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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
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Notwithstanding any other provision of this License, you have
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If the Program specifies that a proxy can decide which future
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Later license versions may give you additional or different
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THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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If the disclaimer of warranty and limitation of liability provided
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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# OpenSAPS
OpenSAPS stands for "Open Slack APi Server". This is an open-source
implementation of Slack API server that can be used to integrate
applications into each other using Slack API.
Initially this project was created for integrating Gitlab and Gitea
into Matrix, because there was no good incoming webhooks support.
# Installation
```
go get -u -v -d lab.pztrn.name/pztrn/opensaps
go install -v lab.pztrn.name/pztrn/opensaps
```
# Configuration
Take a look at ``opensaps.example.yaml`` for configuration example.
Right now there is no documentation about configuration file, but it
will appear in future.
# Usage
The only parameter OpenSAPS binary accepts is a configuration file
path. Do it like:
```
opensaps -config /path/to/opensaps.yaml
```
----
# IMPORTANT NOTICE
This project isn't affiliated nor developed by Slack itself.

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package config
import (
// stdlib
"errors"
"fmt"
"io/ioutil"
"os/user"
"strings"
// local
"lab.pztrn.name/pztrn/opensaps/config/struct"
// other
"gopkg.in/yaml.v2"
"lab.pztrn.name/golibs/flagger"
)
type Configuration struct {}
// Returns configuration to caller.
func (conf Configuration) GetConfig() *configstruct.ConfigStruct {
return config
}
// Gets value from temporary configuration storage.
// If value isn't found - returns empty string with error.
func (conf Configuration) GetTempValue(key string) (string, error) {
value, found := tempconfig[key]
if !found {
return "", errors.New("No such key in temporary configuration storage: " + key)
}
// If we have path with tilde in front (home directory) - replace
// tilde with actual home directory.
if value[0] == '~' {
usr, err := user.Current()
if err != nil {
c.Log.Fatalln("Failed to get current user data: " + err.Error())
}
value = strings.Replace(value, "~", usr.HomeDir, 1)
}
return value, nil
}
func (conf Configuration) Initialize() {
c.Log.Infoln("Initializing configuration storage...")
tempconfig = make(map[string]string)
flag_configpath := flagger.Flag{
Name: "config",
Description: "Path to configuration file.",
Type: "string",
DefaultValue: "~/.config/OpenSAPS/config.yaml",
}
c.Flagger.AddFlag(&flag_configpath)
}
// Initializes configuration root path for later usage.
func (conf Configuration) initializeConfigurationFilePath() {
c.Log.Debugln("Asking flagger about configuration root path supplied by user...")
configpath, err := c.Flagger.GetStringValue("config")
if err != nil {
c.Log.Fatalln("Something went wrong - Flagger doesn't know about \"-config\" parameter!")
}
c.Log.Infoln("Will use configuration file: '" + configpath + "'")
conf.SetTempValue("CONFIGURATION_FILE", configpath)
}
// Asking Flagger about flags, initialize internal variables.
// Should be called **after** Flagger.Parse().
func (conf Configuration) InitializeLater() {
c.Log.Infoln("Completing configuration initialization...")
conf.initializeConfigurationFilePath()
}
// Loads configuration from file.
func (conf Configuration) LoadConfigurationFromFile() {
configpath, err := conf.GetTempValue("CONFIGURATION_FILE")
if err != nil {
c.Log.Fatalln("Failed to get configuration file path from internal temporary configuration storage! OpenSAPS is BROKEN!")
}
c.Log.Infof("Loading configuration from '%s'...", configpath)
// Read file into memory.
config_bytes, err1 := ioutil.ReadFile(configpath)
if err1 != nil {
c.Log.Fatalf("Error occured while reading configuration file: %s", err1.Error())
}
config = &configstruct.ConfigStruct{}
// Parse YAML.
err2 := yaml.Unmarshal(config_bytes, config)
if err2 != nil {
c.Log.Fatalf("Failed to parse configuration file: %s", err2.Error())
}
c.Log.Debugln("Loaded configuration:", fmt.Sprintf("%+v", config))
}
// Sets value to key in temporary configuration storage.
