--- parser3/src/targets/cgi/parser3.C 2002/01/31 10:20:21 1.151 +++ parser3/src/targets/cgi/parser3.C 2020/10/14 00:13:01 1.301 @@ -1,96 +1,113 @@ /** @file Parser: scripting and CGI main. - Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com) - Author: Alexander Petrosyan (http://paf.design.ru) - - $Id: parser3.C,v 1.151 2002/01/31 10:20:21 paf Exp $ + Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ -#include "pa_config_includes.h" +volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.301 2020/10/14 00:13:01 moko Exp $"; -#if _MSC_VER -# include -# include -#else -# include "pa_config_paths.h" -#endif +#include "pa_config_includes.h" #include "pa_sapi.h" #include "classes.h" #include "pa_common.h" #include "pa_request.h" -#include "pa_socks.h" #include "pa_version.h" -#include "pool_storage.h" +#include "pa_vconsole.h" +#include "pa_sapi_info.h" -#ifdef WIN32 -# include +#ifdef _MSC_VER +#include +#include +#include #endif -//#define DEBUG_POOL_MALLOC +// defines -// consts +// comment remove me after debugging +//#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log" -extern const char *main_RCSIds[]; -#ifdef USE_SMTP -extern const char *smtp_RCSIds[]; -#endif -extern const char *gd_RCSIds[]; -extern const char *classes_RCSIds[]; -extern const char *types_RCSIds[]; -extern const char *parser3_RCSIds[]; -const char **RCSIds[]={ - main_RCSIds, -#ifdef USE_SMTP - smtp_RCSIds, -#endif - gd_RCSIds, - classes_RCSIds, - types_RCSIds, - parser3_RCSIds, - 0 -}; +#if defined(_MSC_VER) && !defined(_DEBUG) +# define PA_SUPPRESS_SYSTEM_EXCEPTION +#endif -/// IIS refuses to read bigger chunks -const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M +// consts -const char *argv0; -Pool_storage pool_storage; -Pool pool(&pool_storage); // global pool [dont describe to doxygen: it confuses it with param names] -bool cgi; ///< we were started as CGI? +#define REDIRECT_PREFIX "REDIRECT_" +#define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG" +#define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG" + +static const char* config_filespec_cstr=0; // -f option +static const char* httpd_host_port=0; // -p option +static bool mail_received=false; // -m option? [asked to parse incoming message to $mail:received] + +static int args_skip=1; +static char** argv_all = NULL; + +static bool cgi; ///< we were started as CGI? + +// for signal handlers +Request *request=0; +bool execution_canceled=false; +// for die error logging +Request_info request_info; // SAPI -static void log(const char *fmt, va_list args) { - bool opened; +static void log(const char* fmt, va_list args) { + bool opened=false; FILE *f=0; - if(argv0) { - // beside by binary + const char* log_by_env=getenv(PARSER_LOG_ENV_NAME); + if(!log_by_env) + log_by_env=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME); + if(log_by_env) { + f=fopen(log_by_env, "at"); + opened=f!=0; + } +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + f=fopen(PA_DEBUG_CGI_ENTRY_EXIT, "at"); + opened=f!=0; +#endif + + if(!opened && config_filespec_cstr) { + char beside_config_path[MAX_STRING]; + strncpy(beside_config_path, config_filespec_cstr, MAX_STRING-1); beside_config_path[MAX_STRING-1]=0; + if(!(rsplit(beside_config_path, '/') || rsplit(beside_config_path, '\\'))) { // strip filename + // no path, just filename + beside_config_path[0]='.'; beside_config_path[1]=0; + } + char file_spec[MAX_STRING]; - strncpy(file_spec, argv0, MAX_STRING-1); file_spec[MAX_STRING-1]=0; // filespec of my binary - rsplit(file_spec, '/'); rsplit(file_spec, '\\');// strip filename - strcat(file_spec, "/parser3.log"); + snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path); f=fopen(file_spec, "at"); + opened=f!=0; } - opened=f!