chore: bring back rust-toolchain.toml

Reviewed-on: https://git.javalsai.dynv6.net/danmax/r34-scraper/pulls/9

.gitignore

@@ -1 +1,2 @@
 /target
+/downloads

Cargo.lock

@@ -26,6 +26,168 @@ dependencies = [
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 dependencies = [
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+ "hermit-abi 0.3.9",
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@@ -498,6 +892,12 @@ dependencies = [
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 dependencies = [
  "cc",
  "libc",
@@ -558,27 +958,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "parking_lot"
-version = "0.12.3"
+name = "parking"
+version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
-dependencies = [
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.9.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "smallvec",
- "windows-targets",
-]
+checksum = "f38d5652c16fde515bb1ecef450ab0f6a219d619a7274976324d5e377f7dceba"
 
 [[package]]
 name = "percent-encoding"
@@ -598,6 +981,17 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "piper"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96c8c490f422ef9a4efd2cb5b42b76c8613d7e7dfc1caf667b8a3350a5acc066"
+dependencies = [
+ "atomic-waker",
+ "fastrand",
+ "futures-io",
+]
+
 [[package]]
 name = "pkg-config"
 version = "0.3.31"
@@ -605,10 +999,31 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "953ec861398dccce10c670dfeaf3ec4911ca479e9c02154b3a215178c5f566f2"
 
 [[package]]
-name = "proc-macro2"
-version = "1.0.87"
+name = "polling"
+version = "3.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b3e4daa0dcf6feba26f985457cdf104d4b4256fc5a09547140f3631bb076b19a"
+checksum = "cc2790cd301dec6cd3b7a025e4815cf825724a51c98dccfe6a3e55f05ffb6511"
+dependencies = [
+ "cfg-if",
+ "concurrent-queue",
+ "hermit-abi 0.4.0",
+ "pin-project-lite",
+ "rustix",
+ "tracing",
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "portable-atomic"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc9c68a3f6da06753e9335d63e27f6b9754dd1920d941135b7ea8224f141adb2"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.88"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c3a7fc5db1e57d5a779a352c8cdb57b29aa4c40cc69c3a68a7fedc815fbf2f9"
 dependencies = [
  "unicode-ident",
 ]
@@ -626,20 +1041,15 @@ dependencies = [
 name = "r34-scraper"
 version = "0.1.0"
 dependencies = [
+ "async-std",
+ "clap",
+ "futures",
+ "indicatif",
  "regex",
  "reqwest",
  "tokio",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.5.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b6dfecf2c74bce2466cabf93f6664d6998a69eb21e39f4207930065b27b771f"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "regex"
 version = "1.11.0"
@@ -749,9 +1159,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.23.14"
+version = "0.23.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "415d9944693cb90382053259f89fbb077ea730ad7273047ec63b19bc9b160ba8"
+checksum = "5fbb44d7acc4e873d613422379f69f237a1b141928c02f6bc6ccfddddc2d7993"
 dependencies = [
  "once_cell",
  "rustls-pki-types",
@@ -801,12 +1211,6 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
-
 [[package]]
 name = "security-framework"
 version = "2.11.1"
@@ -852,9 +1256,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.128"
+version = "1.0.132"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ff5456707a1de34e7e37f2a6fd3d3f808c318259cbd01ab6377795054b483d8"
+checksum = "d726bfaff4b320266d395898905d0eba0345aae23b54aee3a737e260fd46db03"
 dependencies = [
  "itoa",
  "memchr",
@@ -880,15 +1284,6 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
-[[package]]
-name = "signal-hook-registry"
-version = "1.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -920,6 +1315,12 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "subtle"
 version = "2.6.1"
@@ -1005,9 +1406,7 @@ dependencies = [
  "bytes",
  "libc",
  "mio",
- "parking_lot",
  "pin-project-lite",
- "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "windows-sys 0.52.0",
@@ -1110,6 +1509,12 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "unicode-width"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
+
 [[package]]
 name = "untrusted"
 version = "0.9.0"
@@ -1127,6 +1532,18 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
+[[package]]
+name = "value-bag"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a84c137d37ab0142f0f2ddfe332651fdbf252e7b7dbb4e67b6c1f1b2e925101"
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"

Cargo.toml

@@ -1,9 +1,13 @@
 [package]
 name = "r34-scraper"
-version = "0.1.0"
+version = "1.0.0"
 edition = "2021"
 
