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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://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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The licenses for most software and other practical works are designed
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You may not impose any further restrictions on the exercise of the
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or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
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author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
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 <https://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
<https://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
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# DeletedBot Backend
[![Go Report Card](https://goreportcard.com/badge/codeberg.org/deletedbot/backend)](https://goreportcard.com/report/codeberg.org/deletedbot/backend)
This repo contains the code for DeletedBot's backend, including:
- The API protocol to be used by the frontend
- The endpoint for Telegram's webhook
It uses Go Gin as web server and Redis as database.
This project is released under GNU GPL v3.0, read the LICENSE file to know more. Contributions are always welcome!
## How to self-host
Notice: The backend, by itself, is pretty useless. So, once you're done self hosting the backend, make sure to check out how you can deploy the frontend [here](https://codeberg.org/deletedbot/frontend).
### The zoomers' way
[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy)
### The good'ol way
1. Download a pre-built binary from the release page or clone the repo and run `go build -o deletedbot-backend .` in the same directory
2. Get yourself a Redis server. If you're on a VPS or dedicated server, check out [this](https://redis.io/download) link; if you're on Heroku or similar services, take a look [here](https://redislabs.com/try-free/) to get a free managed Redis database, or get an add-on for the specified service.
3. Set the following environment variables:
| Key | Example | Explaination |
| -------------- | ------------------------ | ------------------------------------------------------------ |
| FRONTEND_HOST | deleted.bot.nu | The host where your frontend is located. It will be sent in all /start messages. |
| BACKEND_HOST | apidel.massivebox.eu.org | The host of your backend. All DeletedBots hosted on your instance will have their webhook set to this host. Make sure you have HTTPS! |
| PORT | 80 | The port the web server will listen on. |
| REDIS_ADDR | localhost:6379 | The hostname of your Redis database |
| REDIS_PASSWORD | ExtremelySafePassword | The password of your Redis database. Leave empty if no password is set. |
| ADMIN_USERNAME | admin | The username required to log into the admin console. |
| ADMIN_PASSWORD | ExtremelySafePassword | The password required to log into the admin console. |
4. Run your instance: if you're on a server, use `sudo nohup ./deletedbot-backend`, if you're using anything else use your common deploying technique.
5. That's it.

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package main
import (
"github.com/gin-gonic/gin"
tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
)
type getBotsReturn struct {
Ok bool `json:"ok"`
ChangedKey int `json:"changed_key"`
ChangedWebhook int `json:"changed_webhook"`
Working int `json:"working"`
Total int `json:"total"`
Result []getBot `json"result"`
}
type getBot struct {
Token string `json:"token"`
Username string `json:"username"`
Text string `json:"text"`
IsChangedKey bool `json:"is_changed_key"`
IsWorking bool `json:"is_working"`
IsChangedWebhook bool `json:"is_changed_webhook"`
}
func (ses session) getBots(c *gin.Context) {
keys, err := ses.Keys("*").Result()
if err != nil {
c.JSON(500, gin.H{
"ok": "false",
"description": "Internal server error.",
})
return
}
c.JSON(200, ses.populateGetBotsReturn(keys))
}
func (ses session) populateGetBotsReturn(keys []string) getBotsReturn {
var ret getBotsReturn
ret.Ok = true
ret.Total = len(keys)
for _, key := range keys {
ck := len(ret.Result)
text, _ := ses.Get(key).Result()
ret.Result = append(ret.Result, getBot{
Token: key,
Text: text,
})
bot, err := tgbotapi.NewBotAPI(key)
if err != nil {
ret.Result[ck].IsChangedWebhook = true
ret.Result[ck].IsChangedKey = true
ret.ChangedWebhook++
ret.ChangedKey++
continue
}
ret.Result[ck].Username = bot.Self.UserName
webhookInfo, _ := bot.GetWebhookInfo()
if webhookInfo.URL != "https://"+ses.BackendHost+"/telegram/"+key {
ret.Result[ck].IsChangedWebhook = true
ret.ChangedWebhook++
continue
}
ret.Working++
ret.Result[ck].IsWorking = true
}
return ret
}
func (ses session) unsetBot(c *gin.Context) {
token := c.PostForm("token")
doError := func(err error) {
c.JSON(503, gin.H{
"ok": true,
"message": "Internal error",
"details": err.Error(),
})
}
err := ses.unsetWebhookForBot(token)
if err != nil {
doError(err)
return
}
err = ses.Del(token).Err()
if err != nil {
doError(err)
return
}
c.JSON(200, gin.H{
"ok": true,
"message": "Webhook removed",
"details": "The webhook has been removed",
})
}

