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client: extract common functions to proxmox_client_tools module

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...including common schemata, connect(), extract_*() and completion
functions.

For later use with proxmox-file-restore binary.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
This commit is contained in:
Stefan Reiter 2021-02-16 18:06:57 +01:00 committed by Dietmar Maurer
parent 38a81c6b46
commit f1a83e9759
2 changed files with 369 additions and 358 deletions
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361
src/bin/proxmox-backup-client.rs
View File

@ -1,4 +1,4 @@
use std::collections::{HashSet, HashMap};
use std::collections::HashSet;
use std::convert::TryFrom;
use std::io::{self, Read, Write, Seek, SeekFrom};
use std::os::unix::io::{FromRawFd, RawFd};
@ -33,7 +33,6 @@ use proxmox::{
use pxar::accessor::{MaybeReady, ReadAt, ReadAtOperation};
use proxmox_backup::tools;
use proxmox_backup::api2::access::user::UserWithTokens;
use proxmox_backup::api2::types::*;
use proxmox_backup::api2::version;
use proxmox_backup::client::*;
@ -68,68 +67,8 @@ use proxmox_backup::backup::{
mod proxmox_backup_client;
use proxmox_backup_client::*;
const ENV_VAR_PBS_FINGERPRINT: &str = "PBS_FINGERPRINT";
const ENV_VAR_PBS_PASSWORD: &str = "PBS_PASSWORD";
pub const REPO_URL_SCHEMA: Schema = StringSchema::new("Repository URL.")
.format(&BACKUP_REPO_URL)
.max_length(256)
.schema();
pub const KEYFILE_SCHEMA: Schema =
StringSchema::new("Path to encryption key. All data will be encrypted using this key.")
.schema();
pub const KEYFD_SCHEMA: Schema =
IntegerSchema::new("Pass an encryption key via an already opened file descriptor.")
.minimum(0)
.schema();
pub const MASTER_PUBKEY_FILE_SCHEMA: Schema = StringSchema::new(
"Path to master public key. The encryption key used for a backup will be encrypted using this key and appended to the backup.")
.schema();
pub const MASTER_PUBKEY_FD_SCHEMA: Schema =
IntegerSchema::new("Pass a master public key via an already opened file descriptor.")
.minimum(0)
.schema();
const CHUNK_SIZE_SCHEMA: Schema = IntegerSchema::new(
"Chunk size in KB. Must be a power of 2.")
.minimum(64)
.maximum(4096)
.default(4096)
.schema();
fn get_default_repository() -> Option<String> {
std::env::var("PBS_REPOSITORY").ok()
}
pub fn extract_repository_from_value(
param: &Value,
) -> Result<BackupRepository, Error> {
let repo_url = param["repository"]
.as_str()
.map(String::from)
.or_else(get_default_repository)
.ok_or_else(|| format_err!("unable to get (default) repository"))?;
let repo: BackupRepository = repo_url.parse()?;
Ok(repo)
}
fn extract_repository_from_map(
param: &HashMap<String, String>,
) -> Option<BackupRepository> {
param.get("repository")
.map(String::from)
.or_else(get_default_repository)
.and_then(|repo_url| repo_url.parse::<BackupRepository>().ok())
}
mod proxmox_client_tools;
use proxmox_client_tools::*;
fn record_repository(repo: &BackupRepository) {
@ -179,52 +118,6 @@ fn record_repository(repo: &BackupRepository) {
let _ = replace_file(path, new_data.to_string().as_bytes(), CreateOptions::new());
}
pub fn complete_repository(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let base = match BaseDirectories::with_prefix("proxmox-backup") {
Ok(v) => v,
_ => return result,
};
// usually $HOME/.cache/proxmox-backup/repo-list
let path = match base.place_cache_file("repo-list") {
Ok(v) => v,
_ => return result,
};
let data = file_get_json(&path, None).unwrap_or_else(|_| json!({}));
if let Some(map) = data.as_object() {
for (repo, _count) in map {
result.push(repo.to_owned());
}
}
result
}
fn connect(repo: &BackupRepository) -> Result<HttpClient, Error> {
