X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=jcc.c;h=6661b34ec1ab8715bb173b535019efe223a4c923;hp=6e667b21831e60a3b64652788d1d88547ca4adc4;hb=292da21cea2a42b0896d667cff7201ef0ea2894e;hpb=c2bc5eb698dd6791c6c5edd499a5c814e0ecf28d diff --git a/jcc.c b/jcc.c index 6e667b21..6661b34e 100644 --- a/jcc.c +++ b/jcc.c @@ -1,4 +1,4 @@ -const char jcc_rcs[] = "$Id: jcc.c,v 1.361 2011/07/17 13:37:32 fabiankeil Exp $"; +const char jcc_rcs[] = "$Id: jcc.c,v 1.375 2011/12/10 17:26:11 fabiankeil Exp $"; /********************************************************************* * * File : $Source: /cvsroot/ijbswa/current/jcc.c,v $ @@ -208,31 +208,31 @@ static int received_hup_signal = 0; /* HTTP snipplets. */ static const char CSUCCEED[] = - "HTTP/1.0 200 Connection established\r\n" + "HTTP/1.1 200 Connection established\r\n" "Proxy-Agent: Privoxy/" VERSION "\r\n\r\n"; static const char CHEADER[] = - "HTTP/1.0 400 Invalid header received from client\r\n" + "HTTP/1.1 400 Invalid header received from client\r\n" "Proxy-Agent: Privoxy " VERSION "\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" "Invalid header received from client.\r\n"; static const char FTP_RESPONSE[] = - "HTTP/1.0 400 Invalid request received from client\r\n" + "HTTP/1.1 400 Invalid request received from client\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" "Invalid request. Privoxy doesn't support FTP.\r\n"; static const char GOPHER_RESPONSE[] = - "HTTP/1.0 400 Invalid request received from client\r\n" + "HTTP/1.1 400 Invalid request received from client\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" "Invalid request. Privoxy doesn't support gopher.\r\n"; /* XXX: should be a template */ static const char MISSING_DESTINATION_RESPONSE[] = - "HTTP/1.0 400 Bad request received from client\r\n" + "HTTP/1.1 400 Bad request received from client\r\n" "Proxy-Agent: Privoxy " VERSION "\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" @@ -240,7 +240,7 @@ static const char MISSING_DESTINATION_RESPONSE[] = /* XXX: should be a template */ static const char INVALID_SERVER_HEADERS_RESPONSE[] = - "HTTP/1.0 502 Server or forwarder response invalid\r\n" + "HTTP/1.1 502 Server or forwarder response invalid\r\n" "Proxy-Agent: Privoxy " VERSION "\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" @@ -248,21 +248,21 @@ static const char INVALID_SERVER_HEADERS_RESPONSE[] = /* XXX: should be a template */ static const char MESSED_UP_REQUEST_RESPONSE[] = - "HTTP/1.0 400 Malformed request after rewriting\r\n" + "HTTP/1.1 400 Malformed request after rewriting\r\n" "Proxy-Agent: Privoxy " VERSION "\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" "Bad request. Messed up with header filters.\r\n"; static const char TOO_MANY_CONNECTIONS_RESPONSE[] = - "HTTP/1.0 503 Too many open connections\r\n" + "HTTP/1.1 503 Too many open connections\r\n" "Proxy-Agent: Privoxy " VERSION "\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" "Maximum number of open connections reached.\r\n"; static const char CLIENT_CONNECTION_TIMEOUT_RESPONSE[] = - "HTTP/1.0 504 Connection timeout\r\n" + "HTTP/1.1 504 Connection timeout\r\n" "Proxy-Agent: Privoxy " VERSION "\r\n" "Content-Type: text/plain\r\n" "Connection: close\r\n\r\n" @@ -317,7 +317,7 @@ static const struct cruncher crunchers_light[] = { #if !defined(_WIN32) && !defined(__OS2__) && !defined(AMIGA) /********************************************************************* * - * Function : sig_handler + * Function : sig_handler * * Description : Signal handler for different signals. * Exit gracefully on TERM and INT @@ -327,7 +327,7 @@ static const struct cruncher crunchers_light[] = { * Parameters : * 1 : the_signal = the signal cause this function