a3s_boot/routing/route/
execution.rs1use super::definition::RouteDefinition;
2use crate::routing::path::{join_paths, route_shape_key, route_specificity};
3use crate::{BootError, BootRequest, BootResponse, ExecutionContext, MiddlewareOutcome, Result};
4
5impl RouteDefinition {
6 pub async fn call(&self, mut request: BootRequest) -> Result<BootResponse> {
7 if !self.method.matches(request.method) {
8 let message = format!("{} {}", request.method.as_str(), request.path);
9 return self
10 .handle_error(
11 self.execution_context(request),
12 BootError::MethodNotAllowed(message),
13 )
14 .await;
15 }
16
17 let params = match self.path_params(&request.path) {
18 Ok(Some(params)) => params,
19 Ok(None) => {
20 let message = format!("{} {}", request.method.as_str(), request.path);
21 return self
22 .handle_error(
23 self.execution_context(request),
24 BootError::NotFound(message),
25 )
26 .await;
27 }
28 Err(error) => {
29 return self
30 .handle_error(self.execution_context(request), error)
31 .await;
32 }
33 };
34 request = request.with_path_params(params);
35 let host_params = match self.host_params(request.host()) {
36 Ok(Some(params)) => params,
37 Ok(None) => {
38 let message = format!("{} {}", request.method.as_str(), request.path);
39 return self
40 .handle_error(
41 self.execution_context(request),
42 BootError::NotFound(message),
43 )
44 .await;
45 }
46 Err(error) => {
47 return self
48 .handle_error(self.execution_context(request), error)
49 .await;
50 }
51 };
52 request = request.with_host_params(host_params);
53 if let Some(module_ref) = &self.module_ref {
54 request = request.with_module_ref(module_ref.request_scope());
55 }
56
57 for middleware in &self.middleware {
58 let context_request = request.clone();
59 request = match middleware.handle(request).await {
60 Ok(MiddlewareOutcome::Continue(request)) => request,
61 Ok(MiddlewareOutcome::Respond(response)) => return Ok(response),
62 Err(error) => {
63 return self
64 .handle_error(self.execution_context(context_request), error)
65 .await;
66 }
67 };
68 }
69
70 let context = self.execution_context(request.clone());
71
72 for guard in &self.guards {
73 let can_activate = match guard.inner().can_activate(context.clone()).await {
74 Ok(can_activate) => can_activate,
75 Err(error) => return self.handle_error(context.clone(), error).await,
76 };
77
78 if !can_activate {
79 let message = format!("{} {}", context.method.as_str(), context.request_path);
80 return self
81 .handle_error(context, BootError::Forbidden(message))
82 .await;
83 }
84 }
85
86 for interceptor in &self.interceptors {
87 if let Err(error) = interceptor.inner().before(context.clone()).await {
88 return self.handle_error(context.clone(), error).await;
89 }
90 }
91
92 for pipe in &self.pipes {
93 let context_request = request.clone();
94 request = match pipe.inner().transform(request).await {
95 Ok(request) => request,
96 Err(error) => {
97 return self
98 .handle_error(self.execution_context(context_request), error)
99 .await;
100 }
101 };
102 }
103
104 if self.validation_enabled {
105 for validator in &self.validators {
106 if let Err(error) = validator(&request) {
107 return self
108 .handle_error(self.execution_context(request.clone()), error)
109 .await;
110 }
111 }
112 }
113
114 let mut response = match self.handler.call(request).await {
115 Ok(response) => response,
116 Err(error) => return self.handle_error(context, error).await,
117 };
118
119 for interceptor in self.interceptors.iter().rev() {
120 response = match interceptor.inner().after(context.clone(), response).await {
121 Ok(response) => response,
122 Err(error) => return self.handle_error(context.clone(), error).await,
123 };
124 }
125
126 Ok(response)
127 }
128
129 pub async fn handle(&self, request: BootRequest) -> BootResponse {
131 match self.call(request).await {
132 Ok(response) => response,
133 Err(error) => BootResponse::from_error(&error),
134 }
135 }
136
137 pub(crate) fn matches_path_shape(&self, path: &str) -> bool {
138 self.matches_path(path)
139 }
140
141 pub(crate) fn path_shape_key(&self) -> String {
142 route_shape_key(&self.path)
143 }
144
145 pub(crate) fn path_specificity(&self) -> Vec<u8> {
146 route_specificity(&self.path)
147 }
148
149 fn execution_context(&self, request: BootRequest) -> ExecutionContext {
150 ExecutionContext::new(
151 request,
152 self.path.clone(),
153 self.module_name.clone(),
154 self.controller_prefix.clone(),
155 self.serialization.clone(),
156 self.metadata.clone(),
157 )
158 }
159
160 pub(crate) fn with_prefix(mut self, prefix: &str) -> Result<Self> {
161 self.path = join_paths(prefix, &self.path)?;
162 self.controller_prefix = Some(prefix.trim_end_matches('/').to_string());
163 Ok(self)
164 }
165
166 pub(crate) fn with_path_prefix(mut self, prefix: &str) -> Result<Self> {
167 self.path = join_paths(prefix, &self.path)?;
168 Ok(self)
169 }
170
171 pub(crate) fn with_module_name(mut self, module_name: &str) -> Self {
172 self.module_name = Some(module_name.to_string());
173 self
174 }
175
176 pub(crate) fn with_module_ref(mut self, module_ref: crate::ModuleRef) -> Self {
177 self.module_ref = Some(module_ref);
178 self
179 }
180
181 pub(crate) fn with_default_module_ref(mut self, module_ref: crate::ModuleRef) -> Self {
182 if self.module_ref.is_none() {
183 self.module_ref = Some(module_ref);
184 }
185 self
186 }
187
188 async fn handle_error(
189 &self,
190 context: ExecutionContext,
191 error: BootError,
192 ) -> Result<BootResponse> {
193 for filter in self.filters.iter().rev() {
194 if let Some(response) = filter
195 .inner()
196 .catch(context.clone(), error.clone_for_filter())
197 .await?
198 {
199 return Ok(response);
200 }
201 }
202 Err(error)
203 }
204}