summaryrefslogtreecommitdiffabout
path: root/src/sitecing-fastcgi.cc
authorMichael Krelin <hacker@klever.net>2005-01-29 21:21:05 (UTC)
committer Michael Krelin <hacker@klever.net>2005-01-29 21:21:05 (UTC)
commitce1f37aae46ea95020d7b865f7a80e8abdfad0d8 (patch) (side-by-side diff)
tree4964383ab8cd7e6d8ea821f1a615d1bbcf98dad8 /src/sitecing-fastcgi.cc
parent3c75c860fc1ad5b3f5185e23ec6f438dd2528958 (diff)
downloadsitecing-0.0.zip
sitecing-0.0.tar.gz
sitecing-0.0.tar.bz2
initial commit into repository0.0
Diffstat (limited to 'src/sitecing-fastcgi.cc') (more/less context) (show whitespace changes)
-rw-r--r--src/sitecing-fastcgi.cc325
1 files changed, 325 insertions, 0 deletions
diff --git a/src/sitecing-fastcgi.cc b/src/sitecing-fastcgi.cc
new file mode 100644
index 0000000..963c257
--- a/dev/null
+++ b/src/sitecing-fastcgi.cc
@@ -0,0 +1,325 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <signal.h>
+#include <getopt.h>
+#include <pwd.h>
+#include <grp.h>
+#include <errno.h>
+#include <syslog.h>
+#include <iostream>
+#include <memory>
+#include <typeinfo>
+using namespace std;
+#include "kingate/fastcgi.h"
+#include "kingate/cgi_gateway.h"
+using namespace kingate;
+#include "sitecing/sitecing_util.h"
+#include "sitecing/util.h"
+#include "sitecing/sitespace.h"
+#include "sitecing/sitecing_interface_cgi.h"
+#include "sitecing/cgi_component.h"
+#include "sitecing/configuration.h"
+#include "sitecing/magic.h"
+#include "sitecing/sitecing_exception.h"
+#include "sitecing/exception.h"
+#include "sitecing/process_manager.h"
+using namespace sitecing;
+
+#include "config.h"
+#define PHEADER PACKAGE " Version " VERSION
+#define PCOPY "Copyright (c) 2004 Klever Group"
+
+class cdummyClass : public acomponent {
+ public:
+ void main(int _magic,va_list _args) {}
+ void *__the_most_derived_this() { return NULL; }
+} cdummyInstance;
+class adummyClass : public cgi_component {
+ public:
+ void main(int _magic,va_list _args) {}
+ void *__the_most_derived_this() { return NULL; }
+} adummyInstance;
+
+class sitecing_fastcgi_pm : public process_manager {
+ public:
+ configuration config;
+ fcgi_socket *fss;
+ semaphore sem;
+ bool multi;
+ uid_t uid;
+ gid_t gid;
+ pid_file pidfile;
+
+ sitecing_fastcgi_pm(const string& config_file);
+ ~sitecing_fastcgi_pm();
+
+ void process(int slot);
+
+ void run();
+ void give_up_privs();
+};
+
+sitecing_fastcgi_pm::sitecing_fastcgi_pm(const string& config_file)
+ : config(config_file), multi(false) {
+ if(( (config.flags&configuration::flag_user) || (config.flags&configuration::flag_group) || (config.flags&configuration::flag_chroot) ) && geteuid() )
+ throw konforka::exception(CODEPOINT,"can't use User, Group or Chroot when started without root privileges");
+ if(config.flags&configuration::flag_user) {
+ struct passwd *ptmp = getpwnam(config.user.c_str());
+ if(ptmp) {
+ uid = ptmp->pw_uid;
+ }else{
+ errno=0;
+ uid = strtol(config.user.c_str(),NULL,0);
+ if(errno)
+ throw konforka::exception(CODEPOINT,"failed to resolve User value to uid");
+ }
+ }
+ if(config.flags&configuration::flag_group) {
+ struct group *gtmp = getgrnam(config.group.c_str());
+ if(gtmp) {
+ gid = gtmp->gr_gid;
+ }else{
+ errno=0;
+ gid = strtol(config.group.c_str(),NULL,0);
+ if(errno)
+ throw konforka::exception(CODEPOINT,"failed to resolve Group value to gid");
+ }
+ }
+ if(!(config.flags&configuration::flag_root_source))
+ throw konforka::exception(CODEPOINT,"unspecified root for sources");
+ if(!(config.flags&configuration::flag_root_intermediate))
+ throw konforka::exception(CODEPOINT,"unspecified root for intermediate files");
+ if(!(config.flags&configuration::flag_root_so))
