65 lines
1.5 KiB
Rust
65 lines
1.5 KiB
Rust
use crate::errors::ValidationError;
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use crate::utils::html::clean_html_strict;
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pub const ATTACHMENTS_MAX_NUM: usize = 15;
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pub const EMOJIS_MAX_NUM: usize = 20;
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pub const CONTENT_MAX_SIZE: usize = 100000;
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const CONTENT_ALLOWED_TAGS: [&str; 8] = [
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"a",
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"br",
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"pre",
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"code",
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"strong",
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"em",
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"p",
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"span",
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];
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pub fn content_allowed_classes() -> Vec<(&'static str, Vec<&'static str>)> {
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vec![
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("a", vec!["hashtag", "mention", "u-url"]),
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("span", vec!["h-card"]),
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("p", vec!["inline-quote"]),
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]
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}
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pub fn clean_content(
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content: &str,
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) -> Result<String, ValidationError> {
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// Check content size to not exceed the hard limit
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// Character limit from config is not enforced at the backend
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if content.len() > CONTENT_MAX_SIZE {
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return Err(ValidationError("post is too long"));
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};
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let content_safe = clean_html_strict(
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content,
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&CONTENT_ALLOWED_TAGS,
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content_allowed_classes(),
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);
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let content_trimmed = content_safe.trim();
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if content_trimmed.is_empty() {
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return Err(ValidationError("post can not be empty"));
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};
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Ok(content_trimmed.to_string())
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_clean_content_empty() {
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let content = " ";
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let result = clean_content(content);
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assert_eq!(result.is_ok(), false);
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}
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#[test]
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fn test_clean_content_trimming() {
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let content = "test ";
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let cleaned = clean_content(content).unwrap();
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assert_eq!(cleaned, "test");
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}
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}
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