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| version 1.26, 2001/03/19 21:39:35 | version 1.278, 2017/02/08 13:05:46 |
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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) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://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_socks.h" | |
| #include "pa_version.h" | |
| #include "pa_vconsole.h" | |
| #ifdef _MSC_VER | |
| #include <crtdbg.h> | |
| #include <windows.h> | |
| #include <direct.h> | |
| #endif | #endif |
| // defines | |
| #ifdef WIN32 | // comment remove me after debugging |
| # include <windows.h> | //#define PA_DEBUG_CGI_ENTRY_EXIT "c:\\parser\\debug-parser3.log" |
| # include <io.h> | |
| #if defined(_MSC_VER) && !defined(_DEBUG) | |
| # define PA_SUPPRESS_SYSTEM_EXCEPTION | |
| #endif | #endif |
| #include <stdlib.h> | |
| #include <stdio.h> | |
| #include <string.h> | |
| #include <fcntl.h> | |
| #include "pa_common.h" | // consts |
| #include "pa_globals.h" | |
| #include "pa_request.h" | |
| Pool pool; // global pool | #define REDIRECT_PREFIX "REDIRECT_" |
| bool cgi; | #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 int args_skip=1; | |
| static char** argv_all = NULL; | |
| 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] | |
| // for signal handlers | |
| Request *request=0; | |
| Request_info *request_info=0; | |
| bool execution_canceled=false; | |
| // SAPI | |
| class SAPI_Info { | |
| public: | |
| int http_response_code; | |
| } SAPI_info = { 0 }; | |
| static void log(const char* fmt, va_list args) { | |
| bool opened=false; | |
| FILE *f=0; | |
| 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 | |
| #ifdef WIN32 | if(!opened && config_filespec_cstr) { |
| # if _MSC_VER | char beside_config_path[MAX_STRING]; |
| // intercept global system errors | strncpy(beside_config_path, config_filespec_cstr, MAX_STRING-1); beside_config_path[MAX_STRING-1]=0; |
| LONG WINAPI TopLevelExceptionFilter ( | if(!(rsplit(beside_config_path, '/') || rsplit(beside_config_path, '\\'))) { // strip filename |
| struct _EXCEPTION_POINTERS *ExceptionInfo | // no path, just filename |
| ) { | beside_config_path[0]='.'; beside_config_path[1]=0; |
| char buf[MAX_STRING]; | } |
| if(ExceptionInfo && ExceptionInfo->ExceptionRecord) { | |
| struct _EXCEPTION_RECORD *r=ExceptionInfo->ExceptionRecord; | char file_spec[MAX_STRING]; |
| snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path); | |
| int printed=0; | f=fopen(file_spec, "at"); |
| printed+=snprintf(buf+printed, MAX_STRING-printed, "Exception 0x%X at 0x%p", | opened=f!=0; |
| r->ExceptionCode, | } |
| r->ExceptionAddress); | // fallback to stderr |
| for(unsigned int i=0; i<r->NumberParameters; i++) | if(!opened) |
| printed+=snprintf(buf+printed, MAX_STRING-printed, ", 0x%X", | f=stderr; |
| r->ExceptionInformation[i]); | |
| } else | // use no memory [so that we could log out-of-memory error] |
| strcpy(buf, "Exception <unknown>"); | setbuf(f, 0); // stderr stream is unbuffered by default, but still... |
| PTHROW(0, 0, | // prefix |
| 0, | time_t t=time(0); |
| buf); | 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 | |
| return EXCEPTION_EXECUTE_HANDLER; // never reached | 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) | |
| fprintf(f, " [uri=%s, method=%s, cl=%lu]", | |
| request_info->uri? request_info->uri: "<unknown>", | |
| request_info->method? request_info->method: "<unknown>", | |
| request_info->content_length); | |
| else | |
| fputs(" [no request info]", f); | |
| // newline | |
| fputs("\n", f); | |
| if(opened) | |
| fclose(f); | |
| else | |
| fflush(f); | |
| } | } |
| # endif | |
| void fix_slashes(char *s) { | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| for(; *s; s++) | static void log(const char* fmt, ...) { |
| if(*s=='\\') | va_list args; |
| *s='/'; | va_start(args,fmt); |
| log(fmt, args); | |
| va_end(args); | |
| } | } |
| #endif | #endif |
| // service funcs | // appends to parser3.log located beside my binary if openable, to stderr otherwize |
| void SAPI::log(SAPI_Info&, const char* fmt, ...) { | |
| va_list args; | |
| va_start(args,fmt); | |
| ::log(fmt, args); | |
