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| 10 | reyssat | 1 | /* Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis |
| 2 | * |
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| 3 | * This program is free software; you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation; either version 2 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 16 | */ |
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| 17 | |||
| 18 | /* This file contains a routine to do housekeeping: |
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| 19 | * it erases obsolete session directories. |
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| 20 | * Regular checkup every 10 minutes or so. */ |
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| 21 | |||
| 22 | /* internal */ |
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| 23 | void _cleaning(char *di,int hardcheck) |
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| 24 | { |
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| 25 | DIR *sdir_base; |
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| 26 | struct dirent *ses; |
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| 27 | struct stat session_stat; |
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| 28 | char session_name[MAX_LINELEN+1]; |
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| 29 | |||
| 30 | sdir_base=opendir(di); |
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| 31 | if(sdir_base==NULL) return; |
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| 32 | while((ses=readdir(sdir_base))!=NULL) { |
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| 33 | if(ses->d_name[0]=='.') continue; |
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| 34 | snprintf(session_name,sizeof(session_name),"%s/%s", |
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| 35 | di,ses->d_name); |
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| 36 | if(lstat(session_name,&session_stat)) { |
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| 37 | error("wimslog cleaning(): session stat failure."); |
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| 38 | return; |
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| 39 | } |
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| 40 | if(!S_ISDIR(session_stat.st_mode)) { /* not a directory: remove it. */ |
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| 41 | if(remove(session_name)<0) { |
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| 42 | error("wimslogd cleaning(): unable to chase squatter file."); |
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| 43 | return; |
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| 44 | } |
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| 45 | } |
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| 46 | /* remove idle session. */ |
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| 47 | else { |
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| 48 | struct stat fst; |
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| 49 | char fbuf[4096],cbuf[MAX_LINELEN+1]; |
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| 50 | char *pp; |
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| 51 | if(session_stat.st_mtime<nowtime-idle_time || |
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| 52 | session_stat.st_mtime>nowtime+anti_time) { |
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| 53 | remove: |
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| 54 | if(remove_tree(session_name)!=0) { |
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| 55 | if(strstr(session_name,"chroot")!=NULL) { |
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| 56 | char tbuf[4096]; |
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| 57 | snprintf(tbuf,sizeof(tbuf),"/%s",session_name); |
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| 58 | setenv("tmp_dir",tbuf,1); |
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| 59 | chmod(session_name, |
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| 60 | S_IRUSR|S_IWUSR|S_IXUSR| |
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| 61 | S_IRGRP|S_IWGRP|S_IXGRP| |
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| 62 | S_IROTH|S_IWOTH|S_IXOTH); |
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| 63 | chdir("public_html"); |
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| 64 | call_ssh(1,"bin/ch..root cleantmpdir"); |
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| 65 | chdir(cwd); |
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| 66 | chmod(session_name,S_IRUSR|S_IWUSR|S_IXUSR); |
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| 67 | fprintf(stderr,"%s\n",tbuf); |
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| 68 | } |
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| 69 | if(remove_tree(session_name)!=0) { |
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| 70 | fprintf(stderr,"Unable to remove session %s: %s.\n", |
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| 71 | session_name,strerror(errno)); |
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| 72 | } |
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| 73 | } |
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| 74 | continue; |
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| 75 | } |
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| 76 | if(hardcheck==2) { |
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| 77 | char dbuf[MAX_FNAME+1]; |
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| 78 | struct dirent *s2d; |
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| 79 | struct stat fst; |
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| 80 | int t; |
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| 81 | DIR *s2D; |
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| 82 | snprintf(dbuf,sizeof(dbuf),"%s/%s",sesd,ses->d_name); |
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| 83 | if(ftest(dbuf)!=is_dir) goto remove; |
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| 84 | s2D=opendir(session_name); |
