int read_some_events(struct thread_info *t) {
struct io_unit *event_io;
struct io_event *event;
int nr;
int i;
int min_nr = io_iter;
struct timeval stop_time;
if (t->num_global_pending < io_iter)
min_nr = t->num_global_pending;
#ifdef NEW_GETEVENTS
nr = io_getevents(t->io_ctx, min_nr, t->num_global_events, t->events,NULL);
#else
nr = io_getevents(t->io_ctx, t->num_global_events, t->events, NULL);
#endif
if (nr <= 0)
return nr;
gettimeofday(&stop_time, NULL);
for (i = 0 ; i < nr ; i++) {
event = t->events + i;
event_io = (struct io_unit *)((unsigned long)event->obj);
finish_io(t, event_io, event->res, &stop_time);
}
return nr;
}
/*
* wait for all pending requests for this io operation to finish
*/
static int io_oper_wait(struct thread_info *t, struct io_oper *oper) {
struct io_event event;
struct io_unit *event_io;
if (oper == NULL) {
return 0;
}
if (oper->num_pending == 0)
goto done;
/* this func is not speed sensitive, no need to go wild reading
* more than one event at a time
*/
#ifdef NEW_GETEVENTS
while(io_getevents(t->io_ctx, 1, 1, &event, NULL) > 0) {
#else
while(io_getevents(t->io_ctx, 1, &event, NULL) > 0) {
#endif
struct timeval tv_now;
event_io = (struct io_unit *)((unsigned long)event.obj);
gettimeofday(&tv_now, NULL);
finish_io(t, event_io, event.res, &tv_now);
if (oper->num_pending == 0)
break;
}
done:
if (oper->num_err) {
fprintf(stderr, "%u errors on oper, last %u\n",
oper->num_err, oper->last_err);
}
return 0;
}
off_t random_byte_offset(struct io_oper *oper) {
off_t num;
off_t rand_byte = oper->start;
off_t range;
off_t offset = 1;
range = (oper->end - oper->start) / (1024 * 1024);
if ((page_size_mask+1) > (1024 * 1024))
offset = (page_size_mask+1) / (1024 * 1024);
if (range < offset)
range = 0;
else
range -= offset;
/* find a random mb offset */
num = 1 + (int)((double)range * rand() / (RAND_MAX + 1.0 ));
rand_byte += num * 1024 * 1024;
/* find a random byte offset */
num = 1 + (int)((double)(1024 * 1024) * rand() / (RAND_MAX + 1.0));
/* page align */
num = (num + page_size_mask) & ~page_size_mask;
rand_byte += num;
if (rand_byte + oper->reclen > oper->end) {
rand_byte -= oper->reclen;
}
return rand_byte;
}
int main(int argc,char **argv)
{
URL *Url;
URL **list,*refresh;
int j;
if(argc==1)
{fprintf(stderr,"usage: test-doc URL < contents-of-url\n");return(1);}
StderrLevel=ExtraDebug;
InitErrorHandler("test-doc",0,1);
InitConfigurationFile("./wwwoffle.conf");
init_io(STDERR_FILENO);
if(ReadConfigurationFile(STDERR_FILENO))
PrintMessage(Fatal,"Error in configuration file 'wwwoffle.conf'.");
finish_io(STDERR_FILENO);
Url=SplitURL(argv[1]);
init_io(0);
ParseDocument(0,Url,1);
if((refresh=GetReference(RefMetaRefresh)))
printf("Refresh = %s\n",refresh->file);
if((list=GetReferences(RefStyleSheet)))
for(j=0;list[j];j++)
printf("StyleSheet = %s\n",list[j]->file);
if((list=GetReferences(RefImage)))
for(j=0;list[j];j++)
printf("Image = %s\n",list[j]->file);
if((list=GetReferences(RefFrame)))
for(j=0;list[j];j++)
printf("Frame = %s\n",list[j]->file);
if((list=GetReferences(RefScript)))
for(j=0;list[j];j++)
printf("Script = %s\n",list[j]->file);
if((list=GetReferences(RefObject)))
for(j=0;list[j];j++)
printf("Object = %s\n",list[j]->file);
