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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 `src/data.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>data.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-6827029ac823cab7.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../static.files/light-ebce58d0a40c3431.css"><link rel="stylesheet" disabled href="../../static.files/dark-f23faae4a2daf9a6.css"><link rel="stylesheet" disabled href="../../static.files/ayu-8af5e100b21cd173.css"><script id="default-settings" ></script><script src="../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../static.files/source-script-5cf2e01a42cc9858.js"></script><script defer src="../../source-files.js"></script><script defer src="../../static.files/main-c55e1eb52e1886b4.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../libmedium/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><span></span><input class="search-input" name="search" aria-label="Run search in the documentation" 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="../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><a href="#1" id="1">1</a>
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</pre><pre class="rust"><code><span class="comment">/*
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||
* Copyright (C) 2021 Aravinth Manivannan <realaravinth@batsense.net>
|
||
*
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||
* This program is free software: you can redistribute it and/or modify
|
||
* it under the terms of the GNU Affero General Public License as
|
||
* published by the Free Software Foundation, either version 3 of the
|
||
* License, or (at your option) any later version.
|
||
*
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||
* This program is distributed in the hope that it will be useful,
|
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
* GNU Affero General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Affero General Public License
|
||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
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||
*/
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||
</span><span class="kw">use </span>std::path::Path;
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<span class="kw">use </span>actix_web::web;
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<span class="kw">use </span>graphql_client::{reqwest::post_graphql, GraphQLQuery};
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<span class="kw">use </span>reqwest::header::USER_AGENT;
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<span class="kw">use </span>reqwest::Client;
|
||
<span class="kw">use </span>serde::{Deserialize, Serialize};
|
||
<span class="kw">use </span>sled::{Db, Tree};
|
||
|
||
<span class="kw">use </span><span class="kw">crate</span>::proxy::StringUtils;
|
||
<span class="kw">use </span><span class="kw">crate</span>::render_html;
|
||
<span class="kw">use </span><span class="kw">crate</span>::SETTINGS;
|
||
|
||
<span class="kw">const </span>POST_CACHE_VERSION: usize = <span class="number">3</span>;
|
||
<span class="kw">const </span>GIST_CACHE_VERSION: usize = <span class="number">1</span>;
|
||
|
||
<span class="attr">#[derive(Clone)]
|
||
</span><span class="kw">pub struct </span>Data {
|
||
<span class="kw">pub </span>client: Client,
|
||
cache: Db,
|
||
<span class="kw">pub </span>posts: Tree,
|
||
<span class="kw">pub </span>gists: Tree,
|
||
}
|
||
|
||
<span class="attr">#[derive(GraphQLQuery)]
|
||
#[graphql(
|
||
schema_path = <span class="string">"schemas/schema.graphql"</span>,
|
||
query_path = <span class="string">"schemas/query.graphql"</span>,
|
||
response_derives = <span class="string">"Debug, Serialize, Deserialize, Clone"
|
||
</span>)]
|
||
</span><span class="kw">pub struct </span>GetPost;
|
||
|
||
<span class="kw">pub type </span>PostResp = get_post::GetPostPost;
|
||
|
||
