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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `file_agent/src/agent.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>agent.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../teaclave_file_agent/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../teaclave_file_agent/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
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</pre><pre class="rust"><code><span class="comment">// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// &quot;License&quot;); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
</span><span class="kw">use </span>futures::future::join_all;
<span class="kw">use </span>futures::TryFutureExt;
<span class="kw">use </span>tokio::io::AsyncWriteExt;
<span class="kw">use </span>tokio_util::codec;
<span class="kw">use </span>url::Url;
<span class="kw">use </span>std::path::{Component, Path, PathBuf};
<span class="kw">use </span>teaclave_types::{FileAgentRequest, HandleFileCommand, HandleFileInfo};
<span class="kw">async fn </span>download_remote_input_to_file(
presigned_url: Url,
dest: <span class="kw">impl </span>AsRef&lt;std::path::Path&gt;,
) -&gt; anyhow::Result&lt;()&gt; {
<span class="kw">let </span><span class="kw-2">mut </span>download = reqwest::get(presigned_url.as_str())
.<span class="kw">await</span><span class="question-mark">?
</span>.error_for_status()<span class="question-mark">?</span>;
<span class="kw">let </span><span class="kw-2">mut </span>outfile = tokio::fs::File::create(dest).<span class="kw">await</span><span class="question-mark">?</span>;
<span class="kw">while let </span><span class="prelude-val">Some</span>(chunk) = download.chunk().<span class="kw">await</span><span class="question-mark">? </span>{
outfile.write_all(<span class="kw-2">&amp;</span>chunk).<span class="kw">await</span><span class="question-mark">?</span>;
}
<span class="comment">// Must flush tokio::io::BufWriter manually.
// It will *not* flush itself automatically when dropped.
</span>outfile.flush().<span class="kw">await</span><span class="question-mark">?</span>;
<span class="prelude-val">Ok</span>(())
}
<span class="kw">async fn </span>copy_file(
src: <span class="kw">impl </span>AsRef&lt;std::path::Path&gt;,
dst: <span class="kw">impl </span>AsRef&lt;std::path::Path&gt;,
) -&gt; anyhow::Result&lt;()&gt; {
tokio::fs::copy(src, dst).<span class="kw">await</span><span class="question-mark">?</span>;
<span class="prelude-val">Ok</span>(())
}
<span class="kw">async fn </span>upload_output_file_to_remote(
src: <span class="kw">impl </span>AsRef&lt;std::path::Path&gt;,
presigned_url: Url,
) -&gt; anyhow::Result&lt;()&gt; {
<span class="kw">let </span>metadata = std::fs::metadata(<span class="kw-2">&amp;</span>src)<span class="question-mark">?</span>;
<span class="kw">let </span>file_len = metadata.len();
<span class="kw">let </span>stream = tokio::fs::File::open(src.as_ref().to_path_buf())
.map_ok(|file| codec::FramedRead::new(file, codec::BytesCodec::new()))
.try_flatten_stream();
<span class="kw">let </span>body = reqwest::Body::wrap_stream(stream);
<span class="kw">let </span>client = reqwest::Client::new();
<span class="kw">let </span>res = client
.put(presigned_url.as_str())
.header(reqwest::header::CONTENT_TYPE, <span class="string">&quot;application/x-binary&quot;</span>)
.header(reqwest::header::CONTENT_LENGTH, file_len.to_string())
.body(body)
.send()
.<span class="kw">await</span><span class="question-mark">?</span>;
<span class="kw">match </span>res.status() {
http::StatusCode::OK =&gt; <span class="prelude-val">Ok</span>(()),