 [dependencies]
-regex = "1.11.0"
-reqwest = { version = "0.12.8", features = ["blocking"] }
-tokio = { version = "1", features = ["full"] }
+async-std = "1"
+clap = { version = "4", features = ["derive"] }
+futures = "0"
+indicatif = "0"
+regex = "1"
+reqwest = { version = "0", features = ["blocking"] }
+tokio = { version = "1", features = ["macros", "rt-multi-thread"] }

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+<https://www.gnu.org/licenses/>.
+
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+may consider it more useful to permit linking proprietary applications with
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+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -4,4 +4,7 @@ a scraper that well scrapes r34
 
 ## note 
 
-this thing is still not completed, it only gathers links, it doesnt download things yet
+this program is pretty much complete, although i am planning to add a few extra features.
+
+## example usage image
+![example image](./image.png)

rust-toolchain.toml

@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly"

src/args/mod.rs

@@ -0,0 +1,33 @@
+use clap::Parser;
+
+#[derive(Debug, Parser)]
+#[command(version)]
+pub struct Args {
+    /// User Agent to use for requests
+    #[arg(
+        short,
+        default_value = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"
+    )]
+    pub user_agent: String,
+
+    /// Tags to search for
+    #[arg(short, long, required = true)]
+    pub tags: Vec<String>,
+
+    /// Page to start scraping from
+    #[arg(short, long, default_value_t = 1)]
+    pub page: usize,
+
+    /// Async jobs to use for fetching
+    #[arg(short, long, default_value_t = 4)]
+    pub jobs: usize,
+
+    /// Delay for rate-limits (ms)
+    #[arg(short, long, default_value = "1000", value_parser = parse_duration)]
+    pub delay: std::time::Duration,
+}
+
+fn parse_duration(arg: &str) -> Result<std::time::Duration, std::num::ParseIntError> {
+    let seconds = arg.parse()?;
+    Ok(std::time::Duration::from_millis(seconds))
+}

src/main.rs

@@ -1,33 +1,42 @@
 #![feature(async_closure)]
+pub mod args;
+
+use clap::Parser;
+use futures::{stream, StreamExt};
+use indicatif::ProgressBar;
 use regex::Regex;
 use reqwest::Client;
-use std::process::ExitCode;
 use tokio::time::{sleep, Duration};
 
-const USER_AGENT: &str = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36";
+use std::io::Write;
+use std::process::ExitCode;
+
+const BAR_LENGTH: u64 = 8;
 
 #[tokio::main]
 async fn main() -> ExitCode {
-    println!("which tags do you want to scrape? ex: 1girls+1boys+yomama");
-    let tags = std::io::stdin()
-        .lines()
-        .next()
-        .unwrap()
-        .unwrap()
-        .trim()
-        .to_string();
+    let args = args::Args::parse();
 
-    let client = Client::builder().user_agent(USER_AGENT).build().unwrap();
-    let mut page = 0;
+    let uri_tags = &args.tags.join("+");
+    let _ = std::fs::create_dir(uri_tags);
 
-    loop {
+    let client = Client::builder()
+        .user_agent(&args.user_agent)
+        .build()
+        .unwrap();
+
+    for page in args.page - 1.. {
         println!("now scraping page {}", page + 1);
+        println!(
+            "https://rule34.xxx/index.php?page=post&s=list&tags={uri_tags}&pid={}",
+            page * 42
+        );
 
-        let post_html = async || {
+        let post_html = async |client: &Client| {
             extract_urls(
                 &client
                     .get(format!(
-                        "https://rule34.xxx/index.php?page=post&s=list&tags={tags}&pid={}",
+                        "https://rule34.xxx/index.php?page=post&s=list&pid={}&tags={uri_tags}",
                         page * 42
                     ))
                     .send()
@@ -39,43 +48,66 @@ async fn main() -> ExitCode {
             )
         };
 
-        let mut urls = post_html().await;
-
-        let mut wait_time = 5000;
-
+        let mut urls = post_html(&client).await;
         if urls.is_empty() {
-            for reconnection_attempts in 0..4 {
-                println!("no urls found, retrying in {} seconds...", wait_time / 1000);
-                sleep(Duration::from_millis(wait_time)).await;
-
-                urls = post_html().await;
+            let mut reconnection_attempts = 0;
+            loop {
+                println!("no urls found, retrying in 5 seconds...");
+                sleep(Duration::from_millis(5000)).await;
 
+                urls = post_html(&client).await;
                 if !urls.is_empty() {
                     println!("urls found! continuing...");
                     break;
                 }
 
