git.roojs.org Git - app.mailtrimmer/blob - src/strip.vala

   1 /**
   2
   3   needs to scan 2 things
   4   a) our mailfort email database
   5        point it at the top directory, containing YEAR/MONTH/DAY.... directories.
   6        scan each file (over a year old...)
   7        extract out the attachment, and replace with HTML
   8        DATABASE? - mysql or sqlite? -
   9            filesize / name / date / checksum / mimetype -- into mailfort should be OK.
  10   b) the imap user emails
  11            loop through user's directories
  12            check age of email .. over 1 years..
  13            ?? how to prevent 'repeat' scanning of emails?
  14               ??? hidden '.' files containing last scan date?
  15
  16            check if file exists in our DB.. - replace the link...
  17            otherwise generate a file. + add to DB...
  18
  19    c) retreival system
  20      -> URL -> get file
  21    d) redirect system.
  22      -> URL -> redirect to correct server
  23
  24
  25 More notes on our Mailfort DB sync:
  26 * some of these attachments are already in the database...
  27  - so we need to update the DB..
  28  - probably worth putting the code in a stored procedure..
  29
  30  -- key scenarios
  31    * first scan (and extract)
  32    * rescan (as I messed up the first time - fix the DB...)
  33    * email scan - attachments might not have related messages.
  34
  35
  36  - {id} attachment_init(
  37                 {exim_msg_id}
  38                 {chksum}
  39                 {filename),
  40         )
  41         // creates or returns id (can look for existing messages?
  42         // can do a merge?? - copy 'old' record data into 'new'....  "prefer checksummed"
  43
  44         attachment_update(
  45                 {id}
  46                 {exim_msg_id}
  47                 {mailfort_msg_sig}
  48                 {file_size}
  49                 {created} // message date..
  50                 {chksum}
  51                 {filename),
  52         {mime_type}
  53         )
  54         attachment_update_store(
  55                         {id}
  56                         {stored_filename}
  57         )
  58
  59
  60 */
  61
  62 // valac --pkg gmime --vapi
  63 /*
  64
  65 // http://www.fromdual.com/mysql-vala-program-example << check mysql if this does not work.
  66
  67  valac  -g --vapidir=. --thread  strip.vala   --vapidir=../vapi \
  68      --pkg glib-2.0 --pkg mysql --pkg gio-2.0 --pkg posix --pkg gmime-2.6 \
  69       --Xcc=-lmysqlclient  -v \
  70        -o /tmp/strip
  71 */
  72
  73 public class StripApplication : GLib.Application {
  74
  75         public static string? opt_path = null;
  76         public static string? opt_file = null;
  77         public static string? opt_target_path = null;
  78         public static string? opt_db_host = "127.0.0.1";
  79         public static string? opt_db_name = null;
  80         public static string? opt_db_user = null;
  81         public static string? opt_db_pass = null;
  82
  83         public static int    opt_limit = -1;
  84
  85         public static bool      opt_is_extracting = false;
  86         public static bool      opt_is_replacing = false;
  87         public static bool      opt_scan_imap  = false;
  88         public static bool      opt_scan_mailfort  = false;
  89         public static bool              opt_dump = false;
  90         public static bool              opt_debug = false;
  91
  92         public static bool opt_debug_sql = false;
  93         public static string? opt_replace_link = null;
  94
  95
  96         public const GLib.OptionEntry[] options = {
  97
  98                 { "debug", 0, 0, OptionArg.NONE, ref opt_debug, "show debug messages for components", null },
  99                 { "debug-sql", 0, 0, OptionArg.NONE, ref opt_debug_sql, "debug the SQL statements", null },
 100
 101                 { "path", 0, 0, OptionArg.STRING, ref opt_path, "Directory where email to be parsed is", null },
 102                 { "file", 0, 0, OptionArg.STRING, ref opt_file, "A specific file to be parsed", null },
 103
 104                 { "target-path", 0, 0, OptionArg.STRING, ref opt_target_path, "Directory where attachments are to be put", null },