if((list=GetReferences(RefInlineObject)))
for(j=0;list[j];j++)
printf("InlineObject = %s\n",list[j]->file);
if((list=GetReferences(RefLink)))
for(j=0;list[j];j++)
printf("Link = %s\n",list[j]->file);
FreeURL(Url);
finish_io(0);
return(0);
}
void RequestMonitoredPages(void)
{
DIR *dir;
struct dirent* ent;
/* Open the monitor subdirectory. */
if(chdir("monitor"))
{PrintMessage(Warning,"Cannot change to directory 'monitor'; [%!s] no files monitored.");return;}
dir=opendir(".");
if(!dir)
{PrintMessage(Warning,"Cannot open directory 'monitor'; [%!s] no files monitored.");ChangeBackToSpoolDir();return;}
ent=readdir(dir);
if(!ent)
{PrintMessage(Warning,"Cannot read directory 'monitor'; [%!s] no files monitored.");closedir(dir);ChangeBackToSpoolDir();return;}
/* Scan through all of the files. */
do
{
struct stat buf;
if(ent->d_name[0]=='.' && (ent->d_name[1]==0 || (ent->d_name[1]=='.' && ent->d_name[2]==0)))
continue; /* skip . & .. */
if(stat(ent->d_name,&buf))
{PrintMessage(Inform,"Cannot stat file 'monitor/%s'; [%!s] race condition?",ent->d_name);return;}
else if(S_ISREG(buf.st_mode) && *ent->d_name=='O')
{
URL *Url=FileNameToURL(ent->d_name);
int last,next;
ChangeBackToSpoolDir();
if(!Url)
continue;
MonitorTimes(Url,&last,&next);
PrintMessage(Debug,"Monitoring '%s' last=%dh next=%dh => %s",Url->name,last,next,next?"No":"Yes");
chdir("monitor");
if(next==0)
{
int ifd=open(ent->d_name,O_RDONLY|O_BINARY);
if(ifd==-1)
PrintMessage(Warning,"Cannot open monitored file 'monitor/%s' to read; [%!s].",ent->d_name);
else
{
int ofd;
init_io(ifd);
ChangeBackToSpoolDir();
ofd=OpenNewOutgoingSpoolFile();
if(ofd==-1)
PrintMessage(Warning,"Cannot open outgoing spool file for monitored URL '%s'; [%!s].",Url->name);
else
{
char *contents=(char*)malloc(buf.st_size+1);
init_io(ofd);
read_data(ifd,contents,buf.st_size);
if(write_data(ofd,contents,buf.st_size)==-1)
PrintMessage(Warning,"Cannot write to outgoing file; disk full?");
finish_io(ofd);
CloseNewOutgoingSpoolFile(ofd,Url);
free(contents);
}
chdir("monitor");
finish_io(ifd);
close(ifd);
if(utime(URLToFileName(Url,'M',0),NULL))
PrintMessage(Warning,"Cannot change timestamp of monitored file 'monitor/%s'; [%!s].",URLToFileName(Url,'M',0));
}
}
FreeURL(Url);
}
}
while((ent=readdir(dir)));
ChangeBackToSpoolDir();
closedir(dir);
}
static void MonitorFormParse(int fd,URL *Url,char *request_args,Body *request_body)
{
int i,mfd=-1;
char **args,*url=NULL;
URL *monUrl;
char mofy[13]="NNNNNNNNNNNN",*dofm=NULL,dofw[8]="NNNNNNN",*hofd=NULL;
char MofY[13],DofM[32],DofW[8],HofD[25];
if(!request_args && !request_body)
{
HTMLMessage(fd,404,"WWWOFFLE Monitor Form Error",NULL,"MonitorFormError",
"body",NULL,
NULL);
return;
}
if(request_body)
{
char *form=URLRecodeFormArgs(request_body->content);
args=SplitFormArgs(form);
free(form);
}
else
args=SplitFormArgs(request_args);
for(i=0;args[i];i++)
{
if(!strncmp("url=",args[i],(size_t)4))
url=TrimArgs(URLDecodeFormArgs(args[i]+4));
else if(!strncmp("mofy1=",args[i],(size_t)6))
mofy[0]=args[i][6];
else if(!strncmp("mofy2=",args[i],(size_t)6))
mofy[1]=args[i][6];
else if(!strncmp("mofy3=",args[i],(size_t)6))
mofy[2]=args[i][6];
else if(!strncmp("mofy4=",args[i],6))