-                if reconnection_attempts == 3 {
-                    println!("no urls found in 4 attempts, exiting...");
+                reconnection_attempts += 1;
+                if reconnection_attempts == 12 {
+                    println!("no urls found in 1 minute, exiting...");
                     return ExitCode::FAILURE;
                 }
-
-                wait_time += 5000;
             }
         }
 
-        for url in urls {
-            let img_url =
-                extract_img_url(&client.get(url).send().await.unwrap().text().await.unwrap());
+        let multi_prog = indicatif::MultiProgress::new();
+        let urls_amount = urls.len();
+        let responses = stream::iter(urls.into_iter().enumerate())
+            .map(|(i, url)| {
+                let i = i + 1;
+                let client = &client;
+                let this_bar = indicatif::ProgressBar::new(BAR_LENGTH);
+                this_bar.set_style(indicatif::ProgressStyle::with_template("[{bar}] {msg}").unwrap().progress_chars("=> "));
+                let this_bar = multi_prog.insert(i, this_bar);
+                async move {
+                    // "thread"
+                    loop {
+                        this_bar.set_message(format!("\x1b[37m[{i: >4}/{urls_amount}] \x1b[36mscraping {url:?}\x1b[0m"));
+                        let resp = client.get(&url).send().await.unwrap();
+                        if let Ok(img_url) = extract_img_url(&resp.text().await.unwrap()) {
                             if img_url.is_empty() {
-                println!("image url not found");
+                                this_bar.abandon_with_message(format!(
+                                    "\x1b[37m[{i: >4}/{urls_amount}] \x1b[1;31mimage url not found\x1b[0m"
+                                ));
                             } else {
-                println!("found image url: {img_url}");
+                                download_file(&img_url, this_bar, i, urls_amount, uri_tags).await;
                             }
+                            break;
                         }
 
-        page += 1;
+                        this_bar
+                            .set_message(format!(
+                                    "\x1b[37m[{i: >4}/{urls_amount}] \x1b[31mratelimited, retrying after {}ms\x1b[0m",
+                                    args.delay.as_millis())
+                                );
+                        tokio::time::sleep(args.delay).await;
                     }
+                }
+            })
+            .buffered(args.jobs);
+        let _ = responses.for_each(|()| async {}).await;
+    }
+
+    ExitCode::SUCCESS
 }
 
 fn extract_urls(html: &str) -> Vec<String> {
@@ -86,14 +118,60 @@ fn extract_urls(html: &str) -> Vec<String> {
         .collect()
 }
 
-fn extract_img_url(html: &str) -> String {
+fn extract_img_url(html: &str) -> Result<String, &'static str> {
     if let Some(img_url) =
         Regex::new(r"https://us\.rule34\.xxx/images/([A-Za-z0-9]+(/[A-Za-z0-9]+)+)\.[A-Za-z0-9]+")
             .unwrap()
             .find(html)
     {
-        img_url.as_str().to_string()
+        Ok(img_url.as_str().to_string())
+    } else if html.contains("503 Rate limiting") {
+        Err("ratelimited")
     } else {
-        String::new()
+        Ok(String::new())
     }
 }
+
+async fn download_file(
+    img_url: &str,
+    this_bar: ProgressBar,
+    i: usize,
+    urls_amount: usize,
+    uri_tags: &str,
+) {
+    let args = args::Args::parse();
+
+    let file_name = Regex::new(r"[^/]+$")
+        .unwrap()
+        .find(img_url)
+        .map(|m| m.as_str())
+        .unwrap();
+
+    let file_path = uri_tags.to_owned() + "/" + file_name;
+
+    let mut file = if std::fs::File::open(&file_path).is_ok() {
+        this_bar.finish_with_message(format!(
+            "\x1b[37m[{i: >4}/{urls_amount}] \x1b[33m{file_name} exists, skipping...\x1b[0m"
+        ));
+        return;
+    } else {
+        std::fs::File::create(file_path).unwrap()
+    };
+
+    let mut res = Client::new()
+        .get(img_url)
+        .header("User-Agent", &args.user_agent)
+        .send()
+        .await
+        .unwrap();
+    let file_length = res.content_length().unwrap();
+    let mut written = 0;
+    while let Some(img_chunk) = res.chunk().await.unwrap() {
+        file.write_all(&img_chunk).unwrap();
+        written += img_chunk.len();
+        this_bar.set_position((written as f64 / file_length as f64 * BAR_LENGTH as f64) as u64);
+    }
+    this_bar.finish_with_message(format!(
+        "\x1b[37m[{i: >4}/{urls_amount}] \x1b[32mdownloaded {img_url}\x1b[0m"
+    ));
+}