status =&gt; <span class="macro">anyhow::bail!</span>(<span class="string">&quot;{}&quot;</span>, status),
}
}
<span class="kw">async fn </span>handle_download(
info: HandleFileInfo,
fusion_base: <span class="kw">impl </span>AsRef&lt;Path&gt;,
) -&gt; anyhow::Result&lt;()&gt; {
<span class="macro">anyhow::ensure!</span>(
!info.local.exists(),
<span class="string">&quot;[Download] Dest local file: {:?} already exists.&quot;</span>,
info.local
);
<span class="kw">let </span>dst = info.local;
<span class="kw">let </span>remote = info.remote;
<span class="kw">match </span>remote.scheme() {
<span class="string">&quot;https&quot; </span>| <span class="string">&quot;http&quot; </span>=&gt; {
download_remote_input_to_file(remote, dst).<span class="kw">await</span><span class="question-mark">?</span>;
}
<span class="string">&quot;file&quot; </span>=&gt; {
<span class="comment">// Note: For LibOS, the file path must be inside the LibOS&#39;s file system
</span><span class="kw">let </span>src = remote
.to_file_path()
.map_err(|e| <span class="macro">anyhow::anyhow!</span>(<span class="string">&quot;Cannot convert file:// to path: {:?}&quot;</span>, e))<span class="question-mark">?</span>;
<span class="macro">anyhow::ensure!</span>(
src.exists(),
<span class="string">&quot;[Download] Src local file: {:?} doesn&#39;t exist.&quot;</span>,
src
);
copy_file(src, dst).<span class="kw">await</span><span class="question-mark">?</span>;
}
<span class="string">&quot;fusion&quot; </span>=&gt; {
<span class="kw">let </span>path = remote
.to_file_path()
.map_err(|e| <span class="macro">anyhow::anyhow!</span>(<span class="string">&quot;Cannot convert fusion:// to path: {:?}&quot;</span>, e))<span class="question-mark">?</span>;
<span class="kw">let </span>components = path.components().collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<span class="macro">anyhow::ensure!</span>(
(components[<span class="number">0</span>] == Component::RootDir)
&amp;&amp; (components[<span class="number">1</span>] == Component::Normal(<span class="string">&quot;TEACLAVE_FUSION_BASE&quot;</span>.as_ref())),
<span class="string">&quot;[Download] Fusion data format error: {:?}&quot;</span>,
components
);
<span class="kw">let </span>relative_path: PathBuf = components[<span class="number">2</span>..].iter().collect();
<span class="kw">let </span>src: PathBuf = fusion_base.as_ref().join(relative_path);
<span class="macro">anyhow::ensure!</span>(
src.exists(),
<span class="string">&quot;[Download] Src local file: {:?} doesn&#39;t exist.&quot;</span>,
src
);
copy_file(src, dst).<span class="kw">await</span><span class="question-mark">?</span>;
}
<span class="string">&quot;data&quot; </span>=&gt; {
<span class="kw">let </span>data = remote.path().split(<span class="string">&#39;,&#39;</span>).collect::&lt;Vec&lt;<span class="kw-2">&amp;</span>str&gt;&gt;();
<span class="kw">if </span>data.len() == <span class="number">2 </span>&amp;&amp; data[<span class="number">0</span>] == <span class="string">&quot;text/plain;base64&quot; </span>{
<span class="kw">let </span>bytes = base64::decode(data[<span class="number">1</span>])<span class="question-mark">?</span>;
tokio::fs::write(dst, bytes).<span class="kw">await</span><span class="question-mark">?</span>;
} <span class="kw">else </span>{
<span class="macro">anyhow::bail!</span>(<span class="string">&quot;Scheme format not supported&quot;</span>)
}
}
<span class="kw">_ </span>=&gt; <span class="macro">anyhow::bail!</span>(<span class="string">&quot;Scheme not supported&quot;</span>),
}
<span class="prelude-val">Ok</span>(())
}
<span class="kw">async fn </span>handle_upload(info: HandleFileInfo, fusion_base: <span class="kw">impl </span>AsRef&lt;Path&gt;) -&gt; anyhow::Result&lt;()&gt; {