connect_do(repo.host(), repo.port(), repo.auth_id())
.map_err(|err| format_err!("error building client for repository {} - {}", repo, err))
}
fn connect_do(server: &str, port: u16, auth_id: &Authid) -> Result<HttpClient, Error> {
let fingerprint = std::env::var(ENV_VAR_PBS_FINGERPRINT).ok();
use std::env::VarError::*;
let password = match std::env::var(ENV_VAR_PBS_PASSWORD) {
Ok(p) => Some(p),
Err(NotUnicode(_)) => bail!(format!("{} contains bad characters", ENV_VAR_PBS_PASSWORD)),
Err(NotPresent) => None,
};
let options = HttpClientOptions::new_interactive(password, fingerprint);
HttpClient::new(server, port, auth_id, options)
}
async fn api_datastore_list_snapshots(
client: &HttpClient,
store: &str,
@ -1483,27 +1376,6 @@ async fn create_backup(
Ok(Value::Null)
}
fn complete_backup_source(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let data: Vec<&str> = arg.splitn(2, ':').collect();
if data.len() != 2 {
result.push(String::from("root.pxar:/"));
result.push(String::from("etc.pxar:/etc"));
return result;
}
let files = tools::complete_file_name(data[1], param);
for file in files {
result.push(format!("{}:{}", data[0], file));
}
result
}
async fn dump_image<W: Write>(
client: Arc<BackupReader>,
crypt_config: Option<Arc<CryptConfig>>,
@ -1923,233 +1795,6 @@ async fn status(param: Value) -> Result<Value, Error> {
Ok(Value::Null)
}
// like get, but simply ignore errors and return Null instead
async fn try_get(repo: &BackupRepository, url: &str) -> Value {
let fingerprint = std::env::var(ENV_VAR_PBS_FINGERPRINT).ok();
let password = std::env::var(ENV_VAR_PBS_PASSWORD).ok();
// ticket cache, but no questions asked
let options = HttpClientOptions::new_interactive(password, fingerprint)
.interactive(false);
let client = match HttpClient::new(repo.host(), repo.port(), repo.auth_id(), options) {
Ok(v) => v,
_ => return Value::Null,
};
let mut resp = match client.get(url, None).await {
Ok(v) => v,
_ => return Value::Null,
};
if let Some(map) = resp.as_object_mut() {
if let Some(data) = map.remove("data") {
return data;
}
}
Value::Null
}
fn complete_backup_group(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_backup_group_do(param).await })
}
async fn complete_backup_group_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let path = format!("api2/json/admin/datastore/{}/groups", repo.store());
let data = try_get(&repo, &path).await;
if let Some(list) = data.as_array() {
for item in list {
if let (Some(backup_id), Some(backup_type)) =
(item["backup-id"].as_str(), item["backup-type"].as_str())
{
result.push(format!("{}/{}", backup_type, backup_id));
}
}
}
result
}
pub fn complete_group_or_snapshot(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_group_or_snapshot_do(arg, param).await })
}
async fn complete_group_or_snapshot_do(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
if arg.matches('/').count() < 2 {
let groups = complete_backup_group_do(param).await;
let mut result = vec![];
for group in groups {
result.push(group.to_string());
result.push(format!("{}/", group));
}
return result;
}
complete_backup_snapshot_do(param).await
}
fn complete_backup_snapshot(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_backup_snapshot_do(param).await })
}
async fn complete_backup_snapshot_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let path = format!("api2/json/admin/datastore/{}/snapshots", repo.store());
let data = try_get(&repo, &path).await;
if let Some(list) = data.as_array() {
for item in list {
if let (Some(backup_id), Some(backup_type), Some(backup_time)) =
(item["backup-id"].as_str(), item["backup-type"].as_str(), item["backup-time"].as_i64())
{
if let Ok(snapshot) = BackupDir::new(backup_type, backup_id, backup_time) {
