|
|
| version 1.166, 2002/04/04 07:57:50 | version 1.283, 2019/12/27 14:37:17 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: scripting and CGI main. | Parser: scripting and CGI main. |
| Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| $Id$ | |
| */ | */ |
| #include "pa_config_includes.h" | volatile const char * IDENT_PARSER3_C="$Id$"; |
| #if _MSC_VER | #include "pa_config_includes.h" |
| # include <new.h> | |
| # include <crtdbg.h> | |
| #else | |
| # include "pa_config_paths.h" | |
| #endif | |
| #include "pa_sapi.h" | #include "pa_sapi.h" |
| #include "classes.h" | #include "classes.h" |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_socks.h" | |
| #include "pa_version.h" | #include "pa_version.h" |
| #include "pool_storage.h" | #include "pa_vconsole.h" |
| #ifdef WIN32 | #ifdef _MSC_VER |
| # include <windows.h> | #include <crtdbg.h> |
| #include <windows.h> | |
| #include <direct.h> | |
| #endif | #endif |
| //#define DEBUG_POOL_MALLOC | // defines |
| //#define DEBUG_STRING_APPENDS_VS_EXPANDS | |
| #ifdef DEBUG_STRING_APPENDS_VS_EXPANDS | // comment remove me after debugging |
| extern ulong | //#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log" |
| string_piece_appends, | |
| wcontext_result_size, | #if defined(_MSC_VER) && !defined(_DEBUG) |
| total_alloc_size, | # define PA_SUPPRESS_SYSTEM_EXCEPTION |
| string_string_shortcut_economy; | |
| #endif | #endif |
| // consts | // consts |
| extern const char *main_RCSIds[]; | #define REDIRECT_PREFIX "REDIRECT_" |
| #ifdef USE_SMTP | #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG" |
| extern const char *smtp_RCSIds[]; | #define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG" |
| #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 | |
| }; | |
| const char *PARSER_ROOT_CONFIG_ENV_NAME="HTTP_PARSER_ROOT_CONFIG"; | |
| const char *PARSER_SITE_CONFIG_ENV_NAME="HTTP_PARSER_SITE_CONFIG"; | |
| /// IIS refuses to read bigger chunks | /// IIS refuses to read bigger chunks |
| const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M | const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M |
| const char *argv0; | static const char* argv0; |
| Pool_storage pool_storage; | static const char* config_filespec_cstr=0; |
| Pool pool(&pool_storage); // global pool [dont describe to doxygen: it confuses it with param names] | static bool fail_on_config_read_problem=true; |
| bool cgi; ///< we were started as CGI? | |
| 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 | // SAPI |
| static void log(const char *fmt, va_list args) { | class SAPI_Info { |
| bool opened; | public: |
| int http_response_code; | |
| } SAPI_info = { 0 }; | |
| static void log(const char* fmt, va_list args) { | |
| bool opened=false; | |
| FILE *f=0; | FILE *f=0; |
| if(argv0) { | const char* log_by_env=getenv(PARSER_LOG_ENV_NAME); |
| // beside by binary | 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]; | char file_spec[MAX_STRING]; |
| strncpy(file_spec, argv0, MAX_STRING-1); file_spec[MAX_STRING-1]=0; // filespec of my binary | snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path); |
| rsplit(file_spec, '/'); rsplit(file_spec, '\\');// strip filename | |
| strcat(file_spec, "/parser3.log"); | |
| f=fopen(file_spec, "at"); | f=fopen(file_spec, "at"); |
| opened=f!=0; | |
| } | } |
| opened=f!=0; | // fallback to stderr |
| if(!opened) | if(!opened) |
| f=stderr; | 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 | // prefix |
| time_t t=time(0); | time_t t=time(0); |
| const char *stamp=ctime(&t); | if(const char* stamp=ctime(&t)) { // never saw that |
| fprintf(f, "[%.*s] ", strlen(stamp)-1, stamp); | if(size_t len=strlen(stamp)) // saw once stamp being ="" |
| fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)getpid() ); | |
| } | |