// If key already present in map - value will be replaced.
func (conf Configuration) SetTempValue(key, value string) {
tempconfig[key] = value
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package config
import (
// local
"lab.pztrn.name/pztrn/opensaps/config/interface"
"lab.pztrn.name/pztrn/opensaps/config/struct"
"lab.pztrn.name/pztrn/opensaps/context"
)
var (
c *context.Context
// Temporary configuration.
tempconfig map[string]string
// Configuration from YAML file.
config *configstruct.ConfigStruct
)
func New(cc *context.Context) {
c = cc
conf := Configuration{}
c.RegisterConfigurationInterface(configurationinterface.ConfigurationInterface(conf))
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package configurationinterface
import (
// local
"lab.pztrn.name/pztrn/opensaps/config/struct"
)
type ConfigurationInterface interface {
GetConfig() *configstruct.ConfigStruct
GetTempValue(key string) (string, error)
Initialize()
InitializeLater()
LoadConfigurationFromFile()
SetTempValue(key, value string)
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package configstruct
// Config's root.
type ConfigStruct struct {
SlackHandler ConfigSlackHandler `yaml:"slackhandler"`
Webhooks map[string]ConfigWebhook `yaml:"webhooks"`
Matrix map[string]ConfigMatrix `yaml:"matrix"`
}
// Slack handler configuration.
type ConfigSlackHandler struct {
Listener ConfigSlackHandlerListener `yaml:"listener"`
}
type ConfigSlackHandlerListener struct {
Address string `yaml:"address"`
}
// Webhook configuration.
type ConfigWebhook struct {
Slack ConfigWebhookSlack `yaml:"slack"`
Remote ConfigWebhookRemote `yaml:"remote"`
}
type ConfigWebhookSlack struct {
Random1 string `yaml:"random1"`
Random2 string `yaml:"random2"`
LongRandom string `yaml:"longrandom"`
}
type ConfigWebhookRemote struct {
Pusher string `yaml:"pusher"`
PushTo string `yaml:"push_to"`
}
// Matrix pusher configuration.
type ConfigMatrix struct {
ApiRoot string `yaml:"api_root"`
User string `yaml:"user"`
Password string `yaml:"password"`
Room string `yaml:"room"`
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package context
import (
// stdlib
"os"
// local
"lab.pztrn.name/pztrn/opensaps/config/interface"
"lab.pztrn.name/pztrn/opensaps/pushers/interface"
"lab.pztrn.name/pztrn/opensaps/slack/apiserverinterface"
"lab.pztrn.name/pztrn/opensaps/slack/message"
// other
"lab.pztrn.name/golibs/flagger"
"lab.pztrn.name/golibs/mogrus"
)
type Context struct {
Config configurationinterface.ConfigurationInterface
Flagger *flagger.Flagger
Log *mogrus.LoggerHandler
Pushers map[string]pusherinterface.PusherInterface
SlackAPIServer slackapiserverinterface.SlackAPIServerInterface
}
func (c *Context) Initialize() {
c.Pushers = make(map[string]pusherinterface.PusherInterface)
l := mogrus.New()
l.Initialize()
c.Log = l.CreateLogger("opensaps")
c.Log.CreateOutput("stdout", os.Stdout, true)
c.Flagger = flagger.New(c.Log)
c.Flagger.Initialize()
}
// Registers configuration interface.
func (c *Context) RegisterConfigurationInterface(ci configurationinterface.ConfigurationInterface) {
c.Config = ci
c.Config.Initialize()
}
// Registers Pusher interface.
func (c *Context) RegisterPusherInterface(name string, iface pusherinterface.PusherInterface) {
c.Pushers[name] = iface
c.Pushers[name].Initialize()
}
// Registers Slack API HTTP server control structure.