=0; + // fallback to stderr if(!opened) f=stderr; + // use no memory [so that we could log out-of-memory error] + setbuf(f, 0); // stderr stream is unbuffered by default, but still... + // prefix time_t t=time(0); - const char *stamp=ctime(&t); - fprintf(f, "[%.*s] ", strlen(stamp)-1, stamp); + if(const char* stamp=ctime(&t)) { // never saw that + if(size_t len=strlen(stamp)) // saw once stamp being ="" + fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)getpid() ); + } // message - char buf[MAX_STRING]; - size_t size=vsnprintf(buf, MAX_STRING, fmt, args); - remove_crlf(buf, buf+size); - + char buf[MAX_LOG_STRING]; + size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args); + size=remove_crlf(buf, buf+size); fwrite(buf, size, 1, f); - // newline - fprintf(f, "\n"); + + if(request_info.method) { + fprintf(f, " [uri=%s, method=%s, cl=%lu]\n", request_info.uri ? request_info.uri : "", request_info.method, request_info.content_length); + } else + fputs(" [no request info]\n", f); if(opened) fclose(f); @@ -98,327 +115,494 @@ static void log(const char *fmt, va_list fflush(f); } +#ifdef PA_DEBUG_CGI_ENTRY_EXIT +static void log(const char* fmt, ...) { + va_list args; + va_start(args,fmt); + log(fmt, args); + va_end(args); +} +#endif + // appends to parser3.log located beside my binary if openable, to stderr otherwize -void SAPI::log(Pool& , const char *fmt, ...) { - va_list args; +void SAPI::log(SAPI_Info&, const char* fmt, ...) { + va_list args; va_start(args,fmt); ::log(fmt, args); va_end(args); } -void SAPI::die(const char *fmt, ...) { -#ifdef DEBUG_POOL_MALLOC - extern void log_pool_stats(Pool& pool); - log_pool_stats(pool); -#endif +void SAPI::die(const char* fmt, ...) { + va_list args; - va_list args; + // logging first, first vsnprintf va_start(args,fmt); - // log - - // logging is more important than user - // she can cancel download, we'd get SIG_PIPE, - // nothing would be logged then ::log(fmt, args); + va_end(args); - // inform user + // inform user, second vsnprintf + va_start(args, fmt); + char message[MAX_STRING]; + vsnprintf(message, MAX_STRING, fmt, args); - char body[MAX_STRING]; - int content_length=vsnprintf(body, MAX_STRING, fmt, args); + SAPI::send_error(*sapiInfo, message); + exit(1); +// va_end(args); +} - va_end(args); +char* SAPI::Env::get(SAPI_Info& info, const char* name) { + return info.get_env(name); +} - // prepare header - // let's be honest, that's bad we couldn't produce valid output - SAPI::add_header_attribute(pool, "status", "500"); - SAPI::add_header_attribute(pool, "content-type", "text/plain"); - char content_length_cstr[MAX_NUMBER]; - snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length); - SAPI::add_header_attribute(pool, "content-length", content_length_cstr); +const char* const *SAPI::Env::get(SAPI_Info& info) { + return info.get_env(); +} - // send header - SAPI::send_header(pool); +size_t SAPI::read_post(SAPI_Info& info, char *buf, size_t max_bytes) { + return info.read_post(buf, max_bytes); +} - // body - SAPI::send_body(pool, body, content_length); +void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) { + info.add_header_attribute(dont_store_key, dont_store_value); +} - exit(1); +void SAPI::send_header(SAPI_Info& info) { + info.send_header(); } -const char *SAPI::get_env(Pool& , const char *name) { - return getenv(name); +size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) { + return info.send_body(buf, size); } -size_t SAPI::read_post(Pool& , char *buf, size_t max_bytes) { - size_t read_size=0; - do { - int chunk_size=read(fileno(stdin), - buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size)); - if(chunk_size<=0) - break; - read_size+=chunk_size; - } while(read_sizemain_class.get_element(sigpipe_name); + if(sigpipe && sigpipe->as_bool()) + log_signal(SIGPIPE_NAME); + + execution_canceled=true; + if(request) + request->set_skip(Request::SKIP_INTERRUPTED); +} +#endif + +#ifdef WIN32 +const char* maybe_reconstruct_IIS_status_in_qs(const char* original) { + // 404;http://servername/page[?param=value...] + // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser + // and can consider that as an indication that this is IIS way to report errors + + if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){ + size_t original_len=strlen(original); + char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1]; + char* cur=reconstructed; + memcpy(cur, "IIS-STATUS=", 11); cur+=11; + memcpy(cur, original, 3); cur+=3; + *cur++='&'; + + const char* qmark_at=strchr(original, '?'); + memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13; + { + size_t value_len=(qmark_at ? qmark_at-original : original_len)-4; + memcpy(cur, original+4, value_len); cur+=value_len; + } + + if(qmark_at) { + *cur++='&'; + strcpy(cur, qmark_at+1/*skip ? itself*/); + } else + *cur=0; + + return reconstructed; + } + + return original; +} + +#define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s) +#else +#define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s +#endif + + +class RequestController { +public: + RequestController(Request* r){ + ::request=r; + } + ~RequestController(){ + ::request=0; + } +}; - // header | body delimiter - puts(""); +static bool locate_config(){ + if(!config_filespec_cstr) { + config_filespec_cstr=getenv(PARSER_CONFIG_ENV_NAME); + if(!config_filespec_cstr) + config_filespec_cstr=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME); + if(!config_filespec_cstr){ + // beside by binary + char beside_binary_path[MAX_STRING]; + strncpy(beside_binary_path, argv_all[0], MAX_STRING-1); beside_binary_path[MAX_STRING-1]=0; // filespec of my binary + if(!(rsplit(beside_binary_path, '/') || rsplit(beside_binary_path, '\\'))) { // strip filename + // no path, just filename + // @todo full path, not ./! + beside_binary_path[0]='.'; beside_binary_path[1]=0; + } + char config_filespec_buf[MAX_STRING]; + snprintf(config_filespec_buf, MAX_STRING, "%s/%s", beside_binary_path, AUTO_FILE_NAME); + config_filespec_cstr=pa_strdup(config_filespec_buf); + return entry_exists(config_filespec_cstr); + } } + return true; } -void SAPI::send_body(Pool& , const void *buf, size_t size) { - stdout_write(buf, size); +static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection, const char* filespec_to_process){ + connection.read_header(); + info.populate_env(); + + // connection request info, still global for correct log() reporting + memset(&request_info, 0, sizeof(request_info)); + + char document_root_buf[MAX_STRING]; + full_file_spec("", document_root_buf, sizeof(document_root_buf)); + request_info.document_root = document_root_buf; + request_info.path_translated = filespec_to_process; + request_info.method = connection.method(); + request_info.query_string = connection.query(); + request_info.uri = request_info.strip_absolute_uri(connection.uri()); + request_info.content_type = connection.content_type(); + request_info.content_length = connection.content_length(); + request_info.cookie = info.get_env("HTTP_COOKIE"); + request_info.mail_received = false; + request_info.argv = argv_all + args_skip; + + // prepare to process request + Request request(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT)); + { + // initing ::request ptr for signal handlers + RequestController rc(&request); + bool fail_on_config_read_problem=locate_config(); + // process the request + request.core(config_filespec_cstr, fail_on_config_read_problem, strcasecmp(request_info.method, "HEAD")==0); + // clearing ::request in RequestController desctructor to prevent signal handlers from accessing invalid memory + } } -// +static void httpd_mode(const char* filespec_to_process){ + int sock = HTTPD_Server::bind(httpd_host_port); -char *full_file_spec(char *file_name) { - if(file_name && !strchr(file_name, '/')) { - static char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING); - static char buf[MAX_STRING]; - snprintf(buf, MAX_STRING, "%s/%s", cwd, file_name); - return buf; + while(1){ + HTTPD_Connection *connection = HTTPD_Server::accept(sock, 5); + if(!connection) + continue; + + SAPI_Info_HTTPD info(*connection); + + try { // connection try + connection_handler(info, *connection, filespec_to_process); + } catch(const Exception& e) { // exception in connection handling or unhandled exception + SAPI::log(info, "%s", e.comment()); + SAPI::send_error(info, e.comment(), info.exception_http_status(e.type())); + } + connection->close(); } - return file_name; } -/** -main workhorse +/** main workhorse */ - @todo - IIS: remove trailing default-document[index.html] from $request.uri. - to do that we need to consult metabase, - wich is tested but seems slow. - IIS5 todo find out proper 'illegal call' check -*/ -void real_parser_handler( - const char *filespec_to_process, - const char *request_method, bool header_only) { - // init socks - init_socks(pool); - - // init global classes - init_methoded_array(pool); - // init global variables - pa_globals_init(pool); - - if(!filespec_to_process) +static void real_parser_handler(const char* filespec_to_process) { + // init libraries + pa_globals_init(); + + if(httpd_host_port){ + httpd_mode(filespec_to_process); + } + + const char* request_method=getenv("REQUEST_METHOD"); + + if(!filespec_to_process || !*filespec_to_process) SAPI::die("Parser/%s", PARSER_VERSION); - // Request info - Request::Info request_info; - if(cgi) { - if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT")) - request_info.document_root=env_document_root; - else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) { - // IIS - size_t len=strlen(filespec_to_process)-strlen(path_info); - char *buf=(char *)pool.malloc(len+1); - memcpy(buf, filespec_to_process, len); buf[len]=0; - request_info.document_root=buf; - } else - throw Exception(0, 0, - 0, - "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)"); - } else { - static char buf[MAX_STRING]; - strncpy(buf, filespec_to_process, MAX_STRING-1); buf[MAX_STRING-1]=0; - if(rsplit(buf, '/') || rsplit(buf, '\\')) // strip filename - request_info.document_root=buf; - else - request_info.document_root=""; - } - request_info.path_translated=filespec_to_process; - request_info.method=request_method ? request_method : "GET"; - const char *query_string=SAPI::get_env(pool, "QUERY_STRING"); - request_info.query_string=query_string; + char document_root_buf[MAX_STRING]; + + // global request info + request_info.path_translated = filespec_to_process; + request_info.method = request_method ? request_method : "GET"; + request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING")); + if(cgi) { - if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI")) - request_info.uri=env_request_uri; - else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) - if(query_string) { - char *reconstructed_uri=(char *)pool.malloc( - strlen(path_info)+1/*'?'*/+ - strlen(query_string)+1/*0*/); + // obligatory + const char* path_info=getenv("PATH_INFO"); + if(!path_info) + SAPI::die("CGI: illegal call (missing PATH_INFO)"); + + request_info.document_root = getenv("DOCUMENT_ROOT"); + if(!request_info.document_root) { + // IIS or fcgiwrap minimalistic setup + ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info); + if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0) + SAPI::die("CGI: illegal call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)"); + + char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/]; + memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0; + request_info.document_root = document_root; + } + + request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI")); + if(request_info.uri) { // apache & others stuck to standards + // another obligatory + const char* script_name = getenv("SCRIPT_NAME"); + if(!script_name) + SAPI::die("CGI: illegal call (missing SCRIPT_NAME)"); + /* + http://parser3/env.html?123 =OK + $request:uri=/env.html?123 + REQUEST_URI='/env.html?123' + SCRIPT_NAME='/cgi-bin/parser3' + PATH_INFO='/env.html' + + http://parser3/cgi-bin/parser3/env.html?123 =ERROR + $request:uri=/cgi-bin/parser3/env.html?123 + REQUEST_URI='/cgi-bin/parser3/env.html?123' + SCRIPT_NAME='/cgi-bin/parser3' + PATH_INFO='/env.html' + */ + size_t script_name_len = strlen(script_name); + size_t uri_len = strlen(request_info.uri); + if(strncmp(request_info.uri, script_name, script_name_len)==0 && script_name_len != uri_len) // under IIS they are the same + SAPI::die("CGI: illegal call (1)"); + } else { // fcgiwrap minimalistic setup + + if(request_info.query_string && *request_info.query_string) { + char* reconstructed_uri = new(PointerFreeGC) char[strlen(path_info) + 1/*'?'*/+ strlen(request_info.query_string) + 1/*0*/]; strcpy(reconstructed_uri, path_info); strcat(reconstructed_uri, "?"); - strcat(reconstructed_uri, query_string); - request_info.uri=reconstructed_uri; + strcat(reconstructed_uri, request_info.query_string); + request_info.uri = reconstructed_uri; } else - request_info.uri=path_info; - else - throw Exception(0, 0, - 0, - "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)"); - -#ifndef WIN32 - // they've changed this under IIS5. - if(const char *script_name=SAPI::get_env(pool, "SCRIPT_NAME")) { - size_t script_name_len=strlen(script_name); - size_t uri_len=strlen(request_info.uri); - if(strncmp(request_info.uri,script_name, script_name_len)==0 && - script_name_len != uri_len) // under IIS they are the same - SAPI::die("CGI: illegal call"); - } -#endif - } else - request_info.uri=0; - - request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE"); - const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH"); - request_info.content_length=(content_length?atoi(content_length):0); - request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE"); - request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT"); - - // prepare to process request - Request request(pool, - request_info, -#ifdef _DEBUG - String::UL_HTML|String::UL_OPTIMIZE_BIT -#else - cgi ? String::UL_HTML|String::UL_OPTIMIZE_BIT : String::UL_AS_IS -#endif - , - true /* status_allowed */); - - // some root-controlled location -#ifdef PARSER_ROOT_CONFIG_DIR - const char *root_config_filespec=PARSER_ROOT_CONFIG_DIR "/" CONFIG_FILE_NAME; -#else -# ifdef WIN32 - // c:\windows - char root_config_path[MAX_STRING]; - GetWindowsDirectory(root_config_path, MAX_STRING); - - char root_config_filespec[MAX_STRING]; - snprintf(root_config_filespec, MAX_STRING, - "%s/%s", - root_config_path, CONFIG_FILE_NAME); -# else -#error must be compiled either configure/make or MSVC++ -# endif -#endif - - // beside by binary - // @todo full path, not ./! - static char site_config_path[MAX_STRING]; - strncpy(site_config_path, argv0, MAX_STRING-1); site_config_path[MAX_STRING-1]=0; // filespec of my binary - if(!( - rsplit(site_config_path, '/') || - rsplit(site_config_path, '\\'))) { // strip filename - // no path, just filename - site_config_path[0]='.'; site_config_path[1]=0; + request_info.uri = path_info; + } + } else{ + full_file_spec("", document_root_buf, sizeof(document_root_buf)); + request_info.document_root = document_root_buf; + request_info.uri = ""; } - char site_config_filespec[MAX_STRING]; - snprintf(site_config_filespec, MAX_STRING, - "%s/%s", - site_config_path, CONFIG_FILE_NAME); - - // process the request - request.core( - root_config_filespec, false, - site_config_filespec, false, - header_only); - - // - done_socks(); - -#ifdef