9 files changed, 525 insertions, 0 deletions

diff --git a/rust/wolfree_libredirect_patch/Cargo.toml b/rust/wolfree_libredirect_patch/Cargo.toml
new file mode 100644
index 0000000..5b587d5
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/Cargo.toml
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# This file is part of Wolfree.
+# 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.
+
+[package]
+name = "wolfree_libredirect_patch"
+version = "23.7.31"
+edition = "2021"
+
+authors = ["See the commit history of the Git repositories: <https://try.gitea.io/wolfree>"]
+description = "The Rust crate provides lightweight wrappers around the `fs::write` and `fs::remove_dir_all` functions from the standard library's `fs` module."
+license = "AGPL-3.0-or-later"
+repository = "https://try.gitea.io/wolfree"
+readme = "README.md"
+keywords = ["rust", "wrapper", "write", "remove", "file"]
+categories = ["command-line-utilities", "development-tools::build-utils", "web-programming"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+markdown = "1.0.0-alpha"
diff --git a/rust/wolfree_libredirect_patch/src/body.md b/rust/wolfree_libredirect_patch/src/body.md
new file mode 100644
index 0000000..69ccfc1
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/body.md
@@ -0,0 +1,68 @@
+# Paywall-Respecting Instances: Wolfree instances that do not bypass any paywall
+
+Welcome to Paywall-Respecting Instances, where we provide Wolfree instances that **do not bypass any paywall**.
+
+## The Problem with Other Wolfree Instances
+
+Most other Wolfree instances can bypass paywalls, which raises concerns about Microsoft GitHub's [DMCA Takedown Policy](https://docs.github.com/en/site-policy/content-removal-policies/dmca-takedown-policy).
+
+Unfortunately, this means that developers of [LibRedirect](https://libredirect.github.io/) cannot redirect users to such instances.
+
+To learn more about this issue, please refer to [issue #425](https://github.com/libredirect/browser_extension/issues/425) on Microsoft GitHub.
+
+## The Solution: Paywall-Respecting Instances
+
+Unlike other Wolfree instances, Paywall-Respecting Instances prioritize ethical practices and **do not bypass any paywall**. So developers of LibRedirect can confidently redirect their users to Paywall-Respecting Instances.
+
+## Instance List
+
+Here are some Paywall-Respecting Instances you can access:
+
+1. https://gqq.gitlab.io/
+2. https://jqq.gitlab.io/
+3. https://rqq.gitlab.io/
+4. https://sqq.gitlab.io/
+5. https://uqq.gitlab.io/
+
+JSON: [instances.json](/instances.json)
+
+## Source Code
+
+Paywall-Respecting Instances is free and open-source software. You can access and download its source code from the following websites:
+
+1. https://try.gitea.io/wolfree
+2. https://codeberg.org/wolfree
+3. https://git.disroot.org/wolfree
+4. https://next.forgejo.org/wolfree
+5. https://git.kiwifarms.net/wolfree
+6. http://it7otdanqu7ktntxzm427cba6i53w6wlanlh23v5i3siqmos47pzhvyd.onion/wolfree
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+
+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.
+
+## How it Works
+
+1. Install [LibRedirect](https://libredirect.github.io/) on your web browser.
+2. LibRedirect automatically redirects you from Wolfram to our instances, safeguarding your privacy.
+3. Enjoy accessing Wolfree instances that uphold ethical practices and **do not bypass any paywall**.
+
+## Key Features
+
+### Compliance with Microsoft GitHub
+
+Paywall-Respecting Instances **do not bypass any paywall**, empowering LibRedirect developers with the confidence to redirect users to our instances.
+
+### Protect Your Privacy
+
+Once you install LibRedirect on your web browser, LibRedirect automatically redirects you from Wolfram to our instances, securing your digital privacy.
+
+### Ethical Practices
+
+By accessing our instances, you actively promote ethical practices and support the work of content creators.
+
+## Get Started Now!