| // message | // message |
| char buf[MAX_STRING]; | char buf[MAX_LOG_STRING]; |
| size_t size=vsnprintf(buf, MAX_STRING, fmt, args); | size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args); |
| remove_crlf(buf, buf+size); | size=remove_crlf(buf, buf+size); |
| fwrite(buf, size, 1, f); | 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 | // newline |
| fprintf(f, "\n"); | fputs("\n", f); |
| if(opened) | if(opened) |
| fclose(f); | fclose(f); |
| Line 110 static void log(const char *fmt, va_list | Line 128 static void log(const char *fmt, va_list |
| fflush(f); | fflush(f); |
| } | } |
| // appends to parser3.log located beside my binary if openable, to stderr otherwize | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| void SAPI::log(Pool& , const char *fmt, ...) { | static void log(const char* fmt, ...) { |
| va_list args; | va_list args; |
| va_start(args,fmt); | va_start(args,fmt); |
| ::log(fmt, args); | log(fmt, args); |
| va_end(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 | #endif |
| va_list args; | // 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); | 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); | ::log(fmt, args); |
| va_end(args); | |
| } | |
| static void die_or_abort(const char* fmt, va_list args, bool write_core) { | |
| // inform user | // inform user |
| char body[MAX_STRING]; | char body[MAX_STRING]; |
| int content_length=vsnprintf(body, MAX_STRING, fmt, args); | int content_length=vsnprintf(body, MAX_STRING, fmt, args); |
| va_end(args); | |
| // prepare header | // prepare header |
| // let's be honest, that's bad we couldn't produce valid output | // let's be honest, that's bad we couldn't produce valid output |
| SAPI::add_header_attribute(pool, "status", "500"); | // capitalized headers passed for preventing malloc during capitalization |
| SAPI::add_header_attribute(pool, "content-type", "text/plain"); | 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]; | char content_length_cstr[MAX_NUMBER]; |
| snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length); | snprintf(content_length_cstr, sizeof(content_length_cstr), "%u", content_length); |
| SAPI::add_header_attribute(pool, "content-length", content_length_cstr); | SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr); |
| // send header | // send header |
| SAPI::send_header(pool); | SAPI::send_header(SAPI_info); |
| // body | // body |
| SAPI::send_body(pool, body, content_length); | 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); | |
| } | |
| exit(1); | 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); | |
| } | |
| char* SAPI::Env::get(SAPI_Info& , const char* name) { | |
| if(char *local=getenv(name)) | |
| return pa_strdup(local); | |
| else | |
| return 0; | |
| } | } |
| const char *SAPI::get_env(Pool& , const char *name) { | const char* const *SAPI::Env::get(SAPI_Info&) { |
| return getenv(name); | #ifdef _MSC_VER |
| extern char **_environ; | |
| return _environ; | |
| #else | |
| extern char **environ; | |
| return environ; | |
| #endif | |
| } | } |
| size_t SAPI::read_post(Pool& , char *buf, size_t max_bytes) { | size_t SAPI::read_post(SAPI_Info& , char *buf, size_t max_bytes) { |
| size_t read_size=0; | size_t read_size=0; |
| do { | do { |
| int chunk_size=read(fileno(stdin), | ssize_t chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size)); |
| buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size)); | |
| if(chunk_size<=0) | if(chunk_size<=0) |
| break; | break; |
| read_size+=chunk_size; | read_size+=chunk_size; |
| Line 174 size_t SAPI::read_post(Pool& , char *buf | Line 234 size_t SAPI::read_post(Pool& , char *buf |
| return read_size; | return read_size; |
| } | } |
| void SAPI::add_header_attribute(Pool& , 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); | |