| va_end(args); | |
| } | |
| static void die_or_abort(const char* fmt, va_list args, bool write_core) { | |
| // inform user | |
| char body[MAX_STRING]; | |
| int content_length=vsnprintf(body, MAX_STRING, fmt, args); | |
| // prepare header | |
| // let's be honest, that's bad we couldn't produce valid output | |
| // capitalized headers passed for preventing malloc during capitalization | |
| SAPI::add_header_attribute(SAPI_info, HTTP_STATUS_CAPITALIZED, "500"); | |
| SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain"); | |
| // don't use 'format' function because it calls malloc | |
| char content_length_cstr[MAX_NUMBER]; | |
| snprintf(content_length_cstr, sizeof(content_length_cstr), "%u", content_length); | |
| SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr); | |
| // send header | |
| SAPI::send_header(SAPI_info); | |
| // body | |
| SAPI::send_body(SAPI_info, body, content_length); | |
| // exit & try to produce core dump[unix] or invoke debugger[Win32 Debug version] | |
| if(write_core) { | |
| #ifdef WIN32 | |
| // IIS with abort failes to show STDOUT, it just barks "abnormal program termination" | |
| exit(1); | |
| #else | |
| abort(); | |
| #endif | |
| } else | |
| exit(1); | |
| } | |
| void SAPI::die(const char* fmt, ...) { | |
| va_list args; | |
| // logging first, can't log inside die_or_abort due to vsnprintf (bug #106) | |
| va_start(args,fmt); | |
| ::log(fmt, args); | |
| va_end(args); | |
| va_start(args, fmt); | |
| die_or_abort(fmt, args, false /*write core?*/); | |
| // va_end(args); | |
| } | |
| void SAPI::abort(const char* fmt, ...) { | |
| va_list args; | |
| // logging first, can't log inside die_or_abort due to vsnprintf (bug #106) | |
| va_start(args,fmt); | |
| ::log(fmt, args); | |
| va_end(args); | |
| va_start(args, fmt); | |
| die_or_abort(fmt, args, true /*write core?*/); | |
| // va_end(args); | |
| } | |
| int read_post(char *buf, int max_bytes) { | char* SAPI::Env::get(SAPI_Info& , const char* name) { |
| int read_size=0; | if(char *local=getenv(name)) |
| return pa_strdup(local); | |
| else | |
| return 0; | |
| } | |
| const char* const *SAPI::Env::get(SAPI_Info&) { | |
| #ifdef _MSC_VER | |
| extern char **_environ; | |
| return _environ; | |
| #else | |
| extern char **environ; | |
| return environ; | |
| #endif | |
| } | |
| size_t SAPI::read_post(SAPI_Info& , char *buf, size_t max_bytes) { | |
| size_t read_size=0; | |
| do { | do { |
| int chunk_size=read | ssize_t chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size)); |
| (fileno(stdin), buf+read_size, min(0x400*0x400, max_bytes-read_size)); | if(chunk_size<=0) |
| if(chunk_size<0) | |
| break; | break; |
| read_size+=chunk_size; | read_size+=chunk_size; |
| } while(read_size<max_bytes); | } while(read_size<max_bytes); |
| Line 77 int read_post(char *buf, int max_bytes) | Line 235 int read_post(char *buf, int max_bytes) |
| return read_size; | return read_size; |
| } | } |
| void output_header_attribute(const char *key, const char *value) { | void SAPI::add_header_attribute(SAPI_Info& , const char* dont_store_key, const char* dont_store_value) { |
| if(cgi) | if(strcasecmp(dont_store_key, HTTP_STATUS)==0) |
| printf("%s: %s\n", key, value); | SAPI_info.http_response_code=atoi(dont_store_value); |
| if( cgi && (!request || !request->console.was_used()) ) | |
| printf("%s: %s\n", capitalize(dont_store_key), dont_store_value); | |
| } | } |
| void output_body(const char *buf, size_t size) { | void SAPI::send_header(SAPI_Info& ) { |
| if(cgi) // header | body delimiter | if(cgi) { |
| puts(""); | puts(""); |
| } | |
| } | |
| stdout_write(buf, size); | size_t SAPI::send_body(SAPI_Info& , const void *buf, size_t size) { |
| return stdout_write(buf, size); | |
| } | } |
| // main | 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]==':' | |
| #endif | |
| ) | |
| strncpy(buf, file_name, buf_size); | |
| else { | |
| char cwd[MAX_STRING]; | |
| snprintf(buf, buf_size, "%s/%s", getcwd(cwd, MAX_STRING) ? cwd : "", file_name); | |
| } | |
| else | |
| buf[0]=0; | |
| #ifdef WIN32 | |
| back_slashes_to_slashes(buf); | |
| #endif | |
| } | |
| static void log_signal(const char* signal_name) { | |