// Russians will have pretty good luff on variable name.
func (c *Context) RegisterSlackAPIServerInterface(sasi slackapiserverinterface.SlackAPIServerInterface) {
c.SlackAPIServer = sasi
c.SlackAPIServer.Initialize()
}
func (c *Context) SendToPusher(protocol string, connection string, data slackmessage.SlackMessage) {
pusher, ok := c.Pushers[protocol]
if !ok {
c.Log.Errorf("Pusher not found (or initialized) for protocol '%s'!", protocol)
}
pusher.Push(connection, data)
}
// Shutdown everything.
func (c *Context) Shutdown() {
c.SlackAPIServer.Shutdown()
for _, pusher := range c.Pushers {
pusher.Shutdown()
}
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package context
func New() *Context {
c := &Context{}
return c
}

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slackhandler:
listener:
address: "127.0.0.1"
port: 39231
webhooks:
gitea_to_matrix:
slack:
random1: "12345678"
random2: "87654321"
longrandom: "123456789012345678901234"
remote:
push_to: "matrix_test"
data: "room_id_from_config"
matrix:
matrix_test:
api_root: "https://localhost:8448/_matrix/client/r0"
user: ""
password: ""

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package main
import (
// stdlib
"os"
"os/signal"
"syscall"
// local
"lab.pztrn.name/pztrn/opensaps/config"
"lab.pztrn.name/pztrn/opensaps/context"
"lab.pztrn.name/pztrn/opensaps/pushers/matrix"
"lab.pztrn.name/pztrn/opensaps/slack"
)
func main() {
c := context.New()
c.Initialize()
config.New(c)
c.Log.Infoln("Launching OpenSAPS...")
c.Flagger.Parse()
c.Config.InitializeLater()
c.Config.LoadConfigurationFromFile()
slack.New(c)
// Initialize pushers.
matrixpusher.New(c)
// CTRL+C handler.
signal_handler := make(chan os.Signal, 1)
shutdown_done := make(chan bool, 1)
signal.Notify(signal_handler, os.Interrupt, syscall.SIGTERM)
go func() {
<-signal_handler
c.Shutdown()
shutdown_done <- true
}()
<-shutdown_done
os.Exit(0)
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package pusherinterface
import (
// local
"lab.pztrn.name/pztrn/opensaps/slack/message"
)
type PusherInterface interface {
Initialize()
Push(connection string, data slackmessage.SlackMessage)
Shutdown()
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package matrixpusher
import (
// local
"lab.pztrn.name/pztrn/opensaps/context"
"lab.pztrn.name/pztrn/opensaps/pushers/interface"
)
var (
c *context.Context
connections map[string]*MatrixConnection
)
func New(cc *context.Context) {
c = cc
connections = make(map[string]*MatrixConnection)
mp := MatrixPusher{}
c.RegisterPusherInterface("matrix", pusherinterface.PusherInterface(mp))
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package matrixpusher
import (
// stdlib
"bytes"
crand "crypto/rand"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
// local
"lab.pztrn.name/pztrn/opensaps/slack/message"
)
// Constants for random transaction ID.
const (
letterBytes = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" // 36 possibilities
letterIdxBits = 6 // 6 bits to represent 64 possibilities / indexes
letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
)
type MatrixConnection struct {
// API root for connection.
api_root string
// Connection name.
conn_name string
// Our device ID.
device_id string
// Password for user.
password string
// Room ID.
room_id string
// Token we obtained after logging in.
token string
// Our username for logging in to server.
username string
}
func (mxc *MatrixConnection) doPostRequest(endpoint string, data string) ([]byte, error) {
c.Log.Debugln("Data to send:", data)
api_root := mxc.api_root + endpoint
if mxc.token != "" {
api_root += fmt.Sprintf("?access_token=%s", mxc.token)
}
c.Log.Debugln("Request URL:", api_root)
req, _ := http.NewRequest("POST", api_root, bytes.NewBuffer([]byte(data)))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
return nil, errors.New("Failed to perform POST request to Matrix as '" + mxc.username + "' (conn " + mxc.conn_name + "): " + err.Error())
}
defer resp.Body.Close()
body, _ := ioutil.ReadAll(resp.Body)
if resp.Status == "200 OK" {
// Return body.