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{
"name": "DeletedBot Backend",
"description": "The backend of DeletedBot.",
"repository": "https://github.com/deleted-bot/backend",
"env": {
"BACKEND_HOST": {
"description": "Replace <APPNAME-HERE> with your app's name.",
"value": "<APPNAME-HERE>.herokuapp.com"
},
"FRONTEND_HOST": {
"description": "URL where the frontend is hosted. This will be sent in all /start messages.",
},
"REDIS_ADDR": {
"description": "Redis address"
},
"REDIS_PASSWORD": {
"description": "Redis password"
},
"ADMIN_USERNAME": {
"description": "Admin username"
},
"ADMIN_PASSWORD": {
"description": "Admin password"
},
"GIN_MODE": {
"description": "Set to release for production, anything else for testing",
"value": "release"
}
}
}

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module deletedbot
go 1.15
require (
github.com/fzipp/gocyclo v0.3.1 // indirect
github.com/gin-contrib/cors v1.3.1
github.com/gin-gonic/gin v1.6.3
github.com/go-redis/redis v6.15.9+incompatible
github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.0.0-rc1
)

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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/fzipp/gocyclo v0.3.1 h1:A9UeX3HJSXTBzvHzhqoYVuE0eAhe+aM8XBCCwsPMZOc=
github.com/fzipp/gocyclo v0.3.1/go.mod h1:DJHO6AUmbdqj2ET4Z9iArSuwWgYDRryYt2wASxc7x3E=
github.com/gin-contrib/cors v1.3.1 h1:doAsuITavI4IOcd0Y19U4B+O0dNWihRyX//nn4sEmgA=
github.com/gin-contrib/cors v1.3.1/go.mod h1:jjEJ4268OPZUcU7k9Pm653S7lXUGcqMADzFA61xsmDk=
github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
github.com/gin-gonic/gin v1.5.0/go.mod h1:Nd6IXA8m5kNZdNEHMBd93KT+mdY3+bewLgRvmCsR2Do=
github.com/gin-gonic/gin v1.6.3 h1:ahKqKTFpO5KTPHxWZjEdPScmYaGtLo8Y4DMHoEsnp14=
github.com/gin-gonic/gin v1.6.3/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
github.com/go-playground/locales v0.12.1/go.mod h1:IUMDtCfWo/w/mtMfIE/IG2K+Ey3ygWanZIBtBW0W2TM=
github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
github.com/go-playground/universal-translator v0.16.0/go.mod h1:1AnU7NaIRDWWzGEKwgtJRd2xk99HeFyHw3yid4rvQIY=
github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD876Lmtgy7VtROAbHHXk8no=
github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
github.com/go-playground/validator/v10 v10.2.0 h1:KgJ0snyC2R9VXYN2rneOtQcw5aHQB1Vv0sFl1UcHBOY=
github.com/go-playground/validator/v10 v10.2.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GOhaH6EGOAJShg8Id5JGkI=
github.com/go-redis/redis v6.15.9+incompatible h1:K0pv1D7EQUjfyoMql+r/jZqCLizCGKFlFgcHWWmHQjg=
github.com/go-redis/redis v6.15.9+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=
github.com/go-telegram-bot-api/telegram-bot-api v1.0.0 h1:HXVtsZ+yINQeyyhPFAUU4yKmeN+iFhJ87jXZOC016gs=
github.com/go-telegram-bot-api/telegram-bot-api v4.6.4+incompatible h1:2cauKuaELYAEARXRkq2LrJ0yDDv1rW7+wrTEdVL3uaU=
github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.0.0-rc1 h1:Mr8jIV7wDfLw5Fw6BPupm0aduTFdLjhI3wFuIIZKvO4=
github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.0.0-rc1/go.mod h1:2s/IzRcxCszyNh760IjJiqoYHTnifk8ZeNYL33z8Pww=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/leodido/go-urn v1.1.0/go.mod h1:+cyI34gQWZcE1eQU7NVgKkkzdXDQHr1dBMtdAPozLkw=
github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/technoweenie/multipartstreamer v1.0.1 h1:XRztA5MXiR1TIRHxH2uNxXxaIkKQDeX7m2XsSOlQEnM=
github.com/technoweenie/multipartstreamer v1.0.1/go.mod h1:jNVxdtShOxzAsukZwTSw6MDx5eUJoiEBsSvzDU9uzog=
github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo=
github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs=
github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