<span class="macro">anyhow::ensure!</span>(
info.local.exists(),
<span class="string">&quot;[Upload] Src local file: {:?} doesn&#39;t exist.&quot;</span>,
info.local
);
<span class="kw">let </span>src = info.local;
<span class="kw">match </span>info.remote.scheme() {
<span class="string">&quot;https&quot; </span>| <span class="string">&quot;http&quot; </span>=&gt; {
upload_output_file_to_remote(src, info.remote).<span class="kw">await</span><span class="question-mark">?</span>;
}
<span class="string">&quot;file&quot; </span>=&gt; {
<span class="kw">let </span>dst = info
.remote
.to_file_path()
.map_err(|e| <span class="macro">anyhow::anyhow!</span>(<span class="string">&quot;Cannot convert to path: {:?}&quot;</span>, e))<span class="question-mark">?</span>;
<span class="macro">anyhow::ensure!</span>(!dst.exists(), <span class="string">&quot;[Upload] Dest local file: {:?} exist.&quot;</span>, dst);
copy_file(src, dst).<span class="kw">await</span><span class="question-mark">?</span>;
}
<span class="string">&quot;fusion&quot; </span>=&gt; {
<span class="kw">let </span>path = info
.remote
.to_file_path()
.map_err(|e| <span class="macro">anyhow::anyhow!</span>(<span class="string">&quot;Cannot convert fusion:// to path: {:?}&quot;</span>, e))<span class="question-mark">?</span>;
<span class="kw">let </span>components = path.components().collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<span class="macro">anyhow::ensure!</span>(
(components[<span class="number">0</span>] == Component::RootDir)
&amp;&amp; (components[<span class="number">1</span>] == Component::Normal(<span class="string">&quot;TEACLAVE_FUSION_BASE&quot;</span>.as_ref())),
<span class="string">&quot;[Upload] Fusion data format error: {:?}&quot;</span>,
components
);
<span class="kw">let </span>relative_path: PathBuf = components[<span class="number">2</span>..].iter().collect();
<span class="kw">let </span>dst: PathBuf = fusion_base.as_ref().join(relative_path);
<span class="macro">anyhow::ensure!</span>(
!dst.exists(),
<span class="string">&quot;[Upload] Dest fusion file: {:?} exists.&quot;</span>,
dst
);
copy_file(src, dst).<span class="kw">await</span><span class="question-mark">?</span>;
}
<span class="kw">_ </span>=&gt; <span class="macro">anyhow::bail!</span>(<span class="string">&quot;Scheme not supported&quot;</span>),
}
<span class="prelude-val">Ok</span>(())
}
<span class="kw">pub fn </span>handle_file_request(bytes: <span class="kw-2">&amp;</span>[u8]) -&gt; anyhow::Result&lt;()&gt; {
<span class="kw">let </span>req: FileAgentRequest = serde_json::from_slice(bytes)<span class="question-mark">?</span>;
<span class="kw">let </span>results = tokio::runtime::Builder::new_multi_thread()
.enable_all()
.build()<span class="question-mark">?
</span>.block_on(<span class="kw">async </span>{
<span class="kw">let </span>fusion_base = req.fusion_base.clone();
<span class="kw">match </span>req.cmd {
HandleFileCommand::Download =&gt; {
<span class="kw">let </span>futures: Vec&lt;<span class="kw">_</span>&gt; = req
.info
.into_iter()
.map(|info| {
<span class="kw">let </span>fusion_base = fusion_base.clone();
tokio::spawn(<span class="kw">async </span>{ handle_download(info, fusion_base).<span class="kw">await </span>})
})
.collect();
join_all(futures).<span class="kw">await
</span>}
HandleFileCommand::Upload =&gt; {
<span class="kw">let </span>futures: Vec&lt;<span class="kw">_</span>&gt; = req
.info
.into_iter()
.map(|info| {
<span class="kw">let </span>fusion_base = fusion_base.clone();
tokio::spawn(<span class="kw">async </span>{ handle_upload(info, fusion_base).<span class="kw">await </span>})
})
.collect();