mofy[3]=args[i][6];
else if(!strncmp("mofy5=",args[i],(size_t)6))
mofy[4]=args[i][6];
else if(!strncmp("mofy6=",args[i],(size_t)6))
mofy[5]=args[i][6];
else if(!strncmp("mofy7=",args[i],(size_t)6))
mofy[6]=args[i][6];
else if(!strncmp("mofy8=",args[i],(size_t)6))
mofy[7]=args[i][6];
else if(!strncmp("mofy9=",args[i],(size_t)6))
mofy[8]=args[i][6];
else if(!strncmp("mofy10=",args[i],(size_t)7))
mofy[9]=args[i][7];
else if(!strncmp("mofy11=",args[i],(size_t)7))
mofy[10]=args[i][7];
else if(!strncmp("mofy12=",args[i],(size_t)7))
mofy[11]=args[i][7];
else if(!strncmp("dofm=",args[i],(size_t)5))
dofm=args[i]+5;
else if(!strncmp("dofw0=",args[i],(size_t)6))
dofw[0]=args[i][6];
else if(!strncmp("dofw1=",args[i],(size_t)6))
dofw[1]=args[i][6];
else if(!strncmp("dofw2=",args[i],(size_t)6))
dofw[2]=args[i][6];
else if(!strncmp("dofw3=",args[i],(size_t)6))
dofw[3]=args[i][6];
else if(!strncmp("dofw4=",args[i],(size_t)6))
dofw[4]=args[i][6];
else if(!strncmp("dofw5=",args[i],(size_t)6))
dofw[5]=args[i][6];
else if(!strncmp("dofw6=",args[i],(size_t)6))
dofw[6]=args[i][6];
else if(!strncmp("hofd=",args[i],(size_t)5))
hofd=args[i]+5;
else
PrintMessage(Warning,"Unexpected argument '%s' seen decoding form data for URL '%s'.",args[i],Url->name);
}
if(url==NULL || *url==0)
{
HTMLMessage(fd,404,"WWWOFFLE Monitor Form Error",NULL,"MonitorFormError",
"body",request_body?request_body->content:request_args,
NULL);
if(url) free(url);
free(args[0]);
free(args);
return;
}
monUrl=SplitURL(url);
free(url);
/* Parse the requested time */
strcpy(MofY,"000000000000");
for(i=0;i<12;i++)
if(mofy[i]=='Y')
MofY[i]='1';
if(!dofm || !*dofm)
strcpy(DofM,"1111111111111111111111111111111");
else
{
int d,any=0,range=0,lastd=0;
char *p=dofm;
strcpy(DofM,"0000000000000000000000000000000");
while(*p)
{
while(*p && !isdigit(*p))
{
if(*p=='*')
{
strcpy(DofM,"1111111111111111111111111111111");
any=1;
}
if(*p=='-')
range=1;
p++;
}
if(!*p)
break;
d=atoi(p)-1;
if(range)
{
if(d>30)
d=30;
for(;lastd<=d;lastd++)
DofM[lastd]='1';
range=0;
any++;
}
else if(d>=0 && d<31)
{
DofM[d]='1';
any++;
lastd=d;
}
while(isdigit(*p))
p++;
}
if(range)
for(;lastd<=30;lastd++)
DofM[lastd]='1';
else
if(!any)
strcpy(DofM,"1111111111111111111111111111111");
}
strcpy(DofW,"0000000");
for(i=0;i<7;i++)
if(dofw[i]=='Y')
DofW[i]='1';
if(!hofd || !*hofd)
strcpy(HofD,"100000000000000000000000");
else
{
int h,any=0,range=0,lasth=0;
char *p=hofd;
strcpy(HofD,"000000000000000000000000");
while(*p)
{
while(*p && !isdigit(*p))
{
if(*p=='*')
{
strcpy(HofD,"111111111111111111111111");
any=1;
}
if(*p=='-')
range=1;
p++;
}
if(!*p)
break;
h=atoi(p);
if(range)
{
if(h>23)
h=23;
for(;lasth<=h;lasth++)
HofD[lasth]='1';
range=0;
any++;
}
else if(h>=0 && h<24)
{
HofD[h]='1';
any++;
lasth=h;
}
while(isdigit(*p))
p++;
}
if(range)
for(;lasth<=23;lasth++)
HofD[lasth]='1';
else
if(!any)
strcpy(HofD,"100000000000000000000000");
}
mfd=CreateMonitorSpoolFile(monUrl,MofY,DofM,DofW,HofD);
if(mfd==-1)
HTMLMessage(fd,500,"WWWOFFLE Server Error",NULL,"ServerError",
"error","Cannot open file to store monitor request",
NULL);
else
{
Header *new_request_head=RequestURL(monUrl,NULL);
char *head=HeaderString(new_request_head);
