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checks nested scopes in has_resource()

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This commit is contained in:
Nikolay Kim 2018-07-16 11:33:29 +06:00
parent 22385505a3
commit 2dd57a48d6
5 changed files with 143 additions and 59 deletions
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4
CHANGES.md
View file

@ -1,10 +1,10 @@
# Changes
## [0.7.0] - 2018-07-10
## [0.7.0] - 2018-07-17
### Added
* Add `.has_prefixed_route()` method to `router::RouteInfo` for route matching with prefix awareness
* Add `.has_prefixed_resource()` method to `router::ResourceInfo` for route matching with prefix awareness
* Add `HttpMessage::readlines()` for reading line by line.

10
src/helpers.rs
View file

@ -92,7 +92,7 @@ impl<S> Handler<S> for NormalizePath {
// merge slashes
let p = self.re_merge.replace_all(req.path(), "/");
if p.len() != req.path().len() {
if req.resource().has_prefixed_route(p.as_ref()) {
if req.resource().has_prefixed_resource(p.as_ref()) {
let p = if !query.is_empty() {
p + "?" + query
} else {
@ -105,7 +105,7 @@ impl<S> Handler<S> for NormalizePath {
// merge slashes and append trailing slash
if self.append && !p.ends_with('/') {
let p = p.as_ref().to_owned() + "/";
if req.resource().has_prefixed_route(&p) {
if req.resource().has_prefixed_resource(&p) {
let p = if !query.is_empty() {
p + "?" + query
} else {
@ -120,7 +120,7 @@ impl<S> Handler<S> for NormalizePath {
// try to remove trailing slash
if p.ends_with('/') {
let p = p.as_ref().trim_right_matches('/');
if req.resource().has_prefixed_route(p) {
if req.resource().has_prefixed_resource(p) {
let mut req = HttpResponse::build(self.redirect);
return if !query.is_empty() {
req.header(
@ -135,7 +135,7 @@ impl<S> Handler<S> for NormalizePath {
} else if p.ends_with('/') {
// try to remove trailing slash
let p = p.as_ref().trim_right_matches('/');
if req.resource().has_prefixed_route(p) {
if req.resource().has_prefixed_resource(p) {
let mut req = HttpResponse::build(self.redirect);
return if !query.is_empty() {
req.header(
@ -151,7 +151,7 @@ impl<S> Handler<S> for NormalizePath {
// append trailing slash
if self.append && !req.path().ends_with('/') {
let p = req.path().to_owned() + "/";
if req.resource().has_prefixed_route(&p) {
if req.resource().has_prefixed_resource(&p) {
let p = if !query.is_empty() {
p + "?" + query
} else {

28
src/httprequest.rs
View file

@ -436,10 +436,10 @@ mod tests {
router.register_resource(resource);
let info = router.default_route_info();
assert!(info.has_route("/user/test.html"));
assert!(info.has_prefixed_route("/user/test.html"));
assert!(!info.has_route("/test/unknown"));
assert!(!info.has_prefixed_route("/test/unknown"));
assert!(info.has_resource("/user/test.html"));
assert!(info.has_prefixed_resource("/user/test.html"));
assert!(!info.has_resource("/test/unknown"));
assert!(!info.has_prefixed_resource("/test/unknown"));
let req = TestRequest::with_header(header::HOST, "www.rust-lang.org")
.finish_with_router(router);
@ -468,10 +468,10 @@ mod tests {
let mut info = router.default_route_info();
info.set_prefix(7);
assert!(info.has_route("/user/test.html"));
assert!(!info.has_prefixed_route("/user/test.html"));
assert!(!info.has_route("/prefix/user/test.html"));
assert!(info.has_prefixed_route("/prefix/user/test.html"));
assert!(info.has_resource("/user/test.html"));
assert!(!info.has_prefixed_resource("/user/test.html"));
assert!(!info.has_resource("/prefix/user/test.html"));
assert!(info.has_prefixed_resource("/prefix/user/test.html"));
let req = TestRequest::with_uri("/prefix/test")
.prefix(7)
@ -493,10 +493,10 @@ mod tests {
let mut info = router.default_route_info();
info.set_prefix(7);
assert!(info.has_route("/index.html"));
assert!(!info.has_prefixed_route("/index.html"));
assert!(!info.has_route("/prefix/index.html"));
assert!(info.has_prefixed_route("/prefix/index.html"));
assert!(info.has_resource("/index.html"));
assert!(!info.has_prefixed_resource("/index.html"));
assert!(!info.has_resource("/prefix/index.html"));
assert!(info.has_prefixed_resource("/prefix/index.html"));
let req = TestRequest::with_uri("/prefix/test")
.prefix(7)
@ -518,8 +518,8 @@ mod tests {
);
let info = router.default_route_info();
assert!(!info.has_route("https://youtube.com/watch/unknown"));
assert!(!info.has_prefixed_route("https://youtube.com/watch/unknown"));
assert!(!info.has_resource("https://youtube.com/watch/unknown"));
assert!(!info.has_prefixed_resource("https://youtube.com/watch/unknown"));
let req = TestRequest::default().finish_with_router(router);
let url = req.url_for("youtube", &["oHg5SJYRHA0"]);