to call * - * Returns : - + * Returns : - * *********************************************************************/ static void sig_handler(int the_signal) @@ -350,10 +350,10 @@ static void sig_handler(int the_signal) #if defined(unix) received_hup_signal = 1; #endif - break; + break; default: - /* + /* * We shouldn't be here, unless we catch signals * in main() that we can't handle here! */ @@ -565,7 +565,7 @@ static jb_err get_server_headers(struct client_state *csp) log_error(LOG_LEVEL_HEADER, "Continue hack in da house."); continue_hack_in_da_house = 1; } - else if (*header == '\0') + else if (*header == '\0') { /* * If the header is empty, but the Continue hack @@ -723,7 +723,7 @@ static void send_crunch_response(const struct client_state *csp, struct http_res if (cgi_error_memory() != rsp) { free_http_response(rsp); - } + } return; } @@ -751,7 +751,7 @@ static int crunch_response_triggered(struct client_state *csp, const struct crun /* * If CGI request crunching is disabled, * check the CGI dispatcher out of order to - * prevent unintentional blocks or redirects. + * prevent unintentional blocks or redirects. */ if (!(csp->config->feature_flags & RUNTIME_FEATURE_CGI_CRUNCHING) && (NULL != (rsp = dispatch_cgi(csp)))) @@ -823,7 +823,7 @@ static void build_request_line(struct client_state *csp, const struct forward_sp * Downgrade http version from 1.1 to 1.0 * if +downgrade action applies. */ - if ( (csp->action->flags & ACTION_DOWNGRADE) + if ((csp->action->flags & ACTION_DOWNGRADE) && (!strcmpic(http->ver, "HTTP/1.1"))) { freez(http->ver); @@ -1230,10 +1230,6 @@ static char *get_request_line(struct client_state *csp) * Description : Read the client's request (more precisely the * client headers) and answer it if necessary. * - * Note that since we're not using select() we could get - * blocked here if a client connected, then didn't say - * anything! - * * Parameters : * 1 : csp = Current client state (buffers, headers, etc...) * @@ -1339,7 +1335,7 @@ static jb_err receive_client_request(struct client_state *csp) destroy_list(headers); return JB_ERR_PARSE; } - + if (add_to_iob(csp, buf, len)) { /* @@ -1397,7 +1393,7 @@ static jb_err receive_client_request(struct client_state *csp) get_url_actions(csp, http); } - /* + /* * Save a copy of the original request for logging */ http->ocmd = strdup(http->cmd); @@ -1693,16 +1689,16 @@ static void chat(struct client_state *csp) } #endif /* def FEATURE_CONNECTION_KEEP_ALIVE */ - hdr = list_to_text(csp->headers); - if (hdr == NULL) - { - /* FIXME Should handle error properly */ - log_error(LOG_LEVEL_FATAL, "Out of memory parsing client header"); - } - list_remove_all(csp->headers); - if (fwd->forward_host || (http->ssl == 0)) { + hdr = list_to_text(csp->headers); + if (hdr == NULL) + { + /* FIXME Should handle error properly */ + log_error(LOG_LEVEL_FATAL, "Out of memory parsing client header"); + } + list_remove_all(csp->headers); + /* * Write the client's (modified) header to the server * (along with anything else that may be in the buffer) @@ -1722,17 +1718,18 @@ static void chat(struct client_state *csp) freez(hdr); return; } + freez(hdr); } else { /* * We're running an SSL tunnel and we're not forwarding, - * so just send the "connect succeeded" message to the - * client, flush the rest, and get out of the way. + * so just ditch the client headers, send the "connect succeeded" + * message to the client, flush the rest, and get out of the way. */ + list_remove_all(csp->headers); if (write_socket(csp->cfd, CSUCCEED, strlen(CSUCCEED))) { - freez(hdr); return; } IOB_RESET(csp); @@ -1742,9 +1739,6 @@ static void chat(struct client_state *csp) csp->server_connection.request_sent = time(NULL); - /* we're