<span class="kw">pub type </span>AppData = web::Data<Data>;
|
||
|
||
<span class="kw">impl </span>PostResp {
|
||
<span class="kw">pub fn </span>get_subtitle(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>str {
|
||
<span class="self">self</span>.preview_content.as_ref().unwrap().subtitle.as_str()
|
||
}
|
||
}
|
||
|
||
<span class="attr">#[derive(Deserialize, Serialize)]
|
||
</span><span class="kw">pub struct </span>GistContent {
|
||
<span class="kw">pub </span>files: Vec<GistFile>,
|
||
<span class="kw">pub </span>html_url: String,
|
||
}
|
||
|
||
<span class="attr">#[derive(Deserialize, Clone, Serialize)]
|
||
</span><span class="kw">pub struct </span>GistFile {
|
||
<span class="kw">pub </span>file_name: String,
|
||
<span class="kw">pub </span>content: String,
|
||
<span class="kw">pub </span>language: String,
|
||
<span class="kw">pub </span>raw_url: String,
|
||
}
|
||
|
||
<span class="kw">impl </span>GistFile {
|
||
<span class="kw">pub fn </span>get_html_content(<span class="kw-2">&</span><span class="self">self</span>) -> String {
|
||
<span class="kw">let </span><span class="kw-2">mut </span>content = <span class="self">self</span>.content.as_str();
|
||
<span class="kw">if </span><span class="self">self</span>.content.starts_with(<span class="string">'"'</span>) {
|
||
content = <span class="self">self</span>.content.slice(<span class="number">1</span>..);
|
||
}
|
||
|
||
<span class="kw">if </span>content.ends_with(<span class="string">'"'</span>) {
|
||
content = content.slice(..content.len() - <span class="number">1</span>);
|
||
}
|
||
content.replace(<span class="string">"\\t"</span>, <span class="string">" "</span>)
|
||
}
|
||
}
|
||
|
||
<span class="attr">#[derive(GraphQLQuery)]
|
||
#[graphql(
|
||
schema_path = <span class="string">"schemas/schema.graphql"</span>,
|
||
query_path = <span class="string">"schemas/query.graphql"</span>,
|
||
response_derives = <span class="string">"Debug, Serialize, Deserialize, Clone"
|
||
</span>)]
|
||
</span><span class="kw">pub struct </span>GetPostLight;
|
||
|
||
<span class="attr">#[derive(Debug, Clone)]
|
||
</span><span class="kw">pub struct </span>PostUrl {
|
||
<span class="kw">pub </span>slug: String,
|
||
<span class="kw">pub </span>username: String,
|
||
}
|
||
|
||
<span class="kw">impl </span>Data {
|
||
<span class="kw">pub fn </span>new() -> AppData {
|
||
<span class="kw">let </span>path = Path::new(SETTINGS.cache.as_ref().unwrap()).join(<span class="string">"posts_cache"</span>);
|
||
<span class="kw">let </span>cache = sled::open(path).unwrap();
|
||
<span class="kw">let </span>posts = cache.open_tree(<span class="string">"posts"</span>).unwrap();
|
||
<span class="kw">let </span>gists = cache.open_tree(<span class="string">"gists"</span>).unwrap();
|
||
<span class="kw">let </span>res = <span class="self">Self </span>{
|
||
client: Client::new(),
|
||
cache,
|
||
posts,
|
||
gists,
|
||
};
|
||
res.migrate();
|
||
|
||
AppData::new(res)
|
||
}
|
||
|
||
<span class="kw">fn </span>migrate(<span class="kw-2">&</span><span class="self">self</span>) {
|
||
<span class="kw">const </span>POST_KEY: <span class="kw-2">&</span>str = <span class="string">"POST_CACHE_VERSION"</span>;
|
||
<span class="kw">const </span>GIST_KEY: <span class="kw-2">&</span>str = <span class="string">"GIST_CACHE_VERSION"</span>;
|
||
<span class="kw">let </span>trees = [
|
||
(<span class="kw-2">&</span><span class="self">self</span>.posts, POST_KEY, POST_CACHE_VERSION),
|
||
(<span class="kw-2">&</span><span class="self">self</span>.gists, GIST_KEY, GIST_CACHE_VERSION),
|
||
];
|
||
|
||
<span class="kw">for </span>(tree, key, current_version) <span class="kw">in </span>trees {
|
||
<span class="kw">if let </span><span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(v)) = tree.get(key) {
|
||
<span class="kw">let </span>version = bincode::deserialize::<usize>(<span class="kw-2">&</span>v[..]).unwrap();
|
||
