--- parser3/src/targets/cgi/parser3.C 2002/08/14 11:37:14 1.194 +++ parser3/src/targets/cgi/parser3.C 2020/12/15 20:57:56 1.331 @@ -1,83 +1,89 @@ /** @file Parser: scripting and CGI main. - Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) */ -static const char* IDENT_PARSER3_C="$Date: 2002/08/14 11:37:14 $"; +volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.331 2020/12/15 20:57:56 moko Exp $"; #include "pa_config_includes.h" -#if _MSC_VER -# include -# include -#endif - #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 _MSC_VER +#include +#include +#include + +extern "C" HANDLE WINAPI GC_CreateThread(LPSECURITY_ATTRIBUTES, DWORD, LPTHREAD_START_ROUTINE, LPVOID, DWORD, LPDWORD); -#ifdef WIN32 -# include -# include "getopt.h" #else -# include + +extern "C" int GC_pthread_create(pthread_t *, const pthread_attr_t *, void *(*)(void *), void * /* arg */); + #endif -#include "fixopt.h" +// defines -//#define DEBUG_POOL_MALLOC -//#define DEBUG_STRING_APPENDS_VS_EXPANDS -//#define DEBUG_MAILRECEIVE "test.eml" +// comment remove me after debugging +//#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log" -#ifdef DEBUG_STRING_APPENDS_VS_EXPANDS -extern ulong - string_piece_appends, - wcontext_result_size, - total_alloc_size, - string_string_shortcut_economy; +#if defined(_MSC_VER) && !defined(_DEBUG) +# define PA_SUPPRESS_SYSTEM_EXCEPTION #endif // consts #define REDIRECT_PREFIX "REDIRECT_" #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG" +#define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG" -/// IIS refuses to read bigger chunks -const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M - -static const char *argv0; -static const char *config_filespec_cstr=0; -static bool fail_on_config_read_problem=true; - -static Pool *pool; // global pool [dont describe to doxygen: it confuses it with param names] -static bool cgi; ///< we were started as CGI? -static bool mail_received=false; ///< we were started with -m option? [asked to parse incoming message to $mail:received] +static const char* filespec_to_process = 0; // [file] +static const char* httpd_host_port = 0; // -p option +static const char* config_filespec = 0; // -f option or from env or next to the executable if exists +static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received] +static char* parser3_filespec = 0; // argv[0] +static char** argv_extra = NULL; + +// for error logging +static THREAD_LOCAL Request_info request_info; // global for correct log() reporting +static const char* filespec_4log = NULL; // null only if system-wide auto.p used // SAPI -static void log(const char *fmt, va_list args) { +static void log(const char* fmt, va_list args) { bool opened=false; FILE *f=0; - if(config_filespec_cstr) { + 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 && filespec_4log) { 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 + strncpy(beside_config_path, filespec_4log, 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; + strcpy(beside_config_path, "."); } char file_spec[MAX_STRING]; - snprintf(file_spec, MAX_STRING, - "%s/parser3.log", beside_config_path); + snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path); f=fopen(file_spec, "at"); opened=f!=0; } @@ -85,21 +91,26 @@ static void log(const char *fmt, va_list 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); - if(const char *stamp=ctime(&t)) { // never saw that + if(const char* stamp=ctime(&t)) { // never saw that if(size_t len=strlen(stamp)) // saw once stamp being ="" - fprintf(f, "[%.*s] ", len-1, stamp); + 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, (unsigned long)request_info.content_length); + } else + fputs(" [no request info]\n", f); if(opened) fclose(f); @@ -107,404 +118,551 @@ static void log(const char *fmt, va_list fflush(f); } -// appends to parser3.log located beside my binary if openable, to stderr otherwize -void SAPI::log(Pool& , const char *fmt, ...) { - va_list args; +#ifdef PA_DEBUG_CGI_ENTRY_EXIT +static void log(const char* fmt, ...) { + va_list args; va_start(args,fmt); - ::log(fmt, args); + 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 - va_list args; +// appends to parser3.log located next to the config file if openable, to stderr otherwize +void SAPI::log(SAPI_Info&, const char* fmt, ...) { + va_list args; va_start(args,fmt); - // log + ::log(fmt, args); + va_end(args); +} + +void SAPI::die(const char* fmt, ...) { + va_list args; - // logging is more important than user - // she can cancel download, we'd get SIG_PIPE, - // nothing would be logged then + // logging first, first vsnprintf + va_start(args,fmt); ::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, sizeof(content_length_cstr), "%u", content_length); - SAPI::add_header_attribute(*pool, "content-length", content_length_cstr); +bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) { + return info.set_env(name, value); +} - // send