| } | } |
| /// @todo intelligent cache-control | void SAPI::send_header(SAPI_Info& ) { |
| void SAPI::send_header(Pool& ) { | |
| if(cgi) { | if(cgi) { |
| // puts("expires: Fri, 23 Mar 2001 09:32:23 GMT"); | |
| // header | body delimiter | |
| puts(""); | puts(""); |
| } | } |
| } | } |
| void SAPI::send_body(Pool& , const void *buf, size_t size) { | size_t SAPI::send_body(SAPI_Info& , const void *buf, size_t size) { |
| stdout_write(buf, size); | return stdout_write(buf, size); |
| } | } |
| // | static void full_file_spec(const char* file_name, char *buf, size_t buf_size) { |
| if(file_name) | |
| void full_file_spec(const char *file_name, char *buf, size_t buf_size) { | if(file_name[0]=='/' |
| if(file_name && !strchr(file_name, '/')) { | #ifdef WIN32 |
| char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING); | || file_name[0] && file_name[1]==':' |
| snprintf(buf, buf_size, "%s/%s", cwd, file_name); | #endif |
| } else { | ){ |
| strncpy(buf, file_name, buf_size); | 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); | |
| } | |
| else | |
| buf[0]=0; | |
| #ifdef WIN32 | #ifdef WIN32 |
| back_slashes_to_slashes(buf); | back_slashes_to_slashes(buf); |
| #endif | #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 | |
| #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; | |
| } | |
| }; | |
| /** | /** |
| main workhorse | main workhorse |
| @todo | @todo |
| IIS: remove trailing default-document[index.html] from $request.uri. | IIS: remove trailing default-document[index.html] from $request.uri. |
| to do that we need to consult metabase, | to do that we need to consult metabase, |
| wich is tested but seems slow. | wich is tested but seems slow. |
| IIS5 todo find out proper 'illegal call' check | |
| */ | */ |
| void real_parser_handler( | static void real_parser_handler(const char* filespec_to_process, const char* request_method, bool header_only) { |
| const char *filespec_to_process, | |
| const char *request_method, bool header_only) { | // init libraries |
| // init socks | pa_globals_init(); |
| init_socks(pool); | |
| // init global classes | |
| init_methoded_array(pool); | |
| // init global variables | |
| pa_globals_init(pool); | |
| if(!filespec_to_process) | if(!filespec_to_process || !*filespec_to_process) |
| SAPI::die("Parser/%s", PARSER_VERSION); | SAPI::die("Parser/%s", PARSER_VERSION); |
| // Request info | // Request info |
| Request::Info request_info; | Request_info request_info; memset(&request_info, 0, sizeof(request_info)); |
| char document_root_buf[MAX_STRING]; | char document_root_buf[MAX_STRING]; |
| 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(cgi) { |
| if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT")) | // few absolute obligatory |
| request_info.document_root=env_document_root; | const char* path_info=getenv("PATH_INFO"); |
| else if(const char *path_info=SAPI::get_env(pool, "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)"); | |
| request_info.document_root = getenv("DOCUMENT_ROOT"); | |
| if(!request_info.document_root) { | |
| // IIS | // IIS |
| size_t len=min(sizeof(document_root_buf)-1, strlen(filespec_to_process)-strlen(path_info)); | 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; | memcpy(document_root_buf, filespec_to_process, len); document_root_buf[len]=0; |
| request_info.document_root=document_root_buf; | request_info.document_root=document_root_buf; |
| } else | } |
| throw Exception("parser.runtime", | |
| 0, | request_info.uri=request_info.strip_absolute_uri(getenv("REQUEST_URI")); |
| "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)"); | if(request_info.uri) { // apache & others stuck to standards |
| } else { | /* |
| full_file_spec("", document_root_buf, sizeof(document_root_buf)); | http://parser3/env.html?123 =OK |
