checkpoint - onto profiling

Cargo.toml

@@ -8,10 +8,10 @@ base64 = "0.22.1"
 html5ever = "0.29"
 # minio = "0.1.0"
 minio = {git="https://github.com/minio/minio-rs.git", rev = "c28f576"}
-reqwest = "0.12"
+reqwest = { version = "0.12", features = ["gzip"] }
 serde = { version = "1.0", features = ["derive"] }
-surrealdb = "2.1"
+surrealdb = "2.2"
 tokio = { version="1.41.0", features = ["full"] }
 tracing = "0.1"
-tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+tracing-subscriber = { version = "0.3", features = ["env-filter", "local-time"] }
 url = { version = "2.5", features = ["serde"] }

src/db.rs

@@ -1,9 +1,6 @@
 use serde::{Deserialize, Serialize};
 use surrealdb::{
-    engine::remote::ws::{Client, Ws},
+    engine::remote::ws::{Client, Ws}, error::Db, opt::auth::Root, sql::Thing, Response, Surreal
-    opt::auth::Root,
-    sql::Thing,
-    Response, Surreal,
 };
 use tracing::{error, instrument, trace, warn};
 use url::Url;
@@ -82,15 +79,15 @@ impl Website {
     }
 
     #[instrument(skip_all)]
-    pub async fn store(&mut self, db: &Surreal<Client>) -> Option<Thing> {
+    pub async fn store(&self, db: &Surreal<Client>) -> Option<Thing> {
         // check if it's been gone thru before
         let mut response = db
             .query("SELECT * FROM ONLY website WHERE site = $site LIMIT 1")
             .bind(("site", self.site.to_string()))
             .await
-            .unwrap();
+            .expect("Failed to check surreal for duplicates!");
 
-        if let Some(old) = response.take::<Option<Website>>(0).unwrap() {
+        if let Some(old) = response.take::<Option<Website>>(0).expect("Failed to read reponse from surreal for duplicates.") {
             // site exists already
             if let Some(id) = old.id {
                 // make sure to preserve the "crawled status"
@@ -106,7 +103,18 @@ impl Website {
                         }
                     }
                     Err(e) => {
-                        error!("{}", e);
+                        match e {
+                            surrealdb::Error::Db(error) => {
+                                match error {
+                                    Db::QueryCancelled => todo!(),
+                                    Db::QueryNotExecuted => todo!(),
+                                    Db::QueryNotExecutedDetail { message } => todo!(),
+                                   _=>{},
+                                }
+                            },
+                            _=>{},
+                        }
+                        // error!("{}", e);
                     }
                 };
             }

src/main.rs

@@ -1,3 +1,6 @@
+#![feature(type_alias_impl_trait)]
+#![feature(const_async_blocks)]
+
 extern crate html5ever;
 
 use std::time::Instant;
@@ -5,12 +8,13 @@ use std::time::Instant;
 use db::{connect, Website};
 use s3::S3;
 use surrealdb::{engine::remote::ws::Client, Surreal};
+use tokio::task::JoinSet;
 use tracing::{debug, info, instrument, trace, trace_span};
-use tracing_subscriber::EnvFilter;
+use tracing_subscriber::{fmt::time::LocalTime, EnvFilter};
 
 mod db;
-mod s3;
 mod parser;
+mod s3;
 
 struct Config<'a> {
     surreal_ns: &'a str,
@@ -31,52 +35,62 @@ async fn main() {
 
     tracing_subscriber::fmt()
         .with_env_filter(EnvFilter::from_default_env())
-        .with_line_number(false)
+        .with_line_number(true)
-        .without_time()
+        .with_file(true)
+        .with_timer(LocalTime::rfc_3339())
         .init();
     debug!("Starting...");
+   // Would probably take these in as parameters from a cli
+    let starting_url = "https://en.wikipedia.org/";
+    // When getting uncrawled pages, name must contain this variable. "" will effectively get ignored.
+    let crawl_filter = "en.wikipedia.org/";
+    let budget = 50;
+    let mut crawled = 0;
 
     let config = Config {
         surreal_url: "localhost:8000",
         surreal_username: "root",
         surreal_password: "root",
         surreal_ns: "test",
-        surreal_db: "b64v1",
+        surreal_db: "v1.11.2",
-        s3_bucket: "b64v1",
+        s3_bucket: "v1.11.2",
         s3_url: "http://localhost:9000",
         s3_access_key: "8UO76z8wCs9DnpxSbQUY",
         s3_secret_key: "xwKVMpf2jzgprsdo85Dvo74UmO84y0aRrAUorYY5",
     };
    