init_io(mfd);
write_string(mfd,head);
finish_io(mfd);
close(mfd);
HTMLMessage(fd,200,"WWWOFFLE Monitor Will Get",NULL,"MonitorWillGet",
"url",monUrl->name,
NULL);
free(head);
FreeHeader(new_request_head);
}
free(args[0]);
free(args);
FreeURL(monUrl);
}
int main(int argc, char** argv)
{
int i;
int err;
struct stat buf;
int uid,gid;
/* Parse the command line options */
for(i=1;i<argc;i++)
{
if(!strcmp(argv[i],"-h") || !strcmp(argv[i],"--help"))
usage(1);
if(!strcmp(argv[i],"--version"))
usage(2);
if(!strcmp(argv[i],"-d"))
{
detached=0;
if(i<(argc-1) && isdigit(argv[i+1][0]))
{
StderrLevel=Fatal+1-atoi(argv[++i]);
if(StderrLevel<0 || StderrLevel>Fatal)
{fprintf(stderr,"wwwoffled: The '-d' option requires a number between 0 and %d.\n",Fatal+1); exit(1);}
}
continue;
}
if(!strcmp(argv[i],"-l"))
{
if(++i>=argc)
{fprintf(stderr,"wwwoffled: The '-l' option requires a filename.\n"); exit(1);}
if(argv[i][0]!='/')
{fprintf(stderr,"wwwoffled: The '-l' option requires an absolute pathname.\n"); exit(1);}
log_file=argv[i];
continue;
}
if(!strcmp(argv[i],"-p"))
{
print_pid=1;
continue;
}
if(!strcmp(argv[i],"-f"))
{
nofork=1;
detached=0;
continue;
}
if(!strcmp(argv[i],"-c"))
{
if(++i>=argc)
{fprintf(stderr,"wwwoffled: The '-c' option requires a filename.\n"); exit(1);}
config_file=argv[i];
continue;
}
fprintf(stderr,"wwwoffled: Unknown option '%s'.\n",argv[i]); exit(1);
}
/* Combination options */
if(log_file)
{
if(nofork)
log_file=NULL; /* -f overrides -l */
else
detached=1; /* -l overrides -d */
if(StderrLevel==-1)
StderrLevel=Inform; /* -l sets log level if no -d */
}
/* Initialise things. */
for(i=0;i<MAX_FETCH_SERVERS;i++)
fetch_pids[i]=0;
for(i=0;i<MAX_SERVERS;i++)
server_pids[i]=0;
if(log_file)
OpenErrorLog(log_file);
InitErrorHandler("wwwoffled",0,1); /* use stderr and not syslog to start with. */
/* Read the configuration file. */
InitConfigurationFile(config_file);
init_io(STDERR_FILENO);
if(ReadConfigurationFile(STDERR_FILENO))
PrintMessage(Fatal,"Error in configuration file '%s'.",ConfigurationFileName());
finish_io(STDERR_FILENO);
InitErrorHandler("wwwoffled",ConfigInteger(UseSyslog),1); /* enable syslog if requested. */
/* Print a startup message. */
#if USE_IPV6
#define IPV6_STRING "with ipv6"
#else
#define IPV6_STRING "without ipv6"
#endif
#define ZLIB_STRING "with zlib"
#define GNUTLS_STRING "with gnutls"
PrintMessage(Important,"WWWOFFLE Demon Version %s (%s,%s,%s) started.",WWWOFFLE_VERSION,IPV6_STRING,ZLIB_STRING,GNUTLS_STRING);
PrintMessage(Inform,"WWWOFFLE Read Configuration File '%s'.",ConfigurationFileName());
/* Change the user and group. */
gid=ConfigInteger(WWWOFFLE_Gid);
uid=ConfigInteger(WWWOFFLE_Uid);
if(uid!=-1)
seteuid(0);
if(log_file && (uid!=-1 || gid!=-1))
chown(log_file,(uid_t)uid,(gid_t)gid);
if(gid!=-1)
{
#if HAVE_SETGROUPS
if(getuid()==0 || geteuid()==0)
if(setgroups(0,NULL)<0)
PrintMessage(Fatal,"Cannot clear supplementary group list [%!s].");
#endif
#if HAVE_SETRESGID
if(setresgid((gid_t)gid,(gid_t)gid,(gid_t)gid)<0)
PrintMessage(Fatal,"Cannot set real/effective/saved group id to %d [%!s].",gid);
#else
if(geteuid()==0)
{
if(setgid((gid_t)gid)<0)
PrintMessage(Fatal,"Cannot set group id to %d [%!s].",gid);