+
+Install LibRedirect to access Paywall-Respecting Instances. Enjoy Wolfree instances that **do not bypass any paywall**.
+
+- [Install LibRedirect](https://libredirect.github.io/)
diff --git a/rust/wolfree_libredirect_patch/src/head.html b/rust/wolfree_libredirect_patch/src/head.html
new file mode 100644
index 0000000..d67963c
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/head.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="description"
+        content="With our seamless integration with LibRedirect, a web browser extension that protects your digital privacy, you can ensure that your access to Wolfree instances preserves your privacy and complies with Microsoft GitHub's DMCA Takedown Policy." />
+    <title>
+        Wolfree instances that do not bypass any paywall | Paywall-Respecting Instances
+    </title>
+    <style>
+        html {
+            margin: 1rem;
+            font-family: sans-serif;
+        }
+
+        body {
+            max-width: 30rem;
+            margin: 5rem auto;
+        }
+
+        h1,
+        h2 {
+            margin-top: 5rem;
+            line-height: 1.5;
+        }
+
+        p,
+        li {
+            line-height: 2;
+        }
+
+        a {
+            text-decoration: none;
+            word-wrap: break-word;
+        }
+    </style>
+    <link rel="icon" href="data:," />
+</head>
+
+</html>
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
\ No newline at end of file
diff --git a/rust/wolfree_libredirect_patch/src/instances.json b/rust/wolfree_libredirect_patch/src/instances.json
new file mode 100644
index 0000000..8cdd008
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/instances.json
@@ -0,0 +1,14 @@
+{
+  "wolfree": {
+    "clearnet": [
+      "https://gqq.gitlab.io/",
+      "https://jqq.gitlab.io/",
+      "https://rqq.gitlab.io/",
+      "https://sqq.gitlab.io/",
+      "https://uqq.gitlab.io/"
+    ],
+    "tor": [],
+    "i2p": [],
+    "loki": []
+  }
+}
diff --git a/rust/wolfree_libredirect_patch/src/main.rs b/rust/wolfree_libredirect_patch/src/main.rs
new file mode 100644
index 0000000..65f1b93
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/main.rs
@@ -0,0 +1,95 @@
+//! The Rust crate provides lightweight wrappers around the `fs::write` and `fs::remove_dir_all` functions from the standard library's `fs` module.
+//! The crate is designed to simplify file writing and directory removal operations by encapsulating the error handling logic and providing a more convenient interface.
+//! It is particularly useful for tasks that involve writing multiple files or removing directories with their contents.
+
+#![allow(clippy::blanket_clippy_restriction_lints)]
+#![allow(clippy::exit)]
+#![allow(clippy::print_stderr)]
+#![allow(clippy::implicit_return)]
+
+/* SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * 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.
+ */
+
+use markdown::to_html_with_options;
+use markdown::Options;
+use std::fs;
+
+/// A lightweight wrapper around `fs::write`.
+fn wolfree_write(file_path: &str, contents: &str) {
+    match fs::write(file_path, contents) {
+        Ok(_) => (),
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    };
+}
+
+/// A lightweight wrapper around `fs::remove_dir_all`.
+fn wolfree_remove_dir_all(dir_path: &str) {
+    match fs::remove_dir_all(dir_path) {
+        Ok(_) => (),
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    };
+}
+
+/// A lightweight wrapper around `markdown::to_html_with_options`.
+fn wolfree_to_html_with_options(value: &str) -> String {
+    match to_html_with_options(value, &Options::gfm()) {
+        Ok(result) => result,
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    }
+}
+
+/// Entry point of the program.
