Commit graph

14 commits

Author SHA1 Message Date
Hubert Chathi
ebc156e7c2 re-add null termination in javascript
because older versions of emscripten don't support the length argument to
UTF8ToString.
2019-04-08 15:54:02 -04:00
Damir Jelić
071029c201 javascript: Switch from deprecated Pointer_stringify() to UTF8toString().
The Pointer_stringify() function is deprecated and has a couple of
issues because it tries to guess the encoding of the buffer. In some
cases it can ignore the length parameter which could end up in
inconsistencies.

Switch to UTF8toString() that takes a length parameter and respects,
that way we don't need to allocate an additional byte for a NULL byte.
2019-04-08 15:18:28 -04:00
David Baker
e73ebcea67 Merge remote-tracking branch 'origin/master' into dbkr/pk_private_export_import 2018-10-10 20:15:40 +01:00
David Baker
602c00a8d6 Dual-build wasm and asm.js olm 2018-10-04 20:09:54 +01:00
David Baker
263b94428a Another day, another interface
Change the interface again, hopefully this time a bit more normal.
Now we wrap the emscripten module completely and just expose the
high level objects.

The olm library export is now imported as normal (ie. returns
a module rather than a function returning a module) but has an
`init` method which *must* be called. This returns a promise
which resolves when the module is ready. It also rejects if the
module failed to set up, unlike before (and unlike the
promise-not-a-promise that emscripten returns).

Generally catch failures to init the module.
2018-09-25 17:13:29 +01:00
David Baker
5e87db615a Make OLM_OPTIONS work again
The closure compiler was just renaming the variable so it never
would have picked them up. Make it an extern so it knows what to do.
2018-09-21 16:35:17 +01:00
David Baker
122867c45c WebAssembly support!
Quite a lot going on in this PR:
 * Updates to support recent emscripten, switching to WASM which is now the default
 * Use emscripten's MODULARIZE option rather than wrapping it ourself, since doing
   so in pre-post js doesn't work anymore.
 * Most changes are moving the emscripten runtime functions to top-level
   calls rather than in the Module object.
 * Get rid of duplicated NULL_BYTE_PADDING_LENGTH
 * Fix ciphertext_length used without being declared
 * Fix things that caused the closure compiler to error, eg. using
   OLM_OPTIONS without a declaration.
 * Wait until module is inited to do OLM_ERROR = olm_error()

The main BREAKING CHANGE here is that the module now needs to initialise
asyncronously (because it has to load the wasm file). require()ing olm
now gives a function which needs to be called to create an instance.
The resulting object has a promise-like then() method that can be used
to detect when the module is ready. (We could use MODULARIZE_INSTANCE
to return the module directly as before, rather than the function,
but then we don't get the .then() method).
2018-09-21 16:01:51 +01:00
Richard van der Hoff
51b141ecb6 Let apps override emscripten settings
Read settings from OLM_OPTIONS to allow apps to configure some options. In
particular, this is useful for setting the heap size.
2016-12-14 11:46:12 +00:00
Richard van der Hoff
1bf807bf33 Better handling of exceptions during loading
If we get an exception during load, don't define half of window.Olm (which
confuses apps).

This is a partial fix to https://github.com/vector-im/riot-web/issues/2726.
2016-12-12 16:52:03 +00:00
Richard van der Hoff
a5fe3f605a Fix a console error when importing in a browser
something about 'global' not defined
2015-12-02 14:06:01 +00:00
Mark Haines
5a60e543a5 Add more workarounds for closure compiler in javascript bindings 2015-07-21 14:30:46 +01:00
Mark Haines
f0bb8e03b3 More fixes to the javascript bindings to get them to behave with browserify 2015-07-20 16:33:45 +01:00
Mark Haines
bede3a8499 Tweak the javascript bindings so that they will work with Node.js 2015-07-14 16:45:00 +01:00
Matthew Hodgson
09d4125ff1 Rename axolotlpp as olm to avoid confusion with Axolotl-the-spec and Axolotl-the-OWS-libraries at moxie's request 2015-06-27 01:15:23 +02:00