Fixes a session management problem where, after resolving a conflict
with some contact, that contact would get bad mac as a result of us
sending them a new prekey message before processing a pending conflicted
prekey message received from them earlier.
Fixes#806
// FREEBIE
* libsignal.Curve is now a synchronous interface.
* libsignal.Curve.async is now the asynchronous interface.
* Fixes bugs in session management.
// FREEBIE
The getDeviceObjectsForNumber method returns device objects that contain
nothing but the encodedNumber property. Instead, just deal in deviceIds
until a SignalProtocolAddress is constructed to manage both the number
and deviceId.
// FREEBIE
Now that we simply establish and save a session via SessionBuilder
rather than saving the keys to pass in during encrypt, we can stop
caching them in memory in between the identity key check and the
encryption step.
// FREEBIE
* Apply the same rounding to in message bubbles and conversation list.
Also make them consistent with Android's relative times. Fixes#682
* Show full timestamps when hovering on relative time
* Compute timestamp update delays more precisely:
Set timestamps to self-update as soon as they are able to change
rather than a fixed time since the last update.
* Refactor for customizable/localizable relative times
* Update timestamp tests
* Log timestamp update intervals to help debug #460
In the case of a double send (same message encrypted and sent twice due
to key conflict bug), we would mark the first instance read twice rather
than marking both instances read. Fix by searching for matching messages
that have not yet been marked read.
// FREEBIE
When deleting all messages in a conversation, the entry in the left pane
should be inserted into the alphabetical portion of the list. To keep it
in this collection, do not nullify active_at.
To ensure the list view is keeping itself correctly sorted, make sure
that resorting behavior is triggered any time a relevant attribute is
changed.
This fixes deleted conversations jumping to the top of the list, and
conversation order scrambling when getting a group or contact sync
message from our master device.
Fixes#734
// FREEBIE
For messages that failed to send due to network errors, this change
allows retrying them directly from the main conversation view rather
than only from the message detail view.
// FREEBIE
Previously, if a message was sent in between the receive time of an
incoming message and the time it is actually added to the conversation's
message collection (which only occurs later after several async
callbacks), the incoming message would be inserted not-at-the-end of the
collection since it is ordered by receive time. This tricked the front
end into assuming the message was an older message instead of a new one.
Fixes#490
// FREEBIE
The onChangeActiveAt listener promotes newly activated conversations to
the top of the inbox. By firing on an 'add' event, if the conversation
list happened to load after the inbox frontend was initialized, each new
entry would be incorrectly moved to the top, effectively reversing the
list.
// FREEBIE
Prevent races between encrypt and decrypt calls, and other read/write
operations on the session store by serializing session io ops per
device.
Possible fix for #535
// FREEBIE
Remove individual messages from Notifications when marked read.
Previously this was only done from the conversation model when marking
the entire conversation as read.
Fixes#717
// FREEBIE
Order conversation list by timestamp instead of active_at. The former is
the send time of the most recent message. The latter is typically the
receive time of that message. This can cause mis-ordering if you send a
message while processing a backlog of incoming messages.
Fixes#617
// FREEBIE
Don't save the change until we successfully process the message, but
make it first so that the user sees the error disappear when the new key
is accepted.
// FREEBIE
Previously, we switched to not updating the notification popup on a
removal, since this usually respawns a new notification popup
unexpectedly. However, when the last relevant notification is cleared
(ie, by opening/reading the thread before the notification times out and
disappears on its own) we should clear the existing popup if there is
one.
// FREEBIE
If the replay failed due to a bad mac or other decryption error for some
other reason we still want to clear the conflict. If it failed because
it's still in conflict then the newly returned error will reflect that
and be saved.
// FREEBIE
This flow broke a bit with transition to modal debug log.
Restructure such that the loading class can be applied to an appropriate
element inside the modal. Ensure that the input elements are hidden when
submit is clicked, the result elements are shown when the log upload is
completed.
// FREEBIE
Untangle these two views into their component parts, consolidating all
the key conflict logic in the key conflict view. Contact view now simply
renders basic contact info and miscellaneous errors but not conflicts or
message errors.
// FREEBIE
Network errors render as a resend dialogue at the top of the message
detail and need not be re-reported in the contact list or errors
section.
// FREEBIE
Occasionally these will fail if they happen to be executed before the
necessary dependencies (storage, ConversationCollection) are declared.
