actix/actix-extras
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Code Issues Releases Wiki Activity

do not use regset for route recognition

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This commit is contained in:
Nikolay Kim 2018-02-21 14:31:22 -08:00
parent 5634e5794f
commit fd56e5dc82
4 changed files with 102 additions and 122 deletions
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4
src/application.rs
View File

@ -241,7 +241,7 @@ impl<S> Application<S> where S: 'static {
let mut resource = Resource::default();
f(&mut resource);
let pattern = Pattern::new(resource.get_name(), path, "^/");
let pattern = Pattern::new(resource.get_name(), path);
if parts.resources.contains_key(&pattern) {
panic!("Resource {:?} is registered.", path);
}
@ -305,7 +305,7 @@ impl<S> Application<S> where S: 'static {
panic!("External resource {:?} is registered.", name.as_ref());
}
parts.external.insert(
String::from(name.as_ref()), Pattern::new(name.as_ref(), url.as_ref(), "^/"));
String::from(name.as_ref()), Pattern::new(name.as_ref(), url.as_ref()));
}
self
}

8
src/httprequest.rs
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@ -884,7 +884,7 @@ mod tests {
let mut resource = Resource::<()>::default();
resource.name("index");
let mut map = HashMap::new();
map.insert(Pattern::new("index", "/{key}/", "^/"), Some(resource));
map.insert(Pattern::new("index", "/{key}/"), Some(resource));
let (router, _) = Router::new("", ServerSettings::default(), map);
assert!(router.recognize(&mut req).is_some());
@ -995,7 +995,7 @@ mod tests {
let mut resource = Resource::<()>::default();
resource.name("index");
let mut map = HashMap::new();
map.insert(Pattern::new("index", "/user/{name}.{ext}", "^/"), Some(resource));
map.insert(Pattern::new("index", "/user/{name}.{ext}"), Some(resource));
let (router, _) = Router::new("/", ServerSettings::default(), map);
assert!(router.has_route("/user/test.html"));
assert!(!router.has_route("/test/unknown"));
@ -1020,7 +1020,7 @@ mod tests {
let mut resource = Resource::<()>::default();
resource.name("index");
let mut map = HashMap::new();
map.insert(Pattern::new("index", "/user/{name}.{ext}", "^/"), Some(resource));
map.insert(Pattern::new("index", "/user/{name}.{ext}"), Some(resource));
let (router, _) = Router::new("/prefix/", ServerSettings::default(), map);
assert!(router.has_route("/user/test.html"));
assert!(!router.has_route("/prefix/user/test.html"));
@ -1037,7 +1037,7 @@ mod tests {
let mut resource = Resource::<()>::default();
resource.name("index");
let mut map = HashMap::new();
map.insert(Pattern::new("youtube", "https://youtube.com/watch/{video_id}", "^/"), None);
map.insert(Pattern::new("youtube", "https://youtube.com/watch/{video_id}"), None);
let (router, _) = Router::new::<()>("", ServerSettings::default(), map);
assert!(!router.has_route("https://youtube.com/watch/unknown"));

4
src/middleware/logger.rs
View File

@ -14,8 +14,8 @@ use middleware::{Middleware, Started, Finished};
/// `Middleware` for logging request and response info to the terminal.
/// `Logger` middleware uses standard log crate to log information. You should
/// enable logger for *actix_web* package to see access log.
/// ([env_logger](https://docs.rs/env_logger/*/env_logger/) or similar)
/// enable logger for `actix_web` package to see access log.
/// ([`env_logger`](https://docs.rs/env_logger/*/env_logger/) or similar)
///
/// ## Usage
///

