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| version 1.16, 2001/03/18 11:37:53 | version 1.368, 2026/04/25 13:38:46 |
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| Line 1 | Line 1 |
| /* | /** @file |
| Parser | Parser: scripting and CGI main. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com) |
| Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru> | |
| */ | */ |
| #ifdef HAVE_CONFIG_H | volatile const char * IDENT_PARSER3_C="$Id$"; |
| # include "pa_config.h" | |
| #include "pa_config_includes.h" | |
| #include "pa_sapi.h" | |
| #include "classes.h" | |
| #include "pa_common.h" | |
| #include "pa_request.h" | |
| #include "pa_version.h" | |
| #include "pa_threads.h" | |
| #include "pa_vconsole.h" | |
| #include "pa_sapi_info.h" | |
| #ifdef _MSC_VER | |
| #include <crtdbg.h> | |
| #include <windows.h> | |
| #include <direct.h> | |
| extern "C" HANDLE WINAPI GC_CreateThread(LPSECURITY_ATTRIBUTES, DWORD, LPTHREAD_START_ROUTINE, LPVOID, DWORD, LPDWORD); | |
| #else | |
| extern "C" int GC_pthread_create(pthread_t *, const pthread_attr_t *, void *(*)(void *), void * /* arg */); | |
| #endif | #endif |
| // defines | |
| // comment remove me after debugging | |
| //#define PA_DEBUG_CGI_ENTRY_EXIT | |
| #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" | |
| SAPI_Info sapi_console; | |
| SAPI_Info_CGI sapi_cgi; | |
| static SAPI_Info *sapi_info = &sapi_cgi; | |
| static THREAD_LOCAL SAPI_Info *sapi_info_4log = NULL; // global for correct send error in die() | |
| const char* parser3_mode = "cgi"; // $status:mode | |
| 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 const char* log_filespec = 0; // -l option | |
| static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received] | |
| static const char* parser3_filespec = 0; // argv[0] | |
| static char** argv_extra = NULL; | |
| // for error logging | |
| static THREAD_LOCAL Request_info *request_info_4log = NULL; // global for correct log() reporting | |
| static const char* filespec_4log = NULL; // null only if system-wide auto.p used | |
| template <typename T> static T *dir_pos(T *fname){ | |
| T *result=NULL; | |
| while (fname=strpbrk(fname, "/\\")){ | |
| result=fname; | |
| fname++; | |
| } | |
| return result; | |
| } | |
| const char *parser3_log_filespec() { // $status:log-filename | |
| const char* slog=log_filespec; | |
| if(!slog) | |
| slog=getenv(PARSER_LOG_ENV_NAME); | |
| if(!slog) | |
| slog=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME); | |
| if(!slog) { | |
| static char log_spec[MAX_STRING + 12 /* '/parser3.log' */]; | |
| pa_strncpy(log_spec, filespec_4log, MAX_STRING); | |
| if(char* log_dir_pos=dir_pos(log_spec)){ | |
| strcpy(log_dir_pos, "/parser3.log"); | |
| } else { | |
| // no path, just filename | |
| strcpy(log_spec, "./parser3.log"); | |
| } | |
| slog=log_spec; | |
| } | |
| return slog; | |
| } | |
| // SAPI | |
| static void pa_log(const char* fmt, va_list args) { | |
| // use no memory [so that we could log out-of-memory error] | |
| const char* slog=parser3_log_filespec(); | |
| FILE *f=strcmp(slog,"-") ? fopen(slog, "at") : stderr; | |
| // fallback to stderr | |
| if(!f) | |
| f=stderr; | |
| 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(size_t len=strlen(stamp)) // saw once stamp being ="" | |
| fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)pa_get_thread_id() ); | |
| } | |
| // message | |
| 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); | |
| if(request_info_4log && request_info_4log->method) { | |
| fprintf(f, " [uri=%s, method=%s, cl=%lu]\n", request_info_4log->uri ? request_info_4log->uri : "<unknown>", request_info_4log->method, (unsigned long)request_info_4log->content_length); | |
| } else | |
| fputs(" [no request info]\n", f); | |
| if(f!=stderr) | |
| fclose(f); | |
| else | |
| fflush(f); | |
| } | |