DEBUG_POOL_MALLOC - extern void log_pool_stats(Pool& pool); - log_pool_stats(pool); + request_info.content_type = getenv("CONTENT_TYPE"); + request_info.content_length = pa_atoui(getenv("CONTENT_LENGTH"), 10); + request_info.cookie = getenv("HTTP_COOKIE"); + request_info.mail_received = mail_received; + + request_info.argv = argv_all + args_skip; + + if(execution_canceled) + SAPI::die("Execution canceled"); + +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s, cookies=%s, cl=%u", + request_info.method, + request_info.uri, + request_info.query_string, + request_info.document_root, + request_info.path_translated, + request_info.cookie, + request_info.content_length); #endif + + // prepare to process request + Request request(*sapiInfo, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS); + { + // initing ::request ptr for signal handlers + RequestController rc(&request); + bool fail_on_config_read_problem=locate_config(); + // process the request + request.core(config_filespec_cstr, fail_on_config_read_problem, strcasecmp(request_info.method, "HEAD")==0); + // clearing ::request in RequestController desctructor to prevent signal handlers from accessing invalid memory + } + + // finalize libraries + pa_globals_done(); +} + +#ifdef PA_SUPPRESS_SYSTEM_EXCEPTION +static const Exception call_real_parser_handler__do_PEH_return_it(const char* filespec_to_process) { + try { + real_parser_handler(filespec_to_process); + } catch(const Exception& e) { + return e; + } + + return Exception(); } -void call_real_parser_handler__do_SEH( - const char *filespec_to_process, - const char *request_method, bool header_only) { -#if _MSC_VER && !defined(_DEBUG) +static void call_real_parser_handler__supress_system_exception(const char* filespec_to_process) { + Exception parser_exception; LPEXCEPTION_POINTERS system_exception=0; + __try { -#endif - real_parser_handler( - filespec_to_process, - request_method, header_only); - -#if _MSC_VER && !defined(_DEBUG) - } __except ( - (system_exception=GetExceptionInformation()), - EXCEPTION_EXECUTE_HANDLER) { - + parser_exception=call_real_parser_handler__do_PEH_return_it(filespec_to_process); + } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) { if(system_exception) if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord) - throw Exception(0, 0, - 0, - "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); + throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); else - throw Exception(0, 0, 0, "Exception "); - else - throw Exception(0, 0, 0, "Exception "); + throw Exception("system", 0, ""); + else + throw Exception("system", 0, ""); } -#endif -} -#if _MSC_VER -int failed_new(size_t size) { - SAPI::die("out of memory in 'new', failed to allocated %u bytes", size); - return 0; // not reached + if(parser_exception) + throw Exception(parser_exception); } + +#define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception +#else +#define REAL_PARSER_HANDLER real_parser_handler #endif -#ifdef HAVE_SET_NEW_HANDLER -void failed_new() { - SAPI::die("out of memory in 'new'"); +static void usage(const char* program) { + printf( + "Parser/%s\n" + "Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)\n" + "Author: Alexandr Petrosian (http://paf.design.ru)\n" + "\n" + "Usage: %s [options] file\n" + "Options are:\n" +#ifdef WITH_MAILRECEIVE + " -m Parse mail, put received letter to $mail:received\n" +#endif + " -f config_file Use this config file (/path/to/auto.p)\n" + " -p [host:]port Start web server on this port\n" + " -h Display usage information (this message)\n", + PARSER_VERSION, + program); + exit(EINVAL); } -#endif + int main(int argc, char *argv[]) { -// _asm int 3; - argv0=argv[0]; +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("main: entry"); +#endif + argv_all=argv; umask(2); // were we started as