add OSSClient

src/main.rs

@@ -12,29 +12,28 @@ use crypto::{
 
 pub const OSS_VERB_GET: &str = "GET";
 
-// TODO impl
+// https://help.aliyun.com/document_detail/31952.html
-pub struct OSSConfig {
+pub struct OSSClient {
     pub endpoint: String,
     pub access_key_id: String,
     pub access_key_secret: String,
 }
 
-fn main() {
+impl OSSClient {
-    println!("Hello, world!");
+    pub fn new(endpoint: &str, access_key_id: &str, access_key_secret: &str) -> OSSClient {
+        OSSClient {
+            endpoint: endpoint.to_string(),
+            access_key_id: access_key_id.to_string(),
+            access_key_secret: access_key_secret.to_string(),
+        }
+    }
 
-    println!("{}", SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs());
+    pub fn generate_signed_url(&self, verb: &str, bucket_name: &str, key: &str, expire_in_seconds: u64, is_https: bool) -> String {
-
-    println!("{}", generate_oss_signed_url("shanghai.aliyuncs.com", "aaa", "bbb", "aaaa", "b.txt", 1_u64, true));
-}
-
-// https://help.aliyun.com/document_detail/31952.html
-fn generate_oss_signed_url(endpoint: &str, access_key_id: &str, access_key_secret: &str,
-                            bucket_name: &str, key: &str, expire_in_seconds: u64, is_https: bool) -> String {
         let mut signed_url = String::new();
         signed_url.push_str(if is_https { "https://" } else { "http://" });
         signed_url.push_str(bucket_name);
         signed_url.push_str(".");
-    signed_url.push_str(endpoint);
+        signed_url.push_str(self.endpoint.as_str());
         signed_url.push_str("/");
         signed_url.push_str(key);
     
@@ -44,14 +43,25 @@ fn generate_oss_signed_url(endpoint: &str, access_key_id: &str, access_key_secre
         signed_url.push_str("?Expires=");
         signed_url.push_str(expire_secs.to_string().as_str());
         signed_url.push_str("&OSSAccessKeyId=");
-    signed_url.push_str(&urlencoding::encode(access_key_id));
+        signed_url.push_str(&urlencoding::encode(self.access_key_id.as_str()));
         signed_url.push_str("&Signature=");
     
-    let to_be_signed = get_to_be_signed(OSS_VERB_GET, expire_secs, bucket_name, key);
+        let to_be_signed = get_to_be_signed(verb, expire_secs, bucket_name, key);
-    let signature = to_base64(calc_hmac_sha1(access_key_secret.as_bytes(), to_be_signed.as_bytes()));
+        let signature = to_base64(calc_hmac_sha1(self.access_key_secret.as_bytes(), to_be_signed.as_bytes()));
         signed_url.push_str(&urlencoding::encode(signature.as_str()));
     
         signed_url
+    }
+}
+
+fn main() {
+    println!("Hello, world!");
+
+    println!("{}", SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs());
+
+    let oss_client = OSSClient::new("shanghai.aliyuncs.com", "aaa", "bbb");
+
+    println!("{}", oss_client.generate_signed_url(OSS_VERB_GET, "aaaa", "b.txt", 1_u64, true));
 }
 
 fn to_base64(mac_result: MacResult) -> String {