join_all(futures).<span class="kw">await
</span>}
}
});
<span class="kw">let </span>(task_results, errs): (Vec&lt;<span class="kw">_</span>&gt;, Vec&lt;<span class="kw">_</span>&gt;) = results.into_iter().partition(Result::is_ok);
<span class="macro">debug!</span>(<span class="string">&quot;{:?}, errs: {:?}&quot;</span>, task_results, errs);
<span class="kw">if </span>!errs.is_empty() {
<span class="macro">anyhow::bail!</span>(<span class="string">&quot;Spawned task join error!&quot;</span>);
}
<span class="macro">anyhow::ensure!</span>(
task_results.iter().all(|x| x.as_ref().unwrap().is_ok()),
<span class="macro">format!</span>(<span class="string">&quot;Some handle file task failed {:?}&quot;</span>, task_results)
);
<span class="prelude-val">Ok</span>(())
}
<span class="attribute">#[no_mangle]
#[allow(clippy::not_unsafe_ptr_arg_deref)]
</span><span class="kw">pub extern </span><span class="string">&quot;C&quot; </span><span class="kw">fn </span>ocall_handle_file_request(in_buf: <span class="kw-2">*const </span>u8, in_len: u32) -&gt; u32 {
<span class="kw">let </span>input_buf: <span class="kw-2">&amp;</span>[u8] = <span class="kw">unsafe </span>{ std::slice::from_raw_parts(in_buf, in_len <span class="kw">as </span>usize) };
<span class="kw">match </span>handle_file_request(input_buf) {
<span class="prelude-val">Ok</span>(<span class="kw">_</span>) =&gt; <span class="number">0</span>,
<span class="prelude-val">Err</span>(e) =&gt; {
<span class="macro">log::error!</span>(<span class="string">&quot;error: {:?}. in_buf: {:?}&quot;</span>, e, in_buf);
<span class="number">1
</span>}
}
}
<span class="attribute">#[cfg(test)]
</span><span class="kw">mod </span>tests {
<span class="kw">use super</span>::<span class="kw-2">*</span>;
<span class="kw">use </span>std::io::Write;
<span class="kw">use </span>std::path::PathBuf;
<span class="kw">use </span>url::Url;
<span class="attribute">#[test]
</span><span class="kw">fn </span>test_file_url() {
<span class="kw">let </span>url = Url::parse(<span class="string">&quot;file:///tmp/abc.txt&quot;</span>).unwrap();
<span class="macro">assert_eq!</span>(url.scheme(), <span class="string">&quot;file&quot;</span>);
<span class="macro">assert_eq!</span>(url.host(), <span class="prelude-val">None</span>);
<span class="macro">assert_eq!</span>(url.path(), <span class="string">&quot;/tmp/abc.txt&quot;</span>);
<span class="kw">let </span>url = Url::parse(<span class="string">&quot;file:///countries/việt nam&quot;</span>).unwrap();
<span class="macro">assert_eq!</span>(url.path(), <span class="string">&quot;/countries/vi%E1%BB%87t%20nam&quot;</span>);
<span class="kw">let </span>file_path = url.to_file_path().unwrap();
<span class="macro">assert_eq!</span>(file_path, PathBuf::from(<span class="string">&quot;/countries/việt nam&quot;</span>));
}
<span class="attribute">#[test]
</span><span class="kw">fn </span>test_get_single_file() {
<span class="kw">let </span>s = <span class="string">&quot;http://localhost:6789/fixtures/functions/mesapy/input.txt&quot;</span>;
<span class="kw">let </span>url = Url::parse(s).unwrap();
<span class="kw">let </span>dest = PathBuf::from(<span class="string">&quot;/tmp/input_test_get_single_file.txt&quot;</span>);
<span class="kw">let </span>info = HandleFileInfo::new(<span class="kw-2">&amp;</span>dest, <span class="kw-2">&amp;</span>url);
<span class="kw">let </span>req = FileAgentRequest::new(HandleFileCommand::Download, <span class="macro">vec!</span>[info], <span class="string">&quot;&quot;</span>);
<span class="kw">let </span>bytes = serde_json::to_vec(<span class="kw-2">&amp;</span>req).unwrap();
handle_file_request(<span class="kw-2">&amp;</span>bytes).unwrap();