| request_info.document_root=document_root_buf; | $request:uri=/env.html?123 |
| } | REQUEST_URI='/env.html?123' |
| request_info.path_translated=filespec_to_process; | SCRIPT_NAME='/cgi-bin/parser3' |
| request_info.method=request_method ? request_method : "GET"; | PATH_INFO='/env.html' |
| const char *query_string=SAPI::get_env(pool, "QUERY_STRING"); | |
| request_info.query_string=query_string; | http://parser3/cgi-bin/parser3/env.html?123 =ERROR |
| if(cgi) { | $request:uri=/cgi-bin/parser3/env.html?123 |
| if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI")) | REQUEST_URI='/cgi-bin/parser3/env.html?123' |
| request_info.uri=env_request_uri; | SCRIPT_NAME='/cgi-bin/parser3' |
| else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) | PATH_INFO='/env.html' |
| if(query_string) { | */ |
| char *reconstructed_uri=(char *)pool.malloc( | size_t script_name_len=strlen(script_name); |
| strlen(path_info)+1/*'?'*/+ | size_t uri_len=strlen(request_info.uri); |
| strlen(query_string)+1/*0*/); | 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 { // seen on IIS5 | |
| if(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); | strcpy(reconstructed_uri, path_info); |
| strcat(reconstructed_uri, "?"); | strcat(reconstructed_uri, "?"); |
| strcat(reconstructed_uri, query_string); | strcat(reconstructed_uri, request_info.query_string); |
| request_info.uri=reconstructed_uri; | request_info.uri=reconstructed_uri; |
| } else | } else |
| request_info.uri=path_info; | 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=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 | |
| const char *root_config_filespec; | |
| if(const char *root_config_by_env=getenv(PARSER_ROOT_CONFIG_ENV_NAME)) | |
| root_config_filespec=root_config_by_env; | |
| else { | |
| #ifdef ROOT_CONFIG_DIR | |
| root_config_filespec=ROOT_CONFIG_DIR "/" CONFIG_FILE_NAME; | |
| #else | |
| # ifdef WIN32 | |
| // c:\windows | |
| char windows_dir[MAX_STRING]; | |
| GetWindowsDirectory(windows_dir, MAX_STRING); | |
| char buf[MAX_STRING]; | /* |
| snprintf(buf, MAX_STRING, | http://nestle/env.html?123 =OK |
| "%s/%s", | $request:uri=/env.html?123 |
| windows_dir, CONFIG_FILE_NAME); | REQUEST_URI='' |
| SCRIPT_NAME='/env.html' | |
| root_config_filespec=buf; | PATH_INFO='/env.html' |
| # else | |
| #error must be compiled either configure/make or MSVC++ | http://nestle/cgi-bin/parser3.exe/env.html =ERROR |
| # endif | $request:uri=/env.html |
| #endif | REQUEST_URI='' |
| } | SCRIPT_NAME='/cgi-bin/parser3.exe' |
| PATH_INFO='/env.html' | |
| const char *site_config_filespec; | */ |
| if(const char *site_config_by_env=getenv(PARSER_SITE_CONFIG_ENV_NAME)) | if(strcmp(script_name, path_info)!=0) |
| site_config_filespec=site_config_by_env; | SAPI::die("CGI: illegal call (2)"); |
| else { | |
| // beside by binary | |
| // @todo full path, not ./! | |
| 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 | |
| beside_binary_path[0]='.'; beside_binary_path[1]=0; | |
| } | } |
| char buf[MAX_STRING]; | } else{ |
| snprintf(buf, MAX_STRING, | full_file_spec("", document_root_buf, sizeof(document_root_buf)); |
| "%s/%s", | request_info.document_root=document_root_buf; |
| beside_binary_path, CONFIG_FILE_NAME); | request_info.uri=""; |
| site_config_filespec=buf; | |
| } | } |
| // process the request | request_info.content_type = getenv("CONTENT_TYPE"); |
| request.core( | const char* content_length = getenv("CONTENT_LENGTH"); |
| root_config_filespec, false /*don't fail_on_read_problem*/, | request_info.content_length = content_length ? atoi(content_length) : 0; |
| site_config_filespec, false /*don't fail_on_read_problem*/, | request_info.cookie = getenv("HTTP_COOKIE"); |
| header_only); | request_info.mail_received = mail_received; |
| // | request_info.argv = argv_all; |