-    // Would probably take these in as parameters from a cli
-    let starting_url = "https://en.wikipedia.org/";
-    // When getting uncrawled pages, name must contain this variable. "" will effectively get ignored.
-    let crawl_filter = "wikipedia.org/";
-    let budget = 50;
-    let mut crawled = 0;
 
-    let s3 = S3::connect(&config).await.expect("Failed to connect to minio, aborting.");
+    let db = connect(&config)
-    let db = connect(&config).await.expect("Failed to connect to surreal, aborting.");
+        .await
+        .expect("Failed to connect to surreal, aborting.");
+    let s3 = S3::connect(&config)
+        .await
+        .expect("Failed to connect to minio, aborting.");
 
     let reqwest = reqwest::Client::builder()
         // .use_rustls_tls()
+        .gzip(true)
         .build()
-        .unwrap();
+        .expect("Failed to build reqwest client.");
 
     // Kick off the whole machine - This Website object doesn't matter, it's just to allow for
     // get() to work.
     let span = trace_span!("Pre-Loop");
     let pre_loop_span = span.enter();
     // Download the site
-    let mut site = Website::new(&starting_url, false);
+    let site = Website::new(&starting_url, false);
-    get(&mut site, &db, &reqwest, &s3, &mut crawled).await;
+    get(site, db.clone(), reqwest.clone(), s3.clone()).await;
 
     drop(pre_loop_span);
 
     let span = trace_span!("Loop");
     let span = span.enter();
     while crawled < budget {
-        let get_num = if budget - crawled < 100 { budget - crawled } else { 100 };
+        let get_num = if budget - crawled < 100 {
+            budget - crawled
+        } else {
+            100
+        };
 
         let uncrawled = get_uncrawled_links(&db, get_num, crawl_filter.to_string()).await;
         if uncrawled.len() == 0 {
@@ -88,11 +102,19 @@ async fn main() {
         let span = trace_span!("Crawling");
         let _ = span.enter();
 
-        for mut site in uncrawled {
+        {
-            get(&mut site, &db, &reqwest, &s3, &mut crawled).await;
+            let mut futures = JoinSet::new();
-
+            for site in uncrawled {
-            let percent = format!("{:.2}%", (crawled as f32 / budget as f32) * 100f32);
+                futures.spawn(get(site, db.clone(), reqwest.clone(), s3.clone()));
-            info!("Crawled {crawled} out of {budget} pages. ({percent})");
+                // technically the site hasn't be crawled *yet*, but the future
+                // where it is crawled has been set up.
+                crawled += 1;
+                // let percent = format!("{:.2}%", (crawled as f32 / budget as f32) * 100f32);
+                // info!("Crawled {crawled} out of {budget} pages. ({percent})");
+            }
+            debug!("Joining {} futures...", futures.len());
+            // join all the gets together
+            let _ = futures.join_all().await;
         }
     }
     drop(span);
@@ -103,25 +125,19 @@ async fn main() {
 
 #[instrument(skip_all)]
 /// Downloads and crawls and stores a webpage.
-async fn get(
+/// It is acceptable to clone `db`, `reqwest`, and `s3` because they all use `Arc`s internally. - Noted by Oliver 
-    site: &mut Website,
+async fn get(mut site: Website, db: Surreal<Client>, reqwest: reqwest::Client, s3: S3) {
-    db: &Surreal<Client>,
-    reqwest: &reqwest::Client,
-    s3: &S3,
-    count: &mut usize,
-) {
     trace!("Get: {}", site.to_string());
     let timer = Timer::start("Got page");
     if let Ok(response) = reqwest.get(site.to_string()).send().await {
         timer.stop();
 
         // Get body
-        let data = response.text().await.unwrap();
+        let data = response.text().await.expect("Failed to read http response's body!");
         // Store document
         s3.store(&data, &site.site).await;
         // Parse document and store relationships
-        parser::parse(db, site, data).await;
+        parser::parse(&db, &mut site, &data).await;
-        *count += 1;
         return;
     }
     trace!("Failed to get: {}", site.to_string());
@@ -129,15 +145,19 @@ async fn get(
 
