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Store identity keys in indexeddb

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Let device storage request them from axolotl store rather than storing a
copy.
This commit is contained in:
lilia 2015-04-21 15:54:25 -07:00
parent 7eda48f755
commit 121671c99f
3 changed files with 68 additions and 41 deletions
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53
js/axolotl_store.js
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@ -55,6 +55,19 @@
return res;
}
function equalArrayBuffers(ab1, ab2) {
if (ab1.bytelength !== ab2.bytelength) {
return false;
}
var result = true;
var ta1 = new Uint8Array(ab1);
var ta2 = new Uint8Array(ab2);
for (var i = 0; i < ab1.bytelength; ++i) {
if (ta1[i] !== ta2[i]) { result = false; }
}
return result;
}
var Model = Backbone.Model.extend({ database: Whisper.Database });
var PreKey = Model.extend({ storeName: 'preKeys' });
var SignedPreKey = Model.extend({ storeName: 'signedPreKeys' });
@ -215,31 +228,37 @@
if (identifier === null || identifier === undefined)
throw new Error("Tried to get identity key for undefined/null key");
var number = textsecure.utils.unencodeNumber(identifier)[0];
return Promise.resolve(convertToArrayBuffer(function() {
var map = textsecure.storage.get("devices" + number);
return map === undefined ? undefined : map.identityKey;
}());
return new Promise(function(resolve) {
var contact = new Contact({id: number});
contact.fetch().always(function() {
resolve(contact.get('identityKey'));
});
});
},
putIdentityKey: function(identifier, identityKey) {
if (identifier === null || identifier === undefined)
throw new Error("Tried to put identity key for undefined/null key");
var number = textsecure.utils.unencodeNumber(identifier)[0];
return Promise.resolve((function() {
var map = textsecure.storage.get("devices" + number);
if (map === undefined)
textsecure.storage.put("devices" + number, { devices: [], identityKey: identityKey});
else if (getString(map.identityKey) !== getString(identityKey))
throw new Error("Attempted to overwrite a different identity key");
})());
return new Promise(function(resolve) {
var contact = new Contact({id: number});
contact.fetch().always(function() {
var oldidentityKey = contact.get('identityKey');
if (oldidentityKey && !equalArrayBuffers(oldidentityKey, identityKey))
throw new Error("Attempted to overwrite a different identity key");
contact.save({identityKey: identityKey}).then(resolve);
});
});
},
removeIdentityKey: function(number) {
return Promise.resolve((function() {
var map = textsecure.storage.get("devices" + number);
if (map === undefined)
return new Promise(function(resolve) {
var contact = new Contact({id: number});
contact.fetch().then(function() {
contact.save({identityKey: undefined});
}).fail(function() {
throw new Error("Tried to remove identity for unknown number");
textsecure.storage.remove("devices" + number);
return textsecure.storage.axolotl.removeAllSessions(number);
})());
});
resolve(textsecure.storage.axolotl.removeAllSessions(number));
});
},