+fn main() {
+    wolfree_write(
+        "./docusaurus/build/ajax/libs/wolfree/23.7.8/js/Entrypoint.js",
+        "export default () => {}",
+    );
+    wolfree_write(
+        "./docusaurus/build/index.html",
+        &format!(
+            "{}{}",
+            include_str!("head.html"),
+            wolfree_to_html_with_options(include_str!("body.md")),
+        ),
+    );
+    wolfree_write(
+        "./docusaurus/build/instances.json",
+        include_str!("instances.json"),
+    );
+    wolfree_write(
+        "./docusaurus/build/404.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/acknowledgment/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/community/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/dmca/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/mirror/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/source/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_remove_dir_all("./docusaurus/build/assets/");
+}
diff --git a/rust/wolfree_sed_in_place/Cargo.toml b/rust/wolfree_sed_in_place/Cargo.toml
new file mode 100644
index 0000000..ab2b32f
--- /dev/null
+++ b/rust/wolfree_sed_in_place/Cargo.toml
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# This file is part of Wolfree.
+# 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.
+
+[package]
+name = "wolfree_sed_in_place"
+version = "23.7.31"
+edition = "2021"
+
+authors = ["See the commit history of the Git repositories: <https://try.gitea.io/wolfree>"]
+description = "This Rust program performs in-place search and replaces operations on all files within specified directories. It uses regular expressions to find occurrences of a given pattern in each file's contents and replaces them with the replacement text."
+license = "AGPL-3.0-or-later"
+repository = "https://try.gitea.io/wolfree"
+readme = "README.md"
+keywords = ["rust", "search", "replace", "regular expressions", "regex", "file", "in-place"]
+categories = ["command-line-utilities", "development-tools::build-utils", "web-programming", "template-engine"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+regex = "1"
+walkdir = "2"
diff --git a/rust/wolfree_sed_in_place/src/include_str.html b/rust/wolfree_sed_in_place/src/include_str.html
new file mode 100644
index 0000000..2fbe0f4
--- /dev/null
+++ b/rust/wolfree_sed_in_place/src/include_str.html
@@ -0,0 +1,76 @@
+<meta name="referrer" content="no-referrer" />
+
+<script type="module" src="/ajax/libs/jquery/3.7.0/jquery.min.js"></script>
+<script type="module" src="/ajax/libs/dompurify/3.0.5/purify.min.js"></script>
+<script type="module" src="/ajax/libs/wolfree/23.7.8/js/onload.js"></script>
+
+<link rel="preload" as="style" onload="this.onload = null; this.rel = 'stylesheet';"
+    href="/ajax/libs/wolfree/23.7.8/css/Placeholder.css" />
+<link rel="preload" as="style" onload="this.onload = null; this.rel = 'stylesheet';"
+    href="/ajax/libs/wolfree/23.7.8/css/PodsParser.css" />
+
+<style>
+    html>body>#__next>div>header {
+        visibility: hidden;
+        height: 5rem;
+    }
+
+    html>body>#__next>div>footer {
+        visibility: hidden;
+    }
+
+    html>body>#__next>div>main>main>span,
+    html>body>#__next>div>main>main a[href*="/pro/pricing/students/"],
+    html>body>#__next>div>main>main a[href*="/pro/pricing/students/"]~*,
+    html>body>#__next>div>main>main>div>a,
+    html>body>#__next>div>main>main>div>a>img[src*="../_next/static/images/Logo_"][alt*="WolframAlpha computational knowledge AI"],
+    html>body>#__next>div>main>main>div>div>nav>a~button,
+    html>body>#__next>div>main>main>div>div>nav>div>div>ul>li~li~li,
+    /* Derivative[9][y][x] == y[x] */
+    html>body>#__next>div>main>main>div>div>div[class=""],
+    html>body>#__next>div>main>main>div>div>div>section>section> :not(div, ul, header, button),
+    /* Wolfram|Alpha Copyable Plain Text */
+    html>body>#__next>div>main>main>div>div>div>section>section>header>h2> :not(span),
