telegram-bot-bash/doc/6_reference.md
2020-09-27 17:36:01 +02:00

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Bashbot function reference

Send, forward, delete messages

send_action

send_action shows users what your bot is currently doing.

usage: send_action "${CHAT[ID]}" "action"

"action": typing, upload_photo, record_video, upload_video, record_audio, upload_audio, upload_document, find_location.

alias: _action "action"

example:

send_action "${CHAT[ID]}" "typing"
send_action "${CHAT[ID]}" "record_audio"
send_normal_message

send_normal_message sends text only messages to the given chat.

usage: send_normal_message "${CHAT[ID]}" "message"

alias: _normal_message "message"

example:

send_normal_message "${CHAT[ID]}" "this is a text message"
send_markdown_message

send_markdown_message sends markdown style messages to the given chat. Telegram supports a reduced set of Markdown only

usage: send_markdown_message "${CHAT[ID]}" "markdown message"

alias: _markdown "message"

example:

send_markdown_message "${CHAT[ID]}" "this is a markdown  message, next word is *bold*"
send_markdown_message "${CHAT[ID]}" "*bold* _italic_ [text](link)"
send_html_message

send_html_message sends HTML style messages to the given chat. Telegram supports a reduced set of HTML only

usage: send_html_message "${CHAT[ID]}" "html message"

alias: _html_message "message"

example:

send_normal_message "${CHAT[ID]}" "this is a markdown  message, next word is <b>bold</b>"
send_normal_message "${CHAT[ID]}" "<b>bold</b> <i>italic><i> <em>italic>/em> <a href="link">Text</a>"
forward_message

forward_mesage forwards a message to the given chat.

usage: forward_message "chat_to" "chat_from" "${MESSAGE[ID]}"

old call: forward "${CHAT[ID]}" "$FROMCHAT" "${MESSAGE[ID]}"

alias: _forward "$FROMCHAT" "${MESSAGE[ID]}"

See also Text formatting options


delete_message

A bot can only delete messages if he is admin of a Chat, if not he can delete his own messages only.

usage: delete_message "${CHAT[ID]}" "${MESSAGE[ID]}"

See also deleteMessage limitations


send_message

send_message sends any type of message to the given chat. Type of output is steered by keywords within the message.

The main use case for send_message is to process the output of interactive chats and background jobs. For regular Bot commands I recommend using of the dedicated send_xxx_message() functions from above.

usage: send_message "${CHAT[ID]}" "message"

example: - see Usage and Advanced Usage


File, Album, Location, Venue, Keyboard

send_file

send_file allows you to send different type's of files, e.g. photos, stickers, audio, media, etc. see more

  • file names must not contain ".."
  • file names must not start with "."
  • file names not starting with "/" are relative to $TMPDIR, e.g. ./data-bot-bash
  • absolute filenames must match $FILE_REGEX
  • FILE_REGEX is a regular expression, not shell globbing, test you rexexes: http://www.softlion.com/webTools/RegExpTest/

usage: send_file "${CHAT[ID]}" "file" "caption"

example:

send_file "${CHAT[ID]}" "/home/user/doge.jpg" "Lool"
send_file "${CHAT[ID]}" "https://www.domain,com/something.gif" "Something"
send_album

usage: send_album "${CHAT[ID]}" "URL1" "URL2" ... "URLn"

example:

send_album "$(getConfigKey "botadmin")" "http://www.rrr.de/slider/main-image1.jpg" "http://www.rrr.de/slider/main-image5.jpg"
send_location

usage: send_location "${CHAT[ID]}" "Latitude" "Longitude"

send_venue

usage: send_venue "${CHAT[ID]}" "Latitude" "Longitude" "Title" "Address" "foursquare id (optional)"


send_keyboard

Note: Since version 0.6 send_keyboard was changed to use native "JSON Array" notation as used from Telegram. Detection and emulation for old format will be removed after 1.0 release!