<span class="kw">let </span>clean = version != current_version;
|
||
|
||
<span class="kw">if </span>clean {
|
||
<span class="macro">log::info!</span>(
|
||
<span class="string">"Upgrading {} from version {} to version {}"</span>,
|
||
key,
|
||
version,
|
||
current_version
|
||
);
|
||
tree.clear().unwrap();
|
||
tree.flush().unwrap();
|
||
tree.insert(key, bincode::serialize(<span class="kw-2">&</span>current_version).unwrap())
|
||
.unwrap();
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub async fn </span>get_post(<span class="kw-2">&</span><span class="self">self</span>, id: <span class="kw-2">&</span>str) -> PostResp {
|
||
<span class="kw">match </span><span class="self">self</span>.posts.get(id) {
|
||
<span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(v)) => bincode::deserialize(<span class="kw-2">&</span>v[..]).unwrap(),
|
||
<span class="kw">_ </span>=> {
|
||
<span class="kw">let </span>vars = get_post::Variables { id: id.to_owned() };
|
||
<span class="kw">const </span>URL: <span class="kw-2">&</span>str = <span class="string">"https://medium.com/_/graphql"</span>;
|
||
|
||
<span class="kw">let </span>res = post_graphql::<GetPost, <span class="kw">_</span>>(<span class="kw-2">&</span><span class="self">self</span>.client, URL, vars)
|
||
.<span class="kw">await
|
||
</span>.unwrap();
|
||
<span class="kw">let </span>res = res.data.expect(<span class="string">"missing response data"</span>).post.unwrap();
|
||
<span class="self">self</span>.posts
|
||
.insert(id, bincode::serialize(<span class="kw-2">&</span>res).unwrap())
|
||
.unwrap();
|
||
res
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub async fn </span>get_post_light(<span class="kw-2">&</span><span class="self">self</span>, id: <span class="kw-2">&</span>str) -> PostUrl {
|
||
<span class="kw">match </span><span class="self">self</span>.posts.get(id) {
|
||
<span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(v)) => {
|
||
<span class="kw">let </span>cached: PostResp = bincode::deserialize(<span class="kw-2">&</span>v[..]).unwrap();
|
||
PostUrl {
|
||
slug: cached.unique_slug,
|
||
username: cached.creator.username,
|
||
}
|
||
}
|
||
<span class="kw">_ </span>=> {
|
||
<span class="kw">let </span>vars = get_post_light::Variables { id: id.to_owned() };
|
||
<span class="kw">const </span>URL: <span class="kw-2">&</span>str = <span class="string">"https://medium.com/_/graphql"</span>;
|
||
|
||
<span class="kw">let </span>res = post_graphql::<GetPostLight, <span class="kw">_</span>>(<span class="kw-2">&</span><span class="self">self</span>.client, URL, vars)
|
||
.<span class="kw">await
|
||
</span>.unwrap();
|
||
<span class="kw">let </span>res = res.data.expect(<span class="string">"missing response data"</span>).post.unwrap();
|
||
PostUrl {
|
||
slug: res.unique_slug,
|
||
username: res.creator.username,
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub fn </span>get_gist_id(url: <span class="kw-2">&</span>str) -> <span class="kw-2">&</span>str {
|
||
url.split(<span class="string">'/'</span>).last().unwrap()
|
||
}
|
||
|
||
<span class="kw">pub async fn </span>get_gist(<span class="kw-2">&</span><span class="self">self</span>, gist_url: String) -> (String, GistContent) {
|
||
<span class="kw">let </span>id = <span class="self">Self</span>::get_gist_id(<span class="kw-2">&</span>gist_url).to_owned();
|
||
<span class="kw">let </span>file_name = <span class="kw">if </span>gist_url.contains(<span class="string">'?'</span>) {
|
||
<span class="kw">let </span>parsed = url::Url::parse(<span class="kw-2">&</span>gist_url).unwrap();
|
||
<span class="kw">if let </span><span class="prelude-val">Some</span>((<span class="kw">_</span>, file_name)) = parsed.query_pairs().find(|(k, <span class="kw">_</span>)| k == <span class="string">"file"</span>) {
|
||
<span class="prelude-val">Some</span>(file_name.into_owned())
|
||
} <span class="kw">else </span>{
|
||
<span class="prelude-val">None
|
||
</span>}
|
||