result.push(snapshot.relative_path().to_str().unwrap().to_owned());
}
}
}
}
result
}
fn complete_server_file_name(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_server_file_name_do(param).await })
}
async fn complete_server_file_name_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let snapshot: BackupDir = match param.get("snapshot") {
Some(path) => {
match path.parse() {
Ok(v) => v,
_ => return result,
}
}
_ => return result,
};
let query = tools::json_object_to_query(json!({
"backup-type": snapshot.group().backup_type(),
"backup-id": snapshot.group().backup_id(),
"backup-time": snapshot.backup_time(),
})).unwrap();
let path = format!("api2/json/admin/datastore/{}/files?{}", repo.store(), query);
let data = try_get(&repo, &path).await;
if let Some(list) = data.as_array() {
for item in list {
if let Some(filename) = item["filename"].as_str() {
result.push(filename.to_owned());
}
}
}
result
}
fn complete_archive_name(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
complete_server_file_name(arg, param)
.iter()
.map(|v| tools::format::strip_server_file_extension(&v))
.collect()
}
pub fn complete_pxar_archive_name(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
complete_server_file_name(arg, param)
.iter()
.filter_map(|name| {
if name.ends_with(".pxar.didx") {
Some(tools::format::strip_server_file_extension(name))
} else {
None
}
})
.collect()
}
pub fn complete_img_archive_name(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
complete_server_file_name(arg, param)
.iter()
.filter_map(|name| {
if name.ends_with(".img.fidx") {
Some(tools::format::strip_server_file_extension(name))
} else {
None
}
})
.collect()
}
fn complete_chunk_size(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let mut size = 64;
loop {
result.push(size.to_string());
size *= 2;
if size > 4096 { break; }
}
result
}
fn complete_auth_id(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_auth_id_do(param).await })
}
async fn complete_auth_id_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let data = try_get(&repo, "api2/json/access/users?include_tokens=true").await;
if let Ok(parsed) = serde_json::from_value::<Vec<UserWithTokens>>(data) {
for user in parsed {
result.push(user.userid.to_string());
for token in user.tokens {
result.push(token.tokenid.to_string());
}
}
};
result
}
use proxmox_backup::client::RemoteChunkReader;
/// This is a workaround until we have cleaned up the chunk/reader/... infrastructure for better
/// async use!

366
src/bin/proxmox_client_tools/mod.rs Normal file
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@ -0,0 +1,366 @@
//! Shared tools useful for common CLI clients.
use std::collections::HashMap;
use anyhow::{bail, format_err, Error};
use serde_json::{json, Value};
use xdg::BaseDirectories;
use proxmox::{
api::schema::*,
tools::fs::file_get_json,
};
use proxmox_backup::api2::access::user::UserWithTokens;
use proxmox_backup::api2::types::*;
use proxmox_backup::backup::BackupDir;
use proxmox_backup::client::*;
use proxmox_backup::tools;
const ENV_VAR_PBS_FINGERPRINT: &str = "PBS_FINGERPRINT";
const ENV_VAR_PBS_PASSWORD: &str = "PBS_PASSWORD";
pub const REPO_URL_SCHEMA: Schema = StringSchema::new("Repository URL.")
.format(&BACKUP_REPO_URL)
.max_length(256)
.schema();
pub const KEYFILE_SCHEMA: Schema =
StringSchema::new("Path to encryption key. All data will be encrypted using this key.")
.schema();
pub const KEYFD_SCHEMA: Schema =
IntegerSchema::new("Pass an encryption key via an already opened file descriptor.")
.minimum(0)
.schema();
pub const MASTER_PUBKEY_FILE_SCHEMA: Schema = StringSchema::new(
"Path to master public key. The encryption key used for a backup will be encrypted using this key and appended to the backup.")