208
src/router.rs
View File

@ -3,9 +3,10 @@ use std::rc::Rc;
use std::hash::{Hash, Hasher};
use std::collections::HashMap;
use regex::{Regex, RegexSet, escape};
use regex::{Regex, escape};
use error::UrlGenerationError;
use param::Params;
use resource::Resource;
use httprequest::HttpRequest;
use server::ServerSettings;
@ -17,11 +18,9 @@ pub struct Router(Rc<Inner>);
struct Inner {
prefix: String,
prefix_len: usize,
regset: RegexSet,
named: HashMap<String, (Pattern, bool)>,
patterns: Vec<Pattern>,
srv: ServerSettings,
hasroutes: bool,
}
impl Router {
@ -34,7 +33,6 @@ impl Router {
let mut named = HashMap::new();
let mut patterns = Vec::new();
let mut resources = Vec::new();
let mut paths = Vec::new();
for (pattern, resource) in map {
if !pattern.name().is_empty() {
@ -43,7 +41,6 @@ impl Router {
}
if let Some(resource) = resource {
paths.push(pattern.pattern().to_owned());
patterns.push(pattern);
resources.push(resource);
}
@ -53,10 +50,8 @@ impl Router {
(Router(Rc::new(
Inner{ prefix: prefix,
prefix_len: len,
regset: RegexSet::new(&paths).unwrap(),
named: named,
patterns: patterns,
hasroutes: !paths.is_empty(),
srv: settings })), resources)
}
@ -74,28 +69,18 @@ impl Router {
/// Query for matched resource
pub fn recognize<S>(&self, req: &mut HttpRequest<S>) -> Option<usize> {
if !self.0.hasroutes { return None }
let mut idx = None;
{
if self.0.prefix_len > req.path().len() {
return None
}
let path = &req.path()[self.0.prefix_len..];
if path.is_empty() {
if let Some(i) = self.0.regset.matches("/").into_iter().next() {
idx = Some(i);
}
} else if let Some(i) = self.0.regset.matches(path).into_iter().next() {
idx = Some(i);
}
if self.0.prefix_len > req.path().len() {
return None
}
let path: &str = unsafe{mem::transmute(&req.path()[self.0.prefix_len..])};
let route_path = if path.is_empty() { "/" } else { path };
if let Some(idx) = idx {
self.0.patterns[idx].update_match_info(req, self.0.prefix_len);
return Some(idx)
} else {
None
for (idx, pattern) in self.0.patterns.iter().enumerate() {
if pattern.match_with_params(route_path, req.match_info_mut()) {
return Some(idx)
}
}
None
}
/// Check if application contains matching route.
@ -105,12 +90,12 @@ impl Router {
/// following path would be recognizable `/test/name` but `has_route()` call
/// would return `false`.
pub fn has_route(&self, path: &str) -> bool {
if path.is_empty() {
if self.0.regset.matches("/").into_iter().next().is_some() {
let path = if path.is_empty() { "/" } else { path };
for pattern in &self.0.patterns {
if pattern.is_match(path) {
return true
}
} else if self.0.regset.matches(path).into_iter().next().is_some() {
return true
}
false
}
@ -148,12 +133,17 @@ enum PatternElement {
Var(String),
}
#[derive(Clone)]
enum PatternType {
Static(String),
Dynamic(Regex, Vec<String>),
}
#[derive(Clone)]
pub struct Pattern {
re: Regex,
tp: PatternType,
name: String,
pattern: String,
names: Vec<String>,
elements: Vec<PatternElement>,
}
@ -161,22 +151,26 @@ impl Pattern {
/// Parse path pattern and create new `Pattern` instance.
///
/// Panics if path pattern is wrong.
pub fn new(name: &str, path: &str, starts: &str) -> Self {
let (pattern, elements) = Pattern::parse(path, starts);
pub fn new(name: &str, path: &str) -> Self {
let (pattern, elements, is_dynamic) = Pattern::parse(path);
let re = match Regex::new(&pattern) {
Ok(re) => re,
Err(err) => panic!("Wrong path pattern: \"{}\" {}", path, err)
let tp = if is_dynamic {
let re = match Regex::new(&pattern) {
Ok(re) => re,
Err(err) => panic!("Wrong path pattern: \"{}\" {}", path, err)
};
let names = re.capture_names()
.filter_map(|name| name.map(|name| name.to_owned()))
.collect();
PatternType::Dynamic(re, names)
} else {
PatternType::Static(pattern.clone())
};
