605 lines
16 KiB
Bash
605 lines
16 KiB
Bash
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#!/usr/bin/env bash
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# ----------
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# Default Configuration
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# ----------
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webhook_url="" # Incoming Webhooks integration URL
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upload_token="" # The user's API authentication token, only used for file uploads
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channel="general" # Default channel to post messages. '#' is prepended, if it doesn't start with '#' or '@'.
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tmp_dir="/tmp" # Temporary file is created in this directory.
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username="slacktee" # Default username to post messages.
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icon="ghost" # Default emoji to post messages. Don't wrap it with ':'. See http://www.emoji-cheat-sheet.com; can be a url too.
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attachment="" # Default color of the attachments. If an empty string is specified, the attachments are not used.
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# ----------
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# Initialization
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# ----------
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me=$(basename "$0")
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title=""
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mode="buffering"
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link=""
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textWrapper="\`\`\`"
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parseMode=""
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fields=()
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# Since bash 3 doesn't support the associative array, we store colors and patterns separately
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cond_color_colors=()
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cond_color_patterns=()
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found_pattern_color=""
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# This color is used when 'attachment' is used without color specification
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internal_default_color="#C0C0C0"
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# Since bash 3 doesn't support the associative array, we store prefixes and patterns separately
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cond_prefix_prefixes=()
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cond_prefix_patterns=()
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found_title_prefix=""
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function show_help()
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{
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echo "usage: $me [options]"
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echo " options:"
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echo " -h, --help Show this help."
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echo " -n, --no-buffering Post input values without buffering."
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echo " -f, --file Post input values as a file."
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echo " -l, --link Add a URL link to the message."
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echo " -c, --channel channel_name Post input values to specified channel or user."
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echo " -u, --username user_name This username is used for posting."
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echo " -i, --icon emoji_name|url This icon is used for posting. You can use a word"
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echo " from http://www.emoji-cheat-sheet.com or a direct url to an image."
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echo " -t, --title title_string This title is added to posts."
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echo " -m, --message-formatting format Switch message formatting (none|link_names|full)."
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echo " See https://api.slack.com/docs/formatting for more details."
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echo " -p, --plain-text Don't surround the post with triple backticks."
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echo " -a, --attachment [color] Use attachment (richly-formatted message)"
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echo " Color can be 'good','warning','danger' or any hex color code (eg. #439FE0)"
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echo " See https://api.slack.com/docs/attachments for more details."
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echo " -e, --field title value Add a field to the attachment. You can specify this multiple times."
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echo " -s, --short-field title value Add a short field to the attachment. You can specify this multiple times."
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echo " -o, --cond-color color pattern Change the attachment color if the specified Regex pattern matches the input."
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echo " You can specify this multile times."
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echo " If more than one pattern matches, the latest matched pattern is used."
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echo " -d, --cond-prefix prefix pattern This prefix is added to the message, if the specified Regex pattern matches the input."
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echo " You can specify this multile times."
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echo " If more than one pattern matches, the latest matched pattern is used."
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echo " --config config_file Specify the location of the config file."
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echo " --setup Setup slacktee interactively."
