add pdf upload support

pandora/text/migrations/0004_auto__add_field_text_uploading__add_field_text_file.py

@@ -0,0 +1,95 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding field 'Text.uploading'
+        db.add_column('text_text', 'uploading',
+                      self.gf('django.db.models.fields.BooleanField')(default=False),
+                      keep_default=False)
+
+        # Adding field 'Text.file'
+        db.add_column('text_text', 'file',
+                      self.gf('django.db.models.fields.files.FileField')(default=None, max_length=100, null=True, blank=True),
+                      keep_default=False)
+
+
+    def backwards(self, orm):
+        # Deleting field 'Text.uploading'
+        db.delete_column('text_text', 'uploading')
+
+        # Deleting field 'Text.file'
+        db.delete_column('text_text', 'file')
+
+
+    models = {
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '255'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '255', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '255'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '255'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'text.position': {
+            'Meta': {'unique_together': "(('user', 'text', 'section'),)", 'object_name': 'Position'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'position': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'section': ('django.db.models.fields.CharField', [], {'max_length': "'255'"}),
+            'text': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'position'", 'to': "orm['text.Text']"}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'text_position'", 'to': "orm['auth.User']"})
+        },
+        'text.text': {
+            'Meta': {'unique_together': "(('user', 'name'),)", 'object_name': 'Text'},
+            'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {'default': "''"}),
+            'file': ('django.db.models.fields.files.FileField', [], {'default': 'None', 'max_length': '100', 'null': 'True', 'blank': 'True'}),
+            'icon': ('django.db.models.fields.files.ImageField', [], {'default': 'None', 'max_length': '100', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'links': ('ox.django.fields.DictField', [], {'default': '{}'}),
+            'modified': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '255'}),
+            'poster_frames': ('ox.django.fields.TupleField', [], {'default': '[]'}),
+            'status': ('django.db.models.fields.CharField', [], {'default': "'private'", 'max_length': '20'}),
+            'subscribed_users': ('django.db.models.fields.related.ManyToManyField', [], {'related_name': "'subscribed_texts'", 'symmetrical': 'False', 'to': "orm['auth.User']"}),
+            'text': ('django.db.models.fields.TextField', [], {'default': "''"}),
+            'type': ('django.db.models.fields.CharField', [], {'default': "'html'", 'max_length': '255'}),
+            'uploading': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'texts'", 'to': "orm['auth.User']"})
+        }
+    }
+
+    complete_apps = ['text']

pandora/text/models.py

@@ -41,6 +41,8 @@ class Text(models.Model):
     subscribed_users = models.ManyToManyField(User, related_name='subscribed_texts')
 
     objects = managers.TextManager()
+    uploading = models.BooleanField(default = False)
+    file = models.FileField(default=None, blank=True,null=True, upload_to=lambda f, x: f.path(x))
 
     def save(self, *args, **kwargs):
         super(Text, self).save(*args, **kwargs)
@@ -48,6 +50,9 @@ class Text(models.Model):
     def __unicode__(self):
         return self.get_id()
     
+    def get_absolute_url(self):
+        return '/texts/%s' % self.get_id()
+
     def get_id(self):
         return u'%s:%s' % (self.user.username, self.name)
 
@@ -82,6 +87,8 @@ class Text(models.Model):
                     response[key] = self.subscribed_users.filter(id=user.id).exists()
             elif hasattr(self, _map.get(key, key)):
                 response[key] = getattr(self, _map.get(key,key))
+        if self.type == 'pdf':
+            response['available'] = True if self.file and not self.uploading else False
         return response
 
     def path(self, name=''):
@@ -144,6 +151,23 @@ class Text(models.Model):
                 path = source
         return path
 
+    def save_chunk(self, chunk, chunk_id=-1, done=False):
+        if self.uploading:
+            if not self.file:
+                self.file.name = self.path('data.pdf')
+                ox.makedirs(os.path.dirname(self.file.path))
+                with open(self.file.path, 'w') as f:
+                    f.write(chunk.read())
+                self.save()
+            else:
+                with open(self.file.path, 'a') as f:
+                    f.write(chunk.read())
+            if done:
+                self.uploading = False
+                self.save()
+            return True
+        return False
+
 class Position(models.Model):
 
     class Meta:

pandora/text/views.py

@@ -10,6 +10,7 @@ from ox.django.api import actions
 from ox.django.decorators import login_required_json
 from ox.django.http import HttpFileResponse
 from ox.django.shortcuts import render_to_json_response, get_object_or_404_json, json_response
+from django import forms
 from django.db.models import Count, Q, Sum, Max
 from django.conf import settings
 