| done_socks(); | request_info.args_skip = args_skip; |
| #ifdef DEBUG_POOL_MALLOC | // get request_info ptr for signal handlers |
| extern void log_pool_stats(Pool& pool); | ::request_info = &request_info; |
| log_pool_stats(pool); | 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 |
| #ifdef DEBUG_STRING_APPENDS_VS_EXPANDS | // prepare to process request |
| SAPI::log(pool, | Request request(SAPI_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS); |
| "string piece appends=%lu, wcontext_result_size=%lu, string_string_shortcut_economy_closer=%lu, total_alloc_size=%lu", | |
| string_piece_appends, | { |
| wcontext_result_size, | // get ::request ptr for signal handlers |
| string_string_shortcut_economy, | RequestController rc(&request); |
| total_alloc_size); | |
| #endif | 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=entry_exists(config_filespec_cstr); | |
| } | |
| } | |
| // process the request | |
| request.core(config_filespec_cstr, fail_on_config_read_problem, header_only); | |
| // ::request cleared 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, 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(); | |
| } | } |
| void call_real_parser_handler__do_SEH( | static void call_real_parser_handler__supress_system_exception(const char* filespec_to_process, const char* request_method, bool header_only){ |
| const char *filespec_to_process, | Exception parser_exception; |
| const char *request_method, bool header_only) { | |
| #if _MSC_VER && !defined(_DEBUG) | |
| LPEXCEPTION_POINTERS system_exception=0; | LPEXCEPTION_POINTERS system_exception=0; |
| __try { | __try { |
| #endif | parser_exception=call_real_parser_handler__do_PEH_return_it(filespec_to_process, request_method, header_only); |
| real_parser_handler( | |
| filespec_to_process, | |
| request_method, header_only); | |
| #if _MSC_VER && !defined(_DEBUG) | |
| } __except ( | } __except ( |
| (system_exception=GetExceptionInformation()), | (system_exception=GetExceptionInformation()), |
| EXCEPTION_EXECUTE_HANDLER) { | EXCEPTION_EXECUTE_HANDLER) |
| { | |
| if(system_exception) | if(system_exception) |
| if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord) | if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord) |
| throw Exception(0, | throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); |
| 0, | |
| "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); | |
| else | |
| throw Exception(0, 0, "Exception <no exception record>"); | |
| else | else |
| throw Exception(0, 0, "Exception <no exception information>"); | throw Exception("system", 0, "<no exception record>"); |
| else | |
| throw Exception("system", 0, "<no exception information>"); | |
| } | } |
| #endif | |
| } | |
| #if _MSC_VER | if(parser_exception) |
| int failed_new(size_t size) { | throw Exception(parser_exception); |
| SAPI::die("out of memory in 'new', failed to allocated %u bytes", size); | |
| return 0; // not reached | |
| } | } |
| #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception | |
| #else | |
| #define REAL_PARSER_HANDLER real_parser_handler | |
| #endif | #endif |
| #ifdef HAVE_SET_NEW_HANDLER | static void usage(const char* program) { |
| void failed_new() { | printf( |
| SAPI::die("out of memory in 'new'"); | "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); | |
| } | } |
| #endif | |
| int main(int argc, char *argv[]) { | int main(int argc, char *argv[]) { |
| // _asm int 3; | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| log("main: entry"); | |
| #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]; | argv0=argv[0]; |
| umask(2); | umask(2); |
| // were we started as CGI? | // were we started as CGI? |
| cgi= | cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION"); |
| getenv("SERVER_SOFTWARE") || | |