 105
 106                 { "link", 0, 0, OptionArg.STRING, ref opt_replace_link, "url for the replement link: eg. http://www.mysite.com/xxxx/%s", null },
 107
 108                 { "host", 0, 0, OptionArg.STRING, ref opt_db_host, "Mysql host (default localhost)", null },
 109                 { "name", 0, 0, OptionArg.STRING, ref opt_db_name, "Mysql database name REQUIRED", null },
 110                 { "user", 0, 0, OptionArg.STRING, ref opt_db_user, "Mysql database user REQUIRED", null },
 111                 { "pass", 0, 0, OptionArg.STRING, ref opt_db_pass, "Mysql database password (default empty)", null },
 112
 113                 { "extract", 0, 0, OptionArg.NONE, ref opt_is_extracting, "Should attachments be extracted (default NO)", null },
 114                 { "replace", 0, 0, OptionArg.NONE, ref opt_is_replacing, "Should attachments be replaced (default NO)", null },
 115                 { "dump", 0, 0, OptionArg.NONE, ref opt_dump, "Print the replaced mail contents to stdout", null },
 116
 117                 { "limit", 0, 0, OptionArg.INT, ref opt_limit, "stop after X number of messages with attachments have been processed", null },
 118
 119                 { "scan-imap", 0, 0, OptionArg.NONE, ref opt_scan_imap, "scan an imap tree", null },
 120                 { "scan-mailfort", 0, 0, OptionArg.NONE, ref opt_scan_mailfort, "scan a mailfort tree", null },
 121                 { null }
 122         };
 123     public StripApplication( string[] args )
 124     {
 125                  Object(
 126             application_id: "org.roojs.mailstripper",
 127             flags: ApplicationFlags.FLAGS_NONE
 128          );
 129
 130
 131          var opt_context =  new GLib.OptionContext ("Mail Stripper");
 132
 133          try {
 134
 135             opt_context.set_help_enabled (true);
 136             opt_context.add_main_entries (options, null);
 137             opt_context.parse ( ref  args);
 138             //opt_detach = !optx_no_detach;
 139
 140
 141
 142              // options that have to be set.. bee or hive... (or stop all)
 143             if ((!opt_scan_mailfort && !opt_scan_imap) || (opt_scan_mailfort && opt_scan_imap))  {
 144                stdout.printf ("You must specify the type of directory tree to scan - either imap or mailfort\n%s",
 145                    opt_context.get_help(true, null));
 146                GLib.Process.exit(Posix.EXIT_FAILURE);
 147             }
 148
 149                          if ((opt_db_name == null || opt_db_name.length < 1 || opt_db_user == null || opt_db_user.length < 1))  {
 150                stdout.printf ("You must specify the database name / user \n%s",
 151                    opt_context.get_help(true, null));
 152                GLib.Process.exit(Posix.EXIT_FAILURE);
 153             }
 154                          if ((opt_path == null || opt_path.length < 1)   )  {
 155                stdout.printf ("You must specify the scan start path\n%s",
 156                    opt_context.get_help(true, null));
 157                GLib.Process.exit(Posix.EXIT_FAILURE);
 158             }
 159                         if (opt_replace_link == null || (opt_replace_link.length < 1))  {
 160                stdout.printf ("You must specify the link to use in the replacement \n%s",
 161                    opt_context.get_help(true, null));
 162                GLib.Process.exit(Posix.EXIT_FAILURE);
 163             }
 164             if ((opt_is_replacing || opt_is_extracting ) && (opt_target_path == null || opt_target_path.length < 1)) {
 165                       stdout.printf ("You must specify a target path to put attachments\n%s",
 166                    opt_context.get_help(true, null));
 167                GLib.Process.exit(Posix.EXIT_FAILURE);
 168             }
 169
 170
 171          } catch (GLib.OptionError e) {
 172             stdout.printf ("error: %s\n", e.message);
 173             stdout.printf ("Run '%s --help' to see a full list of available command line options.\n%s",
 174                       args[0], opt_context.get_help(true, null));
 175             GLib.Process.exit(Posix.EXIT_FAILURE);
 176          }
 177         }
 178