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package main
import (
"github.com/gin-contrib/cors"
"github.com/gin-gonic/gin"
"github.com/go-redis/redis"
"log"
"os"
)
type session struct {
*redis.Client
FrontendHost, BackendHost string
}
func main() {
//localTest()
client := redis.NewClient(&redis.Options{
Addr: os.Getenv("REDIS_ADDR"),
Password: os.Getenv("REDIS_PASSWORD"),
DB: 0,
})
pong, err := client.Ping().Result()
log.Println("Got pong:", pong)
if err != nil {
log.Fatal("Couldn't connect to Redis: ", err.Error())
}
ses := session{Client: client, FrontendHost: os.Getenv("FRONTEND_HOST"), BackendHost: os.Getenv("BACKEND_HOST")}
r := gin.Default()
r.Use(cors.Default())
r.POST("/setbot", ses.setBot)
r.POST("/telegram/:token", ses.telegram)
admin := r.Group("/admin", gin.BasicAuth(gin.Accounts{os.Getenv("ADMIN_USERNAME"): os.Getenv("ADMIN_PASSWORD")}))
admin.POST("/getbots", ses.getBots)
admin.POST("/unsetbot", ses.unsetBot)
r.Run("0.0.0.0:" + os.Getenv("PORT"))
}

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package main
import (
"github.com/gin-gonic/gin"
"github.com/go-telegram-bot-api/telegram-bot-api/v5"
"encoding/json"
"io/ioutil"
)
func (ses session) setWebhookForBot(token string) (string, error) {
bot, err := tgbotapi.NewBotAPI(token)
if err != nil { return "", err }
_, err = bot.Request(tgbotapi.NewWebhook("https://" + ses.BackendHost + "/telegram/" + token))
if err != nil { return "", err }
return bot.Self.UserName, nil
}
func (ses session) unsetWebhookForBot(token string) error {
bot, err := tgbotapi.NewBotAPI(token)
if err != nil { return err }
_, err = bot.Request(tgbotapi.RemoveWebhookConfig{})
if err != nil { return err }
return nil
}
func (ses session) telegram(c *gin.Context) {
token := c.Param("token")
bot, err1 := tgbotapi.NewBotAPI(token)
body, err2 := ioutil.ReadAll(c.Request.Body)
if err1 != nil || err2 != nil {
return
}
var update tgbotapi.Update
json.Unmarshal(body, &update)
if update.Message != nil {
if update.Message.Chat.ID > 0 {
val, err := ses.Get(token).Result()
if err != nil {
return
}
msg := tgbotapi.NewMessage(update.Message.Chat.ID, val)
msg.ParseMode = "HTML"
bot.Send(msg)
bot.Send(tgbotapi.NewMessage(update.Message.Chat.ID, "Made with "+ses.FrontendHost))
}
}
}

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package main
import (
"github.com/gin-gonic/gin"
)
func (ses session) setBot(c *gin.Context) {
token := c.PostForm("token")
text := c.PostForm("text")
if token == "" || text == "" || c.PostForm("tec") != "yes" {
c.JSON(403, gin.H{
"ok": false,
"message": "Missing fields",
"details": "Please fill all the form data.",
})
return
}
botUsername, err := ses.setWebhookForBot(token)
if err != nil {
c.JSON(300, gin.H{
"ok": false,
"message": "Bad token",
"details": err.Error(),
})
return
}
err = ses.Set(token, text, 0).Err()
if err != nil {
c.JSON(503, gin.H{
"ok": false,
"message": "Internal server error, please try again",
"details": err.Error(),
})
return
}
c.JSON(200, gin.H{
"ok": true,
"message": "Created successfully!",
"details": "Your bot should be working now. You can check it out at <a href='https://t.me/" + botUsername + "'>@" + botUsername + "</a>",
})
}