 /// Returns uncrawled links
 #[instrument(skip(db))]
-async fn get_uncrawled_links(db: &Surreal<Client>, mut count: usize, param: String) -> Vec<Website> {
+async fn get_uncrawled_links(
+    db: &Surreal<Client>,
+    mut count: usize,
+    filter: String,
+) -> Vec<Website> {
     if count > 100 {
         count = 100
     }
-    trace!("Getting uncrawled links");
+    debug!("Getting uncrawled links");
 
     let mut response = db
         .query("SELECT * FROM website WHERE crawled = false AND site CONTAINS type::string($format) LIMIT $count;")
-        .bind(("format", param))
+        .bind(("format", filter))
         .bind(("count", count))
         .await
         .expect("Hard-coded query failed..?");
@@ -162,7 +182,7 @@ impl<'a> Timer<'a> {
     pub fn stop(&self) -> f64 {
         let dif = self.start.elapsed().as_micros();
         let ms = dif as f64 / 1000.;
-        debug!("{}", format!("{} in {:.3}ms", self.msg, ms));
+        trace!("{}", format!("{} in {:.3}ms", self.msg, ms));
         ms
     }
 }

src/parser.rs

@@ -12,12 +12,7 @@ use tracing::instrument;
 use crate::db::Website;
 use crate::Timer;
 
-#[derive(Clone)]
+impl TokenSink for Website {
-struct LinkParser<'a> {
-    site: &'a Website,
-}
-
-impl TokenSink for LinkParser<'_> {
     type Handle = Vec<Website>;
 
     fn process_token(&self, token: Token, _line_number: u64) -> TokenSinkResult<Self::Handle> {
@@ -40,12 +35,12 @@ impl TokenSink for LinkParser<'_> {
                                 if attr_name == "src" || attr_name == "href" || attr_name == "data"
                                 {
                                     // Get clone of the current site object
-                                    let mut web = self.site.clone();
+                                    let mut web = self.clone();
 
                                     // Set url
                                     let mut url = web.site;
                                     url.set_fragment(None); // removes #xyz
-                                    let joined = url.join(&attr.value).unwrap();
+                                    let joined = url.join(&attr.value).expect("Failed to join url during parsing!");
                                     web.site = joined;
 
                                     web.crawled = false;
@@ -70,31 +65,49 @@ impl TokenSink for LinkParser<'_> {
 }
 
 #[instrument(skip_all)]
-pub async fn parse(db: &Surreal<Client>, site: &mut Website, data: String) {
+pub async fn parse(db: &Surreal<Client>, site: &mut Website, data: &str) {
-    
+    // update self in db
     site.set_crawled();
     site.store(db).await;
 
-    let sink = LinkParser { site };
+    // prep work
-    let chunk = Tendril::from_str(&data).unwrap();
+    let mut other_sites = Vec::new();
-    let mut input = BufferQueue::default();
+    { // using blocks to prevent compiler's async worries
-    input.push_back(chunk.try_reinterpret::<fmt::UTF8>().unwrap());
+        let _t = Timer::start("Parsed page");
 
-    let token = Tokenizer::new(sink.clone(), TokenizerOpts::default());
+        // change data into something that can be tokenized
+        let chunk = Tendril::from_str(&data).expect("Failed to parse string into Tendril!");
+        // create buffer of tokens and push our input into it
+        let mut token_buffer = BufferQueue::default();
+        token_buffer.push_back(chunk.try_reinterpret::<fmt::UTF8>().expect("Failed to reinterprt chunk!"));
+        // create the tokenizer
+        let tokenizer = Tokenizer::new(site.clone(), TokenizerOpts::default());
 
+        // go thru buffer
+        while let TokenizerResult::Script(sites) = tokenizer.feed(&mut token_buffer) {
+            other_sites.push(sites);
+        }
+
+        assert!(token_buffer.is_empty());
+        tokenizer.end();
+    }
+
+    {
         let t = Timer::start("Stored pages");
         let mut links_to = Vec::new();
-    while !input.is_empty() {
+
-        if let TokenizerResult::Script(s) = token.feed(&mut input) {
+        // this is a 2d vec accidentally
-            for mut web in s {
+        for a in other_sites {
-                if let Some(id) = web.store(db).await {
+            for b in a {
-                    links_to.push(id);
+                // TODO this can become a JoinSet later
-                }
+                let other = b.store(db).await;
+                if let Some(o) = other {
+                    links_to.push(o);
                 }
             }
         }
+
+        site.links_to(links_to, db).await;
         drop(t);
-    sink.site.links_to(links_to, db).await;
+    }
-    assert!(input.is_empty());
-    token.end();
 }