return body, nil
} else {
return nil, errors.New("Status: " + resp.Status + ", body: " + string(body))
}
}
func (mxc *MatrixConnection) doPutRequest(endpoint string, data string) ([]byte, error) {
c.Log.Debugln("Data to send:", data)
api_root := mxc.api_root + endpoint
if mxc.token != "" {
api_root += fmt.Sprintf("?access_token=%s", mxc.token)
}
c.Log.Debugln("Request URL:", api_root)
req, _ := http.NewRequest("PUT", api_root, bytes.NewBuffer([]byte(data)))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
return nil, errors.New("Failed to perform PUT request to Matrix as '" + mxc.username + "' (conn " + mxc.conn_name + "): " + err.Error())
}
defer resp.Body.Close()
body, _ := ioutil.ReadAll(resp.Body)
if resp.Status == "200 OK" {
// Return body.
return body, nil
} else {
return nil, errors.New("Status: " + resp.Status + ", body: " + string(body))
}
}
func (mxc *MatrixConnection) generateTnxId() string {
// Random tnxid - 16 chars.
length := 16
result := make([]byte, length)
bufferSize := int(float64(length)*1.3)
// Making sure that we have only letters and numbers and resulted
// string will be exactly requested length.
for i, j, randomBytes := 0, 0, []byte{}; i < length; j++ {
if j%bufferSize == 0 {
randomBytes = mxc.generateTnxIdSecureBytes(bufferSize)
}
if idx := int(randomBytes[j%length] & letterIdxMask); idx < len(letterBytes) {
result[i] = letterBytes[idx]
i++
}
}
return string(result)
}
func (mxc *MatrixConnection) generateTnxIdSecureBytes(length int) []byte {
// Get random bytes.
var randomBytes = make([]byte, length)
_, err := crand.Read(randomBytes)
if err != nil {
c.Log.Fatalln("Unable to generate random bytes for transaction ID!")
}
return randomBytes
}
func (mxc *MatrixConnection) Initialize(conn_name string, api_root string, user string, password string, room_id string) {
mxc.conn_name = conn_name
mxc.api_root = api_root
mxc.username = user
mxc.password = password
mxc.room_id = room_id
mxc.token = ""
c.Log.Debugln("Trying to connect to", mxc.conn_name, "(" + api_root + ")")
loginStr := fmt.Sprintf(`{"type": "m.login.password", "user": "%s", "password": "%s"}`, mxc.username, mxc.password)
c.Log.Debugln("Login string:", loginStr)
reply, err := mxc.doPostRequest("/login", loginStr)
if err != nil {
c.Log.Fatalf("Failed to login to Matrix with user '%s' (conn %s): '%s'", mxc.username, mxc.conn_name, err.Error())
}
// Parse received JSON and get access token.
data := make(map[string]string)
err1 := json.Unmarshal(reply, &data)
if err1 != nil {
c.Log.Fatalf("Failed to parse received JSON from Matrix for user '%s' (conn %s): %s", mxc.username, mxc.conn_name, err1.Error())
}
mxc.token = data["access_token"]
mxc.device_id = data["device_id"]
c.Log.Debugf("Login successful for conn '%s', access token is '%s', our device_id is '%s'", mxc.conn_name, mxc.token, mxc.device_id)
// We should check if we're already in room and, if not, join it.
// We will do this by simply trying to join. We don't care about reply
// here.
_, err2 := mxc.doPostRequest("/rooms/" + mxc.room_id + "/join", "{}")
if err2 != nil {
c.Log.Fatalf("Failed to join room: %s", err2.Error())
}
// If we're here - everything is okay and we already in room. Send
// greeting message.
mxc.SendMessage("OpenSAPS is back in business for connection '" + mxc.conn_name + "'!")