std::fs::remove_file(<span class="kw-2">&amp;</span>dest).unwrap();
}
<span class="attribute">#[test]
</span><span class="kw">fn </span>test_put_single_file() {
<span class="kw">let </span>src = PathBuf::from(<span class="string">&quot;/tmp/output_single_test.txt&quot;</span>);
{
<span class="kw">let </span><span class="kw-2">mut </span>file = std::fs::File::create(<span class="kw-2">&amp;</span>src).unwrap();
file.write_all(<span class="string">b&quot;Hello Teaclave Results!&quot;</span>).unwrap();
}
<span class="kw">let </span>s = <span class="string">&quot;http://localhost:6789/fixtures/functions/mesapy/result.txt&quot;</span>;
<span class="kw">let </span>url = Url::parse(s).unwrap();
<span class="kw">let </span>info = HandleFileInfo::new(<span class="kw-2">&amp;</span>src, <span class="kw-2">&amp;</span>url);
<span class="kw">let </span>req = FileAgentRequest::new(HandleFileCommand::Upload, <span class="macro">vec!</span>[info], <span class="string">&quot;&quot;</span>);
<span class="kw">let </span>bytes = serde_json::to_vec(<span class="kw-2">&amp;</span>req).unwrap();
handle_file_request(<span class="kw-2">&amp;</span>bytes).unwrap();
std::fs::remove_file(<span class="kw-2">&amp;</span>src).unwrap();
}
<span class="attribute">#[test]
</span><span class="kw">fn </span>test_get_multiple_files() {
<span class="kw">let </span>s = <span class="string">&quot;http://localhost:6789/fixtures/functions/gbdt_training/train.txt&quot;</span>;
<span class="kw">let </span>url = Url::parse(s).unwrap();
<span class="kw">let </span>base = PathBuf::from(<span class="string">&quot;/tmp/file_agent_test_base&quot;</span>);
<span class="kw">let </span>fnames = <span class="macro">vec!</span>[<span class="string">&quot;a.txt&quot;</span>, <span class="string">&quot;b.txt&quot;</span>, <span class="string">&quot;c.txt&quot;</span>, <span class="string">&quot;d.txt&quot;</span>];
std::fs::create_dir_all(<span class="kw-2">&amp;</span>base).unwrap();
<span class="kw">let </span>info_list: Vec&lt;<span class="kw">_</span>&gt; = fnames
.iter()
.map(|fname| HandleFileInfo::new(base.join(fname), <span class="kw-2">&amp;</span>url))
.collect();
<span class="kw">let </span>req = FileAgentRequest::new(HandleFileCommand::Download, info_list, <span class="string">&quot;&quot;</span>);
<span class="kw">let </span>bytes = serde_json::to_vec(<span class="kw-2">&amp;</span>req).unwrap();
handle_file_request(<span class="kw-2">&amp;</span>bytes).unwrap();
std::fs::remove_dir_all(<span class="kw-2">&amp;</span>base).unwrap();
}
<span class="attribute">#[test]
</span><span class="kw">fn </span>test_put_multiple_files() {
<span class="kw">let </span>src = PathBuf::from(<span class="string">&quot;/tmp/output_multiple_test.txt&quot;</span>);
{
<span class="kw">let </span><span class="kw-2">mut </span>file = std::fs::File::create(<span class="kw-2">&amp;</span>src).unwrap();
file.write_all(<span class="string">b&quot;Hello Teaclave Results!&quot;</span>).unwrap();
}
<span class="kw">let </span>s = <span class="string">&quot;http://localhost:6789/fixtures/functions/gbdt_training&quot;</span>;
<span class="kw">let </span>url = Url::parse(s).unwrap();
<span class="kw">let </span>fnames = <span class="macro">vec!</span>[<span class="string">&quot;a.txt&quot;</span>, <span class="string">&quot;b.txt&quot;</span>, <span class="string">&quot;c.txt&quot;</span>, <span class="string">&quot;d.txt&quot;</span>];
<span class="kw">let </span>info_list: Vec&lt;<span class="kw">_</span>&gt; = fnames
.iter()
.map(|fname| {
<span class="kw">let </span><span class="kw-2">mut </span>url = url.clone();
url.path_segments_mut().unwrap().push(fname);
