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| version 1.286, 2019/12/27 21:32:33 | version 1.357, 2024/11/04 22:58:37 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: scripting and CGI main. | Parser: scripting and CGI main. |
| Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com) | Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru> |
| */ | */ |
| volatile const char * IDENT_PARSER3_C="$Id$"; | volatile const char * IDENT_PARSER3_C="$Id$"; |
| Line 14 volatile const char * IDENT_PARSER3_C="$ | Line 14 volatile const char * IDENT_PARSER3_C="$ |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_version.h" | #include "pa_version.h" |
| #include "pa_threads.h" | |
| #include "pa_vconsole.h" | #include "pa_vconsole.h" |
| #include "pa_sapi_info.h" | |
| #ifdef _MSC_VER | #ifdef _MSC_VER |
| #include <crtdbg.h> | #include <crtdbg.h> |
| #include <windows.h> | #include <windows.h> |
| #include <direct.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 | // defines |
| // comment remove me after debugging | // comment remove me after debugging |
| //#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log" | //#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log" |
| #if defined(_MSC_VER) && !defined(_DEBUG) | #if defined(_MSC_VER) && !defined(_DEBUG) |
| # define PA_SUPPRESS_SYSTEM_EXCEPTION | # define PA_SUPPRESS_SYSTEM_EXCEPTION |
| Line 37 volatile const char * IDENT_PARSER3_C="$ | Line 46 volatile const char * IDENT_PARSER3_C="$ |
| #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG" | #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG" |
| #define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG" | #define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG" |
| /// IIS refuses to read bigger chunks | SAPI_Info_CGI cgi_is_default; |
| const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M | SAPI_Info *sapiInfo=&cgi_is_default; |
| static const char* argv0; | static const char* filespec_to_process = 0; // [file] |
| static const char* config_filespec_cstr=0; | static const char* httpd_host_port = 0; // -p option |
| static bool fail_on_config_read_problem=true; | static const char* config_filespec = 0; // -f option or from env or next to the executable if exists |
| static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received] | |
| static int args_skip=1; | static const char* parser3_filespec = 0; // argv[0] |
| static char** argv_all = NULL; | static char** argv_extra = NULL; |
| static bool cgi; ///< we were started as CGI? | // for error logging |
| static bool mail_received=false; ///< we were started with -m option? [asked to parse incoming message to $mail:received] | 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 | |
| // for signal handlers | |
| Request *request=0; | template <typename T> static T *dir_pos(T *fname){ |
| Request_info *request_info=0; | T *result=NULL; |
| bool execution_canceled=false; | while (fname=strpbrk(fname, "/\\")){ |
| result=fname; | |
| fname++; | |
| } | |
| return result; | |
| } | |
| // SAPI | // SAPI |
| class SAPI_Info { | static void pa_log(const char* fmt, va_list args) { |
| public: | |
| int http_response_code; | |
| } SAPI_info = { 0 }; | |
| static void log(const char* fmt, va_list args) { | |
| bool opened=false; | bool opened=false; |
| FILE *f=0; | FILE *f=0; |
| Line 78 static void log(const char* fmt, va_list | Line 87 static void log(const char* fmt, va_list |
| opened=f!=0; | opened=f!=0; |
| #endif | #endif |
| if(!opened && config_filespec_cstr) { | if(!opened && filespec_4log) { |
| char beside_config_path[MAX_STRING]; | char log_spec[MAX_STRING + 12 /* '/parser3.log' */]; |
| strncpy(beside_config_path, config_filespec_cstr, MAX_STRING-1); beside_config_path[MAX_STRING-1]=0; | pa_strncpy(log_spec, filespec_4log, MAX_STRING); |
| if(!(rsplit(beside_config_path, '/') || rsplit(beside_config_path, '\\'))) { // strip filename | |
| if(char* log_dir_pos=dir_pos(log_spec)){ | |
| strcpy(log_dir_pos, "/parser3.log"); | |
| } else { | |
| // no path, just filename | // no path, just filename |
| beside_config_path[0]='.'; beside_config_path[1]=0; | strcpy(log_spec, "./parser3.log"); |
| } | } |
| char file_spec[MAX_STRING]; | f=fopen(log_spec, "at"); |
| snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path); | |
| f=fopen(file_spec, "at"); | |
| opened=f!=0; | opened=f!=0; |
| } | } |
| // fallback to stderr | // fallback to stderr |
| Line 102 static void log(const char* fmt, va_list | Line 112 static void log(const char* fmt, va_list |
| time_t t=time(0); | time_t t=time(0); |
| if(const char* stamp=ctime(&t)) { // never saw that | if(const char* stamp=ctime(&t)) { // never saw that |
| if(size_t len=strlen(stamp)) // saw once stamp being ="" | if(size_t len=strlen(stamp)) // saw once stamp being ="" |
| fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)getpid() ); | fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)pa_get_thread_id() ); |