let names = re.capture_names()
.filter_map(|name| name.map(|name| name.to_owned()))
.collect();
Pattern {
re: re,
tp: tp,
name: name.into(),
pattern: pattern,
names: names,
elements: elements,
}
}
@ -191,44 +185,33 @@ impl Pattern {
&self.pattern
}
/// Extract pattern parameters from the text
// This method unsafe internally, assumption that Pattern instance lives
// longer than `req`
pub fn update_match_info<S>(&self, req: &mut HttpRequest<S>, prefix: usize) {
if !self.names.is_empty() {
let text: &str = unsafe{ mem::transmute(&req.path()[prefix..]) };
if let Some(captures) = self.re.captures(text) {
let mut idx = 0;
for capture in captures.iter() {
if let Some(ref m) = capture {
if idx != 0 {
req.match_info_mut().add(
self.names[idx-1].as_str(), m.as_str());
}
idx += 1;
}
}
};
pub fn is_match(&self, path: &str) -> bool {
match self.tp {
PatternType::Static(ref s) => s == path,
PatternType::Dynamic(ref re, _) => re.is_match(path),
}
}
/// Extract pattern parameters from the text
pub fn get_match_info<'a>(&self, text: &'a str) -> HashMap<&str, &'a str> {
let mut info = HashMap::new();
if !self.names.is_empty() {
if let Some(captures) = self.re.captures(text) {
let mut idx = 0;
for capture in captures.iter() {
if let Some(ref m) = capture {
if idx != 0 {
info.insert(self.names[idx-1].as_str(), m.as_str());
pub fn match_with_params<'a>(&'a self, path: &'a str, params: &'a mut Params<'a>) -> bool {
match self.tp {
PatternType::Static(ref s) => s == path,
PatternType::Dynamic(ref re, ref names) => {
if let Some(captures) = re.captures(path) {
let mut idx = 0;
for capture in captures.iter() {
if let Some(ref m) = capture {
if idx != 0 {
params.add(names[idx-1].as_str(), m.as_str());
}
idx += 1;
}
idx += 1;
}
true
} else {
false
}
};
}
}
info
}
/// Build pattern path.
@ -257,15 +240,16 @@ impl Pattern {
Ok(path)
}
fn parse(pattern: &str, starts: &str) -> (String, Vec<PatternElement>) {
fn parse(pattern: &str) -> (String, Vec<PatternElement>, bool) {
const DEFAULT_PATTERN: &str = "[^/]+";
let mut re = String::from(starts);
let mut re = String::from("/");
let mut el = String::new();
let mut in_param = false;
let mut in_param_pattern = false;
let mut param_name = String::new();
let mut param_pattern = String::from(DEFAULT_PATTERN);
let mut is_dynamic = false;
let mut elems = Vec::new();
for (index, ch) in pattern.chars().enumerate() {
@ -299,6 +283,7 @@ impl Pattern {
}
} else if ch == '{' {
in_param = true;
is_dynamic = true;
elems.push(PatternElement::Str(el.clone()));
el.clear();
} else {
@ -307,8 +292,11 @@ impl Pattern {
}
}
re.push('$');
(re, elems)
if is_dynamic {
re.insert(0, '^');
re.push('$');
}
(re, elems, is_dynamic)
}
}
@ -329,21 +317,20 @@ impl Hash for Pattern {
#[cfg(test)]
mod tests {
use super::*;
use regex::Regex;
use test::TestRequest;
#[test]
fn test_recognizer() {
let mut routes = HashMap::new();
routes.insert(Pattern::new("", "/name", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}/index.html", "^/"),
routes.insert(Pattern::new("", "/name"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}/index.html"),
Some(Resource::default()));
routes.insert(Pattern::new("", "/file/{file}.{ext}", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/v{val}/{val2}/index.html", "^/"),
routes.insert(Pattern::new("", "/file/{file}.{ext}"), Some(Resource::default()));
routes.insert(Pattern::new("", "/v{val}/{val2}/index.html"),
Some(Resource::default()));
routes.insert(Pattern::new("", "/v/{tail:.*}", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "{test}/index.html", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/v/{tail:.*}"), Some(Resource::default()));
routes.insert(Pattern::new("", "{test}/index.html"), Some(Resource::default()));