156
src/router.rs
View file

@ -37,7 +37,7 @@ enum ResourceItem<S> {
/// Interface for application router.
pub struct Router<S> {
defs: Rc<Inner>,
rmap: Rc<ResourceMap>,
patterns: Vec<ResourcePattern<S>>,
resources: Vec<ResourceItem<S>>,
default: Option<DefaultResource<S>>,
@ -46,7 +46,7 @@ pub struct Router<S> {
/// Information about current resource
#[derive(Clone)]
pub struct ResourceInfo {
router: Rc<Inner>,
rmap: Rc<ResourceMap>,
resource: ResourceId,
params: Params,
prefix: u16,
@ -57,7 +57,7 @@ impl ResourceInfo {
#[inline]
pub fn name(&self) -> &str {
if let ResourceId::Normal(idx) = self.resource {
self.router.patterns[idx as usize].name()
self.rmap.patterns[idx as usize].0.name()
} else {
""
}
@ -67,7 +67,7 @@ impl ResourceInfo {
#[inline]
pub fn rdef(&self) -> Option<&ResourceDef> {
if let ResourceId::Normal(idx) = self.resource {
Some(&self.router.patterns[idx as usize])
Some(&self.rmap.patterns[idx as usize].0)
} else {
None
}
@ -111,7 +111,7 @@ impl ResourceInfo {
U: IntoIterator<Item = I>,
I: AsRef<str>,
{
if let Some(pattern) = self.router.named.get(name) {
if let Some(pattern) = self.rmap.named.get(name) {
let path =
pattern.resource_path(elements, &req.path()[..(self.prefix as usize)])?;
if path.starts_with('/') {
@ -130,24 +130,17 @@ impl ResourceInfo {
}
}
/// Check if application contains matching route.
/// Check if application contains matching resource.
///
/// This method does not take `prefix` into account.
/// For example if prefix is `/test` and router contains route `/name`,
/// following path would be recognizable `/test/name` but `has_route()` call
/// following path would be recognizable `/test/name` but `has_resource()` call
/// would return `false`.
pub fn has_route(&self, path: &str) -> bool {
let path = if path.is_empty() { "/" } else { path };
for pattern in &self.router.patterns {
if pattern.is_match(path) {
return true;
}
}
false
pub fn has_resource(&self, path: &str) -> bool {
self.rmap.has_resource(path)
}
/// Check if application contains matching route.
/// Check if application contains matching resource.
///
/// This method does take `prefix` into account
/// but behaves like `has_route` in case `prefix` is not set in the router.
@ -157,18 +150,35 @@ impl ResourceInfo {
/// would return `true`.
/// It will not match against prefix in case it's not given. For example for `/name`
/// with a `/test` prefix would return `false`
pub fn has_prefixed_route(&self, path: &str) -> bool {
pub fn has_prefixed_resource(&self, path: &str) -> bool {
let prefix = self.prefix as usize;
if prefix >= path.len() {
return false;
}
self.has_route(&path[prefix..])
self.rmap.has_resource(&path[prefix..])
}
}
struct Inner {
pub(crate) struct ResourceMap {
named: HashMap<String, ResourceDef>,
patterns: Vec<ResourceDef>,
patterns: Vec<(ResourceDef, Option<Rc<ResourceMap>>)>,
}
impl ResourceMap {
pub fn has_resource(&self, path: &str) -> bool {
let path = if path.is_empty() { "/" } else { path };
for (pattern, rmap) in &self.patterns {
if let Some(ref rmap) = rmap {
if let Some(plen) = pattern.is_prefix_match(path) {
return rmap.has_resource(&path[plen..]);
}
} else if pattern.is_match(path) {
return true;
}
}
false
}
}
impl<S: 'static> Default for Router<S> {
@ -180,7 +190,7 @@ impl<S: 'static> Default for Router<S> {
impl<S: 'static> Router<S> {
pub(crate) fn new() -> Self {
Router {
defs: Rc::new(Inner {
rmap: Rc::new(ResourceMap {
named: HashMap::new(),
patterns: Vec::new(),
}),
@ -195,7 +205,7 @@ impl<S: 'static> Router<S> {
ResourceInfo {
params,
prefix: 0,
router: self.defs.clone(),
rmap: self.rmap.clone(),
resource: ResourceId::Normal(idx),
}
}
@ -208,7 +218,7 @@ impl<S: 'static> Router<S> {
ResourceInfo {
params,
prefix: 0,
router: self.defs.clone(),
rmap: self.rmap.clone(),
resource: ResourceId::Default,
}
}
@ -217,7 +227,7 @@ impl<S: 'static> Router<S> {
pub(crate) fn default_route_info(&self) -> ResourceInfo {
ResourceInfo {
params: Params::new(),
router: self.defs.clone(),
rmap: self.rmap.clone(),
resource: ResourceId::Default,
prefix: 0,
}
@ -225,18 +235,18 @@ impl<S: 'static> Router<S> {
pub(crate) fn register_resource(&mut self, resource: Resource<S>) {
{