Example Keyboard Array definitions:

  • yes no in two rows:
    • OLD format: 'yes' 'no' (two strings)
    • NEW format: '[ "yes" ] , [ "no" ]' (two arrays with a string)
  • new layouts made easy with NEW format:
    • Yes No in one row: '[ "yes" , "no" ]'
    • Yes No plus Maybe in 2.row: '[ "yes" , "no" ] , [ "maybe" ]'
    • number pad style keyboard: '[ "1" , "2" , "3" ] , [ "4" , "5" , "6" ] , [ "7" , "8" , "9" ] , [ "0" ]'

usage: send_keyboard "chat-id" "message" "keyboard"

alias: _keyboard "message" "keyboard"

example:

send_keyboard "${CHAT[ID]}" "Say yes or no" '[ "yes" , "no" ]' # in one row
send_keyboard "${CHAT[ID]}" "Say yes or no" '[ "yes" ] , [ "no" ]' # 2 rows
send_keyboard "${CHAT[ID]}" "Enter digit" '[ "1" , "2" , "3" ] , [ "4" , "5" , "6" ] , [ "7" , "8" , "9" ] , [ "0" ]'

_keyboard_yesno  # see aliases
_keyboard_numpad

remove_keyboard

usage: remove_keybord "$CHAT[ID]" "message"

alias: _del_keyboard "message"

See also: Keyboard Markup


send_button

usage: send_button "chat-id" "message" "text" "URL"

alias: _button "text" "URL"

example:

send_button "${CHAT[ID]}" "MAKE MONEY FAST!!!" "Visit my Shop" "https://dealz.rrr.de"
send_inline_keyboard

Even its called keyboard, this function is different from send_keyboard. The main difference is that it's only possible to specify URL buttons, no Text Buttons and the Buttons must be an Array of Buttons as specified for Telegram InlineMarkup.

The inline buttons must be specified as a JSON string in the following format:

[ {"text":"text1", "url":"url1"}, ... {"text":"textN", "url":"urlN"} ]

Each button consists of a pair of text and URL values, sourrounded by '{ }', multiple buttons are separated by ',' and everything is wrapped in '[ ]'.

usage: send_inline_keyboard "chat-id" "message" "[ {"text":"text", "url":"url"} ...]"

alias: _inline_keyboard "[{"text":"text", "url":"url"} ...]"

example:

send_inline_keyboard "${CHAT[ID]}" "MAKE MONEY FAST!!!" '[{"text":"Visit my Shop", url"":"https://dealz.rrr.de"}]'
send_inline_keyboard "${CHAT[ID]}" "" '[{"text":"button 1", url"":"url 1"}, {"text":"button 2", url"":"url 2"} ]'
send_inline_keyboard "${CHAT[ID]}" "" '[{"text":"b 1", url"":"u 1"}, {"text":"b 2", url"":"u 2"}, {"text":"b 2", url"":"u 2"} ]'

See also Inline keyboard markup


User Access Control

The following basic user control functions are part of the Telegram API. More advanced API functions are currently not implemented in bashbot.

kick_chat_member

If your Bot is a chat admin he can kick and ban a user.

usage: kick_chat_member "${CHAT[ID]}" "${USER[ID]}"

alias: _kick_user "${USER[ID]}"

unban_chat_member

If your Bot is a chat admin can unban a kicked user.

usage: unban_chat_member "${CHAT[ID]}" "${USER[ID]}"

alias: _unban "${USER[ID]}"

leave_chat

Your Bot will leave the chat.

usage: leave_chat "${CHAT[ID]}"

alias: _leave

if _is_admin ; then 
 send_markdown_message "${CHAT[ID]}" "*LEAVING CHAT...*"
 leave_chat "${CHAT[ID]}"
fi

'See also kick Chat Member*


The following functions are bashbot only and not part of the Telegram API.

user_is_botadmin

Return true (0) if user is admin of bot, user id if botadmin is read from file './botadmin'.

usage: user_is_botadmin "${USER[ID]}"

alias: _is_botadmin

example:

 _is_botadmin && send_markdown_message "${CHAT[ID]}" "You are *BOTADMIN*."
user_is_creator

Return true (0) if user is creator of given chat or chat is a private chat.

usage: user_is_creator "${CHAT[ID]}" "${USER[ID]}"

alias: _is_creator

user_is_admin

Return true (0) if user is admin or creator of given chat.

usage: user_is_admin "${CHAT[ID]}" "${USER[ID]}"

alias: _is_admin

example:

if _is_admin ; then 
  send_markdown_message "${CHAT[ID]}" "*LEAVING CHAT...*"
  leave_chat "${CHAT[ID]}"
fi

