From 25ad3ca457eb9f5cce125e9bac3dc1368896c4be Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sat, 7 Dec 2019 00:54:43 +0800
Subject: [PATCH] add delete_file,get_file_content,put_file_content

---
 src/main.rs     |  2 +-
 src/oss_util.rs | 24 ++++++++++++++++++++++--
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 96bbc7a..eadbcea 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -31,7 +31,7 @@ fn main() -> XResult<()> {
     println!("Hello, world!");
     println!("{}", SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs());
 
-    zip_util::zip_file("hello.txt", "aa.zip")?;
+    // zip_util::zip_file("hello.txt", "aa.zip")?;
 
     // let openpgp_client = OpenPGPTool::from_file("sample.gpg")?;
     // openpgp_client.encrypt_file("a", "b.asc", true)?;
diff --git a/src/oss_util.rs b/src/oss_util.rs
index 07dc78d..676a670 100644
--- a/src/oss_util.rs
+++ b/src/oss_util.rs
@@ -15,6 +15,7 @@ use reqwest::Response;
 
 pub const OSS_VERB_GET: &str = "GET";
 pub const OSS_VERB_PUT: &str = "PUT";
+pub const OSS_VERB_DELETE: &str = "DELETE";
 
 // https://help.aliyun.com/document_detail/31952.html
 pub struct OSSClient<'a> {
@@ -37,6 +38,23 @@ impl<'a> OSSClient<'a> {
         Ok(client.put(&self.generate_signed_put_url(bucket_name, key, expire_in_seconds)).body(file).send()?)
     }
 
+    pub fn delete_file(&self, bucket_name: &str, key: &str) -> XResult<Response> {
+        let delete_url = self.generate_signed_delete_url(bucket_name, key, 30_u64);
+        let client = reqwest::Client::new();
+        Ok(client.delete(&delete_url).send()?)
+    }
+
+    pub fn get_file_content(&self, bucket_name: &str, key: &str) -> XResult<String> {
+        let get_url = self.generate_signed_get_url(bucket_name, key, 30_u64);
+        Ok(reqwest::get(&get_url)?.text()?)
+    }
+
+    pub fn put_file_content(&self, bucket_name: &str, key: &str, content: &str) -> XResult<Response> {
+        let put_url = self.generate_signed_put_url(bucket_name, key, 30_u64);
+        let client = reqwest::Client::new();
+        Ok(client.put(&put_url).body(content.as_bytes().to_vec()).send()?)
+    }
+
     pub fn generate_signed_put_url(&self, bucket_name: &str, key: &str, expire_in_seconds: u64) -> String {
         self.generate_signed_url(OSS_VERB_PUT, bucket_name, key, expire_in_seconds, true)
     }
@@ -45,6 +63,10 @@ impl<'a> OSSClient<'a> {
         self.generate_signed_url(OSS_VERB_GET, bucket_name, key, expire_in_seconds, true)
     }
 
+    pub fn generate_signed_delete_url(&self, bucket_name: &str, key: &str, expire_in_seconds: u64) -> String {
+        self.generate_signed_url(OSS_VERB_DELETE, bucket_name, key, expire_in_seconds, true)
+    }
+
     pub fn generate_signed_url(&self, verb: &str, bucket_name: &str, key: &str, expire_in_seconds: u64, is_https: bool) -> String {
         let mut signed_url = String::with_capacity(1024);
         signed_url.push_str(if is_https { "https://" } else { "http://" });
@@ -101,7 +123,5 @@ fn get_current_secs() -> u64 {
     SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs()
 }
 
-// TODO read/write content from/to url
-
 // use sync meta.txt file ?
 // record valid files ...