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README.md

Telegabber: like Zhabogram, but in Go!

Now it's native, more asynchronous, and does not require to mess your server up with a monstrous third-party interpreter.

The configuration file is compatible with Zhabogram 2.0, so you can easily copy your existing config.yml.

Build

Prerequisites: Go links the binary against the glibc version present in the system where the build process happens, so it should be less or equal to the version of glibc in the system where Telegabber will run.

  • Build TDLib according to TDLib build instructions. Roll back to commit 8d7bda00a5 if the compatibility got broken.

  • Install Go (tested with 1.13, but may work with earlier versions too).

  • Open the source dir in a new shell (to make sure that $GOPATH works) and run make. Dependencies will be installed automatically.

After a successful build, you get a single binary to deploy on your server.

In the deploy directory, you need only three files:

  • telegabber (the binary)
  • config.yml
  • config_schema.json (copy it from the repo)

Installation

A third-party Docker config was prepared to set up telegabber+Prosody: https://github.com/e1z0/telegabber-docker/

Hard way:

First of all, you need to create component listener on your Jabber server. For example, for ejabberd in /etc/ejabberd/ejabberd.yml:

listen:  
  -  
    port: 8888  
    module: ejabberd_service  
    access: all  
    shaper_rule: fast  
    ip: "127.0.0.1"  
    service_check_from: false  
    hosts:  
        "tlgrm.localhost":  
            password: "secret"

Next, rename config.yml.example to config.yml and edit xmpp section to match your component listener:

:xmpp:
	db 'users.db'  
	jid: 'tlgrm.localhost'  
	host: 'localhost'  
	port: 8888  
	secret: 'secret'  
	loglevel: :warn   

Configuration

It is good idea to obtain Telegram API ID from https://my.telegram.org to remove demo key requests limit, and then edit in config.yml:

:telegram:
    :tdlib:
        :client:
            :api_id: '845316' # telegram API ID (my.telegram.org) #
            :api_hash: '27fe5224bc822bf3a45e015b4f9dfdb7' # telegram API HASH (my.telegram.org) #
    ...

Arguments

  • --profiling-port=xxxx: start the pprof server on port xxxx. Access is limited to localhost.
  • --config=/bla/bla/config.yml: set the config file path (default: config.yml).
  • --schema=/bla/bla/schema.json: set the schema file path (default: ./config_schema.json).

How to receive files from Telegram

First of all, you need to set up web server that will serve some directory in your filesystem. Example nginx config:

server {
	listen 80;
	server_name tlgrm.localhost;
	location /content {
		alias /var/zhabogram;
	}
}

You need to set :content: → :path: and :link: config.yml.

Set :path: according to location (for our example it will be /var/zhabogram/content).
Set :link: according to server_name (for our example it will be http://tlgrm.localhost)

How to send files to Telegram chats

You need to setup mod_http_upload for your XMPP server.
For example, for ejabberd in /etc/ejabberd/ejabberd.yml

modules:
  mod_http_upload:
    docroot: "/var/ejabberd/upload" # this must be a valid path, user ownership and SELinux flags must be set accordingly
    put_url: "https://xmpp.localhost:5443/upload/@HOST@"
    get_url: "https://xmppfiles.localhost/upload/@HOST@"
    access: local
    max_size: 500000000 #500 MByte
    thumbnail: false
    file_mode: "0644"
    dir_mode: "0744"

Then you need to setup nginx proxy that will serve get_url path, because Telegram will not handle URLs with non-default http(s) ports.
Example nginx config:

server {
	listen 80;
	listen 443 ssl;

	server_name xmppfiles.localhost;

        # SSL settigns #
        keepalive_timeout   60;
        ssl_certificate      /etc/ssl/domain.crt;
        ssl_certificate_key  /etc/ssl/domain.key;
        ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
        ssl_ciphers  "RC4:HIGH:!aNULL:!MD5:!kEDH";
        add_header Strict-Transport-Security 'max-age=604800';

        location / {
            proxy_pass https://xmpp.localhost:5443;
        }	

}

Finally, update :upload: in your config.yml to match server_name in nginx config.