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* Add certificate pinning on https service requests Make https requests to the server using node apis instead of browser apis, so we can specify our own CA list, which contains only our own CA. This protects us from MITM by a rogue CA. As a bonus, this let's us drop the use of non-standard ports and just use good ol' default 443 all the time, at least for http requests. // FREEBIE * Make certificateAuthorities an option on requests Modify node-based xhr implementation based on driverdan/node-XMLHttpRequest, adding support for setting certificate authorities on each request. This allows us to pin our master CA for requests to the server and cdn but not to the s3 attachment server, for instance. Also fix an exception when sending binary data in a request: it is submitted as an array buffer, and must be converted to a node Buffer since we are now using a node based request api. // FREEBIE * Import node-based xhr implementation Add a copy of https://github.com/driverdan/node-XMLHttpRequest@86ff70e, and expose it to the renderer in the preload script. In later commits this module will be extended to support custom certificate authorities. // FREEBIE * Support "arraybuffer" responseType on requests When fetching attachments, we want the result as binary data rather than a utf8 string. This lets our node-based XMLHttpRequest honor the responseType property if it is set on the xhr. Note that naively using the raw `.buffer` from a node Buffer won't work, since it is a reuseable backing buffer that is often much larger than the actual content defined by the Buffer's offset and length. Instead, we'll prepare a return buffer based on the response's content length header, and incrementally write chunks of data into it as they arrive. // FREEBIE * Switch to self-signed server endpoint * Log more error info on failed requests With the node-based xhr, relevant error info are stored in statusText and responseText when a request fails. // FREEBIE * Add node-based websocket w/ support for custom CA // FREEBIE * Support handling array buffers instead of blobs Our node-based websocket calls onmessage with an arraybuffer instead of a blob. For robustness (on the off chance we switch or update the socket implementation agian) I've kept the machinery for converting blobs to array buffers. // FREEBIE * Destroy all wacky server ports // FREEBIE |
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README.md
Signal Desktop
Get Signal Private Messenger on the Chrome Web Store!
Signal Desktop is a chrome packaged app that links with your Signal Android or Signal iOS app.
Got a question?
The best place to ask questions is http://support.whispersystems.org.
Found a Bug?
Please search the existing issues for your bug and create a new one if the issue is not yet tracked!
https://github.com/WhisperSystems/Signal-Desktop/issues
Contributing Translations
Interested in helping to translate Signal? Contribute here:
https://www.transifex.com/projects/p/signal-desktop
Contributing Code
Please see CONTRIBUTING.md for setup instructions and contributor guidelines. And don't forget to sign the CLA.
This repository is set up with BitHub, so you can make money for committing to Signal. The current BitHub price for an accepted pull request is:
Contributing Ideas
Have something you want to say about Open Whisper Systems projects or want to be part of the conversation? Get involved in the community forum!
Contributing Funds
You can add funds to BitHub to directly help further development efforts.
Cryptography Notice
This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See http://www.wassenaar.org/ for more information.
The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
License
Copyright 2014-2017 Open Whisper Systems
Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-3.0.html