See also Chat Member

user_is_allowed

Bashbot supports User Access Control, see Advanced Usage

usage: user_is_allowed "${USER[ID]}" "what" "${CHAT[ID]}"

example:

if ! user_is_allowed "${USER[ID]}" "start" "${CHAT[ID]}" ; then
  send_normal_message "${CHAT[ID]}" "You are not allowed to start Bot."
fi

Inline Queries - answer direct queries to bot

Inline Queries allows users to interact with your bot directly without sending extra commands. As an answer to an inline query you can send back one or more results to the Telegram client. The Telegram client will then show the results to the user and let him select one.

answer_inline_query

answer_inline_query is provided for backward compatibility with older versions of bashbot. It send back only one response to an inline query.

usage: answer_inline_query "$i{QUERY[ID]}" "type" "type arg 1" ... "type arg n"

example: - see Advanced Usage

answer_inline_multi

anwser_inline_multi allows you to send back a list of responses. Responses must be separated by ','.

usage: answer_inline_multi "${iQUERY[ID]}" "res, res, ... res"

example:

# note the starting " and ending " !!
answer_inline_multi "${iQUERY[ID]}" "
    $(inline_query_compose "1" "photo" "https://avatars0.githubusercontent.com/u/13046303") ,
    ...
    $(inline_query_compose "n" "photo" "https://avatars1.githubusercontent.com/u/4593242")
    "
inline_query_compose

inline_query_compose composes one response element to to send back.

usage: inline_query_compose ID type args ....

	ID = unique ID for this response, 1-64 byte long
	type = type of answer, e.g. article, photo, video, location ...
	args = mandatory arguments in the order they are described in telegram documentation

Currently the following types and arguments are implemented (optional arguments in parenthesis)

	"article"|"message"	title message (parse_mode description)

	"photo"			photo_URL (thumb_URL title description caption parse_mode keyboard)
	"gif"			photo_URL (thumb_URL title caption parse_mode keyboard)
	"mpeg4_gif"		mpeg_URL (thumb_URL title caption  parse_mode keyboard)
	"video"			video_URL mime_type thumb_URL title (caption parse_mode keyboard)
	"audio"			audio_URL title (caption parse_mode keyboard)
	"voice"			voice_URL title (caption parse_mode keyboard)
	"document"		title document_URL mime_type (caption description parse_mode)

	"location"		latitude longitude title
	"venue"			latitude longitude title (address foursquare)
	"contact"		phone first (last thumb)

	"cached_photo"		file (title description caption parse_mode keyboard)
	"cached_gif"		file (title caption parse_mode keyboard)
	"cached_mpeg4_gif"	file (title caption parse_mode keyboard)
	"cached_sticker"	file (keyboard)
	"cached_document"	title file (description caption description parse_mode keyboard)
	"cached_video"		file title (description caption description parse_mode keyboard)
	"cached_voice"		file title (caption parse_mode keyboard)
	"cached_audio"		file title (caption parse_mode keyboard)

see InlineQueryResult for more information about response types and their arguments.


Background and Interactive jobs

Background functions and interactive jobs extends the bot functionality to not only react to user input. You can start scripts for interactive chats and send messages based on time or other external events.

start_proc

startproc starts a script, the output of the script is sent to the user or chat, user input will be sent back to the script. see Advanced Usage

usage: start_proc "${CHAT[ID]}" "script"

alias: startproc "script"

example:

startproc 'examples/calc.sh'
check_proc

Return true (0) if an interactive script is running in the chat.

usage: check_prog "${CHAT[ID]}"

alias: checkprog

example:

if ! check_proc "${CHAT[ID]}" ; then
  startproc "examples/calc.sh"
else
   send_normal_message "${CHAT[ID]}" "Calc already running ..."
fi
kill_proc

Kill the interactive script running in the chat

usage: kill_proc "${CHAT[ID]}"

alias: killproc

example:

if check_proc "${CHAT[ID]}" ; then
  killproc && send_message "${CHAT[ID]}" "Command canceled."
else
  send_message "${CHAT[ID]}" "Command is not running."
fi

start_back

Starts a script as a background job and attaches a job name to it. All output from a background job is sent to the associated chat.