+    html>body>#__next>div>main>main>div>div>div>section>section>div> :not(h2, select, span, div),
+    html>body>#__next>div>main>main>div>div>div>section>section>div>div> :not(img, button, div, a),
+    html>body>#__next>div>main>main a[href*="/pro/pricing/"],
+    html>body>#__next>div>main>main a[href*="/pro/pricing/"]~*,
+    html>body>#__next>div>main>main a[href*="/pro-premium-expert-support"],
+    html>body>#__next>div>main>main a[href*="/pro-premium-expert-support"]~*,
+    /* "isGDPR": true */
+    html>body>#__next>div>section {
+        display: none;
+    }
+
+    html>body>header {
+        position: absolute;
+        width: 100%;
+        z-index: 1;
+    }
+
+    html>body>header>nav {
+        text-align: center;
+        display: flex;
+        max-width: 780px;
+        margin: auto;
+    }
+
+    html>body>header>nav>a {
+        font-family: sans-serif;
+        text-decoration: none;
+        flex: auto;
+        margin: 1rem 0;
+        padding: 1rem 0;
+    }
+</style>
+
+$0
+
+<header>
+    <nav>
+        <a href="../">Wolfree</a>
+        <a href="../mirror">Mirror</a>
+        <a href="../source">Source</a>
+    </nav>
+</header>
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
\ No newline at end of file
diff --git a/rust/wolfree_sed_in_place/src/include_str.tsx b/rust/wolfree_sed_in_place/src/include_str.tsx
new file mode 100644
index 0000000..3c8ff4e
--- /dev/null
+++ b/rust/wolfree_sed_in_place/src/include_str.tsx
@@ -0,0 +1,71 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * 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.
+ */
+
+// @ts-check
+
+const wolfreeLexicalScopeName = (() => {
+  const possibleLetters = Array();
+
+  for (let i = 32; i < 127; i++) {
+    possibleLetters.push(String.fromCharCode(i));
+  }
+
+  const possibleNames = possibleLetters.flatMap((x) =>
+    possibleLetters.map((y) => x + y)
+  );
+
+  const isValid = (name = String()) => {
+    try {
+      return (
+        typeof eval(name).value === "string" &&
+        typeof eval(name).i2d === "boolean"
+      );
+    } catch (error) {
+      return false;
+    }
+  };
+
+  const wolfreeLexicalScopeName = possibleNames.find(isValid);
+
+  if (typeof wolfreeLexicalScopeName !== "string") {
+    console.error({ wolfreeLexicalScopeName });
+    return "";
+  }
+
+  return wolfreeLexicalScopeName;
+})();
+
+(() => {
+  const get = (params = String()) => {
+    return new URLSearchParams(location.search).get(params);
+  };
+
+  eval(wolfreeLexicalScopeName).value = get("i") || "topic mathematics";
+  eval(wolfreeLexicalScopeName).i2d = get("i2d") === "true";
+})();
+
+/**
+ * Regex in regex - Rust
+ * https://docs.rs/regex/latest/regex/struct.Regex.html#replacement-string-syntax
+ * All instances of $ref in the replacement string are replaced with the substring corresponding to the capture group identified by ref.
+ * ref may be an integer corresponding to the index of the capture group (counted by order of opening parenthesis where 0 is the entire match) or it can be a name (consisting of letters, digits or underscores) corresponding to a named capture group.
+ */
+// @ts-ignore
+$0;
+
+(async () => {
+  (
+    await import(
+      // @ts-ignore
+      "../../../ajax/libs/wolfree/23.7.8/js/Entrypoint.js"
+    )
+  ).default({
+    input: eval(wolfreeLexicalScopeName).value,
+    i2d: eval(wolfreeLexicalScopeName).i2d,
+    extraPodstates: [],
+  });
+})();
diff --git a/rust/wolfree_sed_in_place/src/main.rs b/rust/wolfree_sed_in_place/src/main.rs
new file mode 100644
index 0000000..7d56889
--- /dev/null
+++ b/rust/wolfree_sed_in_place/src/main.rs
@@ -0,0 +1,115 @@
+//! The `wolfree_sed_in_place` crate provides a function for performing in-place replacements of patterns in multiple files using regular expressions.
+//! It allows you to recursively process all files within a specified directory and replace occurrences of a given pattern with a specified replacement string.