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}
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function send_message()
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{
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message="$1"
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# Prepend the prefix to the message, if it's set
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if [[ -z $attachment && -n $found_pattern_prefix ]]; then
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message="$found_pattern_prefix$message"
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# Clear conditional prefix for the nest send
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found_pattern_prefix=""
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fi
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escaped_message=$(echo "$textWrapper\n$message\n$textWrapper" | sed 's/"/\\"/g' | sed "s/'/\\'/g" )
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message_attr=""
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if [[ $message != "" ]]; then
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if [[ -n $attachment ]]; then
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# Set message color
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message_color="$attachment"
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if [[ -n $found_pattern_color ]]; then
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message_color="$found_pattern_color"
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# Reset with the default color for the next send
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found_pattern_color="$attachment"
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fi
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message_attr="\"attachments\": [{ \"color\": \"$message_color\", \"mrkdwn_in\": [\"text\", \"fields\"], \"text\": \"$escaped_message\" "
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if [[ -n $found_pattern_prefix ]]; then
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title="$found_pattern_prefix $title"
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# Clear conditional prefix for the nest send
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found_pattern_prefix=""
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fi
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if [[ -n $title ]]; then
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message_attr="$message_attr, \"title\": \"$title\" "
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fi
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if [[ -n $link ]]; then
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message_attr="$message_attr, \"title_link\": \"$link\" "
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fi
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if [[ $mode == "file" ]]; then
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fields+=("{\"title\": \"Access URL\", \"value\": \"$access_url\" }")
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fields+=("{\"title\": \"Download URL\", \"value\": \"$download_url\"}")
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fi
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if [[ ${#fields[@]} != 0 ]]; then
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message_attr="$message_attr, \"fields\": ["
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for field in "${fields[@]}"; do
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message_attr="$message_attr $field,"
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done
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message_attr=${message_attr%?} # Remove last comma
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message_attr="$message_attr ]"
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fi
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# Close attachment
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message_attr="$message_attr }], "
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else
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message_attr="\"text\": \"$escaped_message\","
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fi
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icon_url=""
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icon_emoji=""
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if echo "$icon" | grep -q "^https\?://.*"; then
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icon_url="$icon"
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else
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icon_emoji=":$icon:"
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fi
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json="{\"channel\": \"$channel\", \"username\": \"$username\", $message_attr \"icon_emoji\": \"$icon_emoji\", \"icon_url\": \"$icon_url\" $parseMode}"
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post_result=$(curl -X POST --data-urlencode "payload=$json" "$webhook_url" 2> /dev/null)
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exit_code=1
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if [[ $post_result == "ok" ]]; then
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exit_code=0
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fi
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fi
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}
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function process_line()
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{
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echo "$1"
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line="$(echo "$1" | sed $'s/\t/ /g')"
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# Check the patterns of the conditional colors
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# If more than one pattern matches, the latest pattern is used
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if [[ ${#cond_color_patterns[@]} != 0 ]]; then
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for i in "${!cond_color_patterns[@]}"; do
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if [[ $line =~ ${cond_color_patterns[$i]} ]]; then
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found_pattern_color=${cond_color_colors[$i]}
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fi
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done
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fi
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# Check the patterns of the conditional titles
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# If more than one pattern matches, the latest pattern is used
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if [[ ${#cond_prefix_patterns[@]} != 0 ]]; then
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for i in "${!cond_prefix_patterns[@]}"; do
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if [[ $line =~ ${cond_prefix_patterns[$i]} ]]; then
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found_pattern_prefix=${cond_prefix_prefixes[$i]}
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if [[ -n $attachment || $mode != "no-buffering" ]]; then
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# Append a line break to the prefix for better formatting
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found_pattern_prefix="$found_pattern_prefix\n"
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else
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# Append a space to the prefix for better formatting
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found_pattern_prefix="$found_pattern_prefix "
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fi
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fi
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done
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fi
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if [[ $mode == "no-buffering" ]]; then
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prefix=''
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if [[ -z $attachment ]]; then
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prefix=$title
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fi
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send_message "$prefix$line"
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elif [[ $mode == "file" ]]; then
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echo "$line" >> "$filename"
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else
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if [[ -z "$text" ]]; then
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text="$line"
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else
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text="$text\n$line"
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fi
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fi
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}
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function setup()
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{
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if [[ -z "$HOME" ]]; then
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echo "\$HOME is not defined. Please set it first."
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exit 1
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fi
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local_conf="$HOME/.slacktee"
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if [[ -e "$local_conf" ]]; then
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echo ".slacktee is found in your home directory."