In contrast to interactive chats, background jobs do not receive user input and can run forever. In addition you can suspend and restart running jobs, e.g. after reboot.

usage: start_back "${CHAT[ID]}" "script" "jobname"

alias: background "script" "jobname"

example:

background "examples/notify.sh" "notify"
check_back

Return true (0) if an background job is active in the given chat.

usage: check_back "${CHAT[ID]}" "jobname"

alias: checkback "jobname"

example:

if ! checkback "notify" ; then
  send_normal_message "${CHAT[ID]}" "Start notify"
  background "examples/notify.sh" "notify"
else
 send_normal_message "${CHAT[ID]}" "Process notify already running."
fi
kill_back

usage: kill_back "${CHAT[ID]}" "jobname"

alias: killback "jobname"

example:

checkback "notify"
if [ "$res" -eq 0 ] ; then
  send_normal_message "${CHAT[ID]}" "Kill notify"
  killback "notify"
else
  send_normal_message "${CHAT[ID]}" "Process notify not run."
fi

send_interactive

Form version 0.80 on forward_message is used to forward messages to interactive job. It replaces the old 'inproc' commands used for TMUX. Usually a message is automatically forwarded in 'commands.sh', but you can forward messages while processing also or send your own messages.

usage: send_interactive "${CHAT[ID]}" "message"

replaces: incproc


jsshDB

Since output generated by JSON.sh is so handy to use in bash, we use the format for a simple keys/value file store. The file extensions is '.jssh' and for security reasons location of jssh files is restricted to BASHBOT_ETC and BASHBOT_DATA..

fast and slow operations

jsshDB files are simple text files and if you append a new Key/value pairs to the end of the file it overwrites an existing key/value pair. We use this behavior for "fast" file operations.

"fast functions" add a new key/value pair to the end of the file without deleting an existing one, this is fast but over (long) time the file grows infinity.

"slow functions" in contrast modify the key/value pairs in place and write the whole file back, this is slower but clean up the file. All previously added key/value pairs are replaced and only the last one is written back to the file.

fast functions:

   jssh_insertKeyDB , jssh_addKeyDB , jssh_countKeyDB

slow functions:

   jssh_writeDB, jssh_updateDB , jssh_deleteKeyDB, jssh_clearDB

File naming and locking

A jssh fileDB consists of two files which must reside inside BASHBOT_ETC or BASHBOT_DATA.

  • filename.jssh is a text file containing the key/value data in json.sh format.
  • filename.jssh.flock is used for read/write locking with flock

Path names containing .. or not located in BASHBOT_ETC or BASHBOT_DATA are refused by jsshDB functions with an error.

Since version 0.94 jsshDB functions support file locking with flock. Write/update operations are serialised with flock to wait until previous operations are finished, see "man flock" for information. To avoid deadlocks we use a timeout of 10s for write and 5s for read operations.

Every jssh_*DB function exist as jssj_*DB_async also. In case flock is not availibe or you don't want locking, jssh_*DB_async functions without file locking will be used.

Example: for allowed file names:

# bashbot is installed in /usr/local/telegram-bot-bash, BASHBOT_ETC is not set.
"myfile" -> /usr/local/telegram-bot-bash/myfile.jssh
"addons/myfile" -> /usr/local/telegram-bot-bash/addons/myfile.jssh
"${DATADIR}/myfile" -> /usr/local/telegram-bot-bash/data-bot-bash/myfile.jssh
"/home/someuser/myfile" -> function returns false, nothing done.
jssh_newDB

Creates new empty jsshDB file if not exist.

usage: jssh_newDB "filename"

usage: jssh_newDB_async "filename"

jssh_clearDB

Delete all contents of jsshDB file.

usage: jssh_clearDB "filename"

usage: jssh_clearDB_async "filename"

jssh_checkDB

Check if DB name respects the rules mentioned above and print to STDOUT the real/final path to DB file. Used internally by all jssh DB functions, but can also used to get the real filename for a jssh DB.