| if(request_info) | |
| SAPI::log(SAPI_info, "%s received while %s. uri=%s, method=%s, cl=%u", | |
| signal_name, | |
| request ? "executing code" : "reading data", | |
| request_info->uri, | |
| request_info->method, | |
| request_info->content_length); | |
| else | |
| SAPI::log(SAPI_info, "%s received before or after processing request", | |
| signal_name); | |
| } | |
| #ifdef SIGUSR1 | |
| static void SIGUSR1_handler(int /*sig*/){ | |
| log_signal("SIGUSR1"); | |
| } | |
| #endif | |
| #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); | |
| execution_canceled=true; | |
| if(request) | |
| request->set_skip(Request::SKIP_INTERRUPTED); | |
| } | |
| #endif | |
| int main(int argc, char *argv[]) { | |
| // TODO:umask(2); | |
| #ifdef WIN32 | #ifdef WIN32 |
| _setmode(fileno(stdin), _O_BINARY); | const char* maybe_reconstruct_IIS_status_in_qs(const char* original) |
| _setmode(fileno(stdout), _O_BINARY); | { |
| _setmode(fileno(stderr), _O_BINARY); | // 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; | |
| } | |
| #endif | #endif |
| // Service funcs | |
| service_funcs.read_post=read_post; | class RequestController { |
| service_funcs.output_header_attribute=output_header_attribute; | public: |
| service_funcs.output_body=output_body; | RequestController(Request* r){ |
| ::request=r; | |
| } | |
| ~RequestController(){ | |
| ::request=0; | |
| } | |
| }; | |
| /** | |
| 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. | |
| */ | |
| static void real_parser_handler(const char* filespec_to_process, const char* request_method, bool header_only) { | |
| // init socks | |
| pa_socks_init(); | |
| // init global variables | |
| pa_globals_init(); | |
| // were we started as CGI? | if(!filespec_to_process || !*filespec_to_process) |
| cgi= | SAPI::die("Parser/%s" |
| getenv("SERVER_SOFTWARE") || | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| getenv("SERVER_NAME") || | " with entry/exit tracing" |
| getenv("GATEWAY_INTERFACE") || | #endif |
| getenv("REQUEST_METHOD"); | , PARSER_VERSION); |
| if(!cgi) { | // Request info |
| if(argc<2) { | Request_info request_info; memset(&request_info, 0, sizeof(request_info)); |
| char *binary=argv[0]; | char document_root_buf[MAX_STRING]; |
| printf("Usage: %s <file>\n", binary?binary:"parser3"); | if(cgi) { |
| exit(1); | if(const char* env_document_root=getenv("DOCUMENT_ROOT")) |
| } | request_info.document_root=env_document_root; |
| else if(const char* path_info=getenv("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; | |
| char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; | request_info.method=request_method ? request_method : "GET"; |
| const char* query_string= | |
| #ifdef WIN32 | #ifdef WIN32 |
| fix_slashes(filespec_to_process); | maybe_reconstruct_IIS_status_in_qs |
| #endif | |
| (getenv("QUERY_STRING")); | |
| request_info.query_string=query_string; | |
| if(cgi) { | |
| // few absolute obligatory | |
| const char* path_info=getenv("PATH_INFO"); | |
| if(!path_info) | |
| SAPI::die("CGI: illegal call (missing PATH_INFO)"); | |
| const char* script_name=getenv("SCRIPT_NAME"); | |
| if(!script_name) | |
| SAPI::die("CGI: illegal call (missing SCRIPT_NAME)"); | |
| const char* env_request_uri=request_info.strip_absolute_uri(getenv("REQUEST_URI")); | |
| if(env_request_uri) | |
| request_info.uri=env_request_uri; | |
| else | |
| if(query_string) { | |
| char* reconstructed_uri=new(PointerFreeGC) char[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; | |
| if(env_request_uri) { // apache & others stuck to standards | |
| /* | |
| 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(env_request_uri); | |
| if(strncmp(env_request_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 { // seen on IIS5 | |
| /* | |
| http://nestle/env.html?123 =OK | |
| $request:uri=/env.html?123 | |
| REQUEST_URI='' | |
| SCRIPT_NAME='/env.html' | |
| PATH_INFO='/env.html' | |
| http://nestle/cgi-bin/parser3.exe/env.html =ERROR | |
| $request:uri=/env.html | |
| REQUEST_URI='' | |
| SCRIPT_NAME='/cgi-bin/parser3.exe' | |
| PATH_INFO='/env.html' | |
| */ | |
| if(strcmp(script_name, path_info)!=0) | |
| SAPI::die("CGI: illegal call (2)"); | |
| } | |
