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Ignore sync contexts on messages not from ourselves

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But process the rest of the message normally.
This commit is contained in:
lilia 2015-05-20 12:40:18 -07:00
parent fdd2eb0d3e
commit 7e8b1319a5
2 changed files with 8 additions and 4 deletions
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6
js/libtextsecure.js
View file

@ -38741,8 +38741,10 @@ textsecure.processDecrypted = function(decrypted, source) {
if (decrypted.flags == null)
decrypted.flags = 0;
if (decrypted.sync !== null && textsecure.storage.user.getNumber() != source)
throw new Error("Got sync context on a message not from a peer device");
if (decrypted.sync !== null && textsecure.storage.user.getNumber() != source) {
// Ignore erroneous or malicious sync context from different number
decrypted.sync = null;
}
if ((decrypted.flags & textsecure.protobuf.PushMessageContent.Flags.END_SESSION)
== textsecure.protobuf.PushMessageContent.Flags.END_SESSION) {

6
libtextsecure/helpers.js
View file

@ -156,8 +156,10 @@ textsecure.processDecrypted = function(decrypted, source) {
if (decrypted.flags == null)
decrypted.flags = 0;
if (decrypted.sync !== null && textsecure.storage.user.getNumber() != source)
throw new Error("Got sync context on a message not from a peer device");
if (decrypted.sync !== null && textsecure.storage.user.getNumber() != source) {
// Ignore erroneous or malicious sync context from different number
decrypted.sync = null;
}
if ((decrypted.flags & textsecure.protobuf.PushMessageContent.Flags.END_SESSION)
== textsecure.protobuf.PushMessageContent.Flags.END_SESSION) {