| getenv("SERVER_NAME") || | char *raw_filespec_to_process; |
| getenv("GATEWAY_INTERFACE") || | if(cgi) { |
| getenv("REQUEST_METHOD"); | raw_filespec_to_process=getenv("PATH_TRANSLATED"); |
| if(raw_filespec_to_process && !*raw_filespec_to_process) | |
| if(!cgi) { | raw_filespec_to_process=0; |
| if(argc<2) { | } else { |
| printf( | int optind=1; |
| "Parser/%s Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)\n" | while(optind < argc){ |
| "Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\n" | char *carg = argv[optind]; |
| "\n" | if(carg[0] != '-') |
| "Usage: %s <file>\n", | break; |
| PARSER_VERSION, | |
| argv0?argv0:"parser3"); | for(size_t k = 1; k < strlen(carg); k++){ |
| return 1; | 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++; | |
| } | } |
| if (optind > argc - 1) { | |
| fprintf(stderr, "%s: file not specified\n", argv[0]); | |
| usage(argv[0]); | |
| } | |
| raw_filespec_to_process=argv[optind]; | |
| args_skip=optind; | |
| } | } |
| #ifdef WIN32 | #ifdef _MSC_VER |
| setmode(fileno(stdin), _O_BINARY); | setmode(fileno(stdin), _O_BINARY); |
| setmode(fileno(stdout), _O_BINARY); | setmode(fileno(stdout), _O_BINARY); |
| setmode(fileno(stderr), _O_BINARY); | setmode(fileno(stderr), _O_BINARY); |
| #endif | #endif |
| #if _MSC_VER | #if defined(_MSC_VER) && defined(_DEBUG) |
| _set_new_handler(failed_new); | |
| #ifdef _DEBUG | |
| // Get current flag | // Get current flag |
| int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG ); | int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG ); |
| Line 459 int main(int argc, char *argv[]) { | Line 655 int main(int argc, char *argv[]) { |
| // Set flag to the new value | // Set flag to the new value |
| _CrtSetDbgFlag( tmpFlag ); | _CrtSetDbgFlag( tmpFlag ); |
| // _CrtSetBreakAlloc(471); | |
| #endif | |
| _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 *raw_filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; | |
| char filespec_to_process[MAX_STRING]; | char filespec_to_process[MAX_STRING]; |
| full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process)); | full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process)); |
| const char *request_method=getenv("REQUEST_METHOD"); | const char* request_method=getenv("REQUEST_METHOD"); |
| bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; | bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; |
| try { // global try | try { // global try |
| call_real_parser_handler__do_SEH( | REAL_PARSER_HANDLER(filespec_to_process, request_method, header_only); |
| filespec_to_process, | |
| request_method, header_only); | |
| } catch(const Exception& e) { // global problem | } catch(const Exception& e) { // global problem |
| // don't allocate anything on pool here: | // don't allocate anything on pool here: |
| // possible pool' exception not catch-ed now | // possible pool' exception not catch-ed now |
| // and there could be out-of-memory exception | // 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]; | |
| snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length); | |
| SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr); | |
| // send header | |
| SAPI::send_header(SAPI_info); | |
| // send body | |
| if(!header_only) | |
| SAPI::send_body(SAPI_info, buf, content_length); | |
| SAPI::die("exception in request exception handler: %s", e.comment()); | // unsuccessful finish |
| #ifndef _DEBUG | |
| } catch(...) { | |
| SAPI::die("<unknown exception>"); | |
| #endif | |
| } | } |
| #ifndef WIN32 | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| // | log("main: successful return"); |
| if(!cgi) | |
| SAPI::send_body(pool, "\n", 1); | |
| #endif | #endif |
| //_asm int 3; | return SAPI_info.http_response_code < 100 ? SAPI_info.http_response_code : 0; |
| return 0; | |
| } | } |