| void pa_log(const char* fmt, ...) { | |
| va_list args; | |
| va_start(args,fmt); | |
| pa_log(fmt, args); | |
| va_end(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); | |
| pa_log(fmt, args); | |
| va_end(args); | |
| } | |
| void SAPI::die(const char* fmt, ...) { | |
| va_list args; | |
| // logging first, first vsnprintf | |
| va_start(args,fmt); | |
| pa_log(fmt, args); | |
| va_end(args); | |
| // inform user, second vsnprintf | |
| va_start(args, fmt); | |
| char message[MAX_STRING]; | |
| vsnprintf(message, MAX_STRING, fmt, args); | |
| SAPI::send_error(sapi_info_4log ? *sapi_info_4log : *sapi_info, message); | |
| exit(1); | |
| // va_end(args); | |
| } | |
| void SAPI::send_error(SAPI_Info& info, const char *exception_cstr, const char *status){ | |
| info.send_error(exception_cstr, status); | |
| } | |
| char* SAPI::Env::get(SAPI_Info& info, const char* name) { | |
| return info.get_env(name); | |
| } | |
| bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) { | |
| return info.set_env(name, value); | |
| } | |
| const char* const *SAPI::Env::get(SAPI_Info& info) { | |
| return info.get_env(); | |
| } | |
| size_t SAPI::read_post(SAPI_Info& info, char* buf, size_t max_bytes) { | |
| return info.read_post(buf, max_bytes); | |
| } | |
| void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) { | |
| info.add_header(dont_store_key, dont_store_value); | |
| } | |
| void SAPI::send_headers(SAPI_Info& info) { | |
| info.send_headers(); | |
| } | |
| void SAPI::clear_headers(SAPI_Info& info) { | |
| info.clear_headers(); | |
| } | |
| size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) { | |
| return info.send_body(buf, size); | |
| } | |
| static const char* full_disk_path(const char* file_name = "") { | |
| char* result; | |
| if(file_name[0]=='/' | |
| #ifdef WIN32 | |
| || file_name[0] && file_name[1]==':' | |
| #endif | |
| ){ | |
| result=pa_strdup(file_name); | |
| } else { | |
| char cwd[MAX_STRING]; | |
| result=pa_strcat(getcwd(cwd, MAX_STRING) ? cwd : "", "/", file_name); | |
| } | |
| #ifdef WIN32 | #ifdef WIN32 |
| # include <windows.h> | back_slashes_to_slashes(result); |
| # include <io.h> | |
| #endif | #endif |
| #include <stdlib.h> | return result; |
| #include <stdio.h> | } |
| #include <string.h> | |
| #include <fcntl.h> | |
| #include "pa_globals.h" | static void log_signal(const char* signal_name) { |
| #include "pa_request.h" | pa_log("%s received %s processing request", signal_name, request ? "while" : "before or after"); |
| #include "pa_common.h" | } |
| Pool pool; // global pool | #ifdef SIGPIPE |
| #define SIGPIPE_NAME "SIGPIPE" | |
| static const String sigpipe_name(SIGPIPE_NAME); | |
| static void SIGPIPE_handler(int /*sig*/){ | |
| Value* sigpipe=0; | |
| if(request) | |
| sigpipe=request->main_class.get_element(sigpipe_name); | |
| if(sigpipe && sigpipe->as_bool()) | |
| log_signal(SIGPIPE_NAME); | |
| if(request) | |
| request->set_skip(Request::SKIP_INTERRUPTED); | |
| } | |
| #endif | |
| // 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){ | |
| const char* exec_dir_pos = dir_pos(executable_path); | |
| #ifdef SYSTEM_CONFIG_FILE | |
| if(exec_dir_pos){ | |
| #endif | |
| // next to the executable | |
| if(!exec_dir_pos || (exec_dir_pos==executable_path+1 && *executable_path=='.')){ | |
| // when just parser3 or ./parser3 full path should be used to avoid "parser already configured" | |
| filespec_4log=full_disk_path(AUTO_FILE_NAME); | |
| } else { | |
| filespec_4log=pa_strcat(pa_strdup(executable_path, exec_dir_pos - executable_path), "/" 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 | #ifdef WIN32 |
| # if _MSC_VER | static const char* maybe_reconstruct_IIS_status_in_qs(const char* original) { |
| // intercept global system errors | // 404;http://servername/page[?param=value...] |