 179     public static int main(string[] args)
 180     {
 181
 182                 var application = new StripApplication(  args);
 183
 184                 GLib.Log.set_always_fatal(LogLevelFlags.LEVEL_ERROR | LogLevelFlags.LEVEL_CRITICAL);
 185
 186            if (opt_debug || opt_debug_sql) {
 187                         GLib.Log.set_handler(null,
 188                         GLib.LogLevelFlags.LEVEL_DEBUG | GLib.LogLevelFlags.LEVEL_WARNING | GLib.LogLevelFlags.LEVEL_INFO,
 189                         (dom, lvl, msg) => {
 190                                         print("%s\n", msg);
 191                                 }
 192                         );
 193                 }
 194
 195         GMime.init(0);
 196                 if (StripApplication.opt_is_replacing) {
 197                         StripApplication.opt_is_extracting = true;
 198                 }
 199
 200                 GLib.debug("scanning folder: %s", opt_path );
 201
 202                 var strip = new Strip( opt_path );
 203
 204
 205                 strip.mysql  = new Mysql.Database();
 206                 if (!strip.mysql.real_connect(
 207                                 opt_db_host,
 208                                 opt_db_user ,
 209                                 opt_db_pass == null ? "" : opt_db_pass, //passwd
 210                                 opt_db_name, //DB
 211                                 3306, // not changable...?
 212                                 null
 213                         )
 214                 ) {
 215                         stdout.printf("ERROR %u: Connection failed: %s\n",
 216                                 strip.mysql.errno(), strip.mysql.error()
 217                         );
 218
 219                         return 1;
 220                 }
 221         if (opt_file != null) {
 222                 strip.base_dir = opt_path;
 223                 strip.scan_file( GLib.Path.get_dirname(opt_file),  GLib.Path.get_basename(opt_file));
 224                 return 0;
 225         }
 226
 227                 strip.scan_dir(opt_path);
 228
 229
 230
 231         return 0;
 232     }
 233 }
 234
 235 public class Strip : GLib.Object {
 236
 237
 238
 239         public string base_dir = "";
 240
 241         public Mysql.Database mysql;
 242
 243         int processed = 0;
 244
 245     uint64 used_space_before = 0;
 246     uint64 used_space_after = 0;
 247
 248
 249     public Strip(string base_dir)
 250     {
 251         this.base_dir = base_dir;
 252     }
 253
 254     public void handle_part(GMime.Object parent, GMime.Object mime_obj)
 255     {
 256                 if (mime_obj is GMime.Part) {
 257                    var  p = (GMime.Part)mime_obj;
 258                         var ct = p.get_content_type();
 259                         var cd = p.get_content_disposition();
 260
 261                         var sid = p.get_header("X-strip-id");
 262                     if (sid != null && sid.length > 0) {
 263                         this.update_attachment_db(p);
 264                             GLib.debug("Skip attachment replace - it's already been done");
 265                         return;
 266                         }
 267
 268                         if (cd == null || cd.get_disposition().down() != "attachment") {
 269                                 return;
 270                         }
 271                         if (ct.get_media_type() == "text") {
 272                                 return;
 273                         }
 274                         if (ct.to_string() == "application/pgp-encrypted") {
 275                                 return;
 276                         }
 277                         if (ct.to_string() == "application/pgp-keys") {
 278                                 return;
 279                         }
 280                         if (p.get_filename() == null) {
 281                                 return;
 282                         }
 283                          // print("got part %s\n", ct.to_string());
 284                          if (parent is GMime.Multipart) {
 285
 286                                 this.replace_attachment(((GMime.Multipart)parent), p);
 287                                 // remove it !?
