commit bc2bfcd5e4bb6c7ff875ffe060b0bfd1681ab67d Author: eeeeeta Date: Thu Jun 14 16:18:17 2018 +0100 initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..53eaa21 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +/target +**/*.rs.bk diff --git a/Cargo.lock b/Cargo.lock new file mode 100644 index 0000000..cbdeb74 --- /dev/null +++ b/Cargo.lock @@ -0,0 +1,260 @@ +[[package]] +name = "aho-corasick" +version = "0.6.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)", +] + +[[package]] +name = "arrayref" +version = "0.3.4" +source = "registry+https://github.com/rust-lang/crates.io-index" + +[[package]] +name = "better-users" +version = "0.1.0" +dependencies = [ + "csv 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)", + "regex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)", + "serde 1.0.66 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distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..309f0f5 --- /dev/null +++ b/README.md @@ -0,0 +1,9 @@ +tilde.town users.json generator +=============================== + +This is a more modern version of the users.py script from [tildetown_ring](https://github.com/aBathologist/tildetown_ring), +made for the [tilde.town](https://tilde.town/) intentional digital community. + +If you don't know what tilde.town is, this isn't very interesting to you. +If you do, check out [the users.json file](http://tilde.town/~eeeeeta/users.json) +that this thing makes! diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..df7ee06 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,124 @@ +extern crate csv; +extern crate serde; +#[macro_use] extern crate serde_derive; +extern crate serde_json; +extern crate regex; +extern crate sha2; + +use csv::ReaderBuilder; +use std::collections::HashMap; +use regex::Regex; +use std::fs::{self, File}; +use std::io::Write; +use sha2::{Sha256, Digest}; +use std::time::UNIX_EPOCH; + +#[derive(Serialize, Debug)] +pub struct UsersEntry { + homepage: String, + modtime: u64, + edited: usize, + ringmember: usize +} + +#[derive(Deserialize, Debug)] +pub struct PasswdLine { + username: String, + passwd: String, + uid: u32, + gid: u32, + gecos: String, + home: String, + interp: String +} + +pub static TILDE_URL: &str = "https://tilde.town/~"; + +fn main() { + println!("[+] eta's users.json generator"); + let output = ::std::env::args().nth(1) + .expect("please provide an output filename as the 1st argument"); + println!("[+] outputting to {}", output); + println!("[+] reading /etc/login.defs"); + let defs = fs::read_to_string("/etc/login.defs") + .expect("reading /etc/login.defs"); + let re_uid_min = Regex::new(r"UID_MIN\s+(\d*)").unwrap(); + let re_uid_max = Regex::new(r"UID_MAX\s+(\d*)").unwrap(); + let uid_min: u32 = re_uid_min.captures(&defs).unwrap()[1].parse().unwrap(); + let uid_max: u32 = re_uid_max.captures(&defs).unwrap()[1].parse().unwrap(); + println!("[+] UID range: {}-{}", uid_min, uid_max); + println!("[+] reading /etc/skel/public_html/index.html"); + let mut hasher = Sha256::default(); + let def_html = fs::read_to_string("/etc/skel/public_html/index.html") + .expect("reading default html"); + hasher.input(def_html.as_bytes()); + let hash = hasher.result(); + println!("[+] reading /etc/passwd"); + let mut rdr = ReaderBuilder::new() + .delimiter(b':') + .has_headers(false) + .from_path("/etc/passwd") + .expect("reading /etc/passwd"); + let mut ret: HashMap = HashMap::new(); + for rec in rdr.deserialize() { + let rec: PasswdLine = rec.expect("parsing passwd line"); + println!("[+] processing user {}", rec.username); + if rec.uid > uid_max || rec.uid < uid_min { + println!("[*] system user, skipping"); + continue; + } + if rec.passwd == "" { + println!("[*] user disabled, skipping"); + continue; + } + let path = format!("/home/{}/public_html/index.html", rec.username); + match fs::metadata(&path) { + Ok(m) => { + match fs::read_to_string(&path) { + Ok(h) => { + let mut hasher = Sha256::default(); + hasher.input(h.as_bytes()); + let edited = if hasher.result() == hash { + 0 + } + else { + 1 + }; + let ringmember = if h.find("id=\"tilde_town_ring\"").is_some() { + 1 + } + else { + 0 + }; + let modified = m.modified().unwrap(); + let modtime = match modified.duration_since(UNIX_EPOCH) { + Ok(t) => t.as_secs(), + Err(_) => 0 + }; + ret.insert(rec.username.clone(), UsersEntry { + homepage: format!("{}{}", TILDE_URL, rec.username), + edited, + ringmember, + modtime + }); + }, + Err(e) => { + println!("[*] couldn't read {}, skipping: {}", path, e); + continue; + } + } + }, + Err(e) => { + println!("[*] couldn't get metadata for {}, skipping: {}", path, e); + continue; + } + } + } + println!("[+] writing json"); + let json = serde_json::to_string_pretty(&ret).expect("serializing"); + let mut file = File::create(output) + .expect("creating output file"); + file.write_all(json.as_bytes()) + .expect("writing to output file"); + println!("[+] done!"); +}