From 05042bdbc96ecfe0102d2201c30b5164de82b877 Mon Sep 17 00:00:00 2001
From: networkException <git@nwex.de>
Date: Thu, 22 Aug 2024 18:39:49 +0200
Subject: [PATCH] Everywhere: Initial commit

---
 .gitignore  |   5 +
 Cargo.lock  | 291 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |  14 +++
 src/main.rs |  74 +++++++++++++
 4 files changed, 384 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..18701d3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+/target
+
+*.db
+*.db-*
+users.toml
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..43b7d5a
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,291 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "cpufeatures"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
+[[package]]
+name = "handlebars"
+version = "5.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab283476b99e66691dee3f1640fea91487a8d81f50fb5ecc75538f8f8879a1e4"
+dependencies = [
+ "log",
+ "pest",
+ "pest_derive",
+ "serde",
+ "serde_json",
+ "thiserror",
+]
+
+[[package]]
+name = "itoa"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
+
+[[package]]
+name = "libc"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
+
+[[package]]
+name = "log"
+version = "0.4.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
+
+[[package]]
+name = "memchr"
+version = "2.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "523dc4f511e55ab87b694dc30d0f820d60906ef06413f93d4d7a1385599cc149"
+
+[[package]]
+name = "once_cell"
+version = "1.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+
+[[package]]
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
+[[package]]
+name = "pest"
+version = "2.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56f8023d0fb78c8e03784ea1c7f3fa36e68a723138990b8d5a47d916b651e7a8"
+dependencies = [
+ "memchr",
+ "thiserror",
+ "ucd-trie",
+]
+
+[[package]]
+name = "pest_derive"
+version = "2.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0d24f72393fd16ab6ac5738bc33cdb6a9aa73f8b902e8fe29cf4e67d7dd1026"
+dependencies = [
+ "pest",
+ "pest_generator",
+]
+
+[[package]]
+name = "pest_generator"
+version = "2.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fdc17e2a6c7d0a492f0158d7a4bd66cc17280308bbaff78d5bef566dca35ab80"
+dependencies = [
+ "pest",
+ "pest_meta",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "pest_meta"
+version = "2.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "934cd7631c050f4674352a6e835d5f6711ffbfb9345c2fc0107155ac495ae293"
+dependencies = [
+ "once_cell",
+ "pest",
+ "sha2",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.79"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "ryu"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e86697c916019a8588c99b5fac3cead74ec0b4b819707a682fd4d23fa0ce1ba1"
+
+[[package]]
+name = "secrets-file-builder"
+version = "0.1.0"
+dependencies = [
+ "handlebars",
+ "serde_json",
+ "url-escape",
+]
+
+[[package]]
+name = "serde"
+version = "1.0.197"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fb1c873e1b9b056a4dc4c0c198b24c3ffa059243875552b2bd0933b1aee4ce2"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.197"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c5f09b1bd632ef549eaa9f60a1f8de742bdbc698e6cee2095fc84dde5f549ae0"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "sha2"
+version = "0.10.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7383cd0e49fff4b6b90ca5670bfd3e9d6a733b3f90c686605aa7eec8c4996032"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
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+ "thiserror-impl",
+]
+
+[[package]]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
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+
+[[package]]
+name = "ucd-trie"
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+
+[[package]]
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+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+
+[[package]]
+name = "url-escape"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44e0ce4d1246d075ca5abec4b41d33e87a6054d08e2366b63205665e950db218"
+dependencies = [
+ "percent-encoding",
+]
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..3bea173
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "secrets-file-builder"
+version = "0.1.0"
+edition = "2021"
+authors = ["networkException <git@nwex.de>"]
+license = "BSD-2-Clause"
+repository = "https://git.nwex.de/networkException/secrets-file-builder"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+handlebars = "5.1.0"
+serde_json = "1.0.114"
+url-escape = "0.1.1"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..02bd5aa
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,74 @@
+use handlebars::{Context, Handlebars, Helper, HelperResult, JsonRender, Output, RenderContext, RenderErrorReason};
+use serde_json::{Map, Value};
+use std::{env, error::Error};
+use std::fs;
+use url_escape;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut handlebars = Handlebars::new();
+
+    let path_to_contents = env::args().nth(1).expect("The first argument to be present.");
+    let output_path = env::args().nth(2).expect("The second argument to be present.");
+
+    let contents = fs::read_to_string(path_to_contents).expect("To be able to open a file at the path passed as the first argument.");
+
+    let secret_inputs = env::vars().filter(|(key, _)| key.starts_with("SECRET_"));
+
+    let mut data_map = Map::new();
+
+    for (_, value) in secret_inputs {
+        let Some((secret_key, path_to_secret)) = value.split_once(":") else {
+            panic!("Secret environment variable is not in format 'name:path_to_secret'");
+        };
+
+        let secret_value = fs::read_to_string(path_to_secret)?;
+
+        println!("Registering secret '{secret_key}' from '{path_to_secret}'.");
+
+        data_map.insert(secret_key.to_string(), Value::String(secret_value.trim().to_string()));
+    }
+
+    handlebars.register_helper("uri_encode_user_info",Box::new(|helper: &Helper, _: &Handlebars, _: &Context, _: &mut RenderContext, out: &mut dyn Output| -> HelperResult {
+        let parameter = helper.param(0).ok_or(RenderErrorReason::ParamNotFoundForIndex("uri_encode_user_info", 0))?;
+        let parameter_value = parameter.value().render();
+
+        out.write(url_escape::encode_userinfo_to_string(parameter_value, &mut String::from("https://")))?;
+        Ok(())
+    }));
+
+    handlebars.register_helper("uri_encode_path",Box::new(|helper: &Helper, _: &Handlebars, _: &Context, _: &mut RenderContext, out: &mut dyn Output| -> HelperResult {
+        let parameter = helper.param(0).ok_or(RenderErrorReason::ParamNotFoundForIndex("uri_encode_path", 0))?;
+        let parameter_value = parameter.value().render();
+
+        out.write(url_escape::encode_path_to_string(parameter_value, &mut String::from("https://")))?;
+        Ok(())
+    }));
+
+    handlebars.register_helper("uri_encode_component",Box::new(|helper: &Helper, _: &Handlebars, _: &Context, _: &mut RenderContext, out: &mut dyn Output| -> HelperResult {
+        let parameter = helper.param(0).ok_or(RenderErrorReason::ParamNotFoundForIndex("uri_encode_component", 0))?;
+        let parameter_value = parameter.value().render();
+
+        out.write(url_escape::encode_component_to_string(parameter_value, &mut String::from("https://")))?;
+        Ok(())
+    }));
+
+    handlebars.register_helper("json_encode_string",Box::new(|helper: &Helper, _: &Handlebars, _: &Context, _: &mut RenderContext, out: &mut dyn Output| -> HelperResult {
+        let parameter = helper.param(0).ok_or(RenderErrorReason::ParamNotFoundForIndex("json_encode_string", 0))?;
+        let parameter_value = parameter.value().render();
+
+        let encoded = serde_json::Value::String(parameter_value).to_string();
+        let encoded = encoded.strip_prefix('"').unwrap().strip_suffix('"').unwrap();
+
+        out.write(encoded)?;
+        Ok(())
+    }));
+
+    // NOTE: By default, handlebars escapes variables for HTML.
+    handlebars.register_escape_fn(handlebars::no_escape);
+
+    let output = handlebars.render_template(contents.as_str(), &Value::Object(data_map))?;
+
+    fs::write(output_path, output)?;
+
+    Ok(())
+}