Go-XMPP-Upload

An implementation of a custom upload service for XEP-0363: HTTP File Upload written in Go. Its tested and documented for usage with the Ejabberd server and Postgres as database to store upload slots and file info.

Tested with Conversations (Android) and Gajim (with http-upload plugin).

Environment Variables

Configuration is done through various environment variables. The Following vars are available:

Variable	Description	Example	Required
EJABBERD_PORT_5222_TCP_ADDR	Host- or IP-Address of the Ejabberd Server. Only this IP (and IPs listed in ALLOWED_IPS) can request a upload slot (Authentication). If you use Docker this Variable is filled automatically through container linking.	172.17.0.2	✓
POSTGRES_PORT_5432_TCP_ADDR	Host- or IP-Address of your Postgres server. If you use Docker this Variable is filled automatically through container linking	172.17.0.3	✓
POSTGRES_USER	The Postgres user	postgres	✓
POSTGRES_PASSWORD	The Password for the given user	hunter2	✓
POSTGRES_DATABASE	Postgres database name	xmpp-upload	✓
ALLOWED_IPS	Comma separated list of additionally allowed IP addresses which can request upload slots.	127.0.0.1, 192.168.0.1	x
PUT_GET_URL_HOST	The host part of the PUT/GET URL which will send to the Jabber Client	http://yourdomain.tld	✓
XMPP_UPLOAD_LISTEN	Listening string for the xmpp-upload http server. If you use Docker the port must be set to 8080 except if you change the Dockerfile to expose another port	:8080	x
UPLOADED_FILES_DIR	Directory for storing uploaded files. Make sure this directory exists. (Standard: /opt/xmpp_uploads)	/opt/xmpp_uploads	x

Preparations

Checkout

Clone this Repository in your $GOPATH

Configuring with Ejabberd

Make sure to use a version of Ejabberd which supports mod_http_upload (e.g. >= 15.10).

Add the following to your ejabberd.yml config file in the modules part

  mod_http_upload: 
    service_url: "https://$PUBLIC_ACCESSABLE_XMPP_UPLOAD_HOST/slot"

Replace $PUBLIC_ACCESSABLE_XMPP_UPLOAD_HOST with your xmpp-upload listening host/ip and port and change https to http if you dont use ssl.

Importing Postgres SQL scheme

Import file postgres-scheme.sql to your database using a shell with psql or with pgadmin

Using with Docker

Build Image

There is a Dockerfile in the repo root dir, so you can simply run the following from there:

docker build -t xmpp_upload:latest .

Create Data Container

docker create --name xmpp-upload-data -v /opt/xmpp_uploads:/opt/xmpp_uploads xmpp_upload:latest

Run

docker run -d \
    --name "xmpp-upload-run" \
    --volumes-from xmpp-upload-data \
    --link ejabberd-run:postgresql \
    --link postgres-run:postgresql \
    -v /opt/xmpp_uploads:/opt/xmpp_uploads \
    -p 8080:8080 \
    -h 'yourhostname' \
    -e "POSTGRES_USER=postgres" \
    -e "POSTGRES_PASSWORD=hunter2" \
    -e "POSTGRES_DATABASE=xmpp-upload" \
    -e "PUT_GET_URL_HOST=http://yourdomain.tld" \
    -e "UPLOADED_FILES_DIR=/opt/xmpp-files"
    xmpp_upload:latest

To utilize SSL you can run xmpp-upload behind a nginx acting as SSL proxy otherwise the generated random url hashes could be sniffed.

Using without Docker

Run the following from the root dir of the repo inside your $GOPATH

go install && \
env EJABBERD_PORT_5222_TCP_ADDR="$EJABBERD-HOST" \
POSTGRES_PORT_5432_TCP_ADDR="$POSTGRES-HOST" \
POSTGRES_USER="$POSTGRES_USER" \
POSTGRES_PASSWORD="$POSTGRES_PASSWORD" \
POSTGRES_DATABASE="xmpp_upload" \
ALLOWED_IPS="$ALLOWED-IPS" \
PUT_GET_URL_HOST="$PUT-GET-URL-HOST" \
XMPP_UPLOAD_LISTEN="$XMPP-UPLOAD-LISTEN" \
UPLOADED_FILES_DIR="/opt/xmpp-files" \
../../../../bin/go-xmpp-upload

Backup

TODO

Files

TODO

Postgres data

TODO

Copyright (c) 2016 Tobias Hartwich (tobias.hartwich@gmail.com)