.schema();
pub const MASTER_PUBKEY_FD_SCHEMA: Schema =
IntegerSchema::new("Pass a master public key via an already opened file descriptor.")
.minimum(0)
.schema();
pub const CHUNK_SIZE_SCHEMA: Schema = IntegerSchema::new("Chunk size in KB. Must be a power of 2.")
.minimum(64)
.maximum(4096)
.default(4096)
.schema();
pub fn get_default_repository() -> Option<String> {
std::env::var("PBS_REPOSITORY").ok()
}
pub fn extract_repository_from_value(param: &Value) -> Result<BackupRepository, Error> {
let repo_url = param["repository"]
.as_str()
.map(String::from)
.or_else(get_default_repository)
.ok_or_else(|| format_err!("unable to get (default) repository"))?;
let repo: BackupRepository = repo_url.parse()?;
Ok(repo)
}
pub fn extract_repository_from_map(param: &HashMap<String, String>) -> Option<BackupRepository> {
param
.get("repository")
.map(String::from)
.or_else(get_default_repository)
.and_then(|repo_url| repo_url.parse::<BackupRepository>().ok())
}
pub fn connect(repo: &BackupRepository) -> Result<HttpClient, Error> {
connect_do(repo.host(), repo.port(), repo.auth_id())
.map_err(|err| format_err!("error building client for repository {} - {}", repo, err))
}
fn connect_do(server: &str, port: u16, auth_id: &Authid) -> Result<HttpClient, Error> {
let fingerprint = std::env::var(ENV_VAR_PBS_FINGERPRINT).ok();
use std::env::VarError::*;
let password = match std::env::var(ENV_VAR_PBS_PASSWORD) {
Ok(p) => Some(p),
Err(NotUnicode(_)) => bail!(format!("{} contains bad characters", ENV_VAR_PBS_PASSWORD)),
Err(NotPresent) => None,
};
let options = HttpClientOptions::new_interactive(password, fingerprint);
HttpClient::new(server, port, auth_id, options)
}
/// like get, but simply ignore errors and return Null instead
pub async fn try_get(repo: &BackupRepository, url: &str) -> Value {
let fingerprint = std::env::var(ENV_VAR_PBS_FINGERPRINT).ok();
let password = std::env::var(ENV_VAR_PBS_PASSWORD).ok();
// ticket cache, but no questions asked
let options = HttpClientOptions::new_interactive(password, fingerprint)
.interactive(false);
let client = match HttpClient::new(repo.host(), repo.port(), repo.auth_id(), options) {
Ok(v) => v,
_ => return Value::Null,
};
let mut resp = match client.get(url, None).await {
Ok(v) => v,
_ => return Value::Null,
};
if let Some(map) = resp.as_object_mut() {
if let Some(data) = map.remove("data") {
return data;
}
}
Value::Null
}
pub fn complete_backup_group(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_backup_group_do(param).await })
}
pub async fn complete_backup_group_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let path = format!("api2/json/admin/datastore/{}/groups", repo.store());
let data = try_get(&repo, &path).await;
if let Some(list) = data.as_array() {
for item in list {
if let (Some(backup_id), Some(backup_type)) =
(item["backup-id"].as_str(), item["backup-type"].as_str())
{
result.push(format!("{}/{}", backup_type, backup_id));
}
}
}
result
}
pub fn complete_group_or_snapshot(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_group_or_snapshot_do(arg, param).await })
}
pub async fn complete_group_or_snapshot_do(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
if arg.matches('/').count() < 2 {
let groups = complete_backup_group_do(param).await;
let mut result = vec![];
for group in groups {
result.push(group.to_string());
result.push(format!("{}/", group));
}
return result;
}
complete_backup_snapshot_do(param).await
}
pub fn complete_backup_snapshot(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_backup_snapshot_do(param).await })
}
pub async fn complete_backup_snapshot_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let path = format!("api2/json/admin/datastore/{}/snapshots", repo.store());
let data = try_get(&repo, &path).await;
if let Some(list) = data.as_array() {
for item in list {
if let (Some(backup_id), Some(backup_type), Some(backup_time)) =
(item["backup-id"].as_str(), item["backup-type"].as_str(), item["backup-time"].as_i64())
{
if let Ok(snapshot) = BackupDir::new(backup_type, backup_id, backup_time) {
result.push(snapshot.relative_path().to_str().unwrap().to_owned());
}
}
}
}
result
}
pub fn complete_server_file_name(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_server_file_name_do(param).await })
}
pub async fn complete_server_file_name_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let snapshot: BackupDir = match param.get("snapshot") {
Some(path) => {
match path.parse() {
Ok(v) => v,
_ => return result,
}
}
_ => return result,
};
let query = tools::json_object_to_query(json!({
"backup-type": snapshot.group().backup_type(),
"backup-id": snapshot.group().backup_id(),
"backup-time": snapshot.backup_time(),
})).unwrap();
let path = format!("api2/json/admin/datastore/{}/files?{}", repo.store(), query);
let data = try_get(&repo, &path).await;
if let Some(list) = data.as_array() {
for item in list {
if let Some(filename) = item["filename"].as_str() {
result.push(filename.to_owned());
}
}
}
result
}
pub fn complete_archive_name(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
complete_server_file_name(arg, param)
.iter()
.map(|v| tools::format::strip_server_file_extension(&v))
.collect()
}
pub fn complete_pxar_archive_name(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
complete_server_file_name(arg, param)
.iter()
.filter_map(|name| {
if name.ends_with(".pxar.didx") {
Some(tools::format::strip_server_file_extension(name))
} else {
None
}
})
.collect()
}
pub fn complete_img_archive_name(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
complete_server_file_name(arg, param)
.iter()
.filter_map(|name| {
if name.ends_with(".img.fidx") {
Some(tools::format::strip_server_file_extension(name))
} else {
None
}
})
.collect()
}
pub fn complete_chunk_size(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let mut size = 64;
loop {
result.push(size.to_string());
size *= 2;
if size > 4096 { break; }
}
result
}
pub fn complete_auth_id(_arg: &str, param: &HashMap<String, String>) -> Vec<String> {
proxmox_backup::tools::runtime::main(async { complete_auth_id_do(param).await })
}
pub async fn complete_auth_id_do(param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let repo = match extract_repository_from_map(param) {
Some(v) => v,
_ => return result,
};
let data = try_get(&repo, "api2/json/access/users?include_tokens=true").await;
if let Ok(parsed) = serde_json::from_value::<Vec<UserWithTokens>>(data) {
for user in parsed {
result.push(user.userid.to_string());
for token in user.tokens {
result.push(token.tokenid.to_string());
}
}
};
result
}
pub fn complete_repository(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let base = match BaseDirectories::with_prefix("proxmox-backup") {
Ok(v) => v,
_ => return result,
};
// usually $HOME/.cache/proxmox-backup/repo-list
let path = match base.place_cache_file("repo-list") {
Ok(v) => v,
_ => return result,
};
let data = file_get_json(&path, None).unwrap_or_else(|_| json!({}));
if let Some(map) = data.as_object() {
for (repo, _count) in map {
result.push(repo.to_owned());
}
}
result
}
pub fn complete_backup_source(arg: &str, param: &HashMap<String, String>) -> Vec<String> {
let mut result = vec![];
let data: Vec<&str> = arg.splitn(2, ':').collect();
if data.len() != 2 {
result.push(String::from("root.pxar:/"));
result.push(String::from("etc.pxar:/etc"));
return result;
}
let files = tools::complete_file_name(data[1], param);
for file in files {
result.push(format!("{}:{}", data[0], file));
}
result
}