 288
 289                           }
 290
 291
 292                         return;
 293                 }
 294                 if (mime_obj is GMime.Multipart) {
 295
 296
 297                         var  mp = (GMime.Multipart)mime_obj;
 298                         //var ct = mp.get_content_type();
 299
 300                         //print("got multi-part %s\n", ct.to_string());
 301                         for (var i = 0; i< mp.get_count(); i++) {
 302                           var mo = mp.get_part(i);
 303                           this.handle_part(mime_obj,mo);
 304                         }
 305                    // ((GMime.Multipart)mime_obj).foreach((sub_obj) => {
 306                    //     Strip.handle_part(sub_obj);
 307                 //
 308                    // });
 309
 310
 311                         return;
 312                 }
 313
 314                 if (mime_obj is GMime.MessagePart) {
 315                         var msg = ((GMime.MessagePart)mime_obj).get_message();
 316                         msg.foreach((subobj) => {
 317                          this.handle_part(msg,subobj);
 318                     });
 319
 320                         //print("got message-part\n");
 321                         return;
 322                 }
 323
 324                 if (mime_obj is GMime.Message) {
 325                         var mp = ((GMime.Message) mime_obj).get_mime_part();
 326
 327                         if (!(mp is GMime.Multipart)) {
 328                                 //GLib.debug("get mimepart does not return a Multipart?");
 329                                 return;
 330                         }
 331
 332                         var mpc = ((GMime.Multipart)mp).get_count();
 333
 334                         //GLib.debug("Message has %d parts", mpc);
 335                         for (var i =0 ; i < mpc; i++) {
 336                                 //GLib.debug("Getting part %d", i);
 337                                 var submime_obj = ((GMime.Multipart)mp).get_part(i);
 338                         this.handle_part(mp,submime_obj);
 339                     }
 340                         print("got message??\n");
 341                         return;
 342                 }
 343
 344                 print("got something else\n");
 345
 346
 347     }
 348     public void update_attachment_db(GMime.Part attachment)
 349     {
 350         // only called when we have an sid...
 351         var sid = attachment.get_header("X-strip-id");
 352         if (sid == null || sid.length < 1) {
 353                 GLib.debug("Strange - update attachment db called ?");
 354                 return;
 355         }
 356
 357         // initialize it with known data..
 358         // that should wipe out dupes.
 359         var filesize = this.query("SELECT filesize FROM Attachment WHERE id = %d".printf(
 360                         int.parse(sid)));
 361                 if (int.parse(filesize) < 1) {
 362                 GLib.debug("Could not get filesize from id :%s = %s", sid,filesize);
 363                 Posix.exit(0);
 364                 return;
 365         }
 366
 367         var chksum = this.query("SELECT  checksum FROM Attachment WHERE id = %d".printf(
 368                         int.parse(sid)
 369                 ));
 370         var mime_filename = this.query("SELECT  mime_filename FROM Attachment WHERE id = %d".printf(
 371                         int.parse(sid)));
 372
 373         this.query("""
 374              SELECT
 375                  attachment_init(
 376                      '%s', '%s', '%s', %d
 377                  ) as id
 378
 379           """.printf(
 380                           this.mysql_escape(this.active_message_exim_id),
 381                           this.mysql_escape(chksum),
 382                           this.mysql_escape(mime_filename),
 383                           int.parse(filesize)
 384                 ));
 385         this.query("""
 386                  SELECT attachment_update(
 387                       %d, -- in_id INT(11),
 388                       '%s', -- in_mime_type varchar(255),
 389                       '%s', -- in_created DATETIME,
 390                       '%s' -- in_mailfort_sig varchar(64)
 391                  )
 392               """.printf(
 393                         int.parse(sid),
 394                         "", // this will be ignored..
 395                                 this.created_date,
 396                                 this.mysql_escape(this.active_message_x_mailfort_sig)
 397
 398               )
 399                 );
 400                 this.mysql.store_result();
 401
 402
 403
 404     }
 405
 406
 407     public void replace_attachment(GMime.Multipart parent, GMime.Part attachment)
 408     {
 409         var sid = attachment.get_header("X-strip-id");
 410         if (sid != null && sid.length > 0) {
 411                 GLib.debug("Skip attachment replace - it's already been done");
 412                 return;
 413         }
 414
 415         var c = attachment.get_content_object();
 416
 417         var filename = attachment.get_filename().replace("/", "-");
 418         var fn = GLib.Environment.get_tmp_dir() +
 419                         "/"+ this.active_name + "."+   filename;
 420
 421             var outfile = new GMime.StreamFile.for_path(fn, "w");
 422             outfile.set_owner(true);
 423             var file_size = (int) c.write_to_stream(outfile);
 424             var chksum = this.md5_file(fn);
 425             outfile.flush();
 426             outfile = null;
 427
 428         if (file_size == 0) {
 429
 430                 GLib.debug("ERROR - file size of write to stream returned 0?");
 431                 Posix.unlink(fn);
 432                 return;
 433         }
 434
 435
 436
 437
 438         var mime_type= attachment.get_content_type().to_string();
 439         // at this point we have to do our database magic...