CGI? - cgi= - getenv("SERVER_SOFTWARE") || - getenv("SERVER_NAME") || - getenv("GATEWAY_INTERFACE") || - getenv("REQUEST_METHOD"); - - if(!cgi) { - if(argc<2) { - printf( - "Parser/%s Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)\n" - "Author: Alexander Petrosyan (http://paf.design.ru)\n" - "\n" - "Usage: %s \n", - PARSER_VERSION, - argv0?argv0:"parser3"); - return 1; + cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION"); + sapiInfo = cgi ? new SAPI_Info_CGI() : new SAPI_Info(); + +#ifdef SIGUSR1 + if(signal(SIGUSR1, SIGUSR1_handler)==SIG_ERR) + SAPI::die("Can not set handler for SIGUSR1"); +#endif +#ifdef SIGPIPE + if(signal(SIGPIPE, SIGPIPE_handler)==SIG_ERR) + SAPI::die("Can not set handler for SIGPIPE"); +#endif + + char *raw_filespec_to_process = NULL; + if(cgi) { + raw_filespec_to_process=getenv("PATH_TRANSLATED"); + if(raw_filespec_to_process && !*raw_filespec_to_process) + raw_filespec_to_process=0; + } else { + int optind=1; + while(optind < argc){ + char *carg = argv[optind]; + if(carg[0] != '-') + break; + + for(size_t k = 1; k < strlen(carg); k++){ + char c = carg[k]; + switch (c) { + case 'h': + usage(argv[0]); + break; + case 'f': + if(optind < argc - 1){ + optind++; + config_filespec_cstr=argv[optind]; + } + break; + case 'p': + if(optind < argc - 1){ + optind++; + httpd_host_port=argv[optind]; + } + break; +#ifdef WITH_MAILRECEIVE + case 'm': + mail_received=true; + break; +#endif + default: + fprintf(stderr, "%s: invalid option '%c'\n", argv[0], c); + usage(argv[0]); + break; + } + } + optind++; + } + + if (optind > argc - 1) { + if(!httpd_host_port) { + fprintf(stderr, "%s: file not specified\n", argv[0]); + usage(argv[0]); + } + } else { + raw_filespec_to_process=argv[optind]; + } + args_skip=optind; + + if (httpd_host_port && mail_received) { + fprintf(stderr, "%s: -p and -m options should not be used together\n", argv[0]); + usage(argv[0]); } } -#ifdef WIN32 +#ifdef _MSC_VER setmode(fileno(stdin), _O_BINARY); setmode(fileno(stdout), _O_BINARY); setmode(fileno(stderr), _O_BINARY); #endif -#if _MSC_VER - _set_new_handler(failed_new); - -#ifdef _DEBUG +#if defined(_MSC_VER) && defined(_DEBUG) // Get current flag int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG ); @@ -427,46 +611,22 @@ int main(int argc, char *argv[]) { // Set flag to the new value _CrtSetDbgFlag( tmpFlag ); -// _CrtSetBreakAlloc(471); + _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE ); + _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR ); #endif -#endif - -#ifdef HAVE_SET_NEW_HANDLER - std::set_new_handler(failed_new); -#endif - - char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; -#ifdef WIN32 - back_slashes_to_slashes(filespec_to_process); -#endif - filespec_to_process=full_file_spec(filespec_to_process); - - const char *request_method=getenv("REQUEST_METHOD"); - bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; + char filespec_to_process[MAX_STRING]; + full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process)); try { // global try - call_real_parser_handler__do_SEH( - filespec_to_process, - request_method, header_only); - } catch(const Exception& e) { // global problem - // don't allocate anything on pool here: - // possible pool' exception not catch-ed now - // and there could be out-of-memory exception - - SAPI::die("exception in request exception handler: %s", e.comment()); -#ifndef _DEBUG - } catch(...) { - SAPI::die(""); -#endif + REAL_PARSER_HANDLER(filespec_to_process); + } catch(const Exception& e) { // exception in unhandled exception + SAPI::die("%s", e.comment()); } - -#ifndef WIN32 - // - if(!cgi) - SAPI::send_body(pool, "\n", 1); +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("main: successful return"); #endif - return 0; + return sapiInfo->http_response_code < 100 ? sapiInfo->http_response_code : 0; }