} <span class="kw">else </span>{
|
||
<span class="prelude-val">None
|
||
</span>};
|
||
|
||
<span class="kw">let </span><span class="kw-2">mut </span>gist = <span class="kw">match </span><span class="self">self</span>.gists.get(<span class="kw-2">&</span>id) {
|
||
<span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(v)) => bincode::deserialize(<span class="kw-2">&</span>v[..]).unwrap(),
|
||
<span class="kw">_ </span>=> {
|
||
<span class="kw">const </span>URL: <span class="kw-2">&</span>str = <span class="string">"https://api.github.com/gists/"</span>;
|
||
|
||
<span class="kw">let </span>url = <span class="macro">format!</span>(<span class="string">"{}{}"</span>, URL, id);
|
||
|
||
<span class="kw">let </span>resp = <span class="self">self
|
||
</span>.client
|
||
.get(<span class="kw-2">&</span>url)
|
||
.header(USER_AGENT, <span class="string">"libmedium"</span>)
|
||
.send()
|
||
.<span class="kw">await
|
||
</span>.unwrap()
|
||
.json::<serde_json::Value>()
|
||
.<span class="kw">await
|
||
</span>.unwrap();
|
||
<span class="kw">let </span>files = resp.get(<span class="string">"files"</span>).unwrap();
|
||
<span class="kw">let </span>v = files.as_object().unwrap();
|
||
|
||
<span class="kw">fn </span>to_gist_file(name: <span class="kw-2">&</span>str, file_obj: <span class="kw-2">&</span>serde_json::Value) -> GistFile {
|
||
GistFile {
|
||
file_name: name.to_string(),
|
||
content: file_obj
|
||
.get(<span class="string">"content"</span>)
|
||
.unwrap()
|
||
.as_str()
|
||
.unwrap()
|
||
.to_owned(),
|
||
language: file_obj
|
||
.get(<span class="string">"language"</span>)
|
||
.unwrap()
|
||
.as_str()
|
||
.unwrap()
|
||
.to_owned(),
|
||
raw_url: file_obj
|
||
.get(<span class="string">"raw_url"</span>)
|
||
.unwrap()
|
||
.as_str()
|
||
.unwrap()
|
||
.to_owned(),
|
||
}
|
||
}
|
||
|
||
<span class="kw">let </span><span class="kw-2">mut </span>files = Vec::with_capacity(v.len());
|
||
v.iter().for_each(|(name, file_obj)| {
|
||
<span class="kw">let </span>file = to_gist_file(name, file_obj);
|
||
files.push(file);
|
||
});
|
||
|
||
<span class="kw">let </span>gist = GistContent {
|
||
files,
|
||
html_url: resp.get(<span class="string">"html_url"</span>).unwrap().as_str().unwrap().to_owned(),
|
||
};
|
||
|
||
<span class="self">self</span>.gists
|
||
.insert(<span class="kw-2">&</span>id, bincode::serialize(<span class="kw-2">&</span>gist).unwrap())
|
||
.unwrap();
|
||
gist
|
||
}
|
||
};
|
||
|
||
<span class="kw">let </span>gist = <span class="kw">if let </span><span class="prelude-val">Some</span>(file_name) = file_name {
|
||
<span class="kw">let </span><span class="kw-2">mut </span>files: Vec<GistFile> = Vec::with_capacity(<span class="number">1</span>);
|
||
<span class="kw">let </span><span class="kw-2">mut </span>file = gist
|
||
.files
|
||
.iter()
|
||
.find(|f| f.file_name == file_name)
|
||
.unwrap()
|
||
.to_owned();
|
||
<span class="kw">let </span>highlight = render_html::SourcegraphQuery {
|
||
filepath: <span class="kw-2">&</span>file.file_name,
|
||
code: <span class="kw-2">&</span>file.content,
|
||
};
|
||
file.content = highlight.syntax_highlight();
|
||
files.push(file);
|
||
GistContent {
|
||
files,
|
||
html_url: gist_url,
|
||
}
|
||
} <span class="kw">else </span>{
|
||
gist.files.iter_mut().for_each(|f| {
|
||
<span class="kw">let </span>highlight = render_html::SourcegraphQuery {
|
||
filepath: <span class="kw-2">&</span>f.file_name,
|
||
code: <span class="kw-2">&</span>f.content,
|
||
};
|
||
f.content = highlight.syntax_highlight();
|
||
});
|
||
gist
|
||
};
|
||
|
||
(id, gist)
|
||
}
|
||
}
|
||
</code></pre></div>
|
||
</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="libmedium" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.1 (d5a82bbd2 2023-02-07)" data-search-js="search-444266647c4dba98.js" data-settings-js="settings-bebeae96e00e4617.js" data-settings-css="settings-af96d9e2fc13e081.css" ></div></body></html> |