init CUSA

Signed-off-by: Jia Chao <jiac13@chinaunicom.cn>

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cusa"
+version = "0.1.0"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.36"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "serde"
+version = "1.0.204"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc76f558e0cbb2a839d37354c575f1dc3fdc6546b5be373ba43d95f231bf7c12"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.204"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc4b9b9bf2add8093d3f2c0204471e951b2285580335de42f9d2534f3ae7a8af"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"

Cargo.toml

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+[package]
+name = "cusa"
+version = "0.1.0"
+edition = "2021"
+description = "cusa"
+
+[dependencies]
+serde = { version = "1", features = ["serde_derive"] }

README.md

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+CUSA: CULinux SA Info

src/lib.rs

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+use std::fmt;
+use std::str::FromStr;
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Eq, PartialEq, Hash, Serialize, Deserialize)]
+pub struct CUSA {
+    // sa id
+    pub id: String,
+
+    // sa's url
+    pub url: String,
+
+    // sa title
+    pub title: String,
+
+    // the major severity
+    pub severity: Severity,
+
+    pub description: String,
+
+    // 包含的 cve 列表
+    pub cves: Vec<CVE>,
+}
+
+#[derive(Debug, Clone, PartialOrd, Ord, PartialEq, Eq, Hash, Serialize, Deserialize)]
+pub enum Severity {
+    None,
+    Low,
+    Medium,   // Moderate
+    High,     // Important
+    Critical,
+}
+
+impl Severity {
+    pub fn new() -> Self {
+        Severity::None
+    }
+}
+
+// 为枚举 Severity 实现 FromStr trait
+impl FromStr for Severity {
+    type Err = ParseSeverityError;
+
+    // bug fix: 华为不干人事儿，单词都能拼错，现在只取首字母
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s.to_lowercase().chars().next() {
+            Some('n') => Ok(Severity::None),
+            Some('l') => Ok(Severity::Low),
+            Some('m') => Ok(Severity::Medium),
+            Some('i') | Some('h') => Ok(Severity::High),
+            Some('c') => Ok(Severity::Critical),
+            _ => Err(ParseSeverityError::InvalidSeverity),
+        }
+    }
+}
+
+// 定义 ParseSeverityError 枚举类型来表示解析错误
+#[derive(Debug, Clone)]
+pub enum ParseSeverityError {
+    InvalidSeverity,
+}
+
+// 为 ParseSeverityError 实现 Display trait，以便更好地显示错误信息
+impl fmt::Display for ParseSeverityError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            ParseSeverityError::InvalidSeverity => write!(f, "Invalid severity level"),
+        }
+    }
+}
+
+// 为 ParseSeverityError 实现 std::error::Error trait
+impl std::error::Error for ParseSeverityError {}
+
+#[derive(Debug, Clone, Eq, PartialEq, Hash, Serialize, Deserialize)]
+pub struct CVE {
+    // cve id
+    pub id: String,
+
+    // cve 官网地址
+    pub url: String,
+
+    // 严重级别
+    pub severity: Severity,
+}

src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}