| LONG WINAPI TopLevelExceptionFilter ( | // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser |
| struct _EXCEPTION_POINTERS *ExceptionInfo | // and can consider that as an indication that this is IIS way to report errors |
| ) { | |
| char buf[MAX_STRING]; | if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){ |
| if(ExceptionInfo && ExceptionInfo->ExceptionRecord) { | size_t original_len=strlen(original); |
| struct _EXCEPTION_RECORD *r=ExceptionInfo->ExceptionRecord; | char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1]; |
| char* cur=reconstructed; | |
| int printed=0; | memcpy(cur, "IIS-STATUS=", 11); cur+=11; |
| printed+=snprintf(buf+printed, MAX_STRING-printed, "Exception 0x%X at 0x%p", | memcpy(cur, original, 3); cur+=3; |
| r->ExceptionCode, | *cur++='&'; |
| r->ExceptionAddress); | |
| for(unsigned int i=0; i<r->NumberParameters; i++) | const char* qmark_at=strchr(original, '?'); |
| printed+=snprintf(buf+printed, MAX_STRING-printed, ", 0x%X", | memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13; |
| r->ExceptionInformation[i]); | { |
| } else | size_t value_len=(qmark_at ? qmark_at-original : original_len)-4; |
| strcpy(buf, "Exception <unknown>"); | 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; | |
| } | |
| PTHROW(0, 0, | return original; |
| 0, | } |
| buf); | |
| return EXCEPTION_EXECUTE_HANDLER; // never reached | |
| } | |
| # endif | |
| #endif | |
| int read_post(char *buf, int max_bytes) { | |
| int read_size=0; | |
| do { | |
| int chunk_size=read | |
| (fileno(stdin), buf+read_size, min(0x400*0x400, max_bytes-read_size)); | |
| if(chunk_size<0) | |
| break; | |
| read_size+=chunk_size; | |
| } while(read_size<max_bytes); | |
| return read_size; | static const char* maybe_back_slashes_to_slashes(const char* original){ |
| char *result=pa_strdup(original); | |
| back_slashes_to_slashes(result); | |
| return result; | |
| } | } |
| int main(int argc, char *argv[]) { | #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s) |
| //TODO: umask(2); | #define MAYBE_BACK_SLASHES_TO_SLASHES(s) maybe_back_slashes_to_slashes(s) |
| #ifdef WIN32 | |
| _setmode(fileno(stdin), _O_BINARY); | #else |
| _setmode(fileno(stdout), _O_BINARY); | |
| _setmode(fileno(stderr), _O_BINARY); | #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s |
| #define MAYBE_BACK_SLASHES_TO_SLASHES(s) s | |
| #endif | #endif |
| // Service funcs | class RequestController { |
| service_funcs.read_post=read_post; | public: |
| RequestController(Request* r){ | |
| // were we started as CGI? | request=r; |
| bool cgi= | |
| getenv("SERVER_SOFTWARE") || | |
| getenv("SERVER_NAME") || | |
| getenv("GATEWAY_INTERFACE") || | |
| getenv("REQUEST_METHOD"); | |
| if(!cgi) { | |
| if(argc<2) { | |
| char *binary=argv[0]; | |
| printf("Usage: %s <file>\n", binary?binary:"parser3"); | |
| exit(1); | |
| } | |
| } | } |
| ~RequestController(){ | |
| request=0; | |
| } | |
| }; | |
| const char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; | class RequestInfoController { |
| public: | |
| RequestInfoController(Request_info* rinfo, SAPI_Info* sinfo){ | |
| request_info_4log=rinfo; | |
| sapi_info_4log=sinfo; | |
| } | |
| ~RequestInfoController(){ | |
| request_info_4log=0; | |
| sapi_info_4log=0; | |
| } | |
| }; | |
| PTRY { // global try | /** httpd support */ |
| // must be first in PTRY{}PCATCH | static const String httpd_class_name("httpd"); |
| #ifdef WIN32 | |
| # if _MSC_VER | static void config_handler(SAPI_Info &info) { |
| SetUnhandledExceptionFilter(&TopLevelExceptionFilter); | Request_info request_info; |
| //TODO: initSocks(); | RequestInfoController ric(&request_info, &info); |
| # endif | |
| #endif | request_info.document_root = full_disk_path(); |
| request_info.uri = ""; | |
| // init global variables | request_info.argv = argv_extra; |
| globals_init(pool); | |
| // prepare to process request | |
