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Loop through the iconlist until an icon is found

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Loop for a maximum of 5 times through the iconlist or until a
successful download of an icon.
This commit is contained in:
BlackDex 2019-02-04 16:59:52 +01:00
parent 48113b7bd9
commit 574b040142
1 changed files with 23 additions and 12 deletions
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33
src/api/icons.rs
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@ -137,19 +137,19 @@ struct IconList {
href: String,
}
/// Returns a Result with a String which holds the preferend favicon location.
/// There will always be a result with a string which will contain https://example.com/favicon.ico
/// This does not mean that that location does exists, but it is the default location.
/// Returns a Result/Tuple which holds a Vector IconList and a string which holds the cookies from the last response.
/// There will always be a result with a string which will contain https://example.com/favicon.ico and an empty string for the cookies.
/// This does not mean that that location does exists, but it is the default location browser use.
///
/// # Argument
/// * `domain` - A string which holds the domain with extension.
///
/// # Example
/// ```
/// favicon_location1 = get_icon_url("github.com");
/// favicon_location2 = get_icon_url("gitlab.com");
/// let (mut iconlist, cookie_str) = get_icon_url("github.com")?;
/// let (mut iconlist, cookie_str) = get_icon_url("gitlab.com")?;
/// ```
fn get_icon_url(domain: &str) -> Result<(String, String), Error> {
fn get_icon_url(domain: &str) -> Result<(Vec<IconList>, String), Error> {
// Default URL with secure and insecure schemes
let ssldomain = format!("https://{}", domain);
let httpdomain = format!("http://{}", domain);
@ -200,7 +200,7 @@ fn get_icon_url(domain: &str) -> Result<(String, String), Error> {
iconlist.sort_by_key(|x| x.priority);
// There always is an icon in the list, so no need to check if it exists, and just return the first one
Ok((iconlist.remove(0).href, cookie_str))
Ok((iconlist, cookie_str))
}
fn get_page(url: &str) -> Result<Response, Error> {
@ -292,13 +292,24 @@ fn parse_sizes(sizes: &str) -> (u16, u16) {
}
fn download_icon(domain: &str) -> Result<Vec<u8>, Error> {
let (url, cookie_str) = get_icon_url(&domain)?;
info!("Downloading icon for {} via {}...", domain, url);
let mut res = get_page_with_cookies(&url, &cookie_str)?;
let (mut iconlist, cookie_str) = get_icon_url(&domain)?;
let mut buffer = Vec::new();
let mut attempts = 0;
while attempts < 5 {
let url = &iconlist.remove(0).href;
info!("Downloading icon for {} via {}...", domain, url);
match get_page_with_cookies(&url, &cookie_str) {
Ok(mut res) => {
info!("Download finished for {}", url);
res.copy_to(&mut buffer)?;
break;
},
Err(_) => info!("Download failed for {}", url),
};
attempts += 1;
}
if buffer.is_empty() {
err!("Empty response")