An error is returned and nothing is printed if the given filename is not valid

usage: jssh_checkDB "filename"

usage: jssh_checkDB_async "filename"

if file=$(jssh_checkDB somename); then
	echo "Final filename is ${file}"
else
	echo "Something wrong with somename"
fi

# somename = data-bot-bash/somevalues
Final filename is data-bot-bash/somevalues.jssh

# somename = /home/someuser/myfile
Something wrong with /home/someuser/myfile

# somename = data-bot-bash/../../../somevalues
Something wrong with data-bot-bash/../../../somevalues
jssh_writeDB

Write content of an ARRAY into jsshDB file. ARRAY name must be declared with "declare -A ARRAY" before calling writeDB. "DB" file MUST exist or nothing is written.

Note: Existing content is overwritten.

usage: jssh_writeDB "ARRAY" "filename"

usage: jssh_writeDB_async "ARRAY" "filename"

example:

# Prepare array to store values
declare -A  WRITEVALUES

WRITEVALUES["value1"]="example"
WRITEVALUES["value2"]="a value"
WRITEVALUES["whynot","subindex1"]="whynot A"
WRITEVALUES["whynot","subindex2"]="whynot B"
WRITEVALUES["whynot","subindex2","text"]="This is an example content for pseudo multidimensional bash array"

# create DB
jssh_newDB "${DATADIR:-.}/myvalues"

# write to file data-bot-bash/somevalues.jssh from array MYVALUES
jssh_writeDB "WRITEVALUES" "${DATADIR:-}/myvalues"

# show what's written
cat "${DATADIR:-}/myvalues.jssh"
["value1"]	"example"
["value2"]	"a value"
["whynot","subindex2","text"]	"This is an example content for pseudo multidimensional bash array"
["whynot","subindex2"]	"whynot B"
["whynot","subindex1"]	"whynot A"
jssh_printDB

Print content of an ARRAY to STDOUT. ARRAY name must be declared with "declare -A ARRAY" before calling printDB..

usage: jssh_printDB "ARRAY"

example:

# Prepare array to store values
declare -A  PRINTVALUES

# read file data-bot-bash/myvalues.jssh into array READVALUES
jssh_readDB "PRINTVALUES" "${DATADIR:-}/myvalues"

# print DB to stdout
jssh_printDB READVALUES
["value1"]	"example"
["value2"]	"a value"
["whynot","subindex2","text"]	"This is an example content for pseudo multidimensional bash array"
["whynot","subindex2"]	"whynot B"
["whynot","subindex1"]	"whynot A"```
jssh_updateDB

Update/Add content of an ARRAY into a jsshDB file. ARRAY name must be declared with "declare -A ARRAY" before calling updateDB. "DB" file MUST exist or nothing is written.

Note: Existing content not in ARRAY is kept in file.

usage: jssh_updateDB "ARRAY" "filename"

usage: jssh_updateDB_async "ARRAY" "filename"

example:

# continued example from writeDB
MYVALUES=()
MYVALUES["newvalue"]="this is new"

# update file data-bot-bash/somevalues.jssh from array MYVALUES
jssh_updateDB "MYVALUES" "${DATADIR:-.}/myvalues"

# show what's written
["value1"]	"value1"
["loveit"]	"value2"
["whynot"]	"value3"
["newvalue"]	"this is new"

# now writeDB
cat "$DBfile"
jssh_writeDB "MYVALUES" "${DATADIR:-.}/myvalues"

# show what's written, ups!
cat "$DBfile"
["newvalue"]	"this is new"

jssh_readDB

Read content of a file in JSON.sh format into given ARRAY. ARRAY name must be declared with "declare -A ARRAY" upfront,

usage: jssh_readDB "ARRAY" "filename"

usage: jssh_readDB_async "ARRAY" "filename"

Note: readDB uses concurrent / shared locking from flock so multiple processes can read from file, as long no process is writing. Maximum timeout for reading is 1s to not block readers.

example:

# Prepare array to read values
declare -A  READVALUES

# read file data-bot-bash/myvalues.jssh into array READVALUES
jssh_readDB "READVALUES" "${DATADIR:-}/myvalues"

# sinple command to output values ONLY
printf "${READVALUES[*]}"
example a value This is an example content for pseudo multidimensional bash array whynot B whynot A

# print DB to stdout
jssh_printDB READVALUES
["value1"]	"example"
["value2"]	"a value"
["whynot","subindex2","text"]	"This is an example content for pseudo multidimensional bash array"
["whynot","subindex2"]	"whynot B"
["whynot","subindex1"]	"whynot A"