}
else
{
#if HAVE_SETREGID
if(setregid(getegid(),(gid_t)gid)<0)
PrintMessage(Fatal,"Cannot set effective group id to %d [%!s].",gid);
if(setregid((gid_t)gid,(gid_t)~1)<0)
PrintMessage(Fatal,"Cannot set real group id to %d [%!s].",gid);
#else
PrintMessage(Fatal,"Must be root to totally change group id.");
#endif
}
#endif
}
if(uid!=-1)
{
#if HAVE_SETRESUID
if(setresuid((uid_t)uid,(uid_t)uid,(uid_t)uid)<0)
PrintMessage(Fatal,"Cannot set real/effective/saved user id to %d [%!s].",uid);
#else
if(geteuid()==0)
{
if(setuid((uid_t)uid)<0)
PrintMessage(Fatal,"Cannot set user id to %d [%!s].",uid);
}
else
{
#if HAVE_SETREUID
if(setreuid(geteuid(),(uid_t)uid)<0)
PrintMessage(Fatal,"Cannot set effective user id to %d [%!s].",uid);
if(setreuid((uid_t)uid,(uid_t)~1)<0)
PrintMessage(Fatal,"Cannot set real user id to %d [%!s].",uid);
#else
PrintMessage(Fatal,"Must be root to totally change user id.");
#endif
}
#endif
}
if(uid!=-1 || gid!=-1)
PrintMessage(Inform,"Running with uid=%d, gid=%d.",geteuid(),getegid());
if(geteuid()==0 || getegid()==0)
PrintMessage(Warning,"Running with root user or group privileges is not recommended.");
/* Create, Change to and open the spool directory. */
umask(0);
if(stat(ConfigString(SpoolDir),&buf))
{
err=mkdir(ConfigString(SpoolDir),(mode_t)ConfigInteger(DirPerm));
if(err==-1 && errno!=EEXIST)
PrintMessage(Fatal,"Cannot create spool directory %s [%!s].",ConfigString(SpoolDir));
stat(ConfigString(SpoolDir),&buf);
}
if(!S_ISDIR(buf.st_mode))
PrintMessage(Fatal,"The spool directory %s is not a directory.",SpoolDir);
err=ChangeToSpoolDir(ConfigString(SpoolDir));
if(err==-1)
PrintMessage(Fatal,"Cannot change to spool directory %s [%!s].",ConfigString(SpoolDir));
/* Bind the HTTP proxy socket(s). */
#if USE_IPV6
if(ConfigString(Bind_IPv6))
{
http_fd[1]=OpenServerSocket(ConfigString(Bind_IPv6),ConfigInteger(HTTP_Port));
if(http_fd[1]==-1)
PrintMessage(Fatal,"Cannot create HTTP IPv6 server socket.");
}
#endif
if(ConfigString(Bind_IPv4))
{
http_fd[0]=OpenServerSocket(ConfigString(Bind_IPv4),ConfigInteger(HTTP_Port));
if(http_fd[0]==-1)
{
#if USE_IPV6
if(http_fd[1]!=-1 && /* PS 2003-01-13 redundant? If IPv6 is listening to 0 then it doesn't matter what address IPv4 is listening to... (at least on linux?) */
/* ConfigString(Bind_IPv4) && !strcmp(ConfigString(Bind_IPv4),"0.0.0.0") && */
ConfigString(Bind_IPv6) && !strcmp(ConfigString(Bind_IPv6),"[0:0:0:0:0:0:0:0]"))
PrintMessage(Warning,"Cannot create HTTP IPv4 server socket (but the IPv6 one might accept IPv4 connections).");
else
PrintMessage(Fatal,"Cannot create HTTP IPv4 server socket.");
#else
PrintMessage(Fatal,"Cannot create HTTP server socket.");
#endif
}
}
if(http_fd[0]==-1 && http_fd[1]==-1)
{
#if USE_IPV6
PrintMessage(Fatal,"The IPv4 and IPv6 HTTP sockets were not bound; are they disabled in the config file?");
#else
PrintMessage(Fatal,"The HTTP socket was not bound; is it disabled in the config file?");
#endif
}
/* Bind the HTTPS socket(s). */
if(LoadRootCredentials())
{
PrintMessage(Warning,"Failed to read (or create if needed) the WWWOFFLE root certificates.");
}
if(LoadTrustedCertificates())
{
PrintMessage(Warning,"Failed to read in any trusted certificates.");