@@ -451,3 +452,49 @@ def icon(request, id, size=16):
     else:
         icon = os.path.join(settings.STATIC_ROOT, 'jpg/list256.jpg')
     return HttpFileResponse(icon, content_type='image/jpeg')
+
+class ChunkForm(forms.Form):
+    chunk = forms.FileField()
+    chunkId = forms.IntegerField(required=False)
+    done = forms.IntegerField(required=False)
+
+def pdf(request, id):
+    text = get_text_or_404_json(id)
+    if text.type == 'pdf' and text.file and not text.uploading:
+        return HttpFileResponse(text.file.path, content_type='application/pdf')
+    response = json_response(status=404, text='file not found')
+
+@login_required_json
+def upload(request):
+    text = get_text_or_404_json(request.POST['id'])
+    if text.editable(request.user):
+        #post next chunk
+        if 'chunk' in request.FILES:
+            form = ChunkForm(request.POST, request.FILES)
+            if form.is_valid() and text.editable(request.user):
+                c = form.cleaned_data['chunk']
+                chunk_id = form.cleaned_data['chunkId']
+                response = {
+                    'result': 1,
+                    'resultUrl': request.build_absolute_uri(text.get_absolute_url())
+                }
+                if not text.save_chunk(c, chunk_id, form.cleaned_data['done']):
+                    response['result'] = -1
+                if form.cleaned_data['done']:
+                    response['done'] = 1
+                return render_to_json_response(response)
+        #init upload
+        else:
+            text.uploading = True
+            if text.file:
+                text.file.delete()
+            text.save()
+            return render_to_json_response({
+                'uploadUrl': request.build_absolute_uri('/api/upload/text'),
+                'url': request.build_absolute_uri(text.get_absolute_url()),
+                'result': 1
+            })
+    else:
+        response = json_response(status=404, text='permission denied')
+    response = json_response(status=400, text='this request requires POST')
+    return render_to_json_response(response)

pandora/urls.py

@@ -22,6 +22,7 @@ urlpatterns = patterns('',
     # Uncomment the admin/doc line below to enable admin documentation:
     # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
     (r'^admin/', include(admin.site.urls)),
+    (r'^api/upload/text/?$', 'text.views.upload'),
     (r'^api/upload/?$', 'archive.views.firefogg_upload'),
     (r'^url=(?P<url>.*)$', 'app.views.redirect_url'),
     (r'^file/(?P<oshash>.*)$', 'archive.views.lookup_file'),
@@ -29,6 +30,7 @@ urlpatterns = patterns('',
     (r'^resetUI$', 'user.views.reset_ui'),
     (r'^list/(?P<id>.*?)/icon(?P<size>\d*).jpg$', 'itemlist.views.icon'),
     (r'^text/(?P<id>.*?)/icon(?P<size>\d*).jpg$', 'text.views.icon'),
+    (r'^text/(?P<id>.*?)/text.pdf$', 'text.views.pdf'),
     (r'^robots.txt$', serve_static_file, {'location': os.path.join(settings.STATIC_ROOT, 'robots.txt'), 'content_type': 'text/plain'}),
     (r'^favicon.ico$', serve_static_file, {'location': os.path.join(settings.STATIC_ROOT, 'png/icon.16.png'), 'content_type': 'image/x-icon'}),
     (r'^opensearch.xml$', 'app.views.opensearch_xml'),