# access Array
echo "${READVALUES[vaule2]}"
a value

# change / add values
READVALUES["value2"]="this is a changed value"

echo "${READVALUES[vaule2]}"
this is a changed value

READVALUES["value3"]="new value"
READVALUES[whynot,subindex3]="new subindex value"

# new output
jssh_printDB READVALUES
["value1"]	"example"
["value3"]	"new value"
["value2"]	"this is a changed value"
["whynot","subindex2","text"]	"This is an example content for pseudo multidimensional bash array"
["whynot","subindex3"]	"new subindex value"
["whynot","subindex2"]	"whynot B"
["whynot","subindex1"]	"whynot A"
jssh_insertKeyDB

Insert, update, append a key=value pair to a jsshDB file, key name is only allowed to contain '-a-zA-Z0-9,._'

usage: jssh_insertKeyDB "key" "value" "filename"

usage: jssh_insertKeyDB_asnyc "key" "value" "filename"

deprecated: jssh_insertDB was renamed in version 0.96 to jssh_insertKeyDB

Note: inserKeytDB uses also excusive write locking, but with a maximum timeout of 2s. insertKeyDB is a "fast" operation, simply adding the value to the end of the file.

example:

jssh_insertKeyDB "newkey" "an other value" "${DATADIR:-.}/myvalues"
jssh_deleteKeyDB

Deleted a key=value pair from a jsshDB file, key name is only allowed to contain '-a-zA-Z0-9,._'

usage: jssh_deleteKeyDB "key" "filename"

usage: jssh_deleteKeyDB_async "key" "filename"

example:

jssh_deleteKeyDB "delkey"" "${DATADIR:-.}/myvalues"
jssh_countKeyDB

Increase a key=value pair from a jsshDB file by 1, key name is only allowed to contain '-a-zA-Z0-9,._' If value is given key is increased by value.

Side effect: if value is given key is updated "in place" (slower) and file is cleaned up, if no value is given fast path is used and new count is added to the end of file.

usage: jssh_countKeyDB "key" "filename" ["value"]

usage: jssh_countKeyDB_async "key" "filename" ["value"]

example:

jssh_countKeyDB "usercount"" "${DATADIR:-.}/myvalues"

https://linuxhint.com/associative_array_bash/

https://linuxconfig.org/how-to-use-arrays-in-bash-script


Aliases - shortcuts for often used functions

Aliases are handy shortcuts for using in 'mycommands.sh', they avoid error prone typing of "${CHAT[ID]}" "${USER[ID]}" as much as possible. Do not use them in bashbot.sh, modules and addons.

_is_botadmin

usage: _is_botadmin

alias for: user_is_botadmin "${USER[ID]}"

_is_admin

usage: _is_admin

alias for: user_is_admin "${CHAT[ID]}" "${USER[ID]}"

_is_allowed

usage: _is_allowed "what"

alias for: user_is_allowed "${USER[ID]}" "what" "${CHAT[ID]}"


_kick_user

usage: _kick_user "${USER[ID]}"

alias for: kick_chat_member "${CHAT[ID]}" "${USER[ID]}"

_unban

usage: _unban "${USER[ID]}"

alias for: unban_chat_member "${CHAT[ID]}" "${USER[ID]}"

_leave

usage: _leave

alias for: leave_chat "${CHAT[ID]}"


_message

usage: _message "message"

alias for: send_normal_message "${CHAT[ID]}" "message"

_normal_message

usage: _normal_message "message"

alias for: send_normal_message "${CHAT[ID]}" "message"

_html_message

usage: _html_message "message"

alias for: send_html_message "${CHAT[ID]}" "message"

_markdown_message

usage: _markdown_message "message"

alias for: send_markdown_message "${CHAT[ID]}" "message"


_inline_button

usage: _inline_button "${1}" "${2}"

alias for: send_inline_button "${CHAT[ID]}" "" "${1}" "${2}"

_inline_keyboard

usage: _inline_keyboard "${1}"

alias for: _inline_keyboard "${CHAT[ID]}" "" "${1}"

_keyboard_numpad

usage: _keyboard_numpad

alias for: send_keyboard "${CHAT[ID]}" "" '["1","2","3"],["4","5","6"],["7","8","9"],["-","0","."]' "yes"