| if(!filespec_to_process) | Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT)); |
| PTHROW(0, 0, | // only once |
| 0, | config_filespec = locate_config(config_filespec, parser3_filespec); |
| "no file to process"); | // process main auto.p only |
| r.core(config_filespec, false, String::Empty); | |
| // Request info | } |
| // TODO: ifdef WIN32 flip \\ to / | |
| Request::Info request_info; | static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) { |
| const char *document_root=getenv("DOCUMENT_ROOT"); | Request_info request_info; |
| if(!document_root) { | RequestInfoController ric(&request_info, &info); |
| static char fake_document_root[MAX_STRING]; | |
| strncpy(fake_document_root, filespec_to_process, MAX_STRING); | try { |
| rsplit(fake_document_root, '/'); rsplit(fake_document_root, '\\');// strip filename | if(!connection.read_header()) |
| document_root=fake_document_root; | return; // ignore "void" connections |
| } | info.populate_env(); |
| request_info.document_root=document_root; | |
| request_info.path_translated=filespec_to_process; | request_info.document_root = full_disk_path(); |
| request_info.method=getenv("REQUEST_METHOD"); | request_info.path_translated = filespec_to_process; |
| request_info.query_string=getenv("QUERY_STRING"); | request_info.method = connection.method(); |
| request_info.uri=getenv("REQUEST_URI"); | request_info.query_string = connection.query(); |
| request_info.content_type=getenv("CONTENT_TYPE"); | request_info.uri = request_info.strip_absolute_uri(connection.uri()); |
| const char *content_length=getenv("CONTENT_LENGTH"); | request_info.content_type = connection.content_type(); |
| request_info.content_length=(content_length?atoi(content_length):0); | 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 | // prepare to process request |
| Request request(Pool(), | Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT)); |
| request_info, | // process the request |
| cgi ? String::Untaint_lang::HTML_TYPO : String::Untaint_lang::NO | r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, main_method_name, &httpd_class_name); |
| ); | } catch(const Exception& e) { // exception in connection handling |
| SAPI::log(info, "%s", e.comment()); | |
| // some root-controlled location | const char* status = info.exception_http_status(e.type()); |
| char *sys_auto_path1; | if(*status) |
| #ifdef WIN32 | SAPI::send_error(info, e.comment(), status); |
| // c:\windows | } |
| sys_auto_path1=(char *)pool.malloc(MAX_STRING); | } |
| GetWindowsDirectory(sys_auto_path1, MAX_STRING); | |
| strcat(sys_auto_path1, PATH_DELIMITER_STRING); | #ifdef _MSC_VER |
| DWORD WINAPI connection_thread(void *arg){ | |
| #else | #else |
| // ~nobody | static void *connection_thread(void *arg){ |
| sys_auto_path1=getenv("HOME"); | |
| #endif | #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 | |
| pa_log("%s", e.comment()); | |
| } | |
| delete(&connection); | |
| return 0; | |
| } | |
| static void httpd_mode() { | |
| config_handler(*sapi_info); | |
| SOCKET sock = HTTPD_Server::bind(httpd_host_port); | |
| #ifdef SIGPIPE | |
| signal(SIGPIPE, SIG_IGN); | |
| #endif | |
| while(1){ | |
| #ifndef _MSC_VER | |
| pid_t pid=1; | |
| if(HTTPD_Server::mode == HTTPD_Server::PARALLEL) | |
| while (waitpid((pid_t)(-1), 0, WNOHANG) > 0); | |
| #endif | |
| try { | |
| HTTPD_Connection connection; | |
| if(!connection.accept(sock, 500)) | |
| 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=INVALID_SOCKET; | |
| break; | |
| #else | |
| #ifdef HAVE_TLS | |
| 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=INVALID_SOCKET; | |
| break; | |
| #endif | |
| 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 | |
| pa_log("%s", e.comment()); | |
| } | |
| #ifndef _MSC_VER | |
| if(pid==0) // fork child | |
| exit(0); | |
| #endif | |
| } | |
| } | |