// FREEBIE
This should really only be called once, from background.js.
Calling it twice can cause doubled listeners for the registration_done
event, which in turn leads to duplicate post-registration callbacks,
dual sync requests, and an eventual datastore inconsistency.
Fixes#670
// FREEBIE
Previously, notifications were persistent until explicitly dismissed
from the notification center (a bell icon in the system tray), but that
ui has been removed from chrome*, so now updating on remove is
unexpectedly creating a new notification pop up.
*http://blog.chromium.org/2015/10/streamlining-notifications-on-desktop.htmlFixes#667
// FREEBIE
Because remote clients will delete all sessions in response to an end
session message, regardless of which device it came from, when our
linked device sends an end session message, we must also end all
sessions with the destination.
This change moves the end session flag processing to processDecrypted,
which is shared between handlers of sent messages, data messages, and
messages which are re-tried after resolving identity conflicts.
// FREEBIE
Help debug bad session errors by logging some envelope info about the
message we are about to decrypt. With this, if there is a decryption
error (e.g., bad mac or no session) it is clear from the logs what
number and device message sent the bad message.
Also log when we send and receive end session messages and when we close
sessions for certain devices.
// FREEBIE
Since the introduction of infinite scroll, the delete messages function
has only deleted the currently loaded set of messages in a conversation.
To fix this, we should fetch all the messages and then delete them.
Fixes#645
// FREEBIE
When `millis_since` becomes larger than one week, `delay` becomes
negative and is set to Zero. This causes an infinite loop and therefore
100% CPU usage (single thread).
// FREEBIE
Some basic modifications to the Confirmation Dialog:
* Always attached to <body> regardless of view that called it.
* Always centered horizontally on screen.
* A black semi-transparent overlay is now displayed over everything, and under
the dialog.
* Various other style changes.
fixes#389
// FREEBIE
Previously we would delete our own key from the trust store when
re-linking, in case it changed. We can also immediately take one step
further and store the new key. Typically this happens in the course of
requesting sync info from the master device, except in the case of
standalone clients.
Closes#596
// FREEBIE
* Move install flow i18n logic to install_view.js (from options.js)
* Switch to using placeholders (instead of jQuery) for i18n messages with html.
* Switch to using moustache template instead of jQuery for i18n substitution.
// FREEBIE
Sometimes an error is thrown while processing groups from a group sync
message. We still want to fire the groupsync event when we're done
handling all the data, even if some of it was bad.
Similar in function to an xhr request, a textsecure.SyncRequest object
is initialized from a message sender and receiver pair and initiates a
request for sync from the master device. It later fires a success event
when both contacts and groups are done syncing, or a timeout event after
one minute.
// FREEBIE
Group updates in which nothing change should still display 'Updated the
group'. Previously they would display as empty message bubbles. Fixed by
ensuring that the 'group_update' attribute is set on the model, even if
it is an empty object.
// FREEBIE
Clear the registration flag when we detect that our credentials have
been invalidated, but retain the knowledge that we've been registered
before, so as to preserve post-first-install behaviors like skipping the
introductory install screens, and accessing the main ui.
Fix#541
// FREEBIE
We should not ack envelope protobufs that fail to decode correctly. If
the server happens to send us such a thing it probably indicates a
protocol mismatch between it and the client, in which case the client
needs to update and re-receive the failed message.
// FREEBIE
The user-agent string includes the information needed (OS + Chrome version) and the console.get() function seems just right. The debugLog itself is not manipulated.
Only show sent_at for outgoing messages, matching Android.
The received_at timestamp reflects the time a message was saved locally.
It is necessary on both incoming and outgoing messages for sorting
purposes, but can be confusing in the context of an outgoing message
detail view, since users don't think about themselves "receiving" their
own messages, and may even interpret this as the time that a message was
received by their conversation partner's device.
// FREEBIE
This chrome alarm business is in place to help us wake up and check for
messages when running in the background. Without it, chrome will suspend
our app after a short period of inactivity. Upon waking, if the app
discovers it is not linked, it prompts you to link it. However, if
you've declined registration (i.e., because you already maxed out your
linked device limit, but chrome auto-added the app to another machine),
we should just wait until explicitly launched again.
Fixes#519
// FREEBIE
Previously, when processing a backlog of sync messages and their
delivery receipts, we would fail to mark some messages as delivered even
though we got a receipt. This was due to an async race condition between
saving a sync message and fetching it after the receipt arrives.