src/s3.rs

@@ -1,11 +1,20 @@
+use base64::{alphabet, engine::{self, general_purpose}, Engine};
 use minio::s3::{
-    args::{BucketExistsArgs, MakeBucketArgs}, client::ClientBuilder, creds::StaticProvider, error::Error, http::BaseUrl, types::S3Api, Client
+    args::{BucketExistsArgs, MakeBucketArgs},
+    client::ClientBuilder,
+    creds::StaticProvider,
+    error::Error,
+    http::BaseUrl,
+    Client,
 };
-use tracing::{instrument, trace};
+use tracing::{instrument, trace, warn};
 use url::Url;
 
 use crate::Config;
         
+const CUSTOM_ENGINE: engine::GeneralPurpose = engine::GeneralPurpose::new(&alphabet::URL_SAFE, general_purpose::NO_PAD);
+
+#[derive(Clone)]
 pub struct S3 {
     bucket_name: String,
     client: Client,
@@ -14,7 +23,10 @@ pub struct S3 {
 impl S3 {
     #[instrument(skip_all, name = "S3")]
     pub async fn connect(config: &Config<'_>) -> Result<Self, Error> {
-        let base_url = config.s3_url.parse::<BaseUrl>().unwrap();
+        let base_url = config
+            .s3_url
+            .parse::<BaseUrl>()
+            .expect("Failed to parse url into BaseUrl");
 
         let static_provider =
             StaticProvider::new(&config.s3_access_key, &config.s3_secret_key, None);
@@ -25,17 +37,22 @@ impl S3 {
 
         trace!("Checking bucket...");
         let exists = client
-            .bucket_exists(&BucketExistsArgs::new(&config.s3_bucket).unwrap())
+            .bucket_exists(
+                &BucketExistsArgs::new(&config.s3_bucket)
+                    .expect("Failed to check if bucket exists"),
+            )
             .await?;
 
         if !exists {
             trace!("Creating bucket...");
             client
-                .make_bucket(&MakeBucketArgs::new(&config.s3_bucket).unwrap())
+                .make_bucket(
+                    &MakeBucketArgs::new(&config.s3_bucket).expect("Failed to create bucket!"),
+                )
                 .await?;
         }
 
-        trace!("Connection successfull");
+        trace!("Connection successful");
 
         Ok(Self {
             bucket_name: config.s3_bucket.to_owned(),
@@ -44,13 +61,25 @@ impl S3 {
     }
 
     #[instrument(skip_all)]
-    pub async fn store(&self, data: &str, name: &Url) {
+    pub async fn store(&self, data: &str, url: &Url) {
-        if let Some(domain) = name.to_string().split('#').collect::<Vec<&str>>().get(0) {
+        if let Some(domain) = url.domain() {
-            use base64::prelude::*;
+            let filename = domain.to_owned() + url.path();
-            // FIXME can still get unsupported characters, _ I think
-            let filename = BASE64_URL_SAFE.encode(domain);
 
-            trace!("Filename: {filename} from {domain}");
+            trace!("Created filename: {filename} from raw: {}", url.to_string());
+
+            let _ = match &self
+                .client
+                .put_object_content(&self.bucket_name, &filename, data.to_owned())
+                .send()
+                .await {
+                    Ok(_) => {},
+                    Err(err) => {
+                        match err {
+                            Error::InvalidObjectName(_) => {
+
+                                warn!("Tried storing invalid object name, retrying with Base64 encoding. Last try.");
+                                
+                                let filename: String = domain.to_owned() + &CUSTOM_ENGINE.encode(url.path());
 
                                 let _ = &self
                                     .client
@@ -58,24 +87,11 @@ impl S3 {
                                     .send()
                                     .await
                                     .unwrap();
+                            },
+                            _ => {},
                        }
+                    },
+                };
         }
-    
-    pub async fn _get(&self, name: &Url) -> Option<String> {
-         if let Some(domain) = name.domain() {
-            let filename = domain.to_string() + name.path();
-
-            let data = self
-                .client
-                .get_object(&self.bucket_name, &filename)
-                .send()
-                .await
-                .unwrap();
-             
-            if let Ok(segments )= data.content.to_segmented_bytes().await {
-                return Some(segments.to_bytes().iter().map(|c| *c as char).collect::<String>())
-            }
-        }
-        None
     }
 }