 440         //filesize / name / date / checksum / mimetype -- into mailfort should be OK.
 441
 442         var file_id = this.query("""
 443                 SELECT
 444
 445                 attachment_init(
 446                                 '%s', -- in_msgid VARCHAR(32),
 447                                 '%s', -- in_checksum VARCHAR(64),
 448                                 '%s', -- in_mime_filename varchar(255)
 449                                 %d -- filesize
 450                         ) as id
 451
 452           """.printf(
 453                         this.mysql_escape(this.active_message_exim_id),
 454                         chksum,
 455                         this.mysql_escape( attachment.get_filename() ), // what is thsi is invalid?
 456                          file_size)
 457                 );
 458
 459
 460                 if (file_id.length < 1) {
 461                         GLib.debug("ERROR - CALL to attachment_init failed");
 462                 Posix.unlink(fn);
 463                 return;
 464
 465                 }
 466
 467                 if (int.parse(file_id) < 1) {
 468                         GLib.debug("ERROR - CALL to attachment_init failed - returned 0?");
 469                 Posix.unlink(fn);
 470                 return;
 471
 472                 }
 473
 474
 475                 GLib.debug("fn = %s, m5=%s, id= %s", filename, mime_type, this.active_message_id);
 476                 this.query("""
 477
 478                         SELECT attachment_update(
 479                                 %d, -- in_id INT(11),
 480                                 '%s', -- in_mime_type varchar(255),
 481                                 '%s', -- in_created DATETIME,
 482                                 '%s' -- in_mailfort_sig varchar(64)
 483
 484                                 ) as result
 485       """.printf(
 486                 int.parse(file_id),
 487                         this.mysql_escape(mime_type),
 488                         this.created_date,
 489                         this.mysql_escape(this.active_message_x_mailfort_sig)
 490                 ));
 491                  this.mysql.store_result();
 492
 493
 494                 this.used_space_after += file_size;
 495
 496                 var target_fn = "";
 497
 498             if (StripApplication.opt_is_extracting) {
 499                         target_fn = StripApplication.opt_target_path + "/" + this.created_dir +"/"+ file_id  + "-" + filename;
 500                 }
 501
 502             var stored =  "/" + this.created_dir +"/"+ file_id  + "-" + filename;
 503                  this.query("""
 504
 505                         SELECT attachment_update_store(
 506                                 %d, -- in_id INT(11),
 507                                 '%s'  -- in_store_filename varchar(255),
 508
 509
 510                                 ) as result
 511       """.printf(
 512                 int.parse(file_id),
 513                          this.mysql_escape( stored)
 514                 ));
 515
 516         var rep = new GMime.Part.with_type("text","html");
 517         // we have to set up a redirect server - to redirect hpasite... to their internal service..
 518         rep.set_filename(filename);
 519         string txt = "<html><body>"+
 520             "<a href=\"" + StripApplication.opt_replace_link + "/" +
 521                         file_id + "/" + this.created_dir + "/"+chksum+"/"+ GLib.Uri.escape_string( filename) +"\">" +
