bws_web_server/handlers/
api_handler.rs

1use crate::config::SiteConfig;
2use pingora::http::ResponseHeader;
3use pingora::prelude::*;
4
5pub struct ApiHandler {
6    // Future: Add authentication, rate limiting, etc.
7}
8
9impl ApiHandler {
10    pub fn new() -> Self {
11        Self {}
12    }
13
14    pub async fn handle(&self, session: &mut Session, site: Option<&SiteConfig>) -> Result<()> {
15        let path = session.req_header().uri.path().to_string();
16        let method = session.req_header().method.as_str();
17
18        match (method, path.as_str()) {
19            ("GET", "/api/sites") => self.handle_sites_info(session, site).await,
20            ("GET", "/api/ssl/certificates") => self.handle_ssl_certificates(session, site).await,
21            ("POST", path) if path.starts_with("/api/ssl/certificates/") => {
22                self.handle_ssl_certificate_request(session, site, path)
23                    .await
24            }
25            ("GET", "/api/ssl/status") => self.handle_ssl_status(session, site).await,
26            ("GET", "/api/config") => self.handle_config_info(session, site).await,
27            ("POST", "/api/config/reload") => self.handle_config_reload(session, site).await,
28            _ => self.handle_not_found(session, site).await,
29        }
30    }
31
32    async fn handle_sites_info(
33        &self,
34        session: &mut Session,
35        _site: Option<&SiteConfig>,
36    ) -> Result<()> {
37        // This would need access to the full server config
38        // For now, return a placeholder response
39        let response = serde_json::json!({
40            "sites": [],
41            "total_sites": 0,
42            "message": "Sites information endpoint"
43        });
44
45        self.send_json_response(session, 200, &response).await
46    }
47
48    async fn handle_ssl_certificates(
49        &self,
50        session: &mut Session,
51        _site: Option<&SiteConfig>,
52    ) -> Result<()> {
53        // This would need access to the SSL manager
54        // For now, return a placeholder response
55        let response = serde_json::json!({
56            "certificates": [],
57            "total_certificates": 0,
58            "message": "SSL certificates information endpoint"
59        });
60
61        self.send_json_response(session, 200, &response).await
62    }
63
64    async fn handle_ssl_certificate_request(
65        &self,
66        session: &mut Session,
67        _site: Option<&SiteConfig>,
68        path: &str,
69    ) -> Result<()> {
70        // Extract domain from path
71        let domain = path
72            .strip_prefix("/api/ssl/certificates/")
73            .unwrap_or("unknown");
74
75        let response = serde_json::json!({
76            "message": format!("Certificate request for domain: {}", domain),
77            "domain": domain,
78            "status": "not_implemented"
79        });
80
81        self.send_json_response(session, 501, &response).await
82    }
83
84    async fn handle_ssl_status(
85        &self,
86        session: &mut Session,
87        _site: Option<&SiteConfig>,
88    ) -> Result<()> {
89        let response = serde_json::json!({
90            "ssl_enabled": false,
91            "auto_cert": false,
92            "certificates": [],
93            "renewal_status": "unknown",
94            "message": "SSL status endpoint"
95        });
96
97        self.send_json_response(session, 200, &response).await
98    }
99
100    async fn handle_config_info(
101        &self,
102        session: &mut Session,
103        _site: Option<&SiteConfig>,
104    ) -> Result<()> {
105        let response = serde_json::json!({
106            "server": {
107                "name": "bws-web-server",
108                "version": env!("CARGO_PKG_VERSION")
109            },
110            "message": "Configuration information endpoint"
111        });
112
113        self.send_json_response(session, 200, &response).await
114    }
115
116    async fn handle_config_reload(
117        &self,
118        session: &mut Session,
119        _site: Option<&SiteConfig>,
120    ) -> Result<()> {
121        let response = serde_json::json!({
122            "message": "Configuration reload endpoint",
123            "status": "not_implemented"
124        });
125
126        self.send_json_response(session, 501, &response).await
127    }
128
129    async fn handle_not_found(
130        &self,
131        session: &mut Session,
132        _site: Option<&SiteConfig>,
133    ) -> Result<()> {
134        let response = serde_json::json!({
135            "error": "API endpoint not found",
136            "message": "The requested API endpoint does not exist",
137            "available_endpoints": [
138                "GET /api/sites",
139                "GET /api/ssl/certificates",
140                "POST /api/ssl/certificates/{domain}",
141                "GET /api/ssl/status",
142                "GET /api/config",
143                "POST /api/config/reload"
144            ]
145        });
146
147        self.send_json_response(session, 404, &response).await
148    }
149
150    async fn send_json_response(
151        &self,
152        session: &mut Session,
153        status: u16,
154        data: &serde_json::Value,
155    ) -> Result<()> {
156        let response_body = data.to_string();
157        let response_bytes = response_body.into_bytes();
158
159        let mut header = ResponseHeader::build(status, Some(4))?;
160        header.insert_header("Content-Type", "application/json; charset=utf-8")?;
161        header.insert_header("Content-Length", response_bytes.len().to_string())?;
162        header.insert_header("Cache-Control", "no-cache, no-store, must-revalidate")?;
163        header.insert_header("Pragma", "no-cache")?;
164
165        session
166            .write_response_header(Box::new(header), false)
167            .await?;
168        session
169            .write_response_body(Some(response_bytes.into()), true)
170            .await?;
171
172        Ok(())
173    }
174}
175
176impl Default for ApiHandler {
177    fn default() -> Self {
178        Self::new()
179    }
180}
181
182#[cfg(test)]
183mod tests {
184    use super::*;
185
186    #[test]
187    fn test_api_handler_creation() {
188        let handler = ApiHandler::new();
189        // Basic test that handler can be created
190        assert_eq!(
191            std::mem::size_of_val(&handler),
192            std::mem::size_of::<ApiHandler>()
193        );
194    }
195}