| /** main workhorse */ | |
| 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::send_error(*sapi_info, "Parser/" PARSER_VERSION); | |
| exit(1); | |
| } | |
| // global request info | |
| Request_info request_info; | |
| RequestInfoController ric(&request_info, sapi_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) { | |
| // obligatory | |
| const char* path_info=getenv("PATH_INFO"); | |
| if(!path_info) | |
| SAPI::die("parser3: illegal CGI call (missing PATH_INFO)"); | |
| // beside by binary | request_info.document_root = getenv("DOCUMENT_ROOT"); |
| char *sys_auto_path2=(char *)pool.malloc(MAX_STRING); | if(!request_info.document_root) { |
| strncpy(sys_auto_path2, argv[0], MAX_STRING); // filespec of my binary | // IIS or fcgiwrap minimalistic setup |
| rsplit(sys_auto_path2, '/'); rsplit(sys_auto_path2, '\\');// strip filename | ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info); |
| strcat(sys_auto_path2, PATH_DELIMITER_STRING); | if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0) |
| SAPI::die("parser3: illegal CGI 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("parser3: illegal CGI 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("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)"); | |
| } 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{ | |
| request_info.document_root = full_disk_path(); | |
| request_info.uri = ""; | |
| } | |
| request_info.content_type = getenv("CONTENT_TYPE"); | |
| request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST | |
| request_info.cookie = getenv("HTTP_COOKIE"); | |
| request_info.mail_received = mail_received; | |
| request_info.argv = argv_extra; | |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | |
| pa_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(*sapi_info, 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 | // process the request |
| request.core(pool.exception(), | r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0); |
| sys_auto_path1, | // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory |
| sys_auto_path2); | } |
| // extract request.response body | // finalize libraries |
| Value *body_value=static_cast<Value *>( | pa_globals_done(); |
| request.response.fields().get(*body_name)); | } |
| const char *body=body_value? | |
| body_value->as_string().cstr():"no body";// TODO: IMAGE&FILE | #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION |
| static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) { | |
| // OK. write out the result | try { |
| if(cgi) { | real_parser_handler(cgi); |
| // content-type: | } catch(const Exception& e) { |
| Value *content_type_value=static_cast<Value *>( | return e; |
| request.response.fields().get(*content_type_name)); | } |
| const char *content_type=content_type_value? | |
| content_type_value->as_string().cstr():"text/html"; | return Exception(); |
| } | |
| // header | |
| printf( | static void call_real_parser_handler__supress_system_exception(bool cgi) { |
| "Content-type: %s\n" | Exception parser_exception; |
| "Content-length: %d\n" | LPEXCEPTION_POINTERS system_exception=0; |
| "\n", | |
| content_type, | __try { |
| strlen(body)); | 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("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); | |
| else | |
| throw Exception("system", 0, "<no exception record>"); | |
| else | |
| throw Exception("system", 0, "<no exception information>"); | |
| } | |
| 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 | |
| static void usage(const char* message=NULL) { | |
| if(message){ | |
| fprintf(stderr, message, parser3_filespec); | |
| } | |
| printf( | |
| "Parser/%s\n" | |
| "Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)\n" | |
| "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <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" | |