let (rec, _) = Router::new::<()>("", ServerSettings::default(), routes);
let mut req = TestRequest::with_uri("/name").finish();
@ -381,8 +368,8 @@ mod tests {
#[test]
fn test_recognizer_with_prefix() {
let mut routes = HashMap::new();
routes.insert(Pattern::new("", "/name", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}"), Some(Resource::default()));
let (rec, _) = Router::new::<()>("/test", ServerSettings::default(), routes);
let mut req = TestRequest::with_uri("/name").finish();
@ -398,8 +385,8 @@ mod tests {
// same patterns
let mut routes = HashMap::new();
routes.insert(Pattern::new("", "/name", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}", "^/"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name"), Some(Resource::default()));
routes.insert(Pattern::new("", "/name/{val}"), Some(Resource::default()));
let (rec, _) = Router::new::<()>("/test2", ServerSettings::default(), routes);
let mut req = TestRequest::with_uri("/name").finish();
@ -408,61 +395,54 @@ mod tests {
assert!(rec.recognize(&mut req).is_some());
}
fn assert_parse(pattern: &str, expected_re: &str) -> Regex {
let (re_str, _) = Pattern::parse(pattern, "^/");
assert_eq!(&*re_str, expected_re);
Regex::new(&re_str).unwrap()
}
#[test]
fn test_parse_static() {
let re = assert_parse("/", r"^/$");
let re = Pattern::new("test", "/");
assert!(re.is_match("/"));
assert!(!re.is_match("/a"));
let re = assert_parse("/name", r"^/name$");
let re = Pattern::new("test", "/name");
assert!(re.is_match("/name"));
assert!(!re.is_match("/name1"));
assert!(!re.is_match("/name/"));
assert!(!re.is_match("/name~"));
let re = assert_parse("/name/", r"^/name/$");
let re = Pattern::new("test", "/name/");
assert!(re.is_match("/name/"));
assert!(!re.is_match("/name"));
assert!(!re.is_match("/name/gs"));
let re = assert_parse("/user/profile", r"^/user/profile$");
let re = Pattern::new("test", "/user/profile");
assert!(re.is_match("/user/profile"));
assert!(!re.is_match("/user/profile/profile"));
}
#[test]
fn test_parse_param() {
let re = assert_parse("/user/{id}", r"^/user/(?P<id>[^/]+)$");
let mut req = HttpRequest::default();
let re = Pattern::new("test", "/user/{id}");
assert!(re.is_match("/user/profile"));
assert!(re.is_match("/user/2345"));
assert!(!re.is_match("/user/2345/"));
assert!(!re.is_match("/user/2345/sdg"));
let captures = re.captures("/user/profile").unwrap();
assert_eq!(captures.get(1).unwrap().as_str(), "profile");
assert_eq!(captures.name("id").unwrap().as_str(), "profile");
req.match_info_mut().clear();
assert!(re.match_with_params("/user/profile", req.match_info_mut()));
assert_eq!(req.match_info().get("id").unwrap(), "profile");
let captures = re.captures("/user/1245125").unwrap();
assert_eq!(captures.get(1).unwrap().as_str(), "1245125");
assert_eq!(captures.name("id").unwrap().as_str(), "1245125");
req.match_info_mut().clear();
assert!(re.match_with_params("/user/1245125", req.match_info_mut()));
assert_eq!(req.match_info().get("id").unwrap(), "1245125");
let re = assert_parse(
"/v{version}/resource/{id}",
r"^/v(?P<version>[^/]+)/resource/(?P<id>[^/]+)$",
);
let re = Pattern::new("test", "/v{version}/resource/{id}");
assert!(re.is_match("/v1/resource/320120"));
assert!(!re.is_match("/v/resource/1"));
assert!(!re.is_match("/resource"));
let captures = re.captures("/v151/resource/adahg32").unwrap();
assert_eq!(captures.get(1).unwrap().as_str(), "151");
assert_eq!(captures.name("version").unwrap().as_str(), "151");
assert_eq!(captures.name("id").unwrap().as_str(), "adahg32");
req.match_info_mut().clear();
assert!(re.match_with_params("/v151/resource/adahg32", req.match_info_mut()));
assert_eq!(req.match_info().get("version").unwrap(), "151");
assert_eq!(req.match_info().get("id").unwrap(), "adahg32");
}
}