}
#if USE_IPV6
if(ConfigString(Bind_IPv6))
{
https_fd[1]=OpenServerSocket(ConfigString(Bind_IPv6),ConfigInteger(HTTPS_Port));
if(https_fd[1]==-1)
PrintMessage(Fatal,"Cannot create HTTPS IPv6 server socket.");
}
#endif
if(ConfigString(Bind_IPv4))
{
https_fd[0]=OpenServerSocket(ConfigString(Bind_IPv4),ConfigInteger(HTTPS_Port));
if(https_fd[0]==-1)
{
#if USE_IPV6
if(https_fd[1]!=-1 && ConfigString(Bind_IPv4) && !strcmp(ConfigString(Bind_IPv4),"0.0.0.0") &&
ConfigString(Bind_IPv6) && !strcmp(ConfigString(Bind_IPv6),"[0:0:0:0:0:0:0:0]"))
PrintMessage(Warning,"Cannot create HTTPS IPv4 server socket (but the IPv6 one might accept IPv4 connections).");
else
PrintMessage(Fatal,"Cannot create HTTPS IPv4 server socket.");
#else
PrintMessage(Fatal,"Cannot create HTTPS server socket.");
#endif
}
}
if(https_fd[0]==-1 && https_fd[1]==-1)
{
#if USE_IPV6
PrintMessage(Fatal,"The IPv4 and IPv6 HTTPS sockets were not bound; are they disabled in the config file?");
#else
PrintMessage(Fatal,"The HTTPS socket was not bound; is it disabled in the config file?");
#endif
}
/* Bind the WWWOFFLE control socket(s). */
#if USE_IPV6
if(ConfigString(Bind_IPv6))
{
wwwoffle_fd[1]=OpenServerSocket(ConfigString(Bind_IPv6),ConfigInteger(WWWOFFLE_Port));
if(wwwoffle_fd[1]==-1)
PrintMessage(Fatal,"Cannot create WWWOFFLE IPv6 server socket.");
}
#endif
if(ConfigString(Bind_IPv4))
{
wwwoffle_fd[0]=OpenServerSocket(ConfigString(Bind_IPv4),ConfigInteger(WWWOFFLE_Port));
if(wwwoffle_fd[0]==-1)
{
#if USE_IPV6
if(wwwoffle_fd[1]!=-1 && ConfigString(Bind_IPv4) && !strcmp(ConfigString(Bind_IPv4),"0.0.0.0") &&
ConfigString(Bind_IPv6) && !strcmp(ConfigString(Bind_IPv6),"[0:0:0:0:0:0:0:0]")) {
PrintMessage(Warning,"Cannot create WWWOFFLE IPv4 server socket (but the IPv6 one might accept IPv4 connections).");
PrintMessage(Warning,"Consider adding \"bind-ipv4 = none\" to wwwoffle.conf if using IPv6.");
}
else
PrintMessage(Fatal,"Cannot create WWWOFFLE IPv4 server socket.");
#else
PrintMessage(Fatal,"Cannot create WWWOFFLE server socket.");
#endif
}
}
if(wwwoffle_fd[0]==-1 && wwwoffle_fd[1]==-1)
{
#if USE_IPV6
PrintMessage(Fatal,"The IPv4 and IPv6 WWWOFFLE sockets were not bound; are they disabled in the config file?");
#else
PrintMessage(Fatal,"The WWWOFFLE socket was not bound; is it disabled in the config file?");
#endif
}
/* Detach from terminal */
if(detached)
{
demoninit();
PrintMessage(Important,"Detached from terminal and changed pid to %d.",getpid());
if(log_file)
InitErrorHandler("wwwoffled",-1,-1); /* pid changes after detaching, keep stderr as was. */
else
InitErrorHandler("wwwoffled",-1, 0); /* pid changes after detaching, disable stderr. */
if(!log_file)
close(STDERR_FILENO);
}
close(STDIN_FILENO);
close(STDOUT_FILENO);
install_sighandlers();
max_servers=ConfigInteger(MaxServers);
max_fetch_servers=ConfigInteger(MaxFetchServers);
/* Loop around waiting for connections. */
PrintMessage(Inform,"WWWOFFLE Ready to accept connections.");
do
{
struct timeval tv;
fd_set readfd;
int nfds=0,nfd=0;
FD_ZERO(&readfd);
#if USE_IPV6
for(nfd=0;nfd<=1;nfd++)
{
#endif
if(http_fd[nfd]>=nfds)
nfds=http_fd[nfd]+1;
if(https_fd[nfd]>=nfds)
nfds=https_fd[nfd]+1;
if(wwwoffle_fd[nfd]>=nfds)