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| 85 | if(sdir_base==NULL) goto remove; |
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| 86 | while((s2d=readdir(s2D))!=NULL) { /* remove individual files */ |
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| 87 | snprintf(dbuf,sizeof(dbuf),"%s/%s",session_name,s2d->d_name); |
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| 88 | t=stat(dbuf,&fst); |
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| 89 | if(t==0 && fst.st_mtime<nowtime-INS_DELAY && |
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| 90 | fst.st_mtime>=nowtime+anti_time) remove(dbuf); |
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| 91 | } |
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| 92 | closedir(s2D); |
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| 93 | continue; |
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| 94 | } |
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| 95 | if(!hardcheck || strchr(session_name,'_')!=NULL) continue; |
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| 96 | if(session_stat.st_mtime>=nowtime-idle_time3 && |
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| 97 | session_stat.st_mtime<nowtime+anti_time) continue; |
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| 98 | snprintf(fbuf,sizeof(fbuf),"%s/var.stat",session_name); |
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| 99 | if(stat(fbuf,&fst)==0) continue; |
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| 100 | accessfile(cbuf,"r","%s/var",session_name); |
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| 101 | if(cbuf[0]==0) goto remove; /* no var file */ |
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| 102 | pp=strstr(cbuf,"\nw_wims_ismanager="); |
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| 103 | if(pp!=NULL) { |
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| 104 | pp+=strlen("\nw_wims_ismanager="); |
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| 105 | if(*pp>'0' && *pp<='9') continue; |
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| 106 | } |
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| 107 | if(session_stat.st_mtime<nowtime-idle_time2 || |
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| 108 | session_stat.st_mtime>nowtime+anti_time) goto remove; |
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| 109 | if(session_stat.st_mtime<nowtime-idle_time3 && |
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| 110 | strstr(cbuf,"\nwims_new_session=yes\n")!=NULL) goto remove; |
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| 111 | /* popup session: 50 sec only. */ |
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| 112 | if(session_stat.st_mtime<nowtime-50 && |
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| 113 | strstr(cbuf,"\nw_wims_mode=popup\n")!=NULL) goto remove; |
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| 114 | } |
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| 115 | } |
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| 116 | closedir(sdir_base); |
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| 117 | } |
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| 118 | |||
| 119 | /* Clean obsolete session directories. */ |
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| 120 | void cleaning(int withmain) |
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| 121 | { |
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| 122 | struct stat lastclean_stat; |
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| 123 | pid_t pid; |
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| 124 | char lastclean_name[MAX_FNAME+1]; |
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| 125 | FILE *lastclean; |
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| 126 | /* Active only if idle_time>0 */ |
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| 127 | if(idle_time<=0) return; |
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| 128 | /* when is last clean? */ |
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| 129 | if(lastcleantime>nowtime-300) return; |
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| 130 | mystrncpy(lastclean_name,"tmp/log/lastclean",sizeof(lastclean_name)); |
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| 131 | if(stat(lastclean_name,&lastclean_stat)==0 && |
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| 132 | lastclean_stat.st_mtime>nowtime-300 && |
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| 133 | lastclean_stat.st_mtime<nowtime+100) return; |
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| 134 | fflush(NULL); |
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| 135 | pid=fork(); if(pid>0) {addfork(pid,0); return;} |
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| 136 | close(commsock); |
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| 137 | if(withmain) _cleaning(sesd,1); |
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| 138 | _cleaning("s2",2); |
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| 139 | _cleaning("tmp/sessions",0); |
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| 140 | _cleaning("chroot/tmp/sessions",0); |
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| 141 | /* touch lastclean file */ |
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| 142 | lastclean=fopen(lastclean_name,"w"); fclose(lastclean); |
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| 143 | lastcleantime=nowtime; |
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| 144 | snprintf(lastclean_name,sizeof(lastclean_name),"%s/trap.check",tmpd); |
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| 145 | if(stat(lastclean_name,&lastclean_stat)==0 && |
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| 146 | (lastclean_stat.st_mtime<nowtime-3600 || |
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| 147 | lastclean_stat.st_mtime>nowtime+anti_time)) unlink(lastclean_name); |
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| 148 | exit(0); |
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| 149 | } |
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| 150 |