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read -p "Are you sure to overwrite it? [y/n] :" choice
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case "$choice" in
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y|Y )
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# Continue
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;;
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* )
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exit 0 # Abort
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;;
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esac
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fi
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# Load current local config
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. $local_conf
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# Start setup
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read -p "Incoming Webhook URL [$webhook_url]: " input_webhook_url
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if [[ -z "$input_webhook_url" ]]; then
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input_webhook_url=$webhook_url
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fi
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read -p "Upload Token [$upload_token]: " input_upload_token
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if [[ -z "$input_upload_token" ]]; then
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input_upload_token=$upload_token
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fi
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read -p "Temporary Directory [$tmp_dir]: " input_tmp_dir
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if [[ -z "$input_tmp_dir" ]]; then
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input_tmp_dir=$tmp_dir
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fi
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read -p "Default Channel [$channel]: " input_channel
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if [[ -z "$input_channel" ]]; then
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input_channel=$channel
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fi
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read -p "Default Username [$username]: " input_username
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if [[ -z "$input_username" ]]; then
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input_username=$username
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fi
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read -p "Default Icon: [$icon]: " input_icon
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if [[ -z "$input_icon" ]]; then
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input_icon=$icon
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fi
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read -p "Default color of the attachment. (empty string disables attachment) [$attachment]: " input_attachment
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if [[ -z "$input_attachment" ]]; then
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input_attachment=$attachment
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elif [[ $input_attachment == '""' || $input_attachment == "''" ]]; then
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input_attachment=""
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fi
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cat <<- EOF | sed 's/^[[:space:]]*//' > "$local_conf"
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webhook_url="$input_webhook_url"
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upload_token="$input_upload_token"
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tmp_dir="$input_tmp_dir"
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channel="$input_channel"
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username="$input_username"
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icon="$input_icon"
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attachment="$input_attachment"
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EOF
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}
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# ----------
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# Parse command line options
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# ----------
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OPTIND=1
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while [[ $# -gt 0 ]]; do
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opt="$1"
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shift
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case "$opt" in
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-h|\?|--help)
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show_help
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exit 0
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;;
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-n|--no-buffering)
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mode="no-buffering"
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;;
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-f|--file)
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mode="file"
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;;
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-l|--link)
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link="$1"
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shift
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;;
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-c|--channel)
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opt_channel="$1"
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shift
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;;
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-u|--username)
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opt_username="$1"
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shift
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;;
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-i|--icon)
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opt_icon="$1"
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shift
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;;
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-t|--title)
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title="$1"
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shift
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;;
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-d|--cond-prefix)
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case "$1" in
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-*|'')
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# Found next command line option or empty. Error.
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echo "a prefix of the conditional title was not specified"
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show_help
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exit 1
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;;
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*)
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# Prefix should be found
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case "$2" in
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-*|'')
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# Found next command line option or empty. Error.
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echo "a pattern of the conditional title was not specified"
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show_help
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exit 1
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;;
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*)
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# Set the prefix and the pattern to arrays
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cond_prefix_prefixes+=("$1")
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cond_prefix_patterns+=("$2")
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shift
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shift
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;;
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esac
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;;
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esac
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;;
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-m|--message-formatting)
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case "$1" in
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none)
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parseMode=', "parse": "none"'
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;;
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link_names)
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parseMode=', "link_names": "1"'
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;;
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full)
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parseMode=', "parse": "full"'
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;;
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*)
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echo "unknown message formatting option"
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show_help
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exit 1
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;;
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esac
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shift
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;;
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-p|--plain-text)
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textWrapper=""
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;;
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-a|--attachment)
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case "$1" in
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-*|'')
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# Found next command line option
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opt_attachment="$internal_default_color" # Use default color
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;;
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\#*|good|warning|danger)
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# Found hex color code or predefined colors
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opt_attachment="$1"
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shift
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;;
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*)
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echo "unknown attachment color"
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show_help
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exit 1
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;;
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esac
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;;
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-o|--cond-color)
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case "$1" in
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-*|'')
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# Found next command line option or empty. Error.
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echo "a color of the conditional color was not specified"
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show_help
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exit 1
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;;
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\#*|good|warning|danger)
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# Found hex color code or predefined colors
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case "$2" in
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-*|'')
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# Found next command line option or empty. Error.