finished with the client's header */ - freez(hdr); - maxfd = (csp->cfd > csp->server_connection.sfd) ? csp->cfd : csp->server_connection.sfd; @@ -2149,7 +2143,7 @@ static void chat(struct client_state *csp) hdr = list_to_text(csp->headers); if (hdr == NULL) { - /* + /* * Memory is too tight to even generate the header. * Send our static "Out-of-memory" page. */ @@ -2206,7 +2200,7 @@ static void chat(struct client_state *csp) { log_error(LOG_LEVEL_ERROR, "Out of memory while looking for end of server headers."); rsp = cgi_error_memory(); - send_crunch_response(csp, rsp); + send_crunch_response(csp, rsp); mark_server_socket_tainted(csp); return; } @@ -2258,18 +2252,19 @@ static void chat(struct client_state *csp) if ((csp->flags & CSP_FLAG_REUSED_CLIENT_CONNECTION)) { log_error(LOG_LEVEL_ERROR, - "Empty server or forwarder response received on socket %d. " + "No server or forwarder response received on socket %d. " "Closing client socket %d without sending data.", csp->server_connection.sfd, csp->cfd); + log_error(LOG_LEVEL_CLF, + "%s - - [%T] \"%s\" 502 0", csp->ip_addr_str, http->cmd); } else { log_error(LOG_LEVEL_ERROR, - "Empty server or forwarder response received on socket %d.", + "No server or forwarder response received on socket %d.", csp->server_connection.sfd); send_crunch_response(csp, error_response(csp, "no-server-data")); } - log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 502 0", csp->ip_addr_str, http->cmd); free_http_request(http); mark_server_socket_tainted(csp); return; @@ -2445,6 +2440,8 @@ static void chat(struct client_state *csp) *********************************************************************/ static void prepare_csp_for_next_request(struct client_state *csp) { + unsigned int toggled_on_flag_set = (0 != (csp->flags & CSP_FLAG_TOGGLED_ON)); + csp->content_type = 0; csp->content_length = 0; csp->expected_content_length = 0; @@ -2463,9 +2460,11 @@ static void prepare_csp_for_next_request(struct client_state *csp) csp->fwd = NULL; } /* XXX: Store per-connection flags someplace else. */ - csp->flags &= CSP_FLAG_TOGGLED_ON; - csp->flags |= CSP_FLAG_ACTIVE; - csp->flags |= CSP_FLAG_REUSED_CLIENT_CONNECTION; + csp->flags = (CSP_FLAG_ACTIVE | CSP_FLAG_REUSED_CLIENT_CONNECTION); + if (toggled_on_flag_set) + { + csp->flags |= CSP_FLAG_TOGGLED_ON; + } } #endif /* def FEATURE_CONNECTION_KEEP_ALIVE */ @@ -2512,11 +2511,13 @@ static void serve(struct client_state *csp) continue_chatting = (csp->config->feature_flags & RUNTIME_FEATURE_CONNECTION_KEEP_ALIVE) - && (((csp->flags & CSP_FLAG_SERVER_CONNECTION_KEEP_ALIVE) - && !(csp->flags & CSP_FLAG_SERVER_SOCKET_TAINTED)) - || (csp->flags & CSP_FLAG_CRUNCHED)) + && !(csp->flags & CSP_FLAG_SERVER_SOCKET_TAINTED) + && ((csp->flags & CSP_FLAG_SERVER_CONNECTION_KEEP_ALIVE) + || (csp->flags & CSP_FLAG_CRUNCHED)) && (csp->cfd != JB_INVALID_SOCKET) - && (csp->flags & CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE); + && ((csp->flags & CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE) + || (csp->config->feature_flags & + RUNTIME_FEATURE_CONNECTION_SHARING)); if (continue_chatting && !(csp->flags & CSP_FLAG_CRUNCHED)) { @@ -2543,22 +2544,24 @@ static void serve(struct client_state *csp) if (continue_chatting) { - unsigned int client_timeout; + unsigned int client_timeout = 1; /* XXX: Use something else here? */ - if (csp->server_connection.sfd != JB_INVALID_SOCKET) + if (0 != (csp->flags & CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE)) { - client_timeout = (unsigned)csp->server_connection.keep_alive_timeout - latency; - log_error(LOG_LEVEL_CONNECT, - "Waiting for the next client request on socket %d. " - "Keeping the server socket %d to %s