HandleFileInfo::new(<span class="kw-2">&amp;</span>src, <span class="kw-2">&amp;</span>url)
})
.collect();
<span class="kw">let </span>req = FileAgentRequest::new(HandleFileCommand::Upload, info_list, <span class="string">&quot;&quot;</span>);
<span class="kw">let </span>bytes = serde_json::to_vec(<span class="kw-2">&amp;</span>req).unwrap();
handle_file_request(<span class="kw-2">&amp;</span>bytes).unwrap();
std::fs::remove_file(<span class="kw-2">&amp;</span>src).unwrap();
}
<span class="attribute">#[test]
</span><span class="kw">fn </span>test_local_copy_file() {
<span class="kw">let </span>base_str = <span class="string">&quot;/tmp/file_agent_local_copy&quot;</span>;
<span class="kw">let </span>base = PathBuf::from(<span class="kw-2">&amp;</span>base_str);
std::fs::create_dir_all(<span class="kw-2">&amp;</span>base).unwrap();
<span class="kw">let </span>src = base.join(<span class="string">&quot;src.txt&quot;</span>);
{
<span class="kw">let </span><span class="kw-2">mut </span>file = std::fs::File::create(<span class="kw-2">&amp;</span>src).unwrap();
file.write_all(<span class="string">b&quot;Hello Teaclave Results!&quot;</span>).unwrap();
}
<span class="comment">// test local upload
</span><span class="kw">let </span>s = <span class="macro">format!</span>(<span class="string">&quot;file://{}/d1.txt&quot;</span>, base_str);
<span class="kw">let </span>url = Url::parse(<span class="kw-2">&amp;</span>s).unwrap();
<span class="kw">let </span>info = HandleFileInfo::new(<span class="kw-2">&amp;</span>src, <span class="kw-2">&amp;</span>url);
<span class="kw">let </span>req = FileAgentRequest::new(HandleFileCommand::Upload, <span class="macro">vec!</span>[info], <span class="string">&quot;&quot;</span>);
<span class="kw">let </span>bytes = serde_json::to_vec(<span class="kw-2">&amp;</span>req).unwrap();
handle_file_request(<span class="kw-2">&amp;</span>bytes).unwrap();
<span class="comment">// test local download
</span><span class="kw">let </span>dest = base.join(<span class="string">&quot;d2.txt&quot;</span>);
<span class="kw">let </span>info = HandleFileInfo::new(<span class="kw-2">&amp;</span>dest, <span class="kw-2">&amp;</span>url);
<span class="kw">let </span>req = FileAgentRequest::new(HandleFileCommand::Download, <span class="macro">vec!</span>[info], <span class="string">&quot;&quot;</span>);
<span class="kw">let </span>bytes = serde_json::to_vec(<span class="kw-2">&amp;</span>req).unwrap();
handle_file_request(<span class="kw-2">&amp;</span>bytes).unwrap();
std::fs::remove_dir_all(<span class="kw-2">&amp;</span>base).unwrap();
}
<span class="attribute">#[test]
</span><span class="kw">fn </span>test_data_scheme() {
<span class="kw">let </span>url = Url::parse(<span class="string">&quot;data:text/plain;base64,SGVsbG8sIFdvcmxkIQ==&quot;</span>).unwrap();
<span class="kw">let </span>dest = PathBuf::from(<span class="string">&quot;/tmp/input_test_data_scheme.txt&quot;</span>);
<span class="kw">let </span>info = HandleFileInfo::new(<span class="kw-2">&amp;</span>dest, <span class="kw-2">&amp;</span>url);
<span class="kw">let </span>req = FileAgentRequest::new(HandleFileCommand::Download, <span class="macro">vec!</span>[info], <span class="string">&quot;&quot;</span>);
<span class="kw">let </span>bytes = serde_json::to_vec(<span class="kw-2">&amp;</span>req).unwrap();
handle_file_request(<span class="kw-2">&amp;</span>bytes).unwrap();
<span class="macro">assert_eq!</span>(std::fs::read_to_string(<span class="kw-2">&amp;</span>dest).unwrap(), <span class="string">&quot;Hello, World!&quot;</span>);
std::fs::remove_file(<span class="kw-2">&amp;</span>dest).unwrap();
}
}
</code></pre></div>
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