header - SAPI::send_header(*pool); +const char* const *SAPI::Env::get(SAPI_Info& info) { + return info.get_env(); +} - // body - SAPI::send_body(*pool, body, content_length); +size_t SAPI::read_post(SAPI_Info& info, char *buf, size_t max_bytes) { + return info.read_post(buf, max_bytes); +} - exit(1); +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); } -const char *SAPI::get_env(Pool& , const char *name) { - return getenv(name); +void SAPI::send_header(SAPI_Info& info) { + info.send_header(); } -const char *const *SAPI::environment(Pool&) { -#ifdef _MSC_VER - extern char **_environ; - return _environ; -#else - extern char **environ; - return environ; +size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) { + return info.send_body(buf, size); +} + +static void full_disk_path(const char* file_name, char *buf, size_t buf_size) { + if(file_name[0]=='/' +#ifdef WIN32 + || file_name[0] && file_name[1]==':' +#endif + ){ + strncpy(buf, file_name, buf_size-1); buf[buf_size-1]=0; + } else { + char cwd[MAX_STRING]; + snprintf(buf, buf_size, "%s/%s", getcwd(cwd, MAX_STRING) ? cwd : "", file_name); + } +#ifdef WIN32 + back_slashes_to_slashes(buf); #endif } -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); + + if(request) + request->set_skip(Request::SKIP_INTERRUPTED); } +#endif -/// @todo intelligent cache-control -void SAPI::send_header(Pool& ) { - if(cgi) { -// puts("expires: Fri, 23 Mar 2001 09:32:23 GMT"); +// requires pa_thread_request() in entry_exists() under Windows +static const char *locate_config(const char *config_filespec_option, const char *executable_path){ + filespec_4log=config_filespec_option; + if(!filespec_4log) + filespec_4log=getenv(PARSER_CONFIG_ENV_NAME); + if(!filespec_4log) + filespec_4log=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME); + if(!filespec_4log){ + // next to the executable + char *beside_executable_path = pa_strdup(executable_path); + bool stripped_filename = rsplit(beside_executable_path, '/') || rsplit(beside_executable_path, '\\'); + filespec_4log = pa_strcat(stripped_filename ? beside_executable_path : "." /* no path, just filename */ , "/" AUTO_FILE_NAME); + if(entry_exists(filespec_4log)) + return filespec_4log; +#ifdef SYSTEM_CONFIG_FILE + if(entry_exists(SYSTEM_CONFIG_FILE)){ + filespec_4log=NULL; + return SYSTEM_CONFIG_FILE; + } +#endif + return NULL; + } + return filespec_4log; +} + +#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; + } +}; + +static void config_handler(SAPI_Info &info) { + char document_root_buf[MAX_STRING]; + full_disk_path("", document_root_buf, sizeof(document_root_buf)); + + request_info.document_root = document_root_buf; + request_info.uri = ""; + request_info.argv = argv_extra; - // header | body delimiter - puts(""); + // prepare to process request + Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT)); + // only once + config_filespec = locate_config(config_filespec, parser3_filespec); + // process main auto.p only + r.core(config_filespec, false, String::Empty); +} + +static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) { + try { + memset(&request_info, 0, sizeof(request_info)); + + connection.read_header(); + info.populate_env(); + + char document_root_buf[MAX_STRING]; + full_disk_path("", 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 = (size_t)connection.content_length(); + request_info.cookie = info.get_env("HTTP_COOKIE"); + request_info.mail_received = false; + request_info.argv = argv_extra; + + // prepare to process request + Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT)); + // process the request + r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, String("httpd-main")); + } 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())); } } -void SAPI::send_body(Pool& , const void *buf, size_t size) { - stdout_write(buf, size); +#ifdef _MSC_VER +DWORD WINAPI connection_thread(void *arg){ +#else +static void *connection_thread(void *arg){ +#endif + HTTPD_Connection &connection=*(HTTPD_Connection*)arg; + SAPI_Info_HTTPD info(connection); + + try { + connection_handler(info, connection); + } catch(const Exception& e) { // exception in send_error + SAPI::log(*sapiInfo, "%s", e.comment()); + } + + delete(&connection); + return 0; } -// +static void httpd_mode() { + config_handler(*sapiInfo); -static void full_file_spec(const char *file_name, char *buf, size_t buf_size) { - if(file_name) - if(file_name[0]=='/' -#ifdef WIN32 - || (file_name[0] && file_name[1]==':') + int sock = HTTPD_Server::bind(httpd_host_port); + +#ifdef SIGCHLD + signal(SIGCHLD, SIG_IGN); +#endif +#ifdef SIGPIPE + signal(SIGPIPE, SIG_IGN); +#endif + + while(1){ +#ifndef _MSC_VER + pid_t pid=1; #endif - ) - strncpy(buf, file_name, buf_size); - else { - char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING); - snprintf(buf, buf_size, "%s/%s", cwd, file_name); + try { + request_info.method=NULL; // wipe