Open source Slack-alternative in Golang and React - Mattermost
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bezumkin and crspeller Do not force downloading of shared public files (#9412)
I believe we don't need to force downloading of shared public files, because `writeFileResponse` method will compare its MIME type with `MEDIA_CONTENT_TYPES` and output it inline or as attachment automatically.

Usually we are share images and it is much more convenient to see them without downloading.
Latest commit 74c9223 Sep 21, 2018
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api4 Do not force downloading of shared public files (#9412) Sep 21, 2018
app Move file backend to its own service (#9435) Sep 20, 2018
build add pre-package plugins to the MM package (#9114) Jul 16, 2018
cmd Move file backend to its own service (#9435) Sep 20, 2018
config Revert "disable EnablePublicChannelsMaterialization by default (#9418)… Sep 18, 2018
doc/help Adding page to direct users to docs.mattermost.com Feb 25, 2016
einterfaces MM-11243: Make Elasticsearch work after enabling without restart. (#9146 Jul 26, 2018
fonts MM-10766 - Replacing default profile image font (#8955) Jul 5, 2018
i18n translations PR 20180917 (#9428) Sep 20, 2018
imports MM-9728: Online migration for advanced permissions phase 2 (#8744) May 14, 2018
jobs MM-10502: Only cluster master should run job schedulers. (#9174) Jul 31, 2018
manualtesting Pr 9039 (#9187) Jul 30, 2018
migrations Merge branch 'master' into plugins-2 Jun 30, 2018
mlog MM-11029 Adding plugin logging functionality. (#9034) Jul 3, 2018
model Add ChannelId and TeamId to PostActionIntegrationRequest (#9384) Sep 19, 2018
plugin Fail plugin activation if no web app and server component (#9438) Sep 21, 2018
scripts Move file backend to its own service (#9435) Sep 20, 2018
services Move file backend to its own service (#9435) Sep 20, 2018
store materialize PublicChannels without triggers (#9424) Sep 17, 2018
templates Break HTML blocks to individual strings (#8903) Jul 20, 2018
tests MM-10699 Add channel renaming to CLI (#9094) Jul 18, 2018
utils Move file backend to its own service (#9435) Sep 20, 2018
vendor Updating dependancies. (#9303) Aug 28, 2018
web MM-11420: plugins: compute bundle hash on load (#9172) Jul 31, 2018
wsapi Structured logging (#8673) Apr 27, 2018
.editorconfig Update .editorconfig to end files with newlines (#4533) Nov 11, 2016
.gitignore Ignore rolled log files (#8644) Apr 18, 2018
.sass-lint.yml Updating asss lint stuff with other scss improvements Mar 17, 2016
CHANGELOG.md Changelog link (#8805) May 30, 2018
CONTRIBUTING.md Add link to developer docs in readme/contributing.md (#9248) Aug 14, 2018
Gopkg.lock Updating dependancies. (#9303) Aug 28, 2018
Gopkg.toml Lock go-hclog and go-plugin dependencies to a revision (#9128) Jul 18, 2018
ISSUE_TEMPLATE.md Update ISSUE_TEMPLATE.md (#8292) Apr 25, 2018
LICENSE.txt Update LICENSE.txt to include plugin/ under Apache License v2.0 (#9205) Aug 1, 2018
Makefile Move file backend to its own service (#9435) Sep 20, 2018
NOTICE.txt Update NOTICE.txt (#9197) Aug 1, 2018
PULL_REQUEST_TEMPLATE.md fix typo in the pull request template (#8521) Mar 27, 2018
README.md Add link to developer docs in readme/contributing.md (#9248) Aug 14, 2018
codecov.yml Disable codecov PR comments Nov 14, 2017

README.md

Mattermost

Mattermost is an open source, private cloud, Slack-alternative from https://mattermost.org.

It's written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL. Every month on the 16th a new compiled version is released under an MIT license.

screenshot at nov 29 14-11-32

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