| } else | |
| request_info.uri=""; | |
| request_info.content_type=getenv("CONTENT_TYPE"); | |
| const char* content_length=getenv("CONTENT_LENGTH"); | |
| request_info.content_length=(content_length?atoi(content_length):0); | |
| request_info.cookie=getenv("HTTP_COOKIE"); | |
| request_info.mail_received=mail_received; | |
| request_info.argv=argv_all; | |
| request_info.args_skip=args_skip; | |
| // get request_info ptr for signal handlers | |
| ::request_info=&request_info; | |
| 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 | #endif |
| PTRY { // global try | // prepare to process request |
| // must be first in PTRY{}PCATCH | Request request(SAPI_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS); |
| #ifdef WIN32 | |
| # if _MSC_VER | { |
| SetUnhandledExceptionFilter(&TopLevelExceptionFilter); | // get ::request ptr for signal handlers |
| //TODO: initSocks(); | RequestController rc(&request); |
| # endif | |
| #endif | char config_filespec_buf[MAX_STRING]; |
| if(!config_filespec_cstr) { | |
| // init global variables | const char* config_by_env=getenv(PARSER_CONFIG_ENV_NAME); |
| globals_init(pool); | if(!config_by_env) |
| config_by_env=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME); | |
| if(!filespec_to_process) | if(config_by_env) |
| PTHROW(0, 0, | config_filespec_cstr=config_by_env; |
| 0, | else { |
| "no file to process"); | // beside by binary |
| char beside_binary_path[MAX_STRING]; | |
| // Request info | strncpy(beside_binary_path, argv0, MAX_STRING-1); beside_binary_path[MAX_STRING-1]=0; // filespec of my binary |
| Request::Info request_info; | if(!(rsplit(beside_binary_path, '/') || rsplit(beside_binary_path, '\\'))) { // strip filename |
| const char *document_root=getenv("DOCUMENT_ROOT"); | // no path, just filename |
| if(!document_root) { | // @todo full path, not ./! |
| static char fake_document_root[MAX_STRING]; | beside_binary_path[0]='.'; beside_binary_path[1]=0; |
| strncpy(fake_document_root, filespec_to_process, MAX_STRING); | } |
| rsplit(fake_document_root, '/'); rsplit(fake_document_root, '\\');// strip filename | snprintf(config_filespec_buf, MAX_STRING, "%s/%s", beside_binary_path, AUTO_FILE_NAME); |
| document_root=fake_document_root; | config_filespec_cstr=config_filespec_buf; |
| } | fail_on_config_read_problem=entry_exists(config_filespec_cstr); |
| request_info.document_root=document_root; | } |
| request_info.path_translated=filespec_to_process; | } |
| request_info.method=getenv("REQUEST_METHOD"); | |
| request_info.query_string=getenv("QUERY_STRING"); | |
| request_info.uri=getenv("REQUEST_URI"); | |
| request_info.content_type=getenv("CONTENT_TYPE"); | |
| const char *content_length=getenv("CONTENT_LENGTH"); | |
| request_info.content_length=(content_length?atoi(content_length):0); | |
| request_info.cookie=getenv("HTTP_COOKIE"); | |
| // prepare to process request | |
| Request request(Pool(), | |
| request_info, | |
| cgi ? String::Untaint_lang::HTML_TYPO : String::Untaint_lang::NO | |
| ); | |
| // some root-controlled location | // process the request |
| char *sys_auto_path1; | request.core(config_filespec_cstr, fail_on_config_read_problem, header_only); |
| #ifdef WIN32 | |
| // c:\windows | // ::request cleared in RequestController desctructor to prevent signal handlers from accessing invalid memory |
| sys_auto_path1=(char *)pool.malloc(MAX_STRING); | } |
| GetWindowsDirectory(sys_auto_path1, MAX_STRING); | |
| strcat(sys_auto_path1, PATH_DELIMITER_STRING); | // finalize global variables |
| pa_globals_done(); | |
| // | |
| pa_socks_done(); | |
| } | |
| #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION | |
| static const Exception call_real_parser_handler__do_PEH_return_it(const char* filespec_to_process, const char* request_method, bool header_only){ | |
| try { | |
| real_parser_handler(filespec_to_process, request_method, header_only); | |
| } catch(const Exception& e) { | |
| return e; | |
| } | |
| return Exception(); | |
| } | |
| static void call_real_parser_handler__supress_system_exception(const char* filespec_to_process, const char* request_method, bool header_only){ | |
| Exception parser_exception; | |