previous request for correct logging + HTTPD_Connection connection; + if(!connection.accept(sock, 5)) + continue; + + switch (HTTPD_Server::mode) { + case HTTPD_Server::MULTITHREADED: +#ifdef _MSC_VER + if (!GC_CreateThread(0, 0, connection_thread, new HTTPD_Connection(connection), 0, 0)) + throw Exception("httpd.fork", 0, "thread creation failed"); + connection.sock = -1; + break; +#else + pthread_t thread; + pthread_attr_t attr; + pthread_attr_init(&attr); + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + + if(int result=GC_pthread_create(&thread, &attr, connection_thread, new HTTPD_Connection(connection))) + throw Exception("httpd.fork", 0, "thread creation failed (%d)", result); + connection.sock=-1; + break; + case HTTPD_Server::PARALLEL: + pid=fork(); + if(pid<0) + throw Exception("httpd.fork", 0, "fork failed: %s (%d)", strerror(errno), errno); + if(pid>0) + continue; // parent should close connection.sock as well +#endif + case HTTPD_Server::SEQUENTIAL: // and fork child + + SAPI_Info_HTTPD info(connection); + connection_handler(info, connection); + } + // closing connection socket in HTTPD_Connection destructor + } catch(const Exception& e) { // exception in accept or send_error + SAPI::log(*sapiInfo, "%s", e.comment()); } - else - buf[0]=0; -#ifdef WIN32 - back_slashes_to_slashes(buf); + +#ifndef _MSC_VER + if(pid==0) // fork child + exit(0); #endif + } } -/** -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 -*/ -static 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 || !*filespec_to_process) +static void real_parser_handler(bool cgi) { + // init libraries + pa_globals_init(); + + if(httpd_host_port){ + httpd_mode(); + } + + const char* request_method=getenv("REQUEST_METHOD"); + + if(!filespec_to_process) SAPI::die("Parser/%s", PARSER_VERSION); - // Request info - Request::Info request_info; 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_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=min(sizeof(document_root_buf)-1, strlen(filespec_to_process)-strlen(path_info)); - memcpy(document_root_buf, filespec_to_process, len); document_root_buf[len]=0; - request_info.document_root=document_root_buf; - } else - throw Exception("parser.runtime", - 0, - "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)"); - } else { - 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=request_method ? request_method : "GET"; - const char *query_string=SAPI::get_env(*pool, "QUERY_STRING"); - request_info.query_string=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*/); - strcpy(reconstructed_uri, path_info); - strcat(reconstructed_uri, "?"); - strcat(reconstructed_uri, query_string); - request_info.uri=reconstructed_uri; - } else - request_info.uri=path_info; - else - throw Exception("parser.runtime", - 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=""; - - 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.mail_received=mail_received; + // 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; + } - // 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 */); - - char config_filespec_buf[MAX_STRING]; - if(!config_filespec_cstr) { - const char *config_by_env=getenv(PARSER_CONFIG_ENV_NAME); - if(!config_by_env) - config_by_env=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME); - if(config_by_env) - config_filespec_cstr=config_by_env; - else { - // beside by binary - char beside_binary_path[MAX_STRING]; - strncpy(beside_binary_path, argv0, 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; - } - snprintf(config_filespec_buf, MAX_STRING, - "%s/%s", - beside_binary_path, AUTO_FILE_NAME); - config_filespec_cstr=config_filespec_buf; - fail_on_config_read_problem=false; + 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 + request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info; } + } else{ + full_disk_path("", document_root_buf, sizeof(document_root_buf)); + request_info.document_root = document_root_buf; + request_info.uri = ""; } - // process the request - request.core( - config_filespec_cstr, fail_on_config_read_problem, - header_only); - - // - done_socks(); - -#ifdef DEBUG_POOL_MALLOC - extern void log_pool_stats(Pool& pool); - log_pool_stats(*pool); -#endif + request_info.content_type = getenv("CONTENT_TYPE"); + request_info.content_length = (size_t)pa_atoul(getenv("CONTENT_LENGTH")); + request_info.cookie = getenv("HTTP_COOKIE"); + request_info.mail_received = mail_received; + + request_info.argv = argv_extra; -#ifdef DEBUG_STRING_APPENDS_VS_EXPANDS - SAPI::log(*pool, - "string piece appends=%lu, wcontext_result_size=%lu, string_string_shortcut_economy_closer=%lu, total_alloc_size=%lu", - string_piece_appends, - wcontext_result_size, - string_string_shortcut_economy, - total_alloc_size); +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s", request_info.method, request_info.uri, request_info.query_string, request_info.document_root, request_info.path_translated); #endif + // prepare to process request + Request r(*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(&r); + // process the request + r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0); + // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory + } + + // finalize libraries + pa_globals_done(); } -static void call_real_parser_handler__do_SEH( - const char *filespec_to_process, - const char *request_method, bool header_only) { -#if _MSC_VER && !defined(_DEBUG) +#ifdef PA_SUPPRESS_SYSTEM_EXCEPTION +static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) { + try { + real_parser_handler(cgi); + } catch(const Exception& e) { + return e; + } + + return Exception(); +} + +static void call_real_parser_handler__supress_system_exception(bool cgi) { + 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(cgi); + } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) { if(system_exception) if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord) - throw Exception(0, - 0, - "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); - else - throw Exception(0, 0, "Exception "); + throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); else - throw Exception(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); } -#endif -#ifdef HAVE_SET_NEW_HANDLER -static void failed_new() { - SAPI::die("out of memory in 'new'"); -} +#define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception +#else +#define REAL_PARSER_HANDLER real_parser_handler #endif -static void usage(const char *program) { +static void usage(const char* program) { printf( - "Parser/%s Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)\n" + "Parser/%s\n" + "Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com)\n" "Author: Alexandr Petrosian (http://paf.design.ru)\n" "\n" - "Usage: %s [options] file\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" - " -h Display usage information (this message)\n" - , PARSER_VERSION, + " -p [host:]port Start web server on this port\n" + " -h Display usage information (this message)\n", + PARSER_VERSION, program); exit(EINVAL); } -int main(int raw_argc, char *raw_argv[]) { - int argc; - char **argv; - fixopt( - raw_argc, raw_argv, - argc, argv); - - Pool_storage global_pool_storage; - Pool global_pool(&global_pool_storage); - pool=&global_pool; -#ifdef DEBUG_MAILRECEIVE - if(FILE *fake_in=fopen(DEBUG_MAILRECEIVE, "rt")) { - dup2(fake_in->_file, 0/*STDIN_FILENO*/); - } +int main(int argc, char *argv[]) { +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("main: entry"); #endif -#ifdef _DEBUG -// _crtBreakAlloc=33112; -#endif -// _asm int 3; - argv0=argv[0]; - + parser3_filespec = argv[0]; umask(2); // were we started as CGI? - cgi= - getenv("SERVER_SOFTWARE") || - getenv("SERVER_NAME") || - getenv("GATEWAY_INTERFACE") || - getenv("REQUEST_METHOD"); - - char *raw_filespec_to_process; - if(cgi) - raw_filespec_to_process=getenv("PATH_TRANSLATED"); - else { - optind = 1; - opterr = 0; - int c; - while((c = getopt(argc, argv, "hf:" -#ifdef WITH_MAILRECEIVE - "m" + bool 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 + signal(SIGUSR1, SIGUSR1_handler); #endif - )) > 0) { - switch (c) { - case 'h': - usage(argv[0]); - break; - case 'f': - config_filespec_cstr=optarg; +#ifdef SIGPIPE + signal(SIGPIPE, SIGPIPE_handler); +#endif + + char *raw_filespec_to_process = NULL; + if(cgi) { + raw_filespec_to_process=getenv("PATH_TRANSLATED"); + argv_extra=argv + 1; + } 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=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], optopt); + 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]); - break; } + } else { + raw_filespec_to_process=argv[optind]; } - if (optind != argc - 1) { - fprintf(stderr, "%s: file not specified\n", argv[0]); - usage(argv[0]); + + if (httpd_host_port && mail_received) { + fprintf(stderr, "%s: -p and -m options should not be used together\n", argv[0]); + usage(argv[0]); } - - raw_filespec_to_process=argv[optind++]; + + argv_extra=argv + optind; } -#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 ); @@ -513,44 +671,25 @@ int main(int raw_argc, char *raw_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[MAX_STRING]; - full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process)); - - const char *request_method=getenv("REQUEST_METHOD"); - bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; - 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 + char filespec_to_process_buf[MAX_STRING]; + if(raw_filespec_to_process && *raw_filespec_to_process){ + full_disk_path(raw_filespec_to_process, filespec_to_process_buf, sizeof(filespec_to_process_buf)); + filespec_to_process=filespec_to_process_buf; + } + + REAL_PARSER_HANDLER(cgi); + } 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 -//_asm int 3; - return 0; + return sapiInfo->http_response_code < 100 ? sapiInfo->http_response_code : 0; }