Fix by re-ordering idb requests such that we save the message first and
fetch it after.
Fixes#479
// FREEBIE
Typically, a view can specify its templateName and then use the default
render method on Whisper.View, except in some special cases like message
view or message detail where other operations are performed during
render.
// FREEBIE
While typing a number, the new contact element is faded out. When the
number becomes valid it is opaque. If the element is clicked while
invalid, it displays 'Invalid number' and waits for the input to change
again. A new conversation is only opened if the number is valid.
// FREEBIE
Refactor libphonenumber.validateNumber into libphonenumber.parseNumber,
which encapsulates the try-catch pattern used in number parsing and
returns an object of info about the input number rather tha throwing
since we expect to get some invalid number inputs the user is typing.
In the conversation model,
* Separate phone number validation from search token updating.
* Perform token update before save if the number was valid.
* Stop storing unneeded number variants as conversation properties.
// FREEBIE
Here lies the remains of the old compose flow, which must eventually be
restored for group creation flow, but will likely be rewritten entirely.
// FREEBIE
Search view triggers an open event when a valid phone number is entered
and the 'Create new contact' card is clicked.
Inbox view should listen and respond to this event. It should also
disregard select events on the new contact element since those are fired
before phone number validation.
Finally, the search view can stop listening to select events because the
inbox view is already doing so.
// FREEBIE
Search box finds or creates a conversation given a phone number in
local (to the user's region) or international format.
Previously you had to enter e164 format to set up the conversation
correctly.
If the number is not valid, do not open the conversation.
TODO: user feedback on invalid numbers.
// FREEBIE
By adding the drag and drop support for media files, the default
event handlers were overwritten. Thus drag and drop did not support
text. Now, the drag and drop listeners revert to the default behaviour
when the user does not drag a file.
Resolves: #478
This file is loaded by the background page, which means it is already
bound to the background page's global context. This was not true at some
time in the distant past but is true now.
// FREEBIE
This line was never being hit due to the duplicate one above (#L166).
Peeking at the server code shows that 403 is only given in response to
registration attempts, where it does in fact indicate an invalid code.
// FREEBIE
Previous commit removed notification models from the global collection
but did not actually update the existing notification.
This commit refactors the notification interface to allow us to update
it without re-surfacing the notifcation onscreen.
// FREEBIE
Fix bug where resending due to failed network connection would fail
silently.
Broken in 7b6820 refactor which changed arguments to transmitMessage
// FREEBIE
Previously, libtextsecure would send a sync message automatically
when appropriate. This fails if any recipient has a key conflict
or if our network connection fails mid-send.
Instead, when appropriate, return a the DataMessage encoded as an array
buffer for later syncing. This lets the application choose when to send
it, which we now do after any successful send to a recipient, rather
than after all recipients are successfully sent to.
Eventually we should move the DataMessage protobuf construction and
group sending logic to the application layer entirely, in which case
we wouldn't need libtextsecure to construct the sync message either.
Fixes#408
Fix bug where re-installing would cause sync messages to fail and
produce unresolvable error indicators on messages that were actually
sent.
// FREEBIE
If you had an inaccurate unread count due to previously broken unread
tracking, it's possible to go negative and never fully recover. Fixed
by clamping to zero.
// FREEBIE
Messages that are received in the active conversation while the window
is focused, are automatically marked as read.
The conversation appears as unread for a split second as the incoming message
arrives but it gets marked as read as soon as the message is displayed.
The window title now shows the global number of unread messages as
"Signal (1)". This way the user can see the number of unread messages
in the task bar and when alt-tabbing.
Resolves: #384
Fixed the global counting of unread messages. This makes the "unreadCount"
variable in storage to stay in sync with the sum of unread messages in each
conversation. To achieve this, the controller_view updates the global
variable whenever messages are received or read.
encryptMessageFor now requires an array buffer instead of a protobuf.
By converting the message to an array buffer outside the Promise.all, we
avoid allocating a new copy for each device.
// FREEBIE
We don't need to keep them in memory if we're done viewing them,
plus it avoids having to re-render a large collection when we re-open a
conversation. Now that we only load a sensible number of messages at a
time, caching them between usages is less valuable. Removing them from
the collection should free them for garbage collection.
// FREEBIE
Messages with images or media were causing the scroll position to jump
around when they loaded, because rendering them changed the height of their
elements from 0 to full-height sometime after they were inserted into
the DOM.