 522             GLib.Uri.escape_string( filename) + // fixme needs html escaping...
 523             "</a>" +
 524             "</body></html>";
 525
 526         rep.get_content_type().set_parameter("charset", "utf-8");
 527                 rep.set_header("X-strip-id", file_id);
 528                 rep.set_header("X-strip-content-name",  filename);
 529                 rep.set_header("X-strip-path", this.created_dir + "/" + file_id + "-" + filename);
 530                 rep.set_header("X-strip-content-type", mime_type);
 531         var stream =  new GMime.StreamMem.with_buffer(txt.data);
 532         var con = new GMime.DataWrapper.with_stream(stream,GMime.ContentEncoding.DEFAULT);
 533
 534         rep.set_content_object(con);
 535         GLib.debug("Replacing Attachment with HTML");
 536         parent.replace(parent.index_of(attachment), rep);
 537                 this.has_replaced = true;
 538
 539                 if (StripApplication.opt_is_extracting && target_fn.length > 0) {
 540                         var dir = GLib.Path.get_dirname(target_fn);
 541                         if (!FileUtils.test (dir, FileTest.IS_DIR)) {
 542                                 GLib.DirUtils.create_with_parents(dir, 0755);
 543                         }
 544                         GLib.debug("Creating file %s", target_fn);
 545                         if (!FileUtils.test (target_fn, FileTest.EXISTS)) {
 546                                 Posix.link(fn, target_fn);
 547                         }
 548                 } else {
 549                         GLib.debug("Skipping extraction %s", target_fn);
 550                 }
 551                 Posix.unlink(fn);
 552
 553
 554
 555     }
 556     public string query(string str)
 557     {
 558             return this.real_query(true, str);
 559     }
 560     public string execute(string str)
 561     {
 562             return this.real_query(false, str);
 563     }
 564     public string real_query(bool need_return, string str)
 565     {
 566                 GLib.debug("Before Query : %u  : %s\n", this.mysql.errno(), this.mysql.error());
 567
 568
 569         if (StripApplication.opt_debug_sql) {
 570                 GLib.debug("SQL: %s\n", str);
 571                 }
 572
 573
 574
 575         var rc=  this.mysql.query(str);
 576         if ( rc != 0 ) {
 577
 578                     GLib.debug("ERROR %u: Query failed: %s\n", this.mysql.errno(), this.mysql.error());
 579                                 Posix.exit(1);
 580                 }
 581
 582
 583         var rs = mysql.use_result();
 584
 585         var got_row = false;
 586                 string[] row;
 587                 string ret = "";
 588                 while( (row = rs.fetch_row()) != null) {
 589                         got_row = true;
 590                         ret = row[0];
 591
 592                 }
 593                 if (!need_return) {
 594                         return "";
 595                 }
 596                 if (!got_row) {
 597                          GLib.debug("ERROR : no rows returned");
 598                         Posix.exit(1);
 599                         return "";
 600                 }
 601                 GLib.debug("got %s", ret);
 602                 return ret;
 603
 604
 605         }
 606
 607     public string mysql_escape(string str)
 608     {
 609             unichar[] value_escaped = new unichar[str.length * 2 + 1];
 610                 this.mysql.real_escape_string ((string) value_escaped, str, str.length);
 611                 return (string) value_escaped;
 612     }
 613
 614     public string  md5_file(string fn) {
 615               Checksum checksum = new Checksum (ChecksumType.MD5);
 616
 617               FileStream stream = FileStream.open (fn, "rb");
 618               uint8 fbuf[100];
 619               size_t size;
 620
 621               while ((size = stream.read (fbuf)) > 0) {
 622                       checksum.update (fbuf, size);
 623               }
 624
 625               unowned string digest = checksum.get_string ();
 626               return digest;
 627     }
 628
 629         string active_path = "";
 630     string active_name = "";
 631     string active_message_id = "";
 632     string active_message_x_mailfort_sig = "";
 633     string active_message_exim_id = "";
 634     bool has_replaced = false;
 635     string created_date = ""; // should be YYYY-mm-dd
 636     string created_dir = ""; // should be YYY/mm/dd
 637
 638     public void scan_file(string path, string name)
 639     {
 640                 GLib.debug("Scan: %s/%s", path,name);
 641
 642                 this.has_replaced = false;
 643         this.active_path = path;
 644         this.active_name = name;
 645         this.active_message_id = "";
 646
 647         this.created_dir = this.active_path.substring(this.base_dir.length + 1 );
 648                 this.created_date = this.created_dir.replace("/", "-");
 649
 650                 var fileinfo = File.new_for_path(path +"/" + name)
 651                                         .query_info(GLib.FileAttribute.STANDARD_SIZE+","+GLib.FileAttribute.TIME_MODIFIED
 652                                                 ,GLib.FileQueryInfoFlags.NONE,null);
 653         var file_size = (int) fileinfo.get_size();
 654                 var mod_time = fileinfo.get_modification_time();
 655
 656         this.used_space_before += file_size;
 657
 658         var stream = new GMime.StreamFs.for_path (path +"/" + name,Posix.O_RDONLY, 0);
 659         //stream.set_owner(true);
 660         var parser = new GMime.Parser.with_stream(stream);
 661         var message = parser.construct_message();
 662
 663                 if (message == null) {
 664                         GLib.debug("Could not parse file? %s/%s", path,name);
 665                 this.used_space_after += file_size;
 666                 return;
 667                 }
 668
 669
 670                 // check : - is message over a year old?