let inner = Rc::get_mut(&mut self.defs).unwrap();
let rmap = Rc::get_mut(&mut self.rmap).unwrap();
let name = resource.get_name();
if !name.is_empty() {
assert!(
!inner.named.contains_key(name),
!rmap.named.contains_key(name),
"Named resource {:?} is registered.",
name
);
inner.named.insert(name.to_owned(), resource.rdef().clone());
rmap.named.insert(name.to_owned(), resource.rdef().clone());
}
inner.patterns.push(resource.rdef().clone());
rmap.patterns.push((resource.rdef().clone(), None));
}
self.patterns
.push(ResourcePattern::Resource(resource.rdef().clone()));
@ -244,10 +254,10 @@ impl<S: 'static> Router<S> {
}
pub(crate) fn register_scope(&mut self, mut scope: Scope<S>) {
Rc::get_mut(&mut self.defs)
Rc::get_mut(&mut self.rmap)
.unwrap()
.patterns
.push(scope.rdef().clone());
.push((scope.rdef().clone(), Some(scope.router().rmap.clone())));
let filters = scope.take_filters();
self.patterns
.push(ResourcePattern::Scope(scope.rdef().clone(), filters));
@ -259,10 +269,10 @@ impl<S: 'static> Router<S> {
filters: Option<Vec<Box<Predicate<S>>>>,
) {
let rdef = ResourceDef::prefix(path);
Rc::get_mut(&mut self.defs)
Rc::get_mut(&mut self.rmap)
.unwrap()
.patterns
.push(rdef.clone());
.push((rdef.clone(), None));
self.resources.push(ResourceItem::Handler(hnd));
self.patterns.push(ResourcePattern::Handler(rdef, filters));
}
@ -298,13 +308,13 @@ impl<S: 'static> Router<S> {
}
pub(crate) fn register_external(&mut self, name: &str, rdef: ResourceDef) {
let inner = Rc::get_mut(&mut self.defs).unwrap();
let rmap = Rc::get_mut(&mut self.rmap).unwrap();
assert!(
!inner.named.contains_key(name),
!rmap.named.contains_key(name),
"Named resource {:?} is registered.",
name
);
inner.named.insert(name.to_owned(), rdef);
rmap.named.insert(name.to_owned(), rdef);
}
pub(crate) fn register_route<T, F, R>(&mut self, path: &str, method: Method, f: F)
@ -406,7 +416,7 @@ impl<S: 'static> Router<S> {
ResourceInfo {
prefix: tail as u16,
params: Params::new(),
router: self.defs.clone(),
rmap: self.rmap.clone(),
resource: ResourceId::Default,
}
}
@ -534,6 +544,54 @@ impl ResourceDef {
}
}
fn is_prefix_match(&self, path: &str) -> Option<usize> {
let plen = path.len();
let path = if path.is_empty() { "/" } else { path };
match self.tp {
PatternType::Static(ref s) => if s == path {
Some(plen)
} else {
None
},
PatternType::Dynamic(ref re, _, len) => {
if let Some(captures) = re.captures(path) {
let mut pos = 0;
let mut passed = false;
for capture in captures.iter() {
if let Some(ref m) = capture {
if !passed {
passed = true;
continue;
}
pos = m.end();
}
}
Some(plen + pos + len)
} else {
None
}
}
PatternType::Prefix(ref s) => {
let len = if path == s {
s.len()
} else if path.starts_with(s)
&& (s.ends_with('/') || path.split_at(s.len()).1.starts_with('/'))
{
if s.ends_with('/') {
s.len() - 1
} else {
s.len()
}
} else {
return None;
};
Some(min(plen, len))
}
}
}
/// Are the given path and parameters a match against this resource?
pub fn match_with_params(&self, req: &Request, plen: usize) -> Option<Params> {
let path = &req.path()[plen..];
@ -588,7 +646,9 @@ impl ResourceDef {
match self.tp {
PatternType::Static(ref s) => if s == path {
Some(Params::with_url(req.url()))
let mut params = Params::with_url(req.url());
params.set_tail(req.path().len() as u16);
Some(params)
} else {
None
},
@ -1008,4 +1068,24 @@ mod tests {
assert_eq!(info.resource, ResourceId::Normal(1));
assert_eq!(info.name(), "r2");
}
#[test]
fn test_has_resource() {
let mut router = Router::<()>::new();
let scope = Scope::new("/test").resource("/name", |_| "done");
router.register_scope(scope);
{
let info = router.default_route_info();
assert!(!info.has_resource("/test"));
assert!(info.has_resource("/test/name"));
}
let scope =
Scope::new("/test2").nested("/test10", |s| s.resource("/name", |_| "done"));
router.register_scope(scope);
let info = router.default_route_info();
assert!(info.has_resource("/test2/test10/name"));
}
}

4
src/scope.rs
View file

@ -73,6 +73,10 @@ impl<S: 'static> Scope<S> {
&self.rdef
}
pub(crate) fn router(&self) -> &Router<S> {
self.router.as_ref()
}
#[inline]
pub(crate) fn take_filters(&mut self) -> Vec<Box<Predicate<S>>> {
mem::replace(&mut self.filters, Vec::new())