X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/5dba732eeee324e084e0b6c03fbb64c487fb5bd1..4f7ac989eb7d803f72eebb5e2eaed4d54322f19a:/contact/models.py

diff --git a/contact/models.py b/contact/models.py
index f23fddf..fb8c8ac 100644
--- a/contact/models.py
+++ b/contact/models.py
@@ -1,26 +1,44 @@
 # -*- coding: utf-8 -*-
 import yaml
-from django.core.files.storage import FileSystemStorage
+from hashlib import sha1
+import random
+import string
 from django.db import models
-from django.utils.encoding import smart_unicode
+from django.utils.encoding import smart_unicode, force_str
+from django.db.models import permalink
 from django.utils.translation import ugettext_lazy as _
 from jsonfield import JSONField
 from . import app_settings
 
 
+KEY_SIZE = 30
+
+
+def make_key(length):
+    return ''.join(
+        random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits)
+        for i in range(length))
+
+
 class Contact(models.Model):
     created_at = models.DateTimeField(_('submission date'), auto_now_add=True)
     ip = models.IPAddressField(_('IP address'))
     contact = models.CharField(_('contact'), max_length=128)
     form_tag = models.CharField(_('form'), max_length=32, db_index=True)
     body = JSONField(_('body'))
+    key = models.CharField(max_length=KEY_SIZE)
+
+    @classmethod
+    def generate_key(cls):
+        key = ''
+        while not key or cls.objects.filter(key=key).exists():
+            key = make_key(KEY_SIZE)
+        return key
 
     @staticmethod
     def pretty_print(value, for_html=False):
         if type(value) in (tuple, list, dict):
-            value = yaml.safe_dump(value, 
-                allow_unicode=True,
-                default_flow_style=False)
+            value = yaml.safe_dump(value, allow_unicode=True, default_flow_style=False)
             if for_html:
                 value = smart_unicode(value).replace(u" ", unichr(160))
         return value
@@ -33,6 +51,16 @@ class Contact(models.Model):
     def __unicode__(self):
         return unicode(self.created_at)
 
+    def digest(self):
+        serialized_body = ';'.join(sorted('%s:%s' % item for item in self.body.iteritems()))
+        data = '%s%s%s%s%s' % (self.id, self.contact, serialized_body, self.ip, self.form_tag)
+        data = force_str(data)
+        return sha1(data).hexdigest()
+
+    @permalink
+    def update_url(self):
+        return 'edit_form', [], {'form_tag': self.form_tag, 'contact_id': self.id, 'key': self.key}
+
 
 class Attachment(models.Model):
     contact = models.ForeignKey(Contact)
@@ -41,7 +69,15 @@ class Attachment(models.Model):
 
     @models.permalink
     def get_absolute_url(self):
-        return ('contact_attachment', [self.contact_id, self.tag])
+        return 'contact_attachment', [self.contact_id, self.tag]
+
+    @property
+    @models.permalink
+    def url(self):
+        return 'contact_attachment_key', [self.contact_id, self.tag, self.contact.key]
+
+    def __unicode__(self):
+        return self.file.name.rsplit('/', 1)[-1]
 
 
 __import__(app_settings.FORMS_MODULE)