Files
coop/crates/common/src/media_extractor.rs
Ren Amamiya c239e351b8 feat: add support for rendering images in chat messages (#29)
Reviewed-on: #29
Co-authored-by: Ren Amamiya <reya@lume.nu>
Co-committed-by: Ren Amamiya <reya@lume.nu>
2026-04-10 02:00:18 +00:00

118 lines
3.7 KiB
Rust

use gpui::SharedUri;
use regex::Regex;
/// Extracts media URLs from a string and returns both the extracted URLs
/// and the string with media URLs removed
pub struct MediaExtractor {
image_regex: Regex,
video_regex: Regex,
}
impl MediaExtractor {
/// Creates a new MediaExtractor with compiled regex patterns
pub fn new() -> Self {
MediaExtractor {
// Match common image extensions
image_regex: Regex::new(
r#"(?i)\bhttps?://[^\s<>"']+\.(?:jpg|jpeg|png|gif|bmp|webp|svg|ico)(?:\?[^\s<>"']*)?\b"#,
).unwrap(),
// Match common video extensions
video_regex: Regex::new(
r#"(?i)\bhttps?://[^\s<>"']+\.(?:mp4|mov|avi|mkv|webm|flv|wmv|m4v|3gp)(?:\?[^\s<>"']*)?\b"#,
).unwrap(),
}
}
/// Extracts all media URLs from a string
pub fn extract_media_urls(&self, text: &str) -> Vec<SharedUri> {
let mut urls = Vec::new();
// Extract image URLs
for capture in self.image_regex.find_iter(text) {
urls.push(capture.as_str().to_string().into());
}
// Extract video URLs
// for capture in self.video_regex.find_iter(text) {
// urls.push(capture.as_str().to_string().into());
// }
urls
}
/// Removes all media URLs from a string and returns the cleaned text
pub fn remove_media_urls(&self, text: &str) -> String {
let mut result = text.to_string();
// Remove image URLs
result = self.image_regex.replace_all(&result, "").to_string();
// Remove video URLs
// result = self.video_regex.replace_all(&result, "").to_string();
// Clean up extra whitespace that might result from removal
self.cleanup_text(&result)
}
/// Extracts media URLs and removes them from the string, returning both
pub fn extract_and_remove(&self, text: &str) -> (Vec<SharedUri>, String) {
let urls = self.extract_media_urls(text);
let cleaned_text = self.remove_media_urls(text);
(urls, cleaned_text)
}
/// Helper function to clean up text after URL removal
fn cleanup_text(&self, text: &str) -> String {
let text = text.trim();
// Remove multiple consecutive spaces
let re = Regex::new(r"\s+").unwrap();
re.replace_all(text, " ").trim().to_string()
}
/// Validates if a URL is a valid media URL
pub fn is_media_url(&self, url: &str) -> bool {
self.image_regex.is_match(url) || self.video_regex.is_match(url)
}
/// Categorizes extracted URLs into images and videos
pub fn categorize_urls(&self, urls: &[SharedUri]) -> (Vec<SharedUri>, Vec<SharedUri>) {
let mut images = Vec::new();
let mut videos = Vec::new();
for url in urls {
if self.image_regex.is_match(url) {
images.push(url.clone());
} else if self.video_regex.is_match(url) {
videos.push(url.clone());
}
}
(images, videos)
}
}
impl Default for MediaExtractor {
fn default() -> Self {
Self::new()
}
}
/// Convenience function for one-time extraction and removal
pub fn extract_and_remove_media_urls(text: &str) -> (Vec<SharedUri>, String) {
let extractor = MediaExtractor::new();
extractor.extract_and_remove(text)
}
/// Convenience function for just extracting media URLs
pub fn extract_media_urls(text: &str) -> Vec<SharedUri> {
let extractor = MediaExtractor::new();
extractor.extract_media_urls(text)
}
/// Convenience function for just removing media URLs
pub fn remove_media_urls(text: &str) -> String {
let extractor = MediaExtractor::new();
extractor.remove_media_urls(text)
}