open.", - csp->cfd, csp->server_connection.sfd, csp->server_connection.host); - } - else - { - client_timeout = 1; /* XXX: Use something else here? */ - log_error(LOG_LEVEL_CONNECT, - "Waiting for the next client request on socket %d. " - "No server socket to keep open.", csp->cfd); + if (csp->server_connection.sfd != JB_INVALID_SOCKET) + { + client_timeout = (unsigned)csp->server_connection.keep_alive_timeout - latency; + log_error(LOG_LEVEL_CONNECT, + "Waiting for the next client request on socket %d. " + "Keeping the server socket %d to %s open.", + csp->cfd, csp->server_connection.sfd, csp->server_connection.host); + } + else + { + log_error(LOG_LEVEL_CONNECT, + "Waiting for the next client request on socket %d. " + "No server socket to keep open.", csp->cfd); + } } if ((csp->flags & CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE) && data_is_available(csp->cfd, (int)client_timeout) @@ -2570,9 +2573,12 @@ static void serve(struct client_state *csp) } else { - log_error(LOG_LEVEL_CONNECT, - "No additional client request received in time on socket %d.", - csp->cfd); + if (0 != (csp->flags & CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE)) + { + log_error(LOG_LEVEL_CONNECT, + "No additional client request received in time on socket %d.", + csp->cfd); + } #ifdef FEATURE_CONNECTION_SHARING if ((csp->config->feature_flags & RUNTIME_FEATURE_CONNECTION_SHARING) && (socket_is_still_alive(csp->server_connection.sfd))) @@ -2841,6 +2847,7 @@ static void initialize_mutexes(void) #ifndef HAVE_RANDOM privoxy_mutex_init(&rand_mutex); #endif /* ndef HAVE_RANDOM */ + #endif /* def MUTEX_LOCKS_AVAILABLE */ } @@ -2915,7 +2922,7 @@ int main(int argc, char **argv) const char *pName = argv[argc_pos] + 9; if (*pName == ':') pName++; - exit( (install_service(pName)) ? 0 : 1 ); + exit((install_service(pName)) ? 0 : 1); } else if (strncmp(argv[argc_pos], "--uninstall", 11) == 0) { @@ -2924,7 +2931,7 @@ int main(int argc, char **argv) pName++; exit((uninstall_service(pName)) ? 0 : 1); } - else if (strcmp(argv[argc_pos], "--service" ) == 0) + else if (strcmp(argv[argc_pos], "--service") == 0) { bRunAsService = TRUE; w32_set_service_cwd(); @@ -2949,19 +2956,19 @@ int main(int argc, char **argv) #if defined(unix) - else if (strcmp(argv[argc_pos], "--no-daemon" ) == 0) + else if (strcmp(argv[argc_pos], "--no-daemon") == 0) { set_debug_level(LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO); daemon_mode = 0; } - else if (strcmp(argv[argc_pos], "--pidfile" ) == 0) + else if (strcmp(argv[argc_pos], "--pidfile") == 0) { if (++argc_pos == argc) usage(argv[0]); pidfile = strdup(argv[argc_pos]); } - else if (strcmp(argv[argc_pos], "--user" ) == 0) + else if (strcmp(argv[argc_pos], "--user") == 0) { char *user_arg; char *group_name; @@ -2998,13 +3005,13 @@ int main(int argc, char **argv) freez(user_arg); } - else if (strcmp(argv[argc_pos], "--pre-chroot-nslookup" ) == 0) + else if (strcmp(argv[argc_pos], "--pre-chroot-nslookup") == 0) { if (++argc_pos == argc) usage(argv[0]); pre_chroot_nslookup_to_load_resolver = strdup(argv[argc_pos]); } - else if (strcmp(argv[argc_pos], "--chroot" ) == 0) + else if (strcmp(argv[argc_pos], "--chroot") == 0) { do_chroot = 1; } @@ -3031,17 +3038,17 @@ int main(int argc, char **argv) show_version(Argv[0]); #if defined(unix) - if ( *configfile != '/' ) + if (*configfile != '/') { char cwd[BUFFER_SIZE]; char *abs_file; - size_t abs_file_size; + size_t abs_file_size; /* make config-filename absolute here */ if (NULL == getcwd(cwd, sizeof(cwd))) { perror("failed to get current working directory"); - exit( 1 ); + exit(1); } /* XXX: why + 5? */ @@ -3052,10 +3059,10 @@ int main(int argc, char **argv) NULL == (abs_file = malloc(abs_file_size))) { perror("malloc