Now when rendering attachments, we wait for them to load so they can
render at full height immediately, then warn our parent message list
before and after a potential height change, so the scroll position can
be saved and reset.
// FREEBIE
Only load the most recent messages when initially rendering a
conversation. Scrolling to the top of a message list loads older
messages.
This required some slight refactoring of how we insert message elements
into the dom. If the message is added to the end of the collection,
append it at the end. Otherwise, assume it is an older message and
prepend it.
When adding elements to the top, reset the scrollPosition to its
previous distance from scrollHeight. This keeps the current set of
elements fixed in the viewport.
// FREEBIE
Add db adapter support for clean cursor termination when passing
options.index and options.limit together. Previously this would cause a
crash because options.conditions was undefined.
// FREEBIE
Renames extension.windows.beforeUnload to onSuspend, to match the
underlying chrome api call. onClosed fires when the frontend app window
is closed, while onSuspend fires when the background page is closed or
refreshed (which amounts to an app restart).
Frontend views are initialized iff the inbox window is opened, and so
should always be listening to onClosed in order to know when they are no
longer needed.
// FREEBIE
1. Update chrome version because v40 fails to clear the session store
2. Add message view to test page and fix bad reference to chrome
3. Update the message view template in tests with new timestmap markup
// FREEBIE
Create a cleaner seperation between generating notifications
and updating frontend conversation views. The former is now
handled by `conversation.notify` while the latter is achieved
by triggering an event on the conversation model, which will
only be acted on if there are any views listening for it.
Additionally, instead of re-fetching the entire message history,
which is overkill, just add or update the new/modified message.
This will help speed up the newmessage event handler and also
help avoid unnecessary re-rendering when resolving key conflicts.
// FREEBIE
Follow up to b0da4910. When inferring membership of the sender in an
unknown group, remember to save and return the group members.
Generally, this should only effect standalone clients unless someone
managed to clear their groups db table, since linked clients get group
info synced at registration.
// FREEBIE
If you're the last member of the group, it doesn't make sense to send
messages to it. Previously, we would wait forever for a callback,
causing a stuck pending state indicator.
// FREEBIE
Follow up to ddd2e67eb5
but for incoming messages.
* Conflict state sometimes failed to be removed even though the
conflict was resolved.
* Messages failed to re-render after a conflict. We want to
re-render only the error state on outgoing messages, to avoid
flickering attachments. On incoming messages, we need to call
render to populate the message text, avatar, etc...
// FREEBIE
Display format consistent with Android:
* relative time for everything from today
* Day of week + time for within the past 7 days
* Static Month Day time for everything older
Each timestamp will only update as often as needed to stay accurate,
which is once a minute, once an hour, once a week, or never.
// FREEBIE
* Don't open message detail views from message detail views
* When message errors change, re-render the error state, but
not the message markup and contents.
* Fix renderErrors bug not removing the error class correctly.
// FREEBIE
Previously, with a mix of text and media messages in conflict,
asynchronous callbacks aligned so as to fail to remove some of
the conflict objects on messages.
Fix by serializing conflict processing, but making sure to move
on through the message list even if some conflict resolutions fail.
Fixes#370
// FREEBIE
* Refactor options.js into a view
* Break up install flow into a series of screens
* Remove bootstrap
* Make installer window static size, mostly to facilitate positioning
// FREEBIE
When we re-register, our deviceId might change, which makes our sessions
are no longer valid since the recipient will see us as a new device.
Fixes#388
Fix a bad loop scope bug in getKeysForNumber by using forEach.
Refactor the initial process of establishing key material for devices
that do not have open sessions.
// FREEBIE
For non text messages (ex: media messages and group updates), the
lastMessage field was being populated with empty string, resulting in an
empty message preview in the conversation list. Instead, display 'Media
message' or 'Updated the group', etc...
// FREEBIE
These functions accept an array buffer and extract an AES and MAC key
from it without verifying it has the appropriate length. Ciphertext
messages are similarly dissected. The slice function does not raise an
error on out of bounds accesses but instead returns an empty or
partially-filled array. Empty or short arrays will be passed through to
the window.crypto.subtle API, where they will raise an error. We should
not rely on the Web Crypto API to validate key lengths or for MAC checks
to fail. Instead, validate the lengths of given parameters before
extracting their components.
