110 lines
4.3 KiB
Rust
110 lines
4.3 KiB
Rust
use crate::common_messages::Messages;
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use std::collections::HashSet;
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use std::fs::DirEntry;
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#[derive(Debug, Clone, Default)]
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pub struct Extensions {
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file_extensions_hashset: HashSet<String>,
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}
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impl Extensions {
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pub fn new() -> Self {
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Default::default()
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}
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/// List of allowed extensions, only files with this extensions will be checking if are duplicates
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/// After, extensions cannot contains any dot, commas etc.
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pub fn set_allowed_extensions(&mut self, mut allowed_extensions: String) -> Messages {
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let mut messages = Messages::new();
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if allowed_extensions.trim().is_empty() {
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return messages;
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}
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allowed_extensions = allowed_extensions.replace("IMAGE", "jpg,kra,gif,png,bmp,tiff,hdr,svg");
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allowed_extensions = allowed_extensions.replace("VIDEO", "mp4,flv,mkv,webm,vob,ogv,gifv,avi,mov,wmv,mpg,m4v,m4p,mpeg,3gp");
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allowed_extensions = allowed_extensions.replace("MUSIC", "mp3,flac,ogg,tta,wma,webm");
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allowed_extensions = allowed_extensions.replace("TEXT", "txt,doc,docx,odt,rtf");
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let extensions: Vec<String> = allowed_extensions.split(',').map(str::trim).map(String::from).collect();
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for mut extension in extensions {
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if extension.is_empty() || extension.replace(['.', ' '], "").trim().is_empty() {
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continue;
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}
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if extension.starts_with('.') {
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extension = extension[1..].to_string();
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}
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if extension.contains('.') {
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messages.warnings.push(format!("{extension} is not valid extension because contains dot inside"));
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continue;
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}
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if extension.contains(' ') {
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messages.warnings.push(format!("{extension} is not valid extension because contains empty space inside"));
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continue;
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}
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self.file_extensions_hashset.insert(extension);
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}
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if self.file_extensions_hashset.is_empty() {
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messages
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.messages
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.push("No valid extensions were provided, so allowing all extensions by default.".to_string());
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}
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messages
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}
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pub fn matches_filename(&self, file_name: &str) -> bool {
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// assert_eq!(file_name, file_name.to_lowercase());
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if !self.file_extensions_hashset.is_empty() && !self.file_extensions_hashset.iter().any(|e| file_name.ends_with(e)) {
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return false;
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}
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true
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}
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pub fn check_if_entry_ends_with_extension(&self, entry_data: &DirEntry) -> bool {
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if self.file_extensions_hashset.is_empty() {
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return true;
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}
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let file_name = entry_data.file_name();
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let Some(file_name_str) = file_name.to_str() else { return false };
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let Some(extension_idx) = file_name_str.rfind('.') else { return false };
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let extension = &file_name_str[extension_idx + 1..];
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if extension.chars().all(|c| c.is_ascii_lowercase()) {
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self.file_extensions_hashset.contains(extension)
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} else {
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self.file_extensions_hashset.contains(&extension.to_lowercase())
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}
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}
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pub fn set_any_extensions(&self) -> bool {
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!self.file_extensions_hashset.is_empty()
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}
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fn extend_allowed_extensions(&mut self, file_extensions: &[&str]) {
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for extension in file_extensions {
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let extension_without_dot = extension.trim_start_matches('.');
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self.file_extensions_hashset.insert(extension_without_dot.to_string());
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}
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}
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// E.g. when using similar videos, user can provide extensions like "mp4,flv", but if user provide "mp4,jpg" then
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// it will be only "mp4" because "jpg" is not valid extension for videos
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fn union_allowed_extensions(&mut self, file_extensions: &[&str]) {
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let mut new_extensions = HashSet::new();
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for extension in file_extensions {
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let extension_without_dot = extension.trim_start_matches('.');
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new_extensions.insert(extension_without_dot.to_string());
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}
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}
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pub fn set_and_validate_extensions(&mut self, file_extensions: &[&str]) {
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if self.file_extensions_hashset.is_empty() {
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self.extend_allowed_extensions(file_extensions);
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} else {
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self.union_allowed_extensions(file_extensions);
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}
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}
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}
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