130 lines
4.6 KiB
Rust
130 lines
4.6 KiB
Rust
use std::{
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fs::File,
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time::SystemTime,
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};
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use crypto::{
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mac::{
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Mac,
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MacResult,
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},
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hmac::Hmac,
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sha1::Sha1,
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};
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use reqwest::{
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Response,
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};
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use rust_util::*;
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pub const OSS_VERB_GET: &str = "GET";
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pub const OSS_VERB_PUT: &str = "PUT";
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pub const OSS_VERB_DELETE: &str = "DELETE";
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// https://help.aliyun.com/document_detail/31952.html
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pub struct OSSClient<'a> {
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pub endpoint: &'a str,
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pub access_key_id: &'a str,
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pub access_key_secret: &'a str,
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}
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impl<'a> OSSClient<'a> {
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pub fn new(endpoint: &'a str, access_key_id: &'a str, access_key_secret: &'a str) -> OSSClient<'a> {
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OSSClient {
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endpoint: endpoint,
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access_key_id: access_key_id,
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access_key_secret: access_key_secret,
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}
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}
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pub fn put_file(&self, bucket_name: &str, key: &str, expire_in_seconds: u64, file: File) -> XResult<Response> {
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let client = reqwest::Client::new();
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Ok(client.put(&self.generate_signed_put_url(bucket_name, key, expire_in_seconds)).body(file).send()?)
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}
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pub fn delete_file(&self, bucket_name: &str, key: &str) -> XResult<Response> {
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let delete_url = self.generate_signed_delete_url(bucket_name, key, 30_u64);
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let client = reqwest::Client::new();
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Ok(client.delete(&delete_url).send()?)
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}
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pub fn get_file_content(&self, bucket_name: &str, key: &str) -> XResult<Option<String>> {
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let get_url = self.generate_signed_get_url(bucket_name, key, 30_u64);
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let mut response = reqwest::get(&get_url)?;
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match response.status().as_u16() {
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404_u16 => Ok(None),
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200_u16 => Ok(Some(response.text()?)),
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_ => Err(new_box_ioerror(&format!("Error in read: {}/{}, returns: {:?}", bucket_name, key, response))),
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}
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}
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pub fn put_file_content(&self, bucket_name: &str, key: &str, content: &str) -> XResult<Response> {
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let put_url = self.generate_signed_put_url(bucket_name, key, 30_u64);
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let client = reqwest::Client::new();
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Ok(client.put(&put_url).body(content.as_bytes().to_vec()).send()?)
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}
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pub fn generate_signed_put_url(&self, bucket_name: &str, key: &str, expire_in_seconds: u64) -> String {
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self.generate_signed_url(OSS_VERB_PUT, bucket_name, key, expire_in_seconds, true)
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}
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pub fn generate_signed_get_url(&self, bucket_name: &str, key: &str, expire_in_seconds: u64) -> String {
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self.generate_signed_url(OSS_VERB_GET, bucket_name, key, expire_in_seconds, true)
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}
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pub fn generate_signed_delete_url(&self, bucket_name: &str, key: &str, expire_in_seconds: u64) -> String {
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self.generate_signed_url(OSS_VERB_DELETE, bucket_name, key, expire_in_seconds, true)
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}
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pub fn generate_signed_url(&self, verb: &str, bucket_name: &str, key: &str, expire_in_seconds: u64, is_https: bool) -> String {
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let mut signed_url = String::with_capacity(1024);
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signed_url.push_str(if is_https { "https://" } else { "http://" });
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signed_url.push_str(&format!("{}.{}/{}", bucket_name, self.endpoint, key));
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let current_secs = get_current_secs();
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let expire_secs = current_secs + expire_in_seconds;
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signed_url.push_str("?Expires=");
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signed_url.push_str(expire_secs.to_string().as_str());
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signed_url.push_str("&OSSAccessKeyId=");
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signed_url.push_str(&urlencoding::encode(self.access_key_id));
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signed_url.push_str("&Signature=");
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let to_be_signed = get_to_be_signed(verb, expire_secs, bucket_name, key);
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let signature = to_base64(calc_hmac_sha1(self.access_key_secret.as_bytes(), to_be_signed.as_bytes()));
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signed_url.push_str(&urlencoding::encode(signature.as_str()));
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signed_url
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}
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}
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fn get_to_be_signed(verb: &str, expire_secs: u64, bucket_name: &str, key: &str) -> String {
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let mut to_be_signed = String::with_capacity(512);
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to_be_signed.push_str(verb);
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to_be_signed.push_str("\n");
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to_be_signed.push_str("\n");
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to_be_signed.push_str("\n");
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to_be_signed.push_str(expire_secs.to_string().as_str());
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to_be_signed.push_str("\n");
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to_be_signed.push_str("/");
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to_be_signed.push_str(bucket_name);
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to_be_signed.push_str("/");
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to_be_signed.push_str(key);
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to_be_signed
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}
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fn to_base64(mac_result: MacResult) -> String {
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base64::encode(mac_result.code())
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}
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fn calc_hmac_sha1(key: &[u8], message: &[u8]) -> MacResult {
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let mut hmac = Hmac::new(Sha1::new(), key);
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hmac.input(message);
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hmac.result()
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}
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fn get_current_secs() -> u64 {
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SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs()
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}
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// use sync meta.txt file ?
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// record valid files ...
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