+ throw konforka::exception(CODEPOINT,"unspecified root for shared objects");
+ if(config.flags&configuration::flag_min_children)
+ min_children = config.min_children;
+ if(config.flags&configuration::flag_max_children)
+ max_children = config.max_children;
+ if(config.flags&configuration::flag_min_spare_children)
+ min_spare_children = config.min_spare_children;
+ if(config.flags&configuration::flag_max_spare_children)
+ max_spare_children = config.max_spare_children;
+ if(max_children<min_spare_children)
+ throw konforka::exception(CODEPOINT,"inconsistent numbers of MaxChildren and MinSpareChildren");
+ if(min_children>max_spare_children && max_spare_children>=0)
+ throw konforka::exception(CODEPOINT,"inconsistent numbers of MinChildren and MaxSpareChildren");
+ if(config.flags&configuration::flag_multi_process) {
+ multi = config.multi_process;
+ }else{
+ if(config.flags&configuration::flag_listen_socket)
+ multi = true;
+ else
+ multi = false;
+ }
+ fss = (config.flags&configuration::flag_listen_socket)?new fcgi_socket(config.listen_socket.c_str(),5):new fcgi_socket(0);
+ if(!fss)
+ throw konforka::exception(CODEPOINT,"failed to establish listening socket");
+ if(config.flags&configuration::flag_daemonize && config.daemonize) {
+ pid_t pf = fork();
+ if(pf<0)
+ throw konforka::exception(CODEPOINT,"failed to fork()");
+ if(pf) {
+ die_humbly=true;
+ _exit(0);
+ }
+ }
+ if(config.flags&configuration::flag_pid_file) {
+ pidfile.set(config.pid_file);
+ }
+ if(multi)
+ sem.init();
+ }
+sitecing_fastcgi_pm::~sitecing_fastcgi_pm() {
+ if(fss)
+ delete fss;
+}
+
+void sitecing_fastcgi_pm::process(int slot) {
+ signal(SIGINT,SIG_DFL);
+ signal(SIGABRT,SIG_DFL);
+ signal(SIGTERM,SIG_DFL);
+ give_up_privs();
+ scoreboard_slot *sslot = sboard.get_slot(slot);
+ try {
+ sitespace ss(config);
+ fcgi_socket& fs = *fss;
+ sitecing_interface_cgi scif(&ss);
+ string component_path;
+ string action;
+ config_options::action_handler_t *action_handler;
+ int rpc = 0;
+ if(config.flags&configuration::flag_requests_per_child)
+ rpc = config.requests_per_child;
+ for(int req=0;(rpc<=0) || (req<rpc);rpc++) {
+ semaphore_lock sl;
+ if(multi) {
+ sslot->state = scoreboard_slot::state_idle;
+ sl.sem = &sem;
+ sl.lock();
+ }
+ sslot->state = scoreboard_slot::state_accept;
+ fcgi_interface fi(fs);
+ sslot->state = scoreboard_slot::state_processing;
+ if(multi)
+ sl.unlock();
+ cgi_gateway gw(fi);
+ scif.prepare(&gw);
+ try {
+ component_path = normalize_path(gw.get_meta("PATH_INFO"),strip_leading_slash|strip_trailing_slash);
+ string full_component_path;
+ while(true) {
+ full_component_path = config.root_source+'/'+component_path;
+ if(!access(full_component_path.c_str(),F_OK))
+ break;
+ string::size_type sl = component_path.rfind('/');
+ if(sl==string::npos)
+ throw konforka::exception(CODEPOINT,"can't find the target component");
+ component_path.erase(sl);
+ }
+ action = component_path;
+ action_handler = config.lookup_action_handler(component_path);
+ if(action_handler) {
+ action = action_handler->action;
+ }
+ string pwd = dir_name(full_component_path);
+ if(chdir(pwd.c_str()))
+ throw konforka::exception(CODEPOINT,"failed to chdir() into document's directory");
+ so_component soc = ss.fetch(action,&scif);
+ if(action_handler) {
+ soc.ac->run(__magic_action,
+ config.root_source.c_str(), config.root_intermediate.c_str(), config.root_so.c_str(),
+ &(action_handler->args)
+ );
+ }else{
+ soc.ac->main(0,NULL);
+ }
+ }catch(http_status& hs) {
+ scif.headers["Status"] = hs.status+" "+hs.message;
+ string hshp = config.lookup_http_status_handler(component_path,hs.status);
