25877d05ac
- imported pbs-api-types/src/common_regex.rs from old proxmox crate - use hex crate to generate/parse hex digest - remove all reference to proxmox crate (use proxmox-sys and proxmox-serde instead) Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
97 lines
2.7 KiB
Rust
97 lines
2.7 KiB
Rust
//! Tools and utilities
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//!
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//! This is a collection of small and useful tools.
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use std::any::Any;
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use anyhow::{bail, format_err, Error};
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use openssl::hash::{hash, DigestBytes, MessageDigest};
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use proxmox_http::{
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client::SimpleHttp,
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client::SimpleHttpOptions,
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ProxyConfig,
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};
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pub mod apt;
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pub mod config;
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pub mod disks;
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pub mod statistics;
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pub mod subscription;
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pub mod systemd;
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pub mod ticket;
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pub mod parallel_handler;
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pub use parallel_handler::ParallelHandler;
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/// Shortcut for md5 sums.
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pub fn md5sum(data: &[u8]) -> Result<DigestBytes, Error> {
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hash(MessageDigest::md5(), data).map_err(Error::from)
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}
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pub fn get_hardware_address() -> Result<String, Error> {
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static FILENAME: &str = "/etc/ssh/ssh_host_rsa_key.pub";
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let contents = proxmox_sys::fs::file_get_contents(FILENAME)
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.map_err(|e| format_err!("Error getting host key - {}", e))?;
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let digest = md5sum(&contents)
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.map_err(|e| format_err!("Error digesting host key - {}", e))?;
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Ok(hex::encode(&digest).to_uppercase())
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}
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pub fn assert_if_modified(digest1: &str, digest2: &str) -> Result<(), Error> {
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if digest1 != digest2 {
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bail!("detected modified configuration - file changed by other user? Try again.");
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}
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Ok(())
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}
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/// Detect modified configuration files
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///
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/// This function fails with a reasonable error message if checksums do not match.
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pub fn detect_modified_configuration_file(digest1: &[u8;32], digest2: &[u8;32]) -> Result<(), Error> {
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if digest1 != digest2 {
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bail!("detected modified configuration - file changed by other user? Try again.");
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}
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Ok(())
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}
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/// An easy way to convert types to Any
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///
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/// Mostly useful to downcast trait objects (see RpcEnvironment).
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pub trait AsAny {
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fn as_any(&self) -> &dyn Any;
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}
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impl<T: Any> AsAny for T {
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fn as_any(&self) -> &dyn Any {
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self
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}
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}
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/// The default 2 hours are far too long for PBS
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pub const PROXMOX_BACKUP_TCP_KEEPALIVE_TIME: u32 = 120;
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pub const DEFAULT_USER_AGENT_STRING: &'static str = "proxmox-backup-client/1.0";
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/// Returns a new instance of `SimpleHttp` configured for PBS usage.
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pub fn pbs_simple_http(proxy_config: Option<ProxyConfig>) -> SimpleHttp {
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let options = SimpleHttpOptions {
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proxy_config,
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user_agent: Some(DEFAULT_USER_AGENT_STRING.to_string()),
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tcp_keepalive: Some(PROXMOX_BACKUP_TCP_KEEPALIVE_TIME),
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..Default::default()
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};
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SimpleHttp::with_options(options)
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}
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pub fn setup_safe_path_env() {
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std::env::set_var("PATH", "/sbin:/bin:/usr/sbin:/usr/bin");
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// Make %ENV safer - as suggested by https://perldoc.perl.org/perlsec.html
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for name in &["IFS", "CDPATH", "ENV", "BASH_ENV"] {
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std::env::remove_var(name);
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}
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}
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