nfds=wwwoffle_fd[nfd]+1;
if(n_servers<max_servers)
{
if(http_fd[nfd]!=-1)
FD_SET(http_fd[nfd],&readfd);
if(https_fd[nfd]!=-1)
FD_SET(https_fd[nfd],&readfd);
}
if(wwwoffle_fd[nfd]!=-1)
FD_SET(wwwoffle_fd[nfd],&readfd);
#if USE_IPV6
}
#endif
tv.tv_sec=10;
tv.tv_usec=0;
if(select(nfds,&readfd,NULL,NULL,&tv)!=-1)
{
#if USE_IPV6
for(nfd=0;nfd<=1;nfd++)
{
#endif
if(wwwoffle_fd[nfd]!=-1 && FD_ISSET(wwwoffle_fd[nfd],&readfd))
{
char *host,*ip;
int port,client;
client=AcceptConnect(wwwoffle_fd[nfd]);
if(client>=0)
{
init_io(client);
configure_io_timeout(client,ConfigInteger(SocketTimeout),ConfigInteger(SocketTimeout));
if(SocketRemoteName(client,&host,&ip,&port))
{
finish_io(client);
CloseSocket(client);
}
else
{
char *canonical_ip=CanonicaliseHost(ip);
if(IsAllowedConnectHost(host) || IsAllowedConnectHost(canonical_ip))
{
PrintMessage(Important,"WWWOFFLE Connection from host %s (%s).",host,canonical_ip); /* Used in audit-usage.pl */
CommandConnect(client);
if(fetch_fd!=client)
{
finish_io(client);
CloseSocket(client);
}
}
else
{
PrintMessage(Warning,"WWWOFFLE Connection rejected from host %s (%s).",host,canonical_ip); /* Used in audit-usage.pl */
finish_io(client);
CloseSocket(client);
}
free(canonical_ip);
}
}
}
if(http_fd[nfd]!=-1 && FD_ISSET(http_fd[nfd],&readfd))
{
char *host,*ip;
int port,client;
client=AcceptConnect(http_fd[nfd]);
if(client>=0)
{
init_io(client);
configure_io_timeout(client,ConfigInteger(SocketTimeout),ConfigInteger(SocketTimeout));
if(!SocketRemoteName(client,&host,&ip,&port))
{
char *canonical_ip=CanonicaliseHost(ip);
if(IsAllowedConnectHost(host) || IsAllowedConnectHost(canonical_ip))
{
PrintMessage(Inform,"HTTP Proxy connection from host %s (%s).",host,canonical_ip); /* Used in audit-usage.pl */
ForkServer(client);
}
else
PrintMessage(Warning,"HTTP Proxy connection rejected from host %s (%s).",host,canonical_ip); /* Used in audit-usage.pl */
free(canonical_ip);
}
if(nofork)
got_sigexit=1;
if(!nofork)
{
finish_io(client);
CloseSocket(client);
}
}
}
if(https_fd[nfd]!=-1 && FD_ISSET(https_fd[nfd],&readfd))
{
char *host,*ip;
int port,client;
client=AcceptConnect(https_fd[nfd]);
if(client>=0)
{
init_io(client);
configure_io_timeout(client,ConfigInteger(SocketTimeout),ConfigInteger(SocketTimeout));
if(!SocketRemoteName(client,&host,&ip,&port))
{
char *canonical_ip=CanonicaliseHost(ip);
if(IsAllowedConnectHost(host) || IsAllowedConnectHost(canonical_ip))
{
PrintMessage(Inform,"HTTPS Proxy connection from host %s (%s).",host,canonical_ip); /* Used in audit-usage.pl */
ForkServer(client);
}
else
PrintMessage(Warning,"HTTPS Proxy connection rejected from host %s (%s).",host,canonical_ip); /* Used in audit-usage.pl */
free(canonical_ip);
}
if(nofork)
got_sigexit=1;
if(!nofork)
{
finish_io(client);
CloseSocket(client);
}
}
}
#if USE_IPV6
}
#endif
}
if(got_sighup)
{
got_sighup=0;
PrintMessage(Important,"SIGHUP signalled.");
if(log_file)
{
PrintMessage(Important,"Closing and opening log file.");
OpenErrorLog(log_file);
}
PrintMessage(Important,"WWWOFFLE Re-reading Configuration File.");
if(ReadConfigurationFile(-1))
PrintMessage(Warning,"Error in configuration file; keeping old values.");