+ if(!hshp.empty()) {
+ so_component hsh = ss.fetch(hshp,&scif); // TODO: handle error trying to handle status
+ hsh.ac->run(__magic_http_status,config.root_source.c_str(),config.root_intermediate.c_str(),
+ config.root_so.c_str(),action.c_str(),&hs);
+ }
+ }catch(compile_error& ce) {
+ config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
+ if(co_exception_handler) {
+ so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
+ eh.ac->run(__magic_compile_error,ce.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),ce.component_path.c_str());
+ }else{
+ ce.see(CODEPOINT);
+ throw;
+ }
+ }catch(preprocessor_error& pe) {
+ config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
+ if(co_exception_handler) {
+ so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
+ eh.ac->run(__magic_preprocess_error,pe.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),pe.component_name.c_str(),pe.line_number);
+ }else{
+ pe.see(CODEPOINT);
+ throw;
+ }
+ }catch(exception& e) {
+ config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
+ if(co_exception_handler) {
+ so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
+ eh.ac->run(__magic_generic_exception,e.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),component_path.c_str(),&e);
+ }
+ }
+ scif.flush();
+ }
+ }catch(exception& e) {
+ cerr << "->Oops: " << e.what() << endl;
+ }
+}
+
+void sitecing_fastcgi_pm::run() {
+ if(multi)
+ manage();
+ else
+ process(0);
+}
+
+void sitecing_fastcgi_pm::give_up_privs() {
+ if(config.flags&configuration::flag_chroot) {
+ if(chroot(config.chroot.c_str()))
+ throw konforka::exception(CODEPOINT,"failed to chroot()");
+ }
+ if(config.flags&configuration::flag_group) {
+ if((getgid()!=gid) && setgid(gid))
+ throw konforka::exception(CODEPOINT,"failed to setgid()");
+ }
+ if(config.flags&configuration::flag_user) {
+ if((getuid()!=uid) && setuid(uid))
+ throw konforka::exception(CODEPOINT,"failed to setuid()");
+ }
+}
+
+static sitecing_fastcgi_pm* _process_manager = NULL;
+
+static void lethal_signal_handler(int signum) {
+ _process_manager->finishing=true;
+}
+
+int main(int argc,char **argv) {
+ const char* id = *argv;
+ const char* t;
+ while(t = index(id,'/')) {
+ id=t; id++;
+ }
+ openlog(id,LOG_PERROR|LOG_PID,LOG_USER);
+ try {
+ string config_file = "sitecing.conf";
+ while(true) {
+ static struct option opts[] = {
+ { "help", no_argument, 0, 'h' },
+ { "usage", no_argument, 0, 'h' },
+ { "version", no_argument, 0, 'V' },
+ { "license", no_argument, 0, 'L' },
+ { "config", required_argument, 0, 'f' },
+ { NULL, 0, 0, 0 }
+ };
+ int c = getopt_long(argc,argv,"f:hVL",opts,NULL);
+ if(c==-1)
+ break;
+ switch(c) {
+ case 'h':
+ cerr << PHEADER << endl
+ << PCOPY << endl << endl
+ << " -h, --help" << endl
+ << " --usage display this text" << endl
+ << " -V, --version display version number" << endl
+ << " -L, --license show license" << endl
+ << " -f filename, --config=filename" << endl
+ << " specify configuration file to use" << endl;
+ exit(0);
+ break;
+ case 'V':
+ cerr << VERSION << endl;
+ exit(0);
+ break;
+ case 'L':
+ extern const char *COPYING;
+ cerr << COPYING << endl;
+ exit(0);
+ break;
+ case 'f':
+ config_file = optarg;
+ break;
+ default:
+ cerr << "Huh??" << endl;
+ break;
+ }
+ }
+ sitecing_fastcgi_pm sfpm(config_file);
+ _process_manager = &sfpm;
+ signal(SIGINT,lethal_signal_handler);
+ signal(SIGABRT,lethal_signal_handler);
+ signal(SIGTERM,lethal_signal_handler);
+ sfpm.run();
+ }catch(exception& e) {
+ /* cerr << "Oops: " << e.what() << endl; */
+ syslog(LOG_ERR,"uncaught exception: %s",e.what());
+ }
+ closelog();
+}