convert all remaining IETF RFC links to new format

src/http/header/accept.rs

@@ -153,7 +153,7 @@ impl Accept {
     /// Returns a sorted list of mime types from highest to lowest preference, accounting for
     /// [q-factor weighting] and specificity.
     ///
-    /// [q-factor weighting]: https://tools.ietf.org/html/rfc7231#section-5.3.2
+    /// [q-factor weighting]: https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.2
     pub fn mime_precedence(&self) -> Vec<Mime> {
         let mut types = self.0.clone();
 
@@ -203,7 +203,7 @@ impl Accept {
     ///
     /// Returns `None` if contained list is empty.
     ///
-    /// [q-factor weighting]: https://tools.ietf.org/html/rfc7231#section-5.3.2
+    /// [q-factor weighting]: https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.2
     pub fn mime_preference(&self) -> Option<Mime> {
         let types = self.mime_precedence();
         types.first().cloned()

src/http/header/accept_language.rs

@@ -3,8 +3,8 @@ use language_tags::LanguageTag;
 use super::{QualityItem, ACCEPT_LANGUAGE};
 
 crate::http::header::common_header! {
-    /// `Accept-Language` header, defined in
-    /// [RFC7231](http://tools.ietf.org/html/rfc7231#section-5.3.5)
+    /// `Accept-Language` header, defined
+    /// in [RFC 7231 §5.3.5](https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.5)
     ///
     /// The `Accept-Language` header field can be used by user agents to
     /// indicate the set of natural languages that are preferred in the

src/http/header/content_disposition.rs

@@ -204,9 +204,9 @@ impl DispositionParam {
 
 /// A *Content-Disposition* header. It is compatible to be used either as
 /// [a response header for the main body](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Disposition#as_a_response_header_for_the_main_body)
-/// as (re)defined in [RFC 6266](https://tools.ietf.org/html/rfc6266), or as
+/// as (re)defined in [RFC 6266](https://datatracker.ietf.org/doc/html/rfc6266), or as
 /// [a header for a multipart body](https://mdn.io/Content-Disposition#As_a_header_for_a_multipart_body)
-/// as (re)defined in [RFC 7587](https://tools.ietf.org/html/rfc7578).
+/// as (re)defined in [RFC 7587](https://datatracker.ietf.org/doc/html/rfc7578).
 ///
 /// In a regular HTTP response, the *Content-Disposition* response header is a header indicating if
 /// the content is expected to be displayed *inline* in the browser, that is, as a Web page or as
@@ -299,8 +299,9 @@ impl DispositionParam {
 /// # Security Note
 /// If "filename" parameter is supplied, do not use the file name blindly, check and possibly
 /// change to match local file system conventions if applicable, and do not use directory path
-/// information that may be present. See [RFC 2183](https://tools.ietf.org/html/rfc2183#section-2.3).
-// TODO: private fields and use smallvec
+/// information that may be present.
+/// See [RFC 2183 §2.3](https://datatracker.ietf.org/doc/html/rfc2183#section-2.3).
+// TODO: think about using private fields and smallvec
 #[derive(Clone, Debug, PartialEq)]
 pub struct ContentDisposition {
     /// The disposition type

src/http/header/content_range.rs

@@ -71,7 +71,8 @@ crate::http::header::common_header! {
     }
 }
 
-/// Content-Range, described in [RFC 7233](https://tools.ietf.org/html/rfc7233#section-4.2)
+/// Content-Range header, defined
+/// in [RFC 7233 §4.2](https://datatracker.ietf.org/doc/html/rfc7233#section-4.2)
 ///
 /// # ABNF
 /// ```text

src/http/header/range.rs

@@ -93,7 +93,7 @@ impl ByteRangeSpec {
     /// simply ignore the range header and serve the full entity using a `200
     /// OK` status code.
     ///
-    /// This function closely follows [RFC 7233][1] section 2.1.
+    /// This function closely follows [RFC 7233 §2.1].
     /// As such, it considers ranges to be satisfiable if they meet the
     /// following conditions:
     ///
@@ -112,7 +112,7 @@ impl ByteRangeSpec {
     /// value of last-byte-pos with a value that is one less than the current
     /// length of the selected representation).
     ///
-    /// [1]: https://tools.ietf.org/html/rfc7233
+    /// [RFC 7233 §2.1]: https://datatracker.ietf.org/doc/html/rfc7233
     pub fn to_satisfiable_range(&self, full_length: u64) -> Option<(u64, u64)> {
         // If the full length is zero, there is no satisfiable end-inclusive range.
         if full_length == 0 {