From 6817cc832940c804d7502d0162ea551f30a546b0 Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@freedombone.net>
Date: Mon, 6 Jul 2020 10:52:06 +0100
Subject: [PATCH] Functions for pgp fingerprints

---
 pgp.py | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 79 insertions(+), 2 deletions(-)

diff --git a/pgp.py b/pgp.py
index 7f24cc54..a9205606 100644
--- a/pgp.py
+++ b/pgp.py
@@ -53,6 +53,28 @@ def getPGPpubKey(actorJson: {}) -> str:
     return ''
 
 
+def getPGPfingerprint(actorJson: {}) -> str:
+    """Returns PGP fingerprint for the given actor
+    """
+    if not actorJson.get('attachment'):
+        return ''
+    for propertyValue in actorJson['attachment']:
+        if not propertyValue.get('name'):
+            continue
+        if not propertyValue['name'].lower().startswith('openpgp'):
+            continue
+        if not propertyValue.get('type'):
+            continue
+        if not propertyValue.get('value'):
+            continue
+        if propertyValue['type'] != 'PropertyValue':
+            continue
+        if len(propertyValue['value']) < 10:
+            continue
+        return propertyValue['value']
+    return ''
+
+
 def setEmailAddress(actorJson: {}, emailAddress: str) -> None:
     """Sets the email address for the given actor
     """
@@ -103,6 +125,13 @@ def setEmailAddress(actorJson: {}, emailAddress: str) -> None:
 def setPGPpubKey(actorJson: {}, PGPpubKey: str) -> None:
     """Sets a PGP public key for the given actor
     """
+    removeKey = False
+    if not PGPpubKey:
+        removeKey = True
+    else:
+        if '--BEGIN PGP PUBLIC KEY' not in PGPpubKey:
+            removeKey = True
+
     if not actorJson.get('attachment'):
         actorJson['attachment'] = []
 
@@ -119,8 +148,7 @@ def setPGPpubKey(actorJson: {}, PGPpubKey: str) -> None:
         break
     if propertyFound:
         actorJson['attachment'].remove(propertyValue)
-
-    if '--BEGIN PGP PUBLIC KEY' not in PGPpubKey:
+    if removeKey:
         return
 
     for propertyValue in actorJson['attachment']:
@@ -141,3 +169,52 @@ def setPGPpubKey(actorJson: {}, PGPpubKey: str) -> None:
         "value": PGPpubKey
     }
     actorJson['attachment'].append(newPGPpubKey)
+
+
+def setPGPfingerprint(actorJson: {}, fingerprint: str) -> None:
+    """Sets a PGP fingerprint for the given actor
+    """
+    removeFingerprint = False
+    if not fingerprint:
+        removeFingerprint = True
+    else:
+        if len(fingerprint) < 10:
+            removeFingerprint = True
+
+    if not actorJson.get('attachment'):
+        actorJson['attachment'] = []
+
+    # remove any existing value
+    propertyFound = None
+    for propertyValue in actorJson['attachment']:
+        if not propertyValue.get('name'):
+            continue
+        if not propertyValue.get('type'):
+            continue
+        if not propertyValue['name'].lower().startswith('openpgp'):
+            continue
+        propertyFound = propertyValue
+        break
+    if propertyFound:
+        actorJson['attachment'].remove(propertyValue)
+    if removeFingerprint:
+        return
+
+    for propertyValue in actorJson['attachment']:
+        if not propertyValue.get('name'):
+            continue
+        if not propertyValue.get('type'):
+            continue
+        if not propertyValue['name'].lower().startswith('openpgp'):
+            continue
+        if propertyValue['type'] != 'PropertyValue':
+            continue
+        propertyValue['value'] = fingerprint.strip()
+        return
+
+    newPGPfingerprint = {
+        "name": "OpenPGP",
+        "type": "PropertyValue",
+        "value": fingerprint
+    }
+    actorJson['attachment'].append(newPGPfingerprint)