From cfd9fd8eb3cfb3477843b3eea31700b54d721dcf Mon Sep 17 00:00:00 2001
From: Vincent Breitmoser <look@my.amazin.horse>
Date: Tue, 19 Mar 2024 09:51:49 +0100
Subject: tester: add gen-reqs command

---
 tester/src/generate.rs |  4 +++-
 tester/src/genreqs.rs  | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
 tester/src/main.rs     | 27 +++++++++++++++++++++++++-
 tester/src/util.rs     |  3 +++
 4 files changed, 84 insertions(+), 2 deletions(-)
 create mode 100644 tester/src/genreqs.rs
 create mode 100644 tester/src/util.rs

diff --git a/tester/src/generate.rs b/tester/src/generate.rs
index b75a325..bc68597 100644
--- a/tester/src/generate.rs
+++ b/tester/src/generate.rs
@@ -5,6 +5,8 @@ use anyhow::Result;
 use indicatif::{ProgressBar, ProgressStyle};
 use openpgp::{cert::CertBuilder, serialize::Serialize};
 
+use crate::util;
+
 pub fn do_generate(count: u64, output_path: &Path, fprs_path: Option<&Path>) -> Result<()> {
     let progress_bar = ProgressBar::new(count);
     progress_bar.set_style(
@@ -22,7 +24,7 @@ pub fn do_generate(count: u64, output_path: &Path, fprs_path: Option<&Path>) ->
     };
     for i in 0..count {
         let (cert, _) =
-            CertBuilder::general_purpose(None, Some(format!("{:07}@hagrid.invalid", i)))
+            CertBuilder::general_purpose(None, Some(util::gen_email(i)))
                 .generate()?;
         cert.serialize(&mut output)?;
         if let Some(ref mut output_fprs) = output_fprs {
diff --git a/tester/src/genreqs.rs b/tester/src/genreqs.rs
new file mode 100644
index 0000000..fd3d588
--- /dev/null
+++ b/tester/src/genreqs.rs
@@ -0,0 +1,52 @@
+use std::io::Write;
+use std::{fs::File, io, io::BufRead, path::Path};
+
+use anyhow::Result;
+use rand::seq::SliceRandom;
+use rand::{thread_rng, Rng};
+
+use crate::util;
+
+pub fn do_genreqs(host: &str, fprs_path: &Path) -> Result<()> {
+    let file = File::open(fprs_path)?;
+    let fingerprints: Vec<String> = io::BufReader::new(file).lines().flatten().collect();
+
+    /* possible requests:
+     * /vks/v1/by-fingerprint/
+     * /vks/v1/by-keyid/
+     * /vks/v1/by-email/
+     */
+
+    let mut rng = thread_rng();
+    let mut stdout = io::LineWriter::new(io::stdout());
+    loop {
+        let result = match rng.gen_range(0, 3) {
+            0 => {
+                let email = util::gen_email(rng.gen_range(0, fingerprints.len() as u64));
+                stdout.write_fmt(format_args!(
+                    "GET {}/vks/v1/by-email/{}\n",
+                    host, email
+                ))
+            }
+            1 => {
+                let random_fpr = fingerprints.choose(&mut rng).unwrap();
+                stdout.write_fmt(format_args!(
+                    "GET {}/vks/v1/by-keyid/{}\n",
+                    host,
+                    &random_fpr[24..40]
+                ))
+            }
+            _ => {
+                let random_fpr = fingerprints.choose(&mut rng).unwrap();
+                stdout.write_fmt(format_args!(
+                    "GET {}/vks/v1/by-fingerprint/{}\n",
+                    host, random_fpr
+                ))
+            }
+        };
+
+        if result.is_err() {
+            return Ok(());
+        }
+    }
+}
diff --git a/tester/src/main.rs b/tester/src/main.rs
index a2de67c..3ece95f 100644
--- a/tester/src/main.rs
+++ b/tester/src/main.rs
@@ -1,6 +1,7 @@
 extern crate anyhow;
 extern crate clap;
 extern crate indicatif;
+extern crate rand;
 extern crate sequoia_openpgp as openpgp;
 extern crate serde_derive;
 
@@ -11,6 +12,8 @@ use anyhow::Result;
 use clap::{App, Arg, SubCommand};
 
 mod generate;
+mod genreqs;
+mod util;
 
 fn main() -> Result<()> {
     let matches = App::new("Hagrid Tester")
@@ -46,6 +49,17 @@ fn main() -> Result<()> {
                         .help("path to file to store fingerprints in"),
                 ),
         )
+        .subcommand(
+            SubCommand::with_name("gen-reqs")
+                .about("generate requests")
+                .arg(
+                    Arg::with_name("fingerprints file")
+                        .long("fingerprints-file")
+                        .default_value("fingerprints.txt")
+                        .help("path to read fingerprints from"),
+                )
+                .arg(Arg::with_name("host").index(1).required(true)),
+        )
         .get_matches();
 
     if let Some(matches) = matches.subcommand_matches("generate") {
@@ -58,7 +72,18 @@ fn main() -> Result<()> {
         let output_fprs: Option<PathBuf> = matches
             .value_of("fingerprints output file")
             .map(|s| s.parse().unwrap());
-        generate::do_generate(count, output_certs.as_path(), output_fprs.as_ref().map(|f| f.as_path()))?;
+        generate::do_generate(
+            count,
+            output_certs.as_path(),
+            output_fprs.as_ref().map(|f| f.as_path()),
+        )?;
+    } else if let Some(matches) = matches.subcommand_matches("gen-reqs") {
+        let host = matches.value_of("host").unwrap();
+        let fprs_file: PathBuf = matches
+            .value_of("fingerprints file")
+            .map(|s| s.parse().unwrap())
+            .unwrap();
+        genreqs::do_genreqs(host, fprs_file.as_path())?;
     } else {
         println!("{}", matches.usage());
     }
diff --git a/tester/src/util.rs b/tester/src/util.rs
new file mode 100644
index 0000000..f8edd21
--- /dev/null
+++ b/tester/src/util.rs
@@ -0,0 +1,3 @@
+pub fn gen_email(i: u64) -> String {
+    format!("{:07}@hagrid.invalid", i)
+}
-- 
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