}
// This function launches when new data was received thru Slack API.
// It will prepare a message which will be passed to mxc.SendMessage().
func (mxc *MatrixConnection) ProcessMessage(message slackmessage.SlackMessage) {
// Prepare message body.
message_body := message.Text
// ToDo: attachments handling.
// Send message.
mxc.SendMessage(message_body)
}
// This function sends already prepared message to room.
func (mxc *MatrixConnection) SendMessage(message string) {
c.Log.Debugf("Sending message to connection '%s': '%s'", mxc.conn_name, message)
// We should send notices as it is preferred behaviour for bots and
// appservices.
//msgStr := fmt.Sprintf(`{"msgtype": "m.text", "body": "%s", "format": "org.matrix.custom.html", "formatted_body": "%s"}`, message, message)
msgStr := fmt.Sprintf(`{"msgtype": "m.notice", "body": "%s"}`, message)
reply, err := mxc.doPutRequest("/rooms/" + mxc.room_id + "/send/m.room.message/" + mxc.generateTnxId(), msgStr)
if err != nil {
c.Log.Fatalf("Failed to send message to room '%s' (conn: '%s'): %s", mxc.room_id, mxc.conn_name, err.Error())
}
c.Log.Debugf("Message sent, reply: %s", string(reply))
}
func (mxc *MatrixConnection) Shutdown() {
c.Log.Infof("Shutting down connection '%s'...", mxc.conn_name)
_, err := mxc.doPostRequest("/logout", "{}")
if err != nil {
c.Log.Errorf("Error occured while trying to log out from Matrix (conn %s): %s", mxc.conn_name, err.Error())
}
mxc.token = ""
c.Log.Infof("Connection '%s' successfully shutted down", mxc.conn_name)
}

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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package matrixpusher
import (
// local
"lab.pztrn.name/pztrn/opensaps/slack/message"
)
type MatrixPusher struct {}
func (mp MatrixPusher) Initialize() {
c.Log.Infoln("Initializing Matrix protocol pusher...")
// Get configuration for pushers and initialize every connection.
cfg := c.Config.GetConfig()
for name, config := range cfg.Matrix {
c.Log.Infof("Initializing connection: '%s'", name)
conn := MatrixConnection{}
connections[name] = &conn
go conn.Initialize(name, config.ApiRoot, config.User, config.Password, config.Room)
}
}
func (mp MatrixPusher) Push(connection string, data slackmessage.SlackMessage) {
conn, found := connections[connection]
if !found {
c.Log.Errorf("Connection not found: '%s'!", connection)
return
}
c.Log.Debugf("Pushing data to '%s'", connection)
conn.ProcessMessage(data)
}
func (mp MatrixPusher) Shutdown() {
c.Log.Infoln("Shutting down Matrix pusher...")
for _, conn := range connections {
conn.Shutdown()
}
}

23
slack/apiserverinterface/slackapiserverinterface.go Normal file
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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package slackapiserverinterface
type SlackAPIServerInterface interface {
Initialize()
Shutdown()
}

39
slack/exported.go Normal file
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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package slack
import (
// stdlib
"net/http"
// local
"lab.pztrn.name/pztrn/opensaps/context"
"lab.pztrn.name/pztrn/opensaps/slack/apiserverinterface"
)
var (
c *context.Context
// HTTP server.
httpsrv *http.Server
)
func New(cc *context.Context) {
c = cc
sh := SlackAPIServer{}
c.RegisterSlackAPIServerInterface(slackapiserverinterface.SlackAPIServerInterface(sh))
}

35
slack/message/slackmessage.go Normal file
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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package slackmessage
type SlackMessage struct {
Channel string `json:"channel"`
Text string `json:"text"`
Username string `json:"username"`
IconURL string `json:"icon_url"`
UnfurlLinks int `json:"unfurl_links"`
LinkNames int `json:"link_names"`
Attachments []SlackAttachments `json:"attachments"`
}
type SlackAttachments struct {
Fallback string `json:"fallback"`
Color string `json:"color"`
Title string `json:"title"`
Text string `json:"text"`
}

73
slack/slackapiserver.go Normal file
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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package slack
// This is a handler for Slack Webhooks API requests.