static/js/pandora/chunkupload.js

@@ -0,0 +1,205 @@
+// vi:si:et:sw=4:sts=4:ts=4
+// GPL2+/MIT 2012
+'use strict';
+/*
+ Usage:
+  pandora.chunkupload({
+      file: file,
+      url: '/add',
+      data: {'name': file.name}
+ }).bindEvent({
+      progress: function(data) {
+        console.log(data.progress);
+      },
+      done: function(result) {
+          if(result.progress == 1) {
+              var response = JSON.parse(result.responseText);
+              if(response.resultUrl) {
+                document.location.href = response.resultUrl;
+              } else {
+                alert(response.status;
+              }
+          } else {
+              alert('!!!');
+          }
+      }
+  });
+*/
+pandora.chunkupload = function(options) {
+    var chunkSize = options.size || 1024*1024,
+        chunkUrl,
+        file = options.file,
+        maxRetry = -1,
+        retries = 0,
+        request,
+        that = Ox.Element();
+
+    initUpload();
+
+    function done() {
+        that.triggerEvent('done', {
+          status: that.status,
+          progress: that.progress,
+          responseText: that.responseText
+        });
+    }
+
+    function initUpload() {
+        //request upload slot from server
+        that.status = 'requesting chunk upload';
+        that.progress = 0;
+        request = new XMLHttpRequest();
+        request.addEventListener('load', function (evt) {
+            var response = {};
+            that.responseText = evt.target.responseText;
+            try {
+                response = JSON.parse(evt.target.responseText);
+            } catch(e) {
+                response = {};
+                that.status = 'failed to parse response';
+                that.progress = -1;
+                done();
+            }
+            if (response.maxRetry) {
+                maxRetry = response.maxRetry;
+            }
+            chunkUrl = response.uploadUrl;
+            if (document.location.protocol == 'https:') {
+                chunkUrl = chunkUrl.replace(/http:\/\//, 'https://');
+            }
+            if (chunkUrl) {
+                that.status = 'uploading';
+                that.progress = 0.0;
+                //start upload
+                uploadChunk(0);
+            } else {
+                that.status = 'upload failed, no upload url provided';
+                that.progress = -1;
+                done();
+            }
+        }, false);
+        request.addEventListener('error', function (evt) {
+            that.status = 'uplaod failed';
+            that.progress = -1;
+            that.responseText = evt.target.responseText;
+            done();
+        }, false);
+        request.addEventListener('abort', function (evt) {
+            that.status = 'aborted';
+            that.progress = -1;
+            done();
+        }, false);
+        var formData = new FormData();
+        
+        Object.keys(options.data).forEach(function(key) {
+            formData.append(key, options.data[key]);
+        });
+        request.open('POST', options.url);
+        request.send(formData);
+    }
+
+    function progress(p) {
+        that.progress = p;
+        that.triggerEvent('progress', {
+            progress: that.progress,
+            status: that.status
+        });
+    }
+
+    function uploadChunk(chunkId) {
+        var bytesAvailable = file.size,
+            chunk,
+            chunkOffset = chunkId * chunkSize;
+
+        if(file.mozSlice) {
+            chunk = file.mozSlice(chunkOffset, chunkOffset+chunkSize, file.type);
+        } else if(file.webkitSlice) {
+            chunk = file.webkitSlice(chunkOffset, chunkOffset+chunkSize, file.type);
+        } else if(file.slice) {
+            chunk = file.slice(chunkOffset, chunkOffset+chunkSize, file.type);
+        } else {
+            that.status = 'Sorry, your browser is currently not supported.';
+            done()
+        }
+
+        progress(parseFloat(chunkOffset)/bytesAvailable);
+
+        request = new XMLHttpRequest();
+        request.addEventListener('load', function (evt) {
+            var response;
+            that.responseText = evt.target.responseText;
+            try {
+                response = JSON.parse(evt.target.responseText);
+            } catch(e) {
+                response = {};
+            }
+            if (response.done == 1) {
+                //upload finished
+                that.resultUrl = response.resultUrl;
+                that.progress = 1;
+                that.status = 'done';
+                done();
+            } else if (response.result == 1) {
+                //reset retry counter
+                retries = 0;
+                //start uploading next chunk
+                uploadChunk(chunkId + 1);
+            } else {
+                //failed to upload, try again in 5 second
+                retries++;
+                if (maxRetry > 0 && retries > maxRetry) {
+                    that.status = 'uplaod failed';
+                    that.progress = -1;
+                    done();
+                } else {
+                    setTimeout(function() {
+                        uploadChunk(chunkId);
+                    }, 5000);
+                }
+            }
+        }, false);
+        request.addEventListener('error', function (evt) {
+            //failed to upload, try again in 3 second
+            retries++;
+            if (maxRetry > 0 && retries > maxRetry) {
+                that.status = 'uplaod failed';
+                that.progress = -1;
+                done();
+            } else {
+                setTimeout(function() {
+                    uploadChunk(chunkId);
+                }, 3000);
+            }
+        }, false);
+        request.upload.addEventListener('progress', function (evt) {
+            if (evt.lengthComputable) {
+                progress(parseFloat(chunkOffset + evt.loaded) / bytesAvailable);
+            }
+        }, false);
+        request.addEventListener('abort', function (evt) {
+            that.status = 'aborted';
+            that.progress = -1;
+            done();
+        }, false);
+
+        var formData = new FormData();
+        Object.keys(options.data).forEach(function(key) {
+            formData.append(key, options.data[key]);
+        });
+        formData.append('chunkId', chunkId);
+        if (bytesAvailable <= chunkOffset + chunkSize) {
+            formData.append('done', 1);
+        }
+        formData.append('chunk', chunk);
+        request.open('POST', chunkUrl, true);
+        request.send(formData);
+    }
+
+    that.abort = function() {
+        if (request) {
+            request.abort();
+            request = null;
+        }
+    };
+    return that;
+};

static/js/pandora/text.js

@@ -25,13 +25,32 @@ pandora.ui.text = function() {
                 pandora.UI.set({text: ''});
             } else if (result.data.type == 'pdf') {
                 $text && $text.remove();
-                $text = Ox.Editable({
-                    clickLink: pandora.clickLink,
-                    editable: false,
-                    type: 'textarea',
-                    value: 'REPLACE ME WITH PDF VIEWER'
+                $text = Ox.Element().appendTo(that);
+                if(result.data.available) {
+                    $text.append(
+                        $('<iframe>').attr({
+                            src: '/text/' + ui.text + '/text.pdf',
+                            frameBorder: 0
+                        }).css({
+                            width: '100%',
+                            height: '100%'
                         })
-                .appendTo(that);
+                    );
+                } else {
+                    Ox.FileButton({
+                        maxFiles: 1,
+                        title: 'Select PDF'
+                    }).bindEvent({
+                        click: function(data) {
+                            if(data.files.length) {
+                                pandora.$ui.uploadPDFDialog = pandora.ui.uploadPDFDialog({
+                                    file: data.files[0],
+                                    id: ui.text
+                                }).open();
+                            }
+                        }
+                    }).appendTo($text);
+                }
             } else {
                 var text = result.data ? result.data.text : '';
                 $text && $text.remove();