 671                 // get various msg info..
 672                 this.active_message_id = message.get_message_id();
 673                 this.active_message_x_mailfort_sig = message.get_header("x-mailfort-sig");
 674                 var recvd = message.get_header("received");
 675                 this.active_message_exim_id = "";
 676                 if (recvd != null && recvd.length > 1) {
 677                         // GLib.debug("RECV: %s", recvd);
 678                         var lines = recvd.split("\t");
 679                         for (var i = 0; i < lines.length;i++) {
 680                                 var bits = lines[i].strip().split(" ");
 681                                 if (bits[0] == "id") {
 682                                         this.active_message_exim_id = bits[1].replace(";","");
 683                                         var dbits = lines[i].strip().split(";");
 684                                         int tz;
 685                                         var timez = GMime.utils_header_decode_date(dbits[1], null);
 686                                         if (timez != 0) {
 687                                                 var dts = DateTime.from_unix_utc(timez);
 688                                                 this.created_date = dts.format("%Y-%m-%d %H:%M:%s");
 689                                         }
 690                                 }
 691
 692                         }
 693                 }
 694                 /*
 695                 GLib.debug("Message DATA:\n mid: %s\nmailfort: %s \nexim_id: %s",
 696                         this.active_message_id,
 697                         this.active_message_x_mailfort_sig,
 698                         this.active_message_exim_id
 699                 );
 700                  */
 701
 702                 // DATE?
 703
 704                 var mp = message.get_mime_part();
 705
 706                 if (!(mp is GMime.Multipart)) {
 707                         //GLib.debug("get mimepart does not return a Multipart?");
 708                 this.used_space_after += file_size;
 709                         return;
 710                 }
 711
 712                 var mpc = ((GMime.Multipart)mp).get_count();
 713
 714                 //GLib.debug("Message has %d parts", mpc);
 715                 for (var i =0 ; i < mpc; i++) {
 716                         //GLib.debug("Getting part %d", i);
 717                         var mime_obj = ((GMime.Multipart)mp).get_part(i);
 718             this.handle_part(mp,mime_obj);
 719         }
 720
 721         parser= null;
 722
 723       //  stream.set_owner(false);
 724             //stream.close();
 725         stream = null;//.close();
 726
 727
 728                 if (!this.has_replaced) {
 729                         this.used_space_after += file_size;
 730                         GLib.debug("skpping write file - no replacement occured");
 731                         return;
 732                 }
 733                 string tmpfile = "";
 734                 GMime.Stream outstream = new GMime.StreamNull();
 735                 if (StripApplication.opt_is_replacing) {
 736
 737                         tmpfile = GLib.Environment.get_tmp_dir() +"/" + name;
 738                 outstream = new GMime.StreamFile.for_path (tmpfile,"w");
 739                 ((GMime.StreamFile)outstream).set_owner(true);
 740         }
 741                 if (StripApplication.opt_dump) {
 742                         outstream = new GMime.StreamMem();
 743         }
 744
 745         file_size = (int) message.write_to_stream(outstream);
 746         if (StripApplication.opt_is_replacing) {
 747                 ((GMime.StreamFile)outstream).set_owner(false);
 748         }
 749                 if (StripApplication.opt_dump) {
 750                         var ua = ((GMime.StreamMem)outstream).get_byte_array().data;
 751                         print("%s\n", (string) ua);
 752                 }
 753         message = null;
 754         outstream.flush();
 755         outstream.close();
 756         GLib.debug("finished writing output %d", file_size);
 757
 758         //
 759
 760