// FREEBIE
This may increase processing latency a bit, particularly with large
attachments, but will ensure that messages are dispatched in the order
they are received.
It would be nice to enforce ordering on only the dispatch step, so that
we could, for example, decrypt the next websocket message while waiting
for an attachment to download, but that will require a more complicated
refactor. Will stick with the quick fix for now and revisit later.
Fixes#342
// FREEBIE
It's rare that we get in a state where we have a device record without a
session, but we should handle errors gracefully in that case. Catch them
and register them, except for identity key errors which are registered
in handleResult.
// FREEBIE
fixup error handling // FREEBIE
This function dynamically declares a bunch of functions which bind to
its input arguments. Instead, use a new prototypal class to define
these functions within the context of a particular message.
// FREEBIE
Add a pendingMessages object to MessageSender. This object holds
one promise per recipient number. We init this promise with
Promise.resolve(), and chain on promises for message sending, replacing
the previous promise with the newly chained promise each time. If the
current promise resolves and finds that it is still the last promise
in the chain, it removes itself.
Websocket resources should have their keepalive timers reset whenever a
message comes in. This is a nicety that slightly reduces the amount of
traffic we send when actively messaging.
Previously this was handled by MessageReceiver, but it's a bit cleaner
to just have the WebsocketResource add an extra 'message' event handler.
// FREEBIE
Bind the sub-view to some data when we initialize it, rather than
passing it in on render. That means the image view click handler will
only ever open the blob we bound it to, even if its src attr changes for
some reason, which should never happen, but if it does, it's nice to
guard against opening arbitrary urls found in the dom.
// FREEBIE
Images that are attached to messages, either sent or received
can be opened in a new tab by clicking on them.
The previous approach that used Anchors to open the image
attachmets failed in various systems because:
- Chrome on Windows recognised "blob" as protocol and tried
to find an app for it
- Chromium on Ubuntu didn't open a new window to load the URL
The new approach adds a "click" listener to the IMG element and
opens the link using window.open (which seems to be working globaly).
Resolves: #252
In rare cases, a race between delivery receipts and outgoing message
requests can cause the sent flag to be reversed. Fix by marking messages
sent at the same time they are marked delivered.
// FREEBIE
Per WhisperSystems/TextSecure@8a1428e, bump GIF limit to 5MB, and
audio/video limit to 100MB. Update toast to notify in correct
human-readable units. The only kB size limit is for images, and will
trigger only if after scaling up to 4 times, the rescaled image did not
come in under the size limit without unacceptable quality loss.
Closes#354
Using the search field produces a filtered view of all contacts and
groups containing the input. To make this fast and scalable, add an
index on a 'tokens' array containing words from the conversation name
and different forms of phone number.
Closes#365
// FREEBIE
Split into separate encrypt and transmit functions. Let the encryption
function also handle all wire formatting (ie, jsonification and base64
encoding), which simplifes TextSecureServer.sendMessages, removes a
TODO, and lets us save fewer params to make network errors replayable.
// FREEBIE
The resend button should disappear once you've clicked it. This was not
happening because the message detail view held a cached copy of the old
message errors. Fix by re-reading the errors when we re-render.
// FREEBIE
This ensures that the containing promise is rejected without triggering
the side effects of an uncaught exception, such as causing the debugger
to pause.
// FREEBIE
Opening two message-detail views in two separate conversations would
disappear one of the conversations. Fixed by better encapsulating the
sub-views of a conversation.
// FREEBIE
Previously would fail to register keys by using the wrong username.
The username should be <number>.<deviceid> once we've confirmed our
account and received a deviceId from the server.
// FREEBIE
`tryMessageAgain` is the routine called when re-trying a message that
failed to decrypt due to an IncomingIdentityKeyError. This handling
needs to move to MessageReceiver because it depends on
`processDecrypted` to handle incoming message protos, which depends
on a server instance in order to download attachments.
// FREEBIE
textsecure.MessageSender takes server url and credentials and returns
a message sending interface configured for that server.
Used a wrapper function to insert a TextSecureServer instance into
sendmessage.js code at runtime. This will result in function duplication
between different MessageSender objects, pending further refactoring to
use prototypal inheritence.
// FREEBIE
Following the pattern from previous commit, let the server class accept
a url and login credentials from the caller. Then integrate into
MessageReceiver and AccountManager.