| LPEXCEPTION_POINTERS system_exception=0; | |
| __try { | |
| parser_exception=call_real_parser_handler__do_PEH_return_it(filespec_to_process, request_method, header_only); | |
| } __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 | #else |
| // ~nobody | #define REAL_PARSER_HANDLER real_parser_handler |
| sys_auto_path1=getenv("HOME"); | |
| #endif | #endif |
| 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 <paf@design.ru> (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" | |
| " -h Display usage information (this message)\n", | |
| PARSER_VERSION, | |
| program); | |
| exit(EINVAL); | |
| } | |
| int main(int argc, char *argv[]) { | |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | |
| log("main: entry"); | |
| #endif | |
| #ifndef PA_DEBUG_DISABLE_GC | |
| GC_java_finalization=0; | |
| // Dont collect unless explicitly requested | |
| // this is quicker (~30% ), but less memory-efficient(~8%) | |
| // so deciding for speed | |
| GC_dont_gc=1; | |
| #endif | |
| #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 | |
| argv_all=argv; | |
| argv0=argv[0]; | |
| umask(2); | |
| // were we started as CGI? | |
| cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION"); | |
| char *raw_filespec_to_process; | |
| 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; | |
| #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++; | |
| } | |
| // beside by binary | if (optind > argc - 1) { |
| char *sys_auto_path2=(char *)pool.malloc(MAX_STRING); | fprintf(stderr, "%s: file not specified\n", argv[0]); |
| strncpy(sys_auto_path2, argv[0], MAX_STRING); // filespec of my binary | usage(argv[0]); |
| rsplit(sys_auto_path2, '/'); rsplit(sys_auto_path2, '\\');// strip filename | } |
| strcat(sys_auto_path2, PATH_DELIMITER_STRING); | raw_filespec_to_process=argv[optind]; |
| args_skip=optind; | |
| // process the request | } |
| request.core(pool.exception(), | |
| sys_auto_path1, | |
| sys_auto_path2); | |
| // no actions with request' data past this point | |
| // request.exception not not handled here, but all | |
| // request' data are associated with it's pool=exception | |
| // must be last in PTRY{}PCATCH | #ifdef _MSC_VER |
| #ifdef WIN32 | setmode(fileno(stdin), _O_BINARY); |
| # if _MSC_VER | setmode(fileno(stdout), _O_BINARY); |
| SetUnhandledExceptionFilter(0); | setmode(fileno(stderr), _O_BINARY); |
| # endif | |
| #endif | #endif |
| // successful finish | |
| return 0; | |
| } PCATCH(e) { // global problem | |
| const char *body=e.comment(); | |
| int content_length=strlen(body); | |
| // header | #if defined(_MSC_VER) && defined(_DEBUG) |
| (*service_funcs.output_header_attribute)("content-type", "text/plain"); | // 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 | |
| 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 | |
| REAL_PARSER_HANDLER(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 | |
| char buf[MAX_STRING]; | |
| snprintf(buf, MAX_STRING, "Unhandled exception %s", e.comment()); | |
| // log it | |
| SAPI::log(SAPI_info, "%s", buf); | |
| // | |
| int content_length=strlen(buf); | |
| // prepare header | |
| // capitalized headers are used for preventing malloc during capitalization | |
| SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain"); | |
| // don't use 'format' function because it calls malloc | |
| char content_length_cstr[MAX_NUMBER]; | char content_length_cstr[MAX_NUMBER]; |
| snprintf(content_length_cstr, MAX_NUMBER, "%d", content_length); | snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length); |
| (*service_funcs.output_header_attribute)("content-length", | SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr); |
| content_length_cstr); | |
| // send header | |
| SAPI::send_header(SAPI_info); | |
| // body | // send body |
| (*service_funcs.output_body)(body, content_length); | if(!header_only) |
| SAPI::send_body(SAPI_info, buf, content_length); | |
| // unsuccessful finish | // unsuccessful finish |
| return 1; | |
| } | } |
| PEND_CATCH | |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | |
| log("main: successful return"); | |
| #endif | |
| return SAPI_info.http_response_code < 100 ? SAPI_info.http_response_code : 0; | |
| } | } |