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