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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + Copy Translator, using DeepL api + Copyright (C) 2021 zu1k + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. 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Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..a5d39bb --- /dev/null +++ b/Makefile @@ -0,0 +1,26 @@ +NAME=sdusrun +TARGET=x86_64-unknown-linux-gnu + +cbuild: + cargo build --release + cargo strip + strip -s target/release/$(NAME) + upx --best target/release/$(NAME) + +xbuild: + xargo build --target $(TARGET) --release + strip -s target/$(TARGET)/release/$(NAME) + upx --best target/$(TARGET)/release/$(NAME) + +clean: + cargo clean + +install_deps: + cargo install cargo-strip + cargo install xargo + +fmt: + cargo fmt --all + +clippy: + cargo clippy diff --git a/README.md b/README.md new file mode 100644 index 0000000..97992d0 --- /dev/null +++ b/README.md @@ -0,0 +1,3 @@ +# SDUSrun + +校园网深澜认证登录 diff --git a/Xargo.toml b/Xargo.toml new file mode 100644 index 0000000..50413e6 --- /dev/null +++ b/Xargo.toml @@ -0,0 +1,2 @@ +[dependencies] +std = { default-features = false, features=[ "panic_immediate_abort" ] } \ No newline at end of file diff --git a/rust-toolchain b/rust-toolchain new file mode 100644 index 0000000..a316e85 --- /dev/null +++ b/rust-toolchain @@ -0,0 +1,3 @@ +[toolchain] +channel = "nightly" +components = ["rustfmt", "clippy"] \ No newline at end of file diff --git a/rustfmt.toml b/rustfmt.toml new file mode 100644 index 0000000..7d9633c --- /dev/null +++ b/rustfmt.toml @@ -0,0 +1,4 @@ +version = "Two" + +indent_style = "Block" +imports_granularity = "Crate" \ No newline at end of file diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..ab3ae31 --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,8 @@ +#[macro_use] +extern crate lazy_static; + +mod srun; +pub use srun::SrunClient; + +mod xencode; +pub use xencode::param_i; diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..8d08b76 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,5 @@ +fn main() { + let mut client = + sdusrun::SrunClient::new("http://auth_gateway", "username", "password", "your ip"); + client.login().expect("login err"); +} diff --git a/src/srun.rs b/src/srun.rs new file mode 100644 index 0000000..45f0efb --- /dev/null +++ b/src/srun.rs @@ -0,0 +1,144 @@ +use crate::param_i; +use hmac::{Hmac, Mac, NewMac}; +use md5::Md5; +use serde::Deserialize; +use sha1::{Digest, Sha1}; + +const PATH_GET_CHALLENGE: &str = "/cgi-bin/get_challenge"; +const PATH_LOGIN: &str = "/cgi-bin/srun_portal"; + +#[derive(Default, Debug)] +pub struct SrunClient { + host: String, + challenge: ChallengeResponse, + + username: String, + password: String, + ip: String, + acid: i32, + token: String, + n: i32, + stype: i32, + param_i: String, + double_stack: i32, + os: String, + name: String, + time: u64, +} + +impl SrunClient { + pub fn new(host: &str, username: &str, password: &str, ip: &str) -> Self { + Self { + username: username.to_string(), + password: password.to_string(), + ip: ip.to_string(), + host: host.to_string(), + acid: 12, + n: 200, + stype: 1, + double_stack: 0, + os: "Windows 10".to_string(), + name: "Windows".to_string(), + ..Default::default() + } + } + + fn get_token(&mut self) -> Result> { + self.time = unix_second(); + + let resp = ureq::get((self.host.clone() + PATH_GET_CHALLENGE).as_str()) + .query("callback", "sdu") + .query("username", &self.username) + .query("ip", &self.ip) + .query("_", &self.time.to_string()) + .call()? + .into_string()?; + let resp = resp.as_bytes(); + + self.challenge = serde_json::from_slice(&resp[4..resp.len() - 1])?; + println!("{:#?}", &self.challenge); + self.token = self.challenge.challenge.clone(); + self.time = self.challenge.st; + Ok(self.token.clone()) + } + + pub fn login(&mut self) -> Result> { + self.get_token()?; + + let hmd5 = { + let mut mac = Hmac::::new_from_slice(self.token.as_bytes()).expect("aa"); + mac.update(self.password.as_bytes()); + let result = mac.finalize(); + format!