| " -l log_file Use this log file (/path/to/parser3.log)\n" | |
| " -p [host:]port Start web server on this port\n" | |
| " -h Display usage information (this message)\n", | |
| PARSER_VERSION, | |
| parser3_filespec ? parser3_filespec : "parser3" ); | |
| exit(EINVAL); | |
| } | |
| #define ARG_REQUIRED \ | |
| if(c[1] || !*(++carg)){ \ | |
| fprintf(stderr, "%s: option '%c' requires an argument\n", parser3_filespec, *c); \ | |
| usage(); \ | |
| } | |
| int main(int argc, char *argv[]) { | |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | |
| pa_log("main: entry"); | |
| #endif | |
| if(!argc || !argv[0]) | |
| usage(); | |
| parser3_filespec = MAYBE_BACK_SLASHES_TO_SLASHES(argv[0]); | |
| umask(2); | |
| // were we started as CGI? | |
| bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION"); | |
| if(!cgi){ | |
| sapi_info = &sapi_console; | |
| parser3_mode = "console"; | |
| } | |
| #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 { | |
| char** carg = argv + 1; | |
| for(;*carg; carg++){ | |
| if((*carg)[0] != '-') | |
| break; | |
| for(char* c=(*carg)+1; *c; c++){ | |
| switch (*c) { | |
| case 'h': | |
| usage(); | |
| break; | |
| case 'f': | |
| ARG_REQUIRED; | |
| config_filespec=*carg; | |
| break; | |
| case 'l': | |
| ARG_REQUIRED; | |
| log_filespec=*carg; | |
| break; | |
| case 'p': | |
| ARG_REQUIRED; | |
| httpd_host_port=*carg; | |
| parser3_mode="httpd"; | |
| break; | |
| #ifdef WITH_MAILRECEIVE | |
| case 'm': | |
| mail_received=true; | |
| parser3_mode="mail"; | |
| break; | |
| #endif | |
| default: | |
| fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, *c); | |
| usage(); | |
| break; | |
| } | |
| } | |
| } | |
| if (*carg) { | |
| raw_filespec_to_process=*carg; | |
| } else { | |
| if(!httpd_host_port) | |
| usage("%s: file not specified\n"); | |
| } | } |
| // body | |
| stdout_write(body); | |
| // must be last in PTRY{}PCATCH | if (httpd_host_port && mail_received) |
| #ifdef WIN32 | usage("%s: -p and -m options should not be used together\n"); |
| # if _MSC_VER | |
| SetUnhandledExceptionFilter(0); | argv_extra=carg; |
| # endif | } |
| // successful finish | |
| return 0; | |
| #endif | |
| } PCATCH(e) { // global problem | |
| // @globals fill | |
| // @Request create | |
| // @prepare to .core() | |
| // @request.core when reporting request exception | |
| // @write result | |
| const char *error=e.comment(); | |
| if(cgi) { | |
| printf( | |
| "Content-type: text/plain\n" | |
| "Content-length: %d\n" | |
| "\n", | |
| strlen(error)); | |
| stdout_write(error); | |
| } else | |
| fputs(error, stderr); | |
| // unsuccessful finish | #ifdef _MSC_VER |
| return 1; | setmode(fileno(stdin), _O_BINARY); |
| setmode(fileno(stdout), _O_BINARY); | |
| setmode(fileno(stderr), _O_BINARY); | |
| #endif | |
| #if defined(_MSC_VER) && defined(_DEBUG) | |
| // Get current flag | |
| int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG ); | |
| // Turn on leak-checking bit | |
| tmpFlag |= _CRTDBG_LEAK_CHECK_DF; | |
| // Set flag to the new value | |
| _CrtSetDbgFlag( tmpFlag ); | |
| _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE ); | |
| _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR ); | |
| #endif | |
| try { // global try | |
| if(raw_filespec_to_process && *raw_filespec_to_process){ | |
| filespec_to_process=full_disk_path(raw_filespec_to_process); | |
| } | |
| REAL_PARSER_HANDLER(cgi); | |
| } catch(const Exception& e) { // exception in config_handler | |
| SAPI::log(*sapi_info, "%s", e.comment()); | |
| SAPI::send_error(*sapi_info, e.comment(), strcmp(e.type(), "file.missing") ? "500" : "404"); | |
| } | } |
| PEND_CATCH | |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | |
| pa_log("main: successful return"); | |
| #endif | |
| return sapi_info->http_response_code < 100 ? sapi_info->http_response_code : 0; | |
| } | } |