Line data    Source code

       1             : #include "../burp.h"
       2             : #include "../asfd.h"
       3             : #include "../async.h"
       4             : #include "../cmd.h"
       5             : #include "../fsops.h"
       6             : #include "../iobuf.h"
       7             : #include "../handy.h"
       8             : #include "../log.h"
       9             : #include "../prepend.h"
      10             : #include "../run_script.h"
      11             : #include "cvss.h"
      12             : #include "autoupgrade.h"
      13             : 
      14           0 : static int receive_file(struct asfd *asfd, const char *autoupgrade_dir,
      15             :         const char *file, struct cntr *cntr)
      16             : {
      17           0 :         int ret=0;
      18           0 :         char *incoming=NULL;
      19           0 :         if(!(incoming=prepend_s(autoupgrade_dir, file))) return -1;
      20           0 :         ret=receive_a_file(asfd, incoming, cntr);
      21           0 :         free_w(&incoming);
      22           0 :         return ret;
      23             : }
      24             : 
      25           0 : static enum asl_ret autoupgrade_func(struct asfd *asfd,
      26             :         __attribute__ ((unused)) struct conf **confs,
      27             :         __attribute__ ((unused)) void *param)
      28             : {
      29           0 :         if(!strcmp(asfd->rbuf->buf, "do not autoupgrade"))
      30             :                 return ASL_END_OK;
      31           0 :         if(strcmp(asfd->rbuf->buf, "autoupgrade ok"))
      32             :         {
      33           0 :                 iobuf_log_unexpected(asfd->rbuf, __func__);
      34           0 :                 return ASL_END_ERROR;
      35             :         }
      36             :         return ASL_END_OK_RETURN_1;
      37             : }
      38             : 
      39           1 : int autoupgrade_client(struct async *as, struct conf **confs)
      40             : {
      41           1 :         int a=0;
      42           1 :         int ret=-1;
      43           1 :         char *cp=NULL;
      44           1 :         char *copy=NULL;
      45           1 :         char *script_path=NULL;
      46           1 :         char script_name[32]="";
      47           1 :         char package_name[32]="";
      48           1 :         char write_str[256]="";
      49             :         const char *args[2];
      50           1 :         struct iobuf *rbuf=NULL;
      51             :         struct asfd *asfd;
      52           1 :         char *autoupgrade_dir=get_string(confs[OPT_AUTOUPGRADE_DIR]);
      53           1 :         const char *autoupgrade_os=get_string(confs[OPT_AUTOUPGRADE_OS]);
      54           1 :         struct cntr *cntr=get_cntr(confs);
      55           1 :         asfd=as->asfd;
      56             : 
      57           1 :         if(!autoupgrade_dir)
      58             :         {
      59           0 :                 logp("autoupgrade_dir not set!\n");
      60           0 :                 goto end;
      61             :         }
      62           1 :         if(!autoupgrade_os)
      63             :         {
      64           0 :                 logp("autoupgrade_os not set!\n");
      65           0 :                 goto end;
      66             :         }
      67           1 :         if(!(copy=strdup_w(autoupgrade_dir, __func__)))
      68             :                 goto end;
      69             : 
      70           1 :         strip_trailing_slashes(&copy);
      71           1 :         if((cp=strchr(copy, '/'))) *cp='\0';
      72           1 :         if(mkpath(&autoupgrade_dir, copy))
      73             :                 goto end;
      74             : 
      75             :         // Let the server know we are ready.
      76           1 :         snprintf(write_str, sizeof(write_str),
      77             :                 "autoupgrade:%s", autoupgrade_os);
      78           1 :         if(asfd->write_str(asfd, CMD_GEN, write_str))
      79             :                 goto end;
      80             : 
      81           0 :         if(!(a=asfd->simple_loop(asfd,
      82             :                 confs, NULL, __func__, autoupgrade_func)))
      83             :         {
      84             :                 ret=0; // No autoupgrade.
      85             :                 goto end;
      86             :         }
      87           0 :         else if(a<0) // Error.
      88             :                 goto end;
      89             : 
      90             : #ifdef HAVE_WIN32
      91             :         win32_enable_backup_privileges();
      92             :         snprintf(script_name, sizeof(script_name), "script.bat");
      93             :         snprintf(package_name, sizeof(package_name), "package.exe");
      94             : #else
      95           0 :         snprintf(script_name, sizeof(script_name), "script");
      96           0 :         snprintf(package_name, sizeof(package_name), "package");
      97             : #endif
      98             : 
      99           0 :         if(receive_file(asfd, autoupgrade_dir, script_name, cntr))
     100             :         {
     101           0 :                 logp("Problem receiving %s/%s\n",
     102             :                         autoupgrade_dir, script_name);
     103           0 :                 goto end;
     104             :         }
     105           0 :         if(receive_file(asfd, autoupgrade_dir, package_name, cntr))
     106             :         {
     107           0 :                 logp("Problem receiving %s/%s\n",
     108             :                         autoupgrade_dir, package_name);
     109           0 :                 goto end;
     110             :         }
     111             : 
     112           0 :         if(!(script_path=prepend_s(autoupgrade_dir, script_name)))
     113             :                 goto end;
     114             : 
     115           0 :         chmod(script_path, 0755);
     116             : 
     117             :         /* Run the script here. */
     118           0 :         a=0;
     119           0 :         args[a++]=script_path;
     120           0 :         args[a++]=NULL;
     121           0 :         run_script(asfd, args, NULL, confs,
     122             :                 0 /* do not wait */, 1 /* use logp */, 1 /* log_remote */);
     123             :         /* To get round Windows problems to do with installing over files
     124             :            that the current process is running from, I am forking the child,
     125             :            then immediately exiting the parent process. */
     126             : 
     127           0 :         printf("\n");
     128           0 :         logp("The server tried to upgrade your client.\n");
     129           0 :         logp("You will need to try your command again.\n");
     130           0 :         asfd_flush_asio(asfd);
     131           0 :         asfd_free(&as->asfd);
     132             : 
     133           0 :         exit(0);
     134             : end:
     135           1 :         free_w(&copy);
     136           1 :         free_w(&script_path);
     137           1 :         iobuf_free(&rbuf);
     138           1 :         return ret;
     139             : }