1 files changed, 105 insertions, 0 deletions
diff --git a/crates/shirabe/src/util/http/request_proxy.rs b/crates/shirabe/src/util/http/request_proxy.rs
index 826598f..1405a32 100644
--- a/crates/shirabe/src/util/http/request_proxy.rs
+++ b/crates/shirabe/src/util/http/request_proxy.rs
@@ -1 +1,106 @@
 //! ref: composer/src/Composer/Util/Http/RequestProxy.php
+
+use indexmap::IndexMap;
+use shirabe_php_shim::{
+    curl_version, PhpMixed, CURLAUTH_BASIC, CURL_VERSION_HTTPS_PROXY, CURLOPT_NOPROXY,
+    CURLOPT_PROXY, CURLOPT_PROXY_CAINFO, CURLOPT_PROXY_CAPATH, CURLOPT_PROXYAUTH,
+    CURLOPT_PROXYUSERPWD, InvalidArgumentException,
+};
+
+use crate::downloader::transport_exception::TransportException;
+
+// contextOptions = array{http: array{proxy: string, header?: string, request_fulluri?: bool}}
+type ContextOptions = IndexMap<String, IndexMap<String, PhpMixed>>;
+
+#[derive(Debug)]
+pub struct RequestProxy {
+    context_options: Option<ContextOptions>,
+    status: Option<String>,
+    url: Option<String>,
+    auth: Option<String>,
+}
+
+impl RequestProxy {
+    pub fn new(url: Option<String>, auth: Option<String>, context_options: Option<ContextOptions>, status: Option<String>) -> Self {
+        Self { url, auth, context_options, status }
+    }
+
+    pub fn none() -> Self {
+        Self::new(None, None, None, None)
+    }
+
+    pub fn no_proxy() -> Self {
+        Self::new(None, None, None, Some("excluded by no_proxy".to_string()))
+    }
+
+    pub fn get_context_options(&self) -> Option<&ContextOptions> {
+        self.context_options.as_ref()
+    }
+
+    pub fn get_curl_options(&self, ssl_options: &IndexMap<String, PhpMixed>) -> Result<IndexMap<i64, PhpMixed>, TransportException> {
+        if self.is_secure() && !self.supports_secure_proxy() {
+            return Err(TransportException::new("Cannot use an HTTPS proxy. PHP >= 7.3 and cUrl >= 7.52.0 are required.".to_string()));
+        }
+
+        let mut options: IndexMap<i64, PhpMixed> = IndexMap::new();
+        options.insert(CURLOPT_PROXY, PhpMixed::String(self.url.as_deref().unwrap_or("").to_string()));
+
+        if self.url.is_some() {
+            options.insert(CURLOPT_NOPROXY, PhpMixed::String(String::new()));
+        }
+
+        if let Some(auth) = &self.auth {
+            options.insert(CURLOPT_PROXYAUTH, PhpMixed::Int(CURLAUTH_BASIC));
+            options.insert(CURLOPT_PROXYUSERPWD, PhpMixed::String(auth.clone()));
+        }
+
+        if self.is_secure() {
+            if let Some(cafile) = ssl_options.get("cafile") {
+                options.insert(CURLOPT_PROXY_CAINFO, cafile.clone());
+            }
+            if let Some(capath) = ssl_options.get("capath") {
+                options.insert(CURLOPT_PROXY_CAPATH, capath.clone());
+            }
+        }
+
+        Ok(options)
+    }
+
+    pub fn get_status(&self, format: Option<&str>) -> Result<String, InvalidArgumentException> {
+        if self.status.is_none() {
+            return Ok(String::new());
+        }
+
+        let format = format.unwrap_or("%s");
+        if format.contains("%s") {
+            return Ok(format.replace("%s", self.status.as_deref().unwrap()));
+        }
+
+        Err(InvalidArgumentException {
+            message: "String format specifier is missing".to_string(),
+            code: 0,
+        })
+    }
+
+    pub fn is_excluded_by_no_proxy(&self) -> bool {
+        self.status.is_some() && self.url.is_none()
+    }
+
+    pub fn is_secure(&self) -> bool {
+        self.url.as_deref().unwrap_or("").starts_with("https://")
+    }
+
+    pub fn supports_secure_proxy(&self) -> bool {
+        let version = match curl_version() {
+            None => return false,
+            Some(v) => v,
+        };
+
+        if !shirabe_php_shim::defined("CURL_VERSION_HTTPS_PROXY") {
+            return false;
+        }
+
+        let features = version.get("features").and_then(|v| v.as_int()).unwrap_or(0);
+        (features & CURL_VERSION_HTTPS_PROXY) != 0
+    }
+}