failed"); - exit( 1 ); + exit(1); } strlcpy(abs_file, basedir, abs_file_size); - strlcat(abs_file, "/", abs_file_size ); + strlcat(abs_file, "/", abs_file_size); strlcat(abs_file, configfile, abs_file_size); configfile = abs_file; } @@ -3089,12 +3096,11 @@ int main(int argc, char **argv) #if !defined(_WIN32) && !defined(__OS2__) && !defined(AMIGA) { int idx; - const int catched_signals[] = { SIGTERM, SIGINT, SIGHUP, 0 }; - const int ignored_signals[] = { SIGPIPE, 0 }; + const int catched_signals[] = { SIGTERM, SIGINT, SIGHUP }; - for (idx = 0; catched_signals[idx] != 0; idx++) + for (idx = 0; idx < SZ(catched_signals); idx++) { -#ifdef sun /* FIXME: Is it safe to check for HAVE_SIGSET instead? */ +#ifdef sun /* FIXME: Is it safe to check for HAVE_SIGSET instead? */ if (sigset(catched_signals[idx], sig_handler) == SIG_ERR) #else if (signal(catched_signals[idx], sig_handler) == SIG_ERR) @@ -3104,12 +3110,9 @@ int main(int argc, char **argv) } } - for (idx = 0; ignored_signals[idx] != 0; idx++) + if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { - if (signal(ignored_signals[idx], SIG_IGN) == SIG_ERR) - { - log_error(LOG_LEVEL_FATAL, "Can't set ignore-handler for signal %d: %E", ignored_signals[idx]); - } + log_error(LOG_LEVEL_FATAL, "Can't set ignore-handler for SIGPIPE: %E"); } } @@ -3139,12 +3142,12 @@ int main(int argc, char **argv) int fd; pid_t pid = fork(); - if ( pid < 0 ) /* error */ + if (pid < 0) /* error */ { perror("fork"); - exit( 3 ); + exit(3); } - else if ( pid != 0 ) /* parent */ + else if (pid != 0) /* parent */ { int status; pid_t wpid; @@ -3152,13 +3155,13 @@ int main(int argc, char **argv) * must check for errors * child died due to missing files aso */ - sleep( 1 ); - wpid = waitpid( pid, &status, WNOHANG ); - if ( wpid != 0 ) + sleep(1); + wpid = waitpid(pid, &status, WNOHANG); + if (wpid != 0) { - exit( 1 ); + exit(1); } - exit( 0 ); + exit(0); } /* child */ @@ -3264,7 +3267,7 @@ int main(int argc, char **argv) if (putenv(putenv_dummy) != 0) { log_error(LOG_LEVEL_FATAL, "Cannot putenv(): HOME"); - } + } snprintf(putenv_dummy, sizeof(putenv_dummy), "USER=%s", pw->pw_name); if (putenv(putenv_dummy) != 0) @@ -3285,7 +3288,7 @@ int main(int argc, char **argv) */ if (bRunAsService) { - /* Yup, so now we must attempt to establish a connection + /* Yup, so now we must attempt to establish a connection * with the service dispatcher. This will only work if this * process was launched by the service control manager to * actually run as a service. If this isn't the case, i've @@ -3681,7 +3684,7 @@ static void listen_loop(void) #if defined(AMIGA) && !defined(SELECTED_ONE_OPTION) #define SELECTED_ONE_OPTION csp->cfd = ReleaseSocket(csp->cfd, -1); - + #ifdef __amigaos4__ child_id = (int)CreateNewProcTags(NP_Entry, (ULONG)server_thread, NP_Output, Output(), @@ -3722,7 +3725,7 @@ static void listen_loop(void) serve(csp); - /* + /* * If we've been toggled or we've blocked the request, tell Mom */ @@ -3733,7 +3736,7 @@ static void listen_loop(void) } #endif /* def FEATURE_TOGGLE */ -#ifdef FEATURE_STATISTICS +#ifdef FEATURE_STATISTICS if (csp->flags & CSP_FLAG_REJECTED) { rc |= RC_FLAG_BLOCKED; @@ -3751,9 +3754,9 @@ static void listen_loop(void) int child_status; #if !defined(_WIN32) && !defined(__CYGWIN__) - wait( &child_status ); + wait(&child_status); - /* + /* * Evaluate child's return code: If the child has * - been toggled, toggle ourselves * - blocked its request, bump up the stats counter @@ -3772,7 +3775,7 @@ static void listen_loop(void) { urls_rejected++; } -#endif /* def FEATURE_STATISTICS */ +#endif /* def FEATURE_STATISTICS */ #endif /* !defined(_WIN32) && defined(__CYGWIN__) */ close_socket(csp->cfd);