85 lines
3.4 KiB
Markdown
85 lines
3.4 KiB
Markdown
# Matrix.to
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Matrix.to is a simple url redirection service for the Matrix.org ecosystem
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which lets users share links to matrix entities without being tied to a
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specific app.
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Stylistically it serves as a landing page for rooms and communities.
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## How can I put a badge on my website linking to my matrix room?
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You can use the badge image we've put up at https://matrix.to/img/matrix-badge.svg, and use it in a link like this:
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[](https://matrix.to/#/#matrix.to:matrix.org)
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You can use this Markdown:
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```md
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[](https://matrix.to/#/#matrix.to:matrix.org)
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```
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Or this HTML:
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```html
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<a href="https://matrix.to/#/#matrix.to:matrix.org" rel="noopener" target="_blank"><img src="https://matrix.to/img/matrix-badge.svg" alt="Chat on Matrix"></a>
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```
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to show the badge.
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## How does matrix.to work?
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Matrix.to preserves user privacy by not sharing any information about the links
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being followed with the Matrix.to server - the redirection is calculated
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entirely clientside using JavaScript, and the link details is hidden behind a
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fragment to avoid web clients leaking it to the server. However, acting as a
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landing page it may leak your ip to any number of homeservers involved with the
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entity linked to while fetching previews. There is an opt out under which no
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previews will be loaded.
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Anyone is welcome to host their own version of the Matrix.to app - Matrix.to is
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**not** a single point of failure on the Matrix ecosystem; if the matrix.to
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deployment ever failed, users could trivially copy the room/user/message
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details out of the URLs and follow them manually, or change the hostname to
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point at an alternative deployment of the service. The Matrix.to service could
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also be hosted in an immutable/signed environment such as IPFS to further
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increase its availability and avoid tampering.
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## URL Scheme
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The matrix.to URL scheme is
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| Entity type: | Example URL |
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|--------------|-------------------------------------------------------------------|
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| Rooms: | https://matrix.to/#/#matrix:matrix.org |
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| Rooms by ID: | https://matrix.to/#/!cURbafjkfsMDVwdRDQ:matrix.org |
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| Users: | https://matrix.to/#/@matthew:matrix.org |
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| Messages: | https://matrix.to/#/#matrix:matrix.org/$1448831580433WbpiJ:jki.re |
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The #/ component is mandatory and exists to avoid leaking the target URL to the
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server hosting matrix.to.
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Note that linking to rooms by ID should only be used for rooms to which the
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target user has been invited: these links cannot be assumed to work for all
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visitors.
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(Technically the # and @ in the URL fragment should probably be escaped, but in
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practice for legibility we bend the rules and include it verbatim)
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### Optional parameters
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https://matrix.to/#/#matrix:matrix.org?web-instance[element.io]=chat.mozilla.org
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- `client`, e.g. `client=im.fluffychat`, `client=element.io`
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- `web-instance[]`, e.g. `web-instance[element.io]=chat.mozilla.org`
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- `via`, e.g. `via=mozilla.org`
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You can discuss matrix.to in
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[`#matrix.to:matrix.org`](https://matrix.to/#/#matrix.to:matrix.org)
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## Build Instructions
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1. Install [yarn](https://classic.yarnpkg.com/en/docs/install)
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1. `git clone https://github.com/matrix-org/matrix.to`
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1. `cd matrix.to`
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1. `yarn`
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1. `yarn start`
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1. Go to http://localhost:5000 in your browser
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