PrintMessage(Important,"WWWOFFLE Finished Re-reading Configuration File.");
}
if(got_sigchld)
{
int pid, status;
int isserver=0;
/* To avoid race conditions, reset the flag before fetching the status */
got_sigchld=0;
while((pid=waitpid(-1,&status,WNOHANG))>0)
{
int i;
int exitval=0;
if(WIFEXITED(status))
exitval=WEXITSTATUS(status);
else if(WIFSIGNALED(status))
exitval=-WTERMSIG(status);
if(purging)
if(purge_pid==pid)
{
if(exitval>=0)
PrintMessage(Inform,"Purge process exited with status %d (pid=%d).",exitval,pid);
else
PrintMessage(Important,"Purge process terminated by signal %d (pid=%d).",-exitval,pid);
purging=0;
}
for(i=0;i<max_servers;i++)
if(server_pids[i]==pid)
{
n_servers--;
server_pids[i]=0;
isserver=1;
if(exitval>=0)
PrintMessage(Inform,"Child wwwoffles exited with status %d (pid=%d).",exitval,pid);
else
PrintMessage(Important,"Child wwwoffles terminated by signal %d (pid=%d).",-exitval,pid);
break;
}
/* Check if the child that terminated is one of the fetching wwwoffles */
for(i=0;i<max_fetch_servers;i++)
if(fetch_pids[i]==pid)
{
n_fetch_servers--;
fetch_pids[i]=0;
break;
}
if(exitval==3)
fetching=0;
if(exitval==4 && online!=0)
fetching=1;
if(online==0)
fetching=0;
}
if(isserver)
PrintMessage(Debug,"Currently running: %d servers total, %d fetchers.",n_servers,n_fetch_servers);
}
/* The select timed out or we got a signal. If we are currently fetching,
start fetch servers to look for jobs in the spool directory. */
while(fetching && n_fetch_servers<max_fetch_servers && n_servers<max_servers)
ForkServer(fetch_fd);
if(fetch_fd!=-1 && !fetching && n_fetch_servers==0)
{
write_string(fetch_fd,"WWWOFFLE No more to fetch.\n");
finish_io(fetch_fd);
CloseSocket(fetch_fd);
fetch_fd=-1;
PrintMessage(Important,"WWWOFFLE Fetch finished.");
ForkRunModeScript(ConfigString(RunFetch),"fetch","stop",-1);
}
}
while(!got_sigexit);
/* Close down and exit. */
/* These four sockets don't need finish_io() calling because they never
had init_io() called, they are just bound to a port listening. */
if(http_fd[0]!=-1) CloseSocket(http_fd[0]);
if(http_fd[1]!=-1) CloseSocket(http_fd[1]);
if(wwwoffle_fd[0]!=-1) CloseSocket(wwwoffle_fd[0]);
if(wwwoffle_fd[1]!=-1) CloseSocket(wwwoffle_fd[1]);
if(!nofork)
{
if(n_servers)
PrintMessage(Important,"Exit signalled - waiting for %d child wwwoffles servers.",n_servers);
else
PrintMessage(Important,"Exit signalled.");
}
while(n_servers)
{
int i;
int pid,status,exitval=0;
while((pid=waitpid(-1,&status,0))>0)
{
if(WIFEXITED(status))
exitval=WEXITSTATUS(status);
else if(WIFSIGNALED(status))
exitval=-WTERMSIG(status);
for(i=0;i<max_servers;i++)
if(server_pids[i]==pid)
{
n_servers--;
server_pids[i]=0;
if(exitval>=0)
PrintMessage(Inform,"Child wwwoffles exited with status %d (pid=%d).",exitval,pid);
else
PrintMessage(Important,"Child wwwoffles terminated by signal %d (pid=%d).",-exitval,pid);
break;
}
if(purging)
if(purge_pid==pid)
{
if(exitval>=0)
PrintMessage(Inform,"Purge process exited with status %d (pid=%d).",exitval,pid);
else
PrintMessage(Important,"Purge process terminated by signal %d (pid=%d).",-exitval,pid);
purging=0;
}
}
}
PrintMessage(Important,"Exiting.");
FinishConfigurationFile();
FreeLoadedCredentials();
return(0);
}