+
+#![allow(clippy::blanket_clippy_restriction_lints)]
+#![allow(clippy::exit)]
+#![allow(clippy::print_stderr)]
+#![allow(clippy::implicit_return)]
+
+/* SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * 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.
+ */
+
+use regex::Regex;
+use std::fs;
+use walkdir::WalkDir;
+
+/// Perform in-place replacements on files in a given directory, using regular expressions.
+///
+/// This function walks through all the files in the specified `directory_path`,
+/// filters out directories, and applies a regular expression-based replacement
+/// on the contents of each file.
+///
+/// # Arguments
+///
+/// * `directory_path`: A string slice representing the path of the directory to traverse.
+/// * `pattern`: A string slice containing the regular expression pattern to search for.
+/// * `replacement`: A string slice representing the replacement for each matched pattern.
+///
+/// # Examples
+///
+/// ```rust
+/// // Replace a specific pattern in the file contents in the "./data/" directory.
+/// wolfree_sed_in_place("./data/", r"\bFoo\b", "Bar");
+/// ```
+///
+/// This example replaces all occurrences of the word "Foo" with "Bar" in the files inside the "data" directory.
+fn wolfree_sed_in_place(directory_path: &str, pattern: &str, replacement: &str) {
+    // Compile the regular expression pattern
+    let regex = match Regex::new(pattern) {
+        Ok(re) => re,
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    };
+
+    // Create a directory walker and filter out non-file entries
+    let walker = WalkDir::new(directory_path)
+        .into_iter()
+        .filter_map(Result::ok)
+        .filter(|entry| !entry.file_type().is_dir());
+
+    // Process each file in the directory
+    for entry in walker {
+        let file_path = entry.path();
+
+        // Read the file's contents into a string
+        let file_contents = match fs::read_to_string(file_path) {
+            Ok(contents) => contents,
+            Err(err) => {
+                eprintln!("Error: {err}",);
+                std::process::exit(1);
+            }
+        };
+
+        // Perform the regex replacement on the file's contents
+        let modified_contents = regex.replace(&file_contents, replacement);
+        let modified_contents_as_ref = modified_contents.as_ref();
+
+        // Write the modified contents back to the file, overwriting its previous contents
+        match fs::write(file_path, modified_contents_as_ref) {
+            Ok(_) => (),
+            Err(err) => {
+                eprintln!("Error: {err}",);
+                std::process::exit(1);
+            }
+        };
+    }
+}
+
+/// Entry point of the program.
+/// Demonstrates using `wolfree_sed_in_place` function to perform in-place replacements on files in specific directories.
+fn main() {
+    wolfree_sed_in_place(
+        "./docusaurus/build/input/",
+        "</head><body>",
+        include_str!("include_str.html"),
+    );
+
+    wolfree_sed_in_place(
+        "./docusaurus/build/_next/static/chunks/",
+        r"try(.{0,100}?)generateEncodedJSONFromValue(.*?)unescapeForUrl(.*?)catch(.*?)\{}",
+        include_str!("include_str.tsx"),
+    );
+
+    // console error:
+    //     _app-daabd76ef4fe402d.js:5
+    //     WebSocket connection to 'wss://localhost/n/v1/api/fetcher/results' failed:
+    //     startWebsocket @ _app-daabd76ef4fe402d.js:5
+    //     send           @ _app-daabd76ef4fe402d.js:5
+    //     sendMessage    @ 1695-ae743311a23f8eb5.js:1
+    //     newQuery       @ 1695-ae743311a23f8eb5.js:78
+    //     newQuery       @ 1695-ae743311a23f8eb5.js:78
+    // fix:
+    //     Override the hostname in the minified JavaScript source code.
+    wolfree_sed_in_place(
+        "./docusaurus/build/_next/static/chunks/pages/",
+        "window.location.hostname",
+        "'www.wolframalpha.com'",
+    );
+}
+
+// regex101: build, test, and debug regex
+// https://regex101.com/