* updated ALLOWED_CONTENT_TYPES

* implemented ContentTypeRestrictedFileField based on FileField

1 files changed, 50 insertions, 0 deletions

diff --git a/account/extra.py b/account/extra.py
new file mode 100644
index 0000000..c247b8f
--- /dev/null
+++ b/account/extra.py
@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+
+"""
+Extra models for app account
+"""
+
+from django.db import models
+from django import forms
+from django.template.defaultfilters import filesizeformat
+from django.utils.translation import ugettext_lazy as _
+
+class ContentTypeRestrictedFileField(models.FileField):
+    """
+    Same as FileField, but you can specify:
+        * content_types - list containing allowed content_types.
+            Example: ['application/pdf', 'image/jpeg']
+        * max_upload_size - a number indicating the maximum file
+            size allowed for upload.
+            2.5MB - 2621440
+            5MB   - 5242880
+            10MB  - 10485760
+            20MB  - 20971520
+            50MB  - 52428800
+            100MB - 104857600
+            250MB - 214958080
+            500MB - 429916160
+    """
+    def __init__(self, *args, **kwargs):
+        self.content_types = kwargs.pop("content_types")
+        self.max_upload_size = kwargs.pop("max_upload_size")
+        super(ContentTypeRestrictedFileField, self).__init__(*args, **kwargs)
+
+    def clean(self, *args, **kwargs):
+        data = super(ContentTypeRestrictedFileField, self).clean(*args, **kwargs)
+        file = data.file
+        # check content type and file size
+        try:
+            content_type = file.content_type
+            #print content_type
+            #raise forms.ValidationError(_("Invalid filetype."), code='invalid')
+            if content_type in self.content_types:
+                if file._size > self.max_upload_size:
+                    raise forms.ValidationError(_('Please keep filesize under %s. Current filesize %s') % (filesizeformat(self.max_upload_size), filesizeformat(file._size)), code='invalid')
+            else:
+                raise forms.ValidationError(_("Invalid filetype."), code='invalid')
+        except AttributeError:
+            pass
+        #
+        return data
+