// FREEBIE
An exception to the previous commit, for incoming messages we should not
show a mysterious empty bubble. Instead there is some generic
non-technical error message.
// FREEBIE
Change how message errors are rendered. Errors associated with a number
will be shown under that number in the detail view rather than piling up
in the message bubble.
// FREEBIE
Fix inconsistency in error format, where we sometimes get an unexpected
Error object and sometimes get a wrapper object containing an Error.
Also start saving network errors.
// FREEBIE
Refactor outgoing message error handling to use the same success and
error handlers. This creates a somewhat strange pattern, where we call
send and pass in the promise that resolves when sending is complete, but
there's enough variety in the libtextsecure syntax for different message
sending routines that it belongs at the conversation level and only the
post-processing stuff is really shared by all messages.
// FREEBIE
There is no in-window navigation in the chrome app environment, so nix
the first if-clause here. Also make it programmatically reloadable and
fix indentation.
// FREEBIE
1. This is nonstandard behavior, not supported by any other clients. It
may help sometimes but will also cause bugs (see 2)
2. iOS doesn't handle group updates with missing fields. all fields must
be populated, and libtextsecure doesn't have any knowledge of the group
name or avatar, so these updates will clobber group state on iOS.
// FREEBIE
This one's been around since forever, but only manifests when someone
leaves the group and comes back. In that case we fail to reinit their
numberRegistrationId object, which causes a npe when we try to send
send them group messages.
Affected parties must ask their fickle friends to leave/join again.
// FREEBIE
Rather than asking for a global target, the message receiver implements
the EventTarget interface itself. It does not expose the dispatchEvent
method, however. This ensures that events can only be triggered from
within the internal MessageReceiver class, which means we no longer need
to namespace them.
// FREEBIE
Let the libtextsecure consumer pass in their own server url, username,
password, and signaling key, as with libtextsecure-java.
Also brings reconnect logic up into the MessageReceiver class, which
is the only place it should apply.
Encapsulate the global conversation cache collection against accidental
access, avoiding the data-clobbering bug fixed in previous commit.
Also move some one-off program initialization code from panel controller
to background.js
// FREEBIE
The conversation's contactCollection only contains references to the
current membership, and will not provide contact info for people who
have left the group, causing their messages to render without numbers or
avatars.
// FREEBIE
When confirming the creation of a one on one conversation with a new
contact, the first click would do nothing but the second click would
work. Now the first click works.
Fix by only reject new conversation creation if not saved.
// FREEBIE
Fixes auto archive when deleting all messages, and auto unarchive when
sending a new message. Previously, the convo would not reappear in the
inbox after deleting all messages.
// FREEBIE
Only fetch them from a frontend view. If the conversation is not open,
we don't need to load the messages, and if we do load them, they will
render before we've done the initial contact info loading (as
implemented in 74e96ce).
Fixes#344
// FREEBIE
This listener is doing way more work than necessary to update the dom by
removing all the list items and re-creating them. This also causes the
bug where selected state is cleared when new messages arrive, not to
mention binding new event listeners without unbinding the old ones.
Fix by simply promoting an element to the top of the list when it's
active_at value changes, rather than re-rendering the whole list. This
could backfire if the value gets changed to an earlier timestamp but for
now we assume that won't happen.
// FREEBIE
The chrome.notifications api renders iconUrls at full bleed, as opposed
to the Web Notifications api, which adds padding. This was causing our
identicons to look a bit over stretched.
Fixed by rendering them a bit larger and with some padding.
// FREEBIE
Only allow one notification at a time. Use a basic notification for
normal messages, and image notification for image messages, and a list
notification when there are multiple unread messages.
// FREEBIE
Forgot to bind the socket event handler, and the then() handler should
come before the catch() handler or else it will execute every time the
catch handler executes.
// FREEBIE
Always test connectivity with an http request after a websocket closes,
regardless of what code/error it closed with. If that request succeeds,
automatically reconnect the socket.
// FREEBIE
Create a new collection type for the inbox which listens to events on
the main conversation cache. Also don't reload conversation info from
the database as often or when unnecessary.
Fixes#345
// FREEBIE
There's no need to use a custom collection type here since we don't use
any of the ConversationCollection methods. This helps prevent the
introduction of duplicate models for the same chat.
// FREEBIE
The delivery receipt handler should only update messages, so rather than
reloading the conversation and its contacts, only reload the messages.
// FREEBIE
