62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
package client
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import (
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"errors"
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"fmt"
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"net/url"
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"regexp"
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"strings"
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)
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var (
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reHTML = regexp.MustCompile(`<(.|\n)+?>`)
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reIMG = regexp.MustCompile(`<img .+?>`)
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)
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// StripHTML removes HTML content from a message.
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func StripHTML(s string) string {
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s = reIMG.ReplaceAllString(s, "inline embedded image")
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return strings.TrimSpace(reHTML.ReplaceAllString(s, ""))
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}
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// WebSocketURL converts the BareRTC base (https) URL into the WebSocket link.
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func WebSocketURL(baseURL string) (string, error) {
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url, err := url.Parse(baseURL)
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if err != nil {
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return "", err
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}
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switch url.Scheme {
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case "https":
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return fmt.Sprintf("wss://%s/ws", url.Host), nil
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case "http":
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return fmt.Sprintf("ws://%s/ws", url.Host), nil
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case "ws", "wss":
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return fmt.Sprintf("%s//%s/ws", url.Scheme, url.Host), nil
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default:
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return "", errors.New("unsupported URL scheme")
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}
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}
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// AtMentioned checks if somebody has "at mentioned" your username (having your
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// name at the beginning or end of their message). Returns whether the at mention
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// was detected, along with the modified message without the at mention name on the
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// end of it.
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func AtMentioned(c *Client, message string) (bool, string) {
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// Patterns to look for.
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var (
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reAtMention = regexp.MustCompile(
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fmt.Sprintf(`^@?%s|@?%s$`, c.Username(), c.Username()),
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)
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)
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m := reAtMention.FindStringSubmatch(message)
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if m != nil {
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// Found a match! Sub off the at mentioned part and return.
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message = strings.TrimSpace(reAtMention.ReplaceAllString(message, ""))
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if len(message) > 0 {
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return true, message
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}
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}
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return false, message
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}
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