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echo "a pattern of the conditional color was not specified"
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show_help
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exit 1
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||
|
|
;;
|
||
|
|
*)
|
||
|
|
# Set the color and the pattern to arrays
|
||
|
|
cond_color_colors+=("$1")
|
||
|
|
cond_color_patterns+=("$2")
|
||
|
|
shift
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
echo "unknown attachment color $1"
|
||
|
|
show_help
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
-e|-s|--field|--short-field)
|
||
|
|
case "$1" in
|
||
|
|
-*|'')
|
||
|
|
# Found next command line option or empty. Error.
|
||
|
|
echo "field title was not specified"
|
||
|
|
show_help
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
case "$2" in
|
||
|
|
-*|'')
|
||
|
|
# Found next command line option or empty. Error.
|
||
|
|
echo "field value was not specified"
|
||
|
|
show_help
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
if [[ $opt == "-s" || $opt == "--short-field" ]]; then
|
||
|
|
fields+=("{\"title\": \"$1\", \"value\": \"$2\", \"short\": true}")
|
||
|
|
else
|
||
|
|
fields+=("{\"title\": \"$1\", \"value\": \"$2\"}")
|
||
|
|
fi
|
||
|
|
shift
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
--config)
|
||
|
|
CUSTOM_CONFIG=$1
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
--setup)
|
||
|
|
setup
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
echo "illegal option $opt"
|
||
|
|
show_help
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
# ---------
|
||
|
|
# Read in our configurations
|
||
|
|
# ---------
|
||
|
|
if [[ -e "/etc/slacktee.conf" ]]; then
|
||
|
|
. /etc/slacktee.conf
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ -n "$HOME" && -e "$HOME/.slacktee" ]]; then
|
||
|
|
. "$HOME/.slacktee"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ -e "$CUSTOM_CONFIG" ]]; then
|
||
|
|
. $CUSTOM_CONFIG
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Overwrite webhook_url if the environment variable SLACKTEE_WEBHOOK is set
|
||
|
|
if [[ "$SLACKTEE_WEBHOOK" != "" ]]; then
|
||
|
|
webhook_url="$SLACKTEE_WEBHOOK"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Overwrite upload_token if the environment variable SLACKTEE_TOKEN is set
|
||
|
|
if [[ "$SLACKTEE_TOKEN" != "" ]]; then
|
||
|
|
upload_token="$SLACKTEE_TOKEN"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Overwrite channel if it's specified in the command line option
|
||
|
|
if [[ "$opt_channel" != "" ]]; then
|
||
|
|
channel="$opt_channel"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Overwrite username if it's specified in the command line option
|
||
|
|
if [[ "$opt_username" != "" ]]; then
|
||
|
|
username="$opt_username"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Overwrite icon if it's specified in the command line option
|
||
|
|
if [[ "$opt_icon" != "" ]]; then
|
||
|
|
icon="$opt_icon"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Overwrite attachment if it's specified in the command line option
|
||
|
|
if [[ "$opt_attachment" != "" ]]; then
|
||
|
|
attachment="$opt_attachment"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Set the default color to attachment if it's still empty and the length of the cond_color_patterns is not 0
|
||
|
|
if [[ -z $attachment ]] && [[ ${#cond_color_patterns[@]} != 0 ]]; then
|
||
|
|
attachment="$internal_default_color"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# ----------
|
||
|
|
# Validate configurations
|
||
|
|
# ----------
|
||
|
|
|
||
|
|
if [[ $webhook_url == "" ]]; then
|
||
|
|
echo "Please setup the webhook url of this incoming webhook integration."
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ $upload_token == "" && $mode == "file" ]]; then
|
||
|
|
echo "Please provide the authentication token for file uploads."
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ $channel == "" ]]; then
|
||
|
|
echo "Please specify a channel."
|
||
|
|
exit 1
|
||
|
|
elif [[ ( "$channel" != "#"* ) && ( "$channel" != "@"* ) ]]; then
|
||
|
|
channel="#$channel"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ -n "$icon" ]]; then
|
||
|
|
icon=${icon#:} # remove leading ':'
|
||
|
|
icon=${icon%:} # remove trailing ':'
|
||
|
|
fi
|
||
|
|
|
||
|
|
# ----------
|
||
|
|
# Start script
|
||
|
|
# ----------
|
||
|
|
|
||
|
|
text=""
|
||
|
|
if [[ -n "$title" || -n "$link" ]]; then
|
||
|
|
# Use link as title, if title is not specified
|
||
|
|
if [[ -z "$title" ]]; then
|
||
|
|
title="$link"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Add title to filename in the file mode
|
||
|
|
if [[ "$mode" == "file" ]]; then
|
||
|
|
filetitle=$(echo "$title"|sed 's/[ /:.]//g')
|
||
|
|
filetitle="$filetitle-"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ -z "$attachment" ]]; then
|
||
|
|
if [[ "$mode" == "no-buffering" ]]; then
|
||
|
|
if [[ -n "$link" ]]; then
|
||
|
|
title="<$link|$title>: "
|
||
|
|
else
|
||
|
|
title="$title: "
|
||
|
|
fi
|
||
|
|
elif [[ "$mode" == "file" ]]; then
|
||
|
|
if [[ -n "$link" ]]; then
|
||
|
|
title="<$link|$title>"
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
if [[ -n "$link" ]]; then
|
||
|
|
text="-- <$link|$title> --\n"
|
||
|
|
else
|
||
|
|
text="-- $title --\n"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
timestamp="$(date +'%m%d%Y-%H%M%S')"
|
||
|
|
filename="$tmp_dir/$filetitle$$-$timestamp.log"
|
||
|
|
|
||
|
|
if [[ "$mode" == "file" ]]; then
|
||
|
|
touch $filename
|
||
|
|
fi
|
||
|
|
|
||
|
|
exit_code=0
|
||
|
|
|
||
|
|
while IFS='' read line; do
|
||
|
|
process_line "$line"
|
||
|
|
done
|
||
|
|
if [[ -n $line ]]; then
|
||
|
|
process_line "$line"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ "$mode" == "buffering" ]]; then
|
||
|
|
send_message "$text"
|
||
|
|
elif [[ "$mode" == "file" ]]; then
|
||
|
|
if [[ -s "$filename" ]]; then
|
||
|
|
channels_param=""
|
||
|
|
if [[ ( "$channel" == "#"* ) ]]; then
|
||
|
|
# Set channels for making the file public
|
||
|
|
channels_param="-F channels=$channel"
|
||
|
|
fi
|
||
|
|
result="$(curl -F file=@"$filename" -F token="$upload_token" $channels_param https://slack.com/api/files.upload 2> /dev/null)"
|
||
|
|
access_url="$(echo "$result" | awk 'match($0, /url_private":"([^"]*)"/) {print substr($0, RSTART+14, RLENGTH-15)}'|sed 's/\\//g')"
|
||
|
|
download_url="$(echo "$result" | awk 'match($0, /url_private_download":"([^"]*)"/) {print substr($0, RSTART+23, RLENGTH-24)}'|sed 's/\\//g')"
|
||
|
|
if [[ -n "$attachment" ]]; then
|
||
|
|
text="Input file has been uploaded"
|
||
|
|
else
|
||
|
|
if [[ "$title" != "" ]]; then
|
||
|
|
title=" of $title"
|
||
|
|
fi
|
||
|
|
text="Input file$title has been uploaded.\n$access_url\n\nYou can download it from the link below.\n$download_url"
|
||
|
|
fi
|
||
|
|
send_message "$text"
|
||
|
|
fi
|
||
|
|
# Clean up the temp file
|
||
|
|
rm "$filename"
|
||
|
|
fi
|
||
|
|
|
||
|
|
exit $exit_code
|