 761         this.used_space_after += file_size;
 762
 763
 764         if (StripApplication.opt_is_replacing) {
 765                 Posix.unlink(path +"/" + name);
 766                 GLib.debug("copy tmp file %s to %s" , tmpfile, path +"/" + name);
 767                 Posix.link(tmpfile, path +"/" + name);
 768                 Posix.unlink(tmpfile);
 769                 var nf = File.new_for_path(path +"/" + name);
 770                 var newfileinfo = nf.query_info(GLib.FileAttribute.TIME_MODIFIED,GLib.FileQueryInfoFlags.NONE,null);
 771                 newfileinfo.set_modification_time(mod_time);
 772                 nf.set_attributes_from_info(newfileinfo,FileQueryInfoFlags.NONE);
 773                 }
 774         this.processed++;
 775
 776         if (StripApplication.opt_limit > -1 && this.processed >= StripApplication.opt_limit) {
 777                 GLib.debug("Reached replacement limit");
 778                 Posix.exit(1);
 779         }
 780
 781
 782
 783
 784     }
 785
 786
 787     public void scan_dir(string path)
 788     {
 789         var f = File.new_for_path(path);
 790                 FileEnumerator file_enum;
 791         var cancellable = new Cancellable ();
 792         try {
 793             file_enum = f.enumerate_children(
 794                 FileAttribute.STANDARD_DISPLAY_NAME + "," +   FileAttribute.STANDARD_TYPE,
 795                         FileQueryInfoFlags.NOFOLLOW_SYMLINKS,  // FileQueryInfoFlags.NONE,
 796                         cancellable
 797                 );
 798         } catch (Error e) {
 799                 GLib.debug("Got error scanning dir? %s", e.message);
 800             // FIXME - show error..
 801             return;
 802         }
 803         FileInfo next_file;
 804
 805         while (cancellable.is_cancelled () == false ) {
 806             try {
 807                 next_file = file_enum.next_file (cancellable);
 808             } catch(Error e) {
 809                 GLib.debug("error getting next file? %s", e.message);
 810                 break;
 811             }
 812
 813             if (next_file == null) {
 814                 break;
 815             }
 816
 817
 818             if (next_file.get_file_type() != FileType.DIRECTORY) {
 819
 820                 if (next_file.get_display_name()[0] == ',') {
 821                         continue;
 822                 }
 823
 824                 this.scan_file(path , next_file.get_display_name());
 825                                 if(this.has_replaced) {
 826                          this.report_state("After scanning %s/%s".printf(path , next_file.get_display_name()));
 827                         }
 828                 continue;
 829             }
 830
 831
 832             //stdout.printf("Monitor.monitor: got file %s : type :%u\n",
 833             //        next_file.get_display_name(), next_file.get_file_type());
 834
 835
 836             if (next_file.get_is_symlink()) {
 837                 next_file = null;
 838                 continue;
 839             }
 840
 841             var ds = next_file.get_display_name();
 842             if (ds[0] == '.') {
 843                 next_file = null;
 844                 continue;
 845             }
 846             if (ds == "attachments") {
 847                         continue;
 848                 }
 849
 850
 851             var sp = path+"/"+next_file.get_display_name();
 852             // skip modules.
 853             //print("got a file : " + sp);
 854
 855             next_file = null;
 856
 857
 858             this.scan_dir(sp);
 859
 860         }
 861
 862
 863     }
 864     void report_state(string msg)
 865     {
 866         // Saved: 2G  Original 10G : 20%
 867         GLib.debug("Saved : %s (%.1f%%) | Original %s | %s",
 868                         GLib.format_size(this.used_space_before - this.used_space_after),
 869                         100f * ((1f * (this.used_space_before - this.used_space_after)) / (this.used_space_before * 1f)),
 870                         GLib.format_size(this.used_space_before),
 871                         msg
 872                 );
 873
 874         }
 875
 876
 877
 878 }