Files
shell-scripts/SendDiscordChunk.ps1
T

56 lines
1.9 KiB
PowerShell

# internal function to transmit a chunk of text to Discord
function SendDiscordMessage
{
param (
[string] $message = $(throw "-message is required"),
[string] $webhook = $(throw "-webhook is required"),
[string] $botName = $(throw "-botName is required"),
[int] $color = -1,
[string] $title = ""
)
# force utf-8, because that is what Discord needs
$OutputEncoding = [console]::InputEncoding = [console]::OutputEncoding = New-Object System.Text.UTF8Encoding
$header = "Content-Type: application/json"
# convert string into json, escaping the given message
$title = ConvertTo-Json -InputObject $title
$message = ConvertTo-Json -InputObject $message
$botName = ConvertTo-Json -InputObject $botName
# rewrite json string, because "\u001b[m" needs to "\u001b[0m" instead
# windows is fine with the missing zero, but Discord needs it
$message = $message -Replace "\\u001b\[m", "\u001b[0m"
# only enable colors if needed
$prefix = '';
if ($message -contains "\u001b") {
$prefix = 'ansi\n';
}
# remove wrapping quotes around json string, replace with color-enabled block quotes
$message = '"```' + $prefix + $message.SubString(1, $message.length - 2) + '\n```"'
# build post data: {"username": "$botName", "content": "$message"}
$content = "{";
if ($botName) {
$content += '"username": ' + $botName + ', ';
}
$content += '"embeds": [{"description": ' + $message;
if ($color -ge 0) {
$content += ', "color": ' + $color;
}
if ($title) {
$content += ', "title": ' + $title;
}
$content += '}]}';
# post data is complex, so we have to pipe it into curl
# display the resulting id/message returned from Discord
echo "$content" | curl.exe -s -H "$header" -X "POST" -d "@-" "$webhook" | ConvertFrom-Json | Select-Object -Property id, message
}