Accept 40 hex char PGP key signatures only

Signed-off-by: Dan McGee <dan@archlinux.org>

2 files changed, 8 insertions, 14 deletions

diff --git a/main/models.py b/main/models.py
index ec1f0d2..bdb8462 100644
--- a/main/models.py
+++ b/main/models.py
@@ -36,18 +36,13 @@ class PGPKeyField(models.CharField):
         if value.startswith('0x'):
             value = value[2:]
         value = value.split('/')[-1]
-        return value
+        # make all (hex letters) uppercase
+        return value.upper()
 
     def formfield(self, **kwargs):
         # override so we don't set max_length form field attribute
         return models.Field.formfield(self, **kwargs)
 
-def validate_pgp_key_length(value):
-    if len(value) not in (8, 16, 40):
-        raise ValidationError(
-                u'Ensure this value has 8, 16, or 40 characters (it has %d).' % len(value),
-                'pgp_key_value')
-
 class UserProfile(models.Model):
     notify = models.BooleanField(
         "Send notifications",
@@ -66,10 +61,10 @@ class UserProfile(models.Model):
         help_text="Required field")
     other_contact = models.CharField(max_length=100, null=True, blank=True)
     pgp_key = PGPKeyField(max_length=40, null=True, blank=True,
-        verbose_name="PGP key", validators=[RegexValidator(r'^[0-9A-F]+$',
-            "Ensure this value consists of only hex characters.", 'hex_char'),
-            validate_pgp_key_length],
-        help_text="PGP Key ID or fingerprint (8, 16, or 40 hex digits)")
+        verbose_name="PGP key fingerprint",
+        validators=[RegexValidator(r'^[0-9A-F]{40}$',
+            "Ensure this value consists of 40 hex characters.", 'hex_char')],
+        help_text="consists of 40 hex digits; use `gpg --fingerprint`")
     website = models.CharField(max_length=200, null=True, blank=True)
     yob = models.IntegerField("Year of birth", null=True, blank=True)
     location = models.CharField(max_length=50, null=True, blank=True)
diff --git a/main/templatetags/pgp.py b/main/templatetags/pgp.py
index 956de89..f875c11 100644
--- a/main/templatetags/pgp.py
+++ b/main/templatetags/pgp.py
@@ -4,7 +4,6 @@ from django.conf import settings
 register = template.Library()
 
 def format_key(key_id):
-    print len(key_id)
     if len(key_id) in (8, 20):
         return u'0x%s' % key_id
     elif len(key_id) == 40:
@@ -24,7 +23,7 @@ def pgp_key_link(key_id):
         return format_key(key_id)
     url = 'http://%s/pks/lookup?op=vindex&fingerprint=on&exact=on&search=0x%s' % \
             (pgp_server, key_id)
-    values = (url, key_id, format_key(key_id))
-    return '<a href="%s" title="PGP key search for 0x%s">%s</a>' % values
+    values = (url, format_key(key_id), key_id[-8:])
+    return '<a href="%s" title="PGP key search for %s">0x%s</a>' % values
 
 # vim: set ts=4 sw=4 et: