src/bin/proxmox-backup-client.rs

   1 extern crate proxmox_backup;
   2
   3 use failure::*;
   4 //use std::os::unix::io::AsRawFd;
   5 use chrono::{DateTime, Local, Utc, TimeZone};
   6 use std::path::Path;
   7
   8 use proxmox_backup::tools;
   9 use proxmox_backup::flog;
  10 use proxmox_backup::cli::*;
  11 use proxmox_backup::api_schema::*;
  12 use proxmox_backup::api_schema::router::*;
  13 use proxmox_backup::client::*;
  14 use proxmox_backup::backup::*;
  15 //use proxmox_backup::backup::image_index::*;
  16 //use proxmox_backup::config::datastore;
  17 //use proxmox_backup::catar::encoder::*;
  18 //use proxmox_backup::backup::datastore::*;
  19
  20 use serde_json::{Value};
  21 use hyper::Body;
  22 use std::sync::Arc;
  23 use regex::Regex;
  24
  25 use lazy_static::lazy_static;
  26
  27 lazy_static! {
  28     static ref BACKUPSPEC_REGEX: Regex = Regex::new(r"^([a-zA-Z0-9_-]+):(.+)$").unwrap();
  29 }
  30
  31 fn backup_directory<P: AsRef<Path>>(
  32     client: &mut HttpClient,
  33     repo: &BackupRepository,
  34     dir_path: P,
  35     archive_name: &str,
  36     backup_time: DateTime<Utc>,
  37     chunk_size: Option<u64>,
  38 ) -> Result<(), Error> {
  39
  40     let mut query = url::form_urlencoded::Serializer::new(String::new());
  41
  42     query
  43         .append_pair("archive_name", archive_name)
  44         .append_pair("type", "host")
  45         .append_pair("id", &tools::nodename())
  46         .append_pair("time", &backup_time.timestamp().to_string());
  47
  48     if let Some(size) = chunk_size {
  49         query.append_pair("chunk-size", &size.to_string());
  50     }
  51
  52     let query = query.finish();
  53
  54     let path = format!("api2/json/admin/datastore/{}/catar?{}", repo.store, query);
  55
  56     let stream = CaTarBackupStream::open(dir_path.as_ref())?;
  57
  58     let body = Body::wrap_stream(stream);
  59
  60     client.upload("application/x-proxmox-backup-catar", body, &path)?;
  61
  62     Ok(())
  63 }
  64
  65 /****
  66 fn backup_image(datastore: &DataStore, file: &std::fs::File, size: usize, target: &str, chunk_size: usize) -> Result<(), Error> {
  67
  68     let mut target = PathBuf::from(target);
  69
  70     if let Some(ext) = target.extension() {
  71         if ext != "fidx" {
  72             bail!("got wrong file extension - expected '.fidx'");
  73         }
  74     } else {
  75         target.set_extension("fidx");
  76     }
  77
  78     let mut index = datastore.create_image_writer(&target, size, chunk_size)?;
  79
  80     tools::file_chunker(file, chunk_size, |pos, chunk| {
  81         index.add_chunk(pos, chunk)?;
  82         Ok(true)
  83     })?;
  84
  85     index.close()?; // commit changes
  86
  87     Ok(())
  88 }
  89 */
  90
  91 fn list_backups(
  92     param: Value,
  93     _info: &ApiMethod,
  94     _rpcenv: &mut RpcEnvironment,
  95 ) -> Result<Value, Error> {
  96
  97     let repo_url = tools::required_string_param(&param, "repository")?;
  98     let repo = BackupRepository::parse(repo_url)?;
  99
 100     let mut client = HttpClient::new(&repo.host, &repo.user);
 101
 102     let path = format!("api2/json/admin/datastore/{}/backups", repo.store);
 103
 104     let result = client.get(&path)?;
 105
 106     // fixme: implement and use output formatter instead ..
 107     let list = result["data"].as_array().unwrap();
 108
 109     for item in list {
 110
 111         let id = item["backup_id"].as_str().unwrap();
 112         let btype = item["backup_type"].as_str().unwrap();
 113         let epoch = item["backup_time"].as_i64().unwrap();
 114         let backup_time = Local.timestamp(epoch, 0);
 115
 116         let backup_dir = BackupDir {
 117             group: BackupGroup {
 118                 backup_type: btype.to_string(),
 119                 backup_id: id.to_string(),
 120             },
 121             backup_time
 122         };
 123
 124         let files = item["files"].as_array().unwrap().iter().map(|v| v.as_str().unwrap().to_owned()).collect();
 125
 126         let info = BackupInfo { backup_dir, files };
 127
 128         for filename in info.files {
 129             let path = info.backup_dir.relative_path().to_str().unwrap().to_owned();
 130             println!("{} | {}/{}", backup_time.format("%c"), path, filename);
 131         }
 132     }
 133
 134     //Ok(result)
 135     Ok(Value::Null)
 136 }
 137
 138 fn start_garbage_collection(
 139     param: Value,
 140     _info: &ApiMethod,
 141     _rpcenv: &mut RpcEnvironment,
 142 ) -> Result<Value, Error> {
 143
 144     let repo_url = tools::required_string_param(&param, "repository")?;
 145     let repo = BackupRepository::parse(repo_url)?;
 146
 147     let mut client = HttpClient::new(&repo.host, &repo.user);
 148
 149     let path = format!("api2/json/admin/datastore/{}/gc", repo.store);
 150
 151     let result = client.post(&path)?;
 152
 153     Ok(result)
 154 }
 155
 156 fn parse_backupspec(value: &str) -> Result<(&str, &str), Error> {
 157
 158     if let Some(caps) = BACKUPSPEC_REGEX.captures(value) {
 159         return Ok((caps.get(1).unwrap().as_str(), caps.get(2).unwrap().as_str()));
 160     }
 161     bail!("unable to parse directory specification '{}'", value);
 162 }
 163
 164 fn create_backup(
 165     param: Value,
 166     _info: &ApiMethod,
 167     _rpcenv: &mut RpcEnvironment,
 168 ) -> Result<Value, Error> {
 169
 170     let repo_url = tools::required_string_param(&param, "repository")?;
 171
 172     let backupspec_list = tools::required_array_param(&param, "backupspec")?;
 173
 174     let repo = BackupRepository::parse(repo_url)?;
 175
 176     let chunk_size_opt = param["chunk-size"].as_u64().map(|v| v*1024);
 177
 178     if let Some(size) = chunk_size_opt {
 179         verify_chunk_size(size)?;
 180     }
 181
 182     let mut upload_list = vec![];
 183
 184     for backupspec in backupspec_list {
 185         let (target, filename) = parse_backupspec(backupspec.as_str().unwrap())?;
 186
 187         let stat = match nix::sys::stat::stat(filename) {
 188             Ok(s) => s,
 189             Err(err) => bail!("unable to access '{}' - {}", filename, err),
 190         };
 191
 192         if (stat.st_mode & libc::S_IFDIR) != 0 {
 193
 194             let target = format!("{}.catar", target);
 195
 196             upload_list.push((filename.to_owned(), target));
 197
 198         } else if (stat.st_mode & (libc::S_IFREG|libc::S_IFBLK)) != 0 {
 199             if stat.st_size <= 0 { bail!("got strange file size '{}'", stat.st_size); }
 200             let _size = stat.st_size as usize;
 201
 202             panic!("implement me");
 203
 204             //backup_image(&datastore, &file, size, &target, chunk_size)?;
 205
 206             // let idx = datastore.open_image_reader(target)?;
 207             // idx.print_info();
 208
 209         } else {
 210             bail!("unsupported file type (expected a directory, file or block device)");
 211         }
 212     }
 213
 214     let backup_time = Utc::now();
 215
 216     let mut client = HttpClient::new(&repo.host, &repo.user);
 217
 218     client.login()?; // login before starting backup
 219
 220     let log_file_name = format!("backup-log-{}.log", backup_time.format("%Y-%m-%dT%H:%M:%S"));
 221
 222     let mut log = tools::FileLogger::new(&log_file_name, true)?;
 223
 224     flog!(log, "Starting backup");
 225     flog!(log, "Client name: {}", tools::nodename());
 226     flog!(log, "UTC Start Time: {}", Utc::now().format("%c"));
 227
 228     for (filename, target) in upload_list {
 229         flog!(log, "Upload '{}' to '{:?}' as {}", filename, repo, target);
 230         backup_directory(&mut client, &repo, &filename, &target, backup_time, chunk_size_opt)?;
 231     }
 232
 233     flog!(log, "Upload backup log");
 234     // fixme: impl upload log
 235
 236     flog!(log, "UTC End Time: {}", Utc::now().format("%c"));
 237
 238     //datastore.garbage_collection()?;
 239
 240     Ok(Value::Null)
 241
 242 }
 243
 244 pub fn complete_backup_source(arg: &str) -> Vec<String> {
 245
 246     let mut result = vec![];
 247
 248     let data: Vec<&str> = arg.splitn(2, ':').collect();
 249
 250     if data.len() != 2 { return result; }
 251
 252     let files = tools::complete_file_name(data[1]);
 253
 254     for file in files {
 255         result.push(format!("{}:{}", data[0], file));
 256     }
 257
 258     result
 259 }
 260
 261 fn prune(
 262     mut param: Value,
 263     _info: &ApiMethod,
 264     _rpcenv: &mut RpcEnvironment,
 265 ) -> Result<Value, Error> {
 266
 267     let repo_url = tools::required_string_param(&param, "repository")?;
 268     let repo = BackupRepository::parse(repo_url)?;
 269
 270     let mut client = HttpClient::new(&repo.host, &repo.user);
 271
 272     let path = format!("api2/json/admin/datastore/{}/prune", repo.store);
 273
 274     param.as_object_mut().unwrap().remove("repository");
 275
 276     let result = client.post_json(&path, param)?;
 277
 278     Ok(result)
 279 }
 280
 281 fn main() {
 282
 283     let repo_url_schema: Arc<Schema> = Arc::new(
 284         StringSchema::new("Repository URL.")
 285             .format(BACKUP_REPO_URL.clone())
 286             .max_length(256)
 287             .into()
 288     );
 289
 290     let backup_source_schema: Arc<Schema> = Arc::new(
 291         StringSchema::new("Backup source specification ([<label>:<path>]).")
 292             .format(Arc::new(ApiStringFormat::Pattern(&BACKUPSPEC_REGEX)))
 293             .into()
 294     );
 295
 296     let create_cmd_def = CliCommand::new(
 297         ApiMethod::new(
 298             create_backup,
 299             ObjectSchema::new("Create backup.")
 300                 .required("repository", repo_url_schema.clone())
 301                 .required(
 302                     "backupspec",
 303                     ArraySchema::new(
 304                         "List of backup source specifications ([<label>:<path>] ...)",
 305                         backup_source_schema,
 306                     ).min_length(1)
 307                 )
 308                 .optional(
 309                     "chunk-size",
 310                     IntegerSchema::new("Chunk size in KB. Must be a power of 2.")
 311                         .minimum(64)
 312                         .maximum(4096)
 313                         .default(4096)
 314                 )
 315         ))
 316         .arg_param(vec!["repository", "backupspec"])
 317         .completion_cb("backupspec", complete_backup_source);
 318
 319     let list_cmd_def = CliCommand::new(
 320         ApiMethod::new(
 321             list_backups,
 322             ObjectSchema::new("List backups.")
 323                 .required("repository", repo_url_schema.clone())
 324         ))
 325         .arg_param(vec!["repository"]);
 326
 327     let garbage_collect_cmd_def = CliCommand::new(
 328         ApiMethod::new(
 329             start_garbage_collection,
 330             ObjectSchema::new("Start garbage collection for a specific repository.")
 331                 .required("repository", repo_url_schema.clone())
 332         ))
 333         .arg_param(vec!["repository"]);
 334
 335     let prune_cmd_def = CliCommand::new(
 336         ApiMethod::new(
 337             prune,
 338             proxmox_backup::api2::admin::datastore::add_common_prune_prameters(
 339                 ObjectSchema::new("Prune backup repository.")
 340                     .required("repository", repo_url_schema.clone())
 341             )
 342         ))
 343         .arg_param(vec!["repository"]);
 344     let cmd_def = CliCommandMap::new()
 345         .insert("create".to_owned(), create_cmd_def.into())
 346         .insert("garbage-collect".to_owned(), garbage_collect_cmd_def.into())
 347         .insert("list".to_owned(), list_cmd_def.into())
 348         .insert("prune".to_owned(), prune_cmd_def.into());
 349
 350     run_cli_command(cmd_def.into());
 351 }