_keyboard_yesno

usage: _keyboard_yesno

alias for: send_keyboard '["yes","no"]'

_del_keyboard

usage: _del_keyboard

alias for: remove_keyboard "${CHAT[ID]}" ""


Helper functions

download

Download the fiven URL and returns the final filename in TMPDIR. If the given filename exists,the filename is prefixed with a random number. Filename is not allowed to contain '/' or '..'.

usage: download URL filename

example:

file="$(download "https://avatars.githubusercontent.com/u/13046303" "avatar.jpg")"
echo "$file" -> ./data-bot-bash/avatar.jpg
file="$(download "https://avatars.githubusercontent.com/u/13046303" "avatar.jpg")"
echo "$file" -> ./data-bot-bash/12345-avatar.jpg
_exec_if_function

Returns true, even if the given function does not exist. Return false if function exist but returns false.

usage: _exec_if_function function

example:

_exec_if_function "answer_inline_query" "${iQUERY[ID]}" "Answer params"

# fast replacement for module functions exists check:
if _is_function "answer_inline_query"
then
	"answer_inline_query" "${iQUERY[ID]}" "Answer params"
fi

_exists

Returns true if the given function exist, can be used to check if a module is loaded.

usage _exists command

example:

_exists "curl" && _message "Command curl is not installed!"
_is_function

Returns true if the given function exist, can be used to check if a module is loaded.

usage _is_function function

example:

_is_function "background" && _message "you can run background jobs!"

Bashbot internal functions

These functions are for internal use only and must not used in your bot commands.

procname

Returns PrefixBotname_Postfix

usage: procname postfix prefix

example:

# returns botname, if already set
procname 
# returns unique identifier for everything related to chat
procname "${CHAT[ID]}"
# returns unique identifier for job, regardless of chat
procname "" "back-jobname-"
# returns unique identifier for a job related to a chat
# e.g. fifo, cmd and logfile name
procname "${CHAT[ID]}" "back-jobname-"
proclist

Returns process IDs of current bot processes containing string 'pattern' in name or argument.

usage: proclist pattern

example:

# list PIDs of all background processes
proclist "back-"
# list PIDs of all processes of a job
proclist "back-jobname-"
# list PIDs of all processes for a chat
proclist "_${CHAT[ID]}"
# list PIDs of all bot processes
proclist 
killallproc

kill all current bot processes containing string 'pattern' in name or argument

usage: killallproc pattern

example:

# kill all background processes
killallproc "back-"
# kill all processes for a chat
killallproc "_${CHAT[ID]}"
# kill all bot processes, including YOURSELF!
killallproc 

get_file

usage: url="$(get_file "${CHAT[ID]}" "message")"

send_text

usage: send_text "${CHAT[ID]}" "message"


JsonDecode

Outputs decoded string to STDOUT

usage: JsonDecode "string"

JsonGetString

Reads JSON from STDIN and Outputs found String to STDOUT

usage: JsonGetString "path","to","string"

JsonGetValue

Reads JSON from STDIN and Outputs found Value to STDOUT

usage: JsonGetValue "path","to","value"

Json2Array

Read JSON.sh style data from STDIN and assign to given ARRAY ARRAY name must be declared with "declare -A ARRAY" before calling

usage: Json2Array "ARRAY"

Array2Json

Output ARRAY as JSON.sh style data to STDOUT

usage: Array2Json "ARRAY"


get_chat_member_status

usage: get_chat_member_status "${CHAT[ID]}" "${USER[ID]}"


process_client

Every Message sent to your Bot is processed by this function. It parse the send JSON and assign the found Values to bash variables.

process_updates

If new updates are available, this functions gets the JSON from Telegram and dispatch it.

process_inline

Every Inline Message sent to your Bot is processed by this function. It parse the send JSON and assign the found Values to bash variables.

start_timer

Start the the every minute timer ...

event_timer

Dispatcher for BASHBOT_EVENT_TIMER

event_timer

Dispatcher for BASHBOT_EVENT_INLINE

event_timer

Dispatcher for BASHBOT_EVENT_MESSAGE and related


getBotName

The name of your bot is available as bash variable "$ME", there is no need to call this function if Bot is running.

usage: ME="$(getBotName)"

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