandler
 
-    def read(self, request, docid):
-        """Read document's meta data"""
-        lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
-
-        opts = forms.DocumentGetForm(request.GET)
-        if not opts.is_valid():
-            return rc.BAD_REQUEST
-
+    @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:
-            return rc.NOT_HERE
+            return request.EnityNotFound().django_response()
 
         # is_shared = udoc.ancestorof(doc)
         # is_uptodate = is_shared or shared.ancestorof(document)
 
         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()
+            '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]),
+            'user_revision': udoc.revision,
+            'public_revision': doc.revision,            
+        }       
 
         return result
 
+    @hglibrary
+    def update(self, request, docid, lib):
+        """Update information about the document, like display not"""
+        return
+#
+#
+#
+
+class DocumentHTMLHandler(BaseHandler):
+    allowed_methods = ('GET', 'PUT')
+
+    @hglibrary
+    def read(self, request, docid, revision, lib):
+        """Read document as html text"""
+        try:
+            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()
+
 #
 # Document Text View
 #
 class DocumentTextHandler(BaseHandler):
     allowed_methods = ('GET', 'PUT')
 
-    def read(self, request, docid):
-        """Read document as raw text"""
-        lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
+    @hglibrary
+    def read(self, request, docid, revision, lib):
+        """Read document as raw text"""               
         try:
-            return lib.document(docid, request.user.username).data('xml')
+            if revision == 'latest':
+                document = lib.document(docid)
+            else:
+                document = lib.document_for_rev(revision)
+            
+            # TODO: some finer-grained access control
+            return document.data('xml')
         except RevisionNotFound:
-            return rc.NOT_HERE
+            return response.EntityNotFound().django_response()
 
-    def update(self, request, docid):
-        lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
+    @hglibrary
+    def update(self, request, docid, revision, lib):
         try:
-            data = request.PUT['contents']
-            prev = request.PUT['revision']
+            data = request.PUT['contents']            
 
             if request.PUT.has_key('message'):
                 msg = u"$USER$ " + request.PUT['message']
@@ -161,16 +191,26 @@ class DocumentTextHandler(BaseHandler):
                 msg = u"$AUTO$ XML content update."
 
             current = lib.document(docid, request.user.username)
-            orig = lib.document_for_rev(prev)
+            orig = lib.document_for_rev(revision)
 
             if current != orig:
-                return rc.DUPLICATE_ENTRY
-
-            doc.quickwrite('xml', data, msg)
-
-            return rc.ALL_OK
+                return response.EntityConflict().django_response({
+                        "reason": "out-of-date",
+                        "provided_revision": orig.revision,
+                        "latest_revision": current.revision })
+
+            ndoc = doc.quickwrite('xml', data, msg)
+
+            # return the new revision number
+            return {
+                "document": ndoc.id,
+                "subview": "xml",
+                "previous_revision": prev,
+                "updated_revision": ndoc.revision
+            }
+        
         except (RevisionNotFound, KeyError):
-            return rc.NOT_HERE
+            return response.EntityNotFound().django_response()
 
 #
 # Dublin Core handlers
@@ -180,40 +220,66 @@ class DocumentTextHandler(BaseHandler):
 class DocumentDublinCoreHandler(BaseHandler):
     allowed_methods = ('GET', 'PUT')
 
-    def read(self, request, docid):
-        """Read document as raw text"""
-        lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
+    @hglibrary
+    def read(self, request, docid, revision, lib):
+        """Read document as raw text"""        
         try:
-            doc = lib.document(docid, request.user.username).data('xml')
-            bookinfo = dcparser.BookInfo.from_string(doc.read())
-
+            if revision == 'latest':
+                document = lib.document(docid)
+            else:
+                document = lib.document_for_rev(revision)
+            
+            bookinfo = dcparser.BookInfo.from_string(doc.data('xml'))
             return bookinfo.serialize()
         except RevisionNotFound:
-            return rc.NOT_HERE
+            return response.EntityNotFound().django_response()
 
-    def update(self, request, docid):
-        lib = MercurialLibrary(path=settings.REPOSITORY_PATH)
+    @hglibrary
+    def update(self, request, docid, revision, lib):
         try:
-            bi_json = request.PUT['contents']
-            prev = request.PUT['revision']
+            bi_json = request.PUT['contents']            
             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)
+            orig = lib.document_for_rev(revision)
 
             if current != orig:
-                return rc.DUPLICATE_ENTRY
+                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
-            current.quickwrite('xml', document.serialize().encode('utf-8'),\
+            ndoc = current.quickwrite('xml', \
+                document.serialize().encode('utf-8'),\
                 message=msg, user=request.user.username)
 
-            return rc.ALL_OK
+            return {
+                "document": ndoc.id,
+                "subview": "xml",
+                "previous_revision": prev,
+                "updated_revision": ndoc.revision
+            }
         except (RevisionNotFound, KeyError):
-            return rc.NOT_HERE
+            return response.EntityNotFound().django_response()
+
+
+class MergeHandler(BaseHandler):
+    allowed_methods = ('POST',)
+
+    @validate_form(forms.MergeRequestForm)
+    @hglibrary
+    def create(self, request, form, docid, lib):
+        """Create a new document revision from the information provided by user"""
+
+        pass
+
+        
+        
+