("{:x}", result.into_bytes()) + }; + + self.param_i = param_i( + &self.username, + &self.password, + &self.ip, + self.acid, + &self.token, + ); + + let check_sum = { + let check_sum = vec![ + "", + &self.username, + &hmd5, + &self.acid.to_string(), + &self.ip, + &self.n.to_string(), + &self.stype.to_string(), + &self.param_i, + ] + .join(&self.token); + let mut sha1_hasher = Sha1::new(); + sha1_hasher.update(check_sum); + format!("{:x}", sha1_hasher.finalize()) + }; + + let resp = ureq::get((self.host.clone() + PATH_LOGIN).as_str()) + .query("callback", "sdu") + .query("action", "login") + .query("username", &self.username) + .query("password", format!("{{MD5}}{}", hmd5).as_str()) + .query("ip", &self.ip) + .query("ac_id", self.acid.to_string().as_str()) + .query("n", self.n.to_string().as_str()) + .query("type", self.stype.to_string().as_str()) + .query("os", &self.os) + .query("name", &self.name) + .query("double_stack", self.double_stack.to_string().as_str()) + .query("info", &self.param_i) + .query("chksum", &check_sum) + .query("_", &self.time.to_string()) + .call()? + .into_string()?; + + println!("{}", resp); + Ok(resp) + } +} + +#[allow(dead_code)] +#[derive(Debug, Default, Deserialize)] +struct ChallengeResponse { + challenge: String, + client_ip: String, + ecode: i32, + error_msg: String, + expire: String, + online_ip: String, + res: String, + srun_ver: String, + st: u64, +} + +use std::time::{SystemTime, UNIX_EPOCH}; + +fn unix_second() -> u64 { + SystemTime::now() + .duration_since(UNIX_EPOCH) + .expect("time went backwards") + .as_secs() +} diff --git a/src/xencode.rs b/src/xencode.rs new file mode 100644 index 0000000..19fde2b --- /dev/null +++ b/src/xencode.rs @@ -0,0 +1,96 @@ +use base64::{ + alphabet::Alphabet, + engine::fast_portable::{FastPortable, PAD}, +}; + +const BASE64_ALPHABET: &str = "LVoJPiCN2R8G90yg+hmFHuacZ1OWMnrsSTXkYpUq/3dlbfKwv6xztjI7DeBE45QA"; +lazy_static! { + static ref BASE64_ENGINE: FastPortable = { + let alphabet = Alphabet::from_str(BASE64_ALPHABET).unwrap(); + FastPortable::from(&alphabet, PAD) + }; +} + +fn mix(buffer: &[u8], append_size: bool) -> Vec { + let mut res: Vec = buffer + .chunks(4) + .map(|chunk| { + u32::from_le_bytes(chunk.try_into().unwrap_or_else(|_| { + let mut last_chunk = [0u8, 0, 0, 0]; + last_chunk[..chunk.len()].clone_from_slice(chunk); + last_chunk + })) + }) + .collect(); + if append_size { + res.push(buffer.len() as u32); + } + res +} + +fn splite(buffer: Vec, include_size: bool) -> Vec { + let len = buffer.len(); + let size_record = buffer[len - 1]; + if include_size { + let size = ((len - 1) * 4) as u32; + if size_record < size - 3 || size_record > size { + return "".into(); + } + } + + let mut buffer: Vec = buffer.iter().flat_map(|i| i.to_le_bytes()).collect(); + if include_size { + buffer.truncate(size_record as usize); + } + buffer +} + +fn x_encode(msg: &str, key: &str) -> Vec { + if msg.is_empty() { + return vec![]; + } + + let mut msg = mix(msg.as_bytes(), true); + let key = mix(key.as_bytes(), false); + + let last = msg.len() - 1; + let mut right = msg[last]; + let c: u32 = 0x9e3779b9; // 0x9e3779b9 = 0x86014019 | 0x183639A0 + let mut d: u32 = 0; + + let count = 6 + 52 / msg.len(); + for _ in 0..count { + d = d.wrapping_add(c); + let e = d >> 2 & 3; + + for p in 0..last { + let left = msg[p + 1]; + let m = ((right >> 5) ^ (left << 2)) + .wrapping_add((left >> 3 ^ right << 4) ^ (d ^ left)) + .wrapping_add(key[(p & 3) ^ e as usize] ^ right); + msg[p] = msg[p].wrapping_add(m); + right = msg[p]; + } + + let left = msg[0]; + let m = (right >> 5 ^ left << 2) + .wrapping_add((left >> 3 ^ right << 4) ^ (d ^ left)) + .wrapping_add(key[(last & 3) ^ e as usize] ^ right); + msg[last] = m.wrapping_add(msg[last]); + right = msg[last]; + } + splite(msg, false) +} + +pub fn param_i(username: &str, password: &str, ip: &str, acid: i32, token: &str) -> String { + let info = serde_json::json!({ + "username": username, + "password": password, + "ip": ip, + "acid": acid, + "enc_ver": "srun_bx1", + }) + .to_string(); + let xen = x_encode(info.as_str(), token); + String::from("{SRBX1}") + base64::encode_engine(xen, &*BASE64_ENGINE).as_str() +}