// Slack Webhooks API generates next URL:
// https://hooks.slack.com/services/TRANDOM1/BRANDOM2/randomlongstring
//
// Where:
// * RANDOM1 and RANDOM2 - random 8-char thing.
// * randomlongstring - random 24-char thing.
//
// These strings should be defined in configuration, so we can create proper
// handler for it.
import (
// stdlib
"fmt"
"net/http"
"time"
)
type SlackAPIServer struct {}
func (sh SlackAPIServer) Initialize() {
c.Log.Infoln("Initializing Slack API handler...")
// Start HTTP server.
// As OpenSAPS designed to be behind some proxy (nginx, Caddy, etc.)
// we will listen only to plain HTTP.
// Note to those who wants HTTPS - proxify with nginx, Caddy, etc!
// Don't send pull requests, patches, don't create issues! :)
cfg := c.Config.GetConfig()
httpsrv = &http.Server{
Addr: cfg.SlackHandler.Listener.Address,
// This handler will figure out from where request has come and will
// send it to approriate pusher. Pusher should also determine to which
// connection data should be sent.
Handler: SlackHandler{},
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
MaxHeaderBytes: 1 << 20,
}
go httpsrv.ListenAndServe()
c.Log.Infof("Slack Webhooks API server starting to listen on %s", cfg.SlackHandler.Listener.Address)
}
func (sh SlackAPIServer) handleRequest(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hello, %q", r.URL.Path)
}
func (sh SlackAPIServer) Shutdown() {
c.Log.Infoln("Shutting down Slack API handler...")
httpsrv.Shutdown(nil)
c.Log.Infoln("Slack API HTTP server shutted down")
}

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slack/slackhandler.go Normal file
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// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package slack
import (
// stdlib
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"strings"
// local
"lab.pztrn.name/pztrn/opensaps/slack/message"
)
type SlackHandler struct {}
func (sh SlackHandler) ServeHTTP(respwriter http.ResponseWriter, req *http.Request) {
c.Log.Debugf("Received '%s' (empty = GET) request from %s, URL: '%s'", req.Method, req.Host, req.URL.Path)
// We should catch only POST requests. Otherwise return HTTP 404.
if req.Method != "POST" {
c.Log.Debugln("Not a POST request, returning HTTP 404")
respwriter.WriteHeader(404)
fmt.Fprintf(respwriter, "NOT FOUND")
return
}
body, _ := ioutil.ReadAll(req.Body)
req.Body.Close()
c.Log.Debugf("Received body: %s", string(body))
// Try to figure out where we should push received data.
url_splitted := strings.Split(req.URL.Path, "/")
fmt.Println(url_splitted)
cfg := c.Config.GetConfig()
var sent_to_pusher bool = false
for name, config := range cfg.Webhooks {
if strings.Contains(url_splitted[2], config.Slack.Random1) && strings.Contains(url_splitted[3], config.Slack.Random2) && strings.Contains(url_splitted[4], config.Slack.LongRandom) {
c.Log.Debugf("Passed data belongs to '%s' and should go to '%s' pusher, protocol '%s'", name, config.Remote.PushTo, config.Remote.Pusher)
// Parse message into SlackMessage structure.
slackmsg := slackmessage.SlackMessage{}
err := json.Unmarshal(body, &slackmsg)
if err != nil {
c.Log.Error("Failed to decode JSON into SlackMessage struct: '%s'", err.Error())
return
}
c.SendToPusher(config.Remote.Pusher, config.Remote.PushTo, slackmsg)
sent_to_pusher = true
}
}
if !sent_to_pusher {
c.Log.Debug("Don't know where to push data. Ignoring with HTTP 404")
respwriter.WriteHeader(404)
fmt.Fprintf(respwriter, "NOT FOUND")
}
}