| } | } |
| // message | // message |
| Line 111 static void log(const char* fmt, va_list | Line 121 static void log(const char* fmt, va_list |
| size=remove_crlf(buf, buf+size); | size=remove_crlf(buf, buf+size); |
| fwrite(buf, size, 1, f); | fwrite(buf, size, 1, f); |
| if(request_info) | if(request_info_4log && request_info_4log->method) { |
| fprintf(f, " [uri=%s, method=%s, cl=%lu]", | 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); |
| request_info->uri? request_info->uri: "<unknown>", | } else |
| request_info->method? request_info->method: "<unknown>", | fputs(" [no request info]\n", f); |
| request_info->content_length); | |
| else | |
| fputs(" [no request info]", f); | |
| // newline | |
| fputs("\n", f); | |
| if(opened) | if(opened) |
| fclose(f); | fclose(f); |
| Line 128 static void log(const char* fmt, va_list | Line 132 static void log(const char* fmt, va_list |
| fflush(f); | fflush(f); |
| } | } |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | void pa_log(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); | pa_log(fmt, args); |
| va_end(args); | va_end(args); |
| } | } |
| #endif | |
| // appends to parser3.log located beside my binary if openable, to stderr otherwize | // appends to parser3.log located next to the config file if openable, to stderr otherwize |
| void SAPI::log(SAPI_Info&, const char* fmt, ...) { | void SAPI::log(SAPI_Info&, const char* fmt, ...) { |
| va_list args; | va_list args; |
| va_start(args,fmt); | va_start(args,fmt); |
| ::log(fmt, args); | pa_log(fmt, args); |
| va_end(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, ...) { | void SAPI::die(const char* fmt, ...) { |
| va_list args; | va_list args; |
| // logging first, can't log inside die_or_abort due to vsnprintf (bug #106) | // logging first, first vsnprintf |
| va_start(args,fmt); | va_start(args,fmt); |
| ::log(fmt, args); | pa_log(fmt, args); |
| va_end(args); | va_end(args); |
| // inform user, second vsnprintf | |
| va_start(args, fmt); | va_start(args, fmt); |
| die_or_abort(fmt, args, false /*write core?*/); | char message[MAX_STRING]; |
| // va_end(args); | vsnprintf(message, MAX_STRING, fmt, args); |
| } | |
| void SAPI::abort(const char* fmt, ...) { | |
| va_list args; | |
| // logging first, can't log inside die_or_abort due to vsnprintf (bug #106) | SAPI::send_error(*sapiInfo, message); |
| va_start(args,fmt); | exit(1); |
| ::log(fmt, args); | |
| va_end(args); | |
| va_start(args, fmt); | |
| die_or_abort(fmt, args, true /*write core?*/); | |
| // va_end(args); | // va_end(args); |
| } | } |
| char* SAPI::Env::get(SAPI_Info& , const char* name) { | char* SAPI::Env::get(SAPI_Info& info, const char* name) { |
| if(char *local=getenv(name)) | return info.get_env(name); |
| return pa_strdup(local); | |
| else | |
| return 0; | |
| } | } |
| const char* const *SAPI::Env::get(SAPI_Info&) { | bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) { |
| #ifdef _MSC_VER | return info.set_env(name, value); |
| 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) { | const char* const *SAPI::Env::get(SAPI_Info& info) { |
| size_t read_size=0; | return info.get_env(); |
| do { | } |
| ssize_t chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size)); | |
| if(chunk_size<=0) | |
| break; | |
| read_size+=chunk_size; | |
| } while(read_size<max_bytes); | |
| return read_size; | 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& , const char* dont_store_key, const char* dont_store_value) { | void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) { |
| if(strcasecmp(dont_store_key, HTTP_STATUS)==0) | info.add_header_attribute(dont_store_key, dont_store_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 SAPI::send_header(SAPI_Info& ) { | void SAPI::send_header(SAPI_Info& info) { |
| if(cgi) { | info.send_header(); |
| puts(""); | |
| } | |
| } | } |
| size_t SAPI::send_body(SAPI_Info& , const void *buf, size_t size) { | size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) { |
| return stdout_write(buf, size); | return info.send_body(buf, size); |
| } | } |
| static void full_file_spec(const char* file_name, char *buf, size_t buf_size) { | static const char* full_disk_path(const char* file_name = "") { |
| if(file_name) | char* result; |
| if(file_name[0]=='/' | if(file_name[0]=='/' |
| #ifdef WIN32 | #ifdef WIN32 |
| || file_name[0] && file_name[1]==':' | || file_name[0] && file_name[1]==':' |
| #endif | #endif |
| ){ | ){ |
| strncpy(buf, file_name, buf_size-1); buf[buf_size-1]=0; | result=pa_strdup(file_name); |
| } else { | } else { |
| char cwd[MAX_STRING]; | char cwd[MAX_STRING]; |
| snprintf(buf, buf_size, "%s/%s", getcwd(cwd, MAX_STRING) ? cwd : "", file_name); | result=pa_strcat(getcwd(cwd, MAX_STRING) ? cwd : "", "/", file_name); |
| } | } |
| else | |
| buf[0]=0; | |
| #ifdef WIN32 | #ifdef WIN32 |
| back_slashes_to_slashes(buf); | back_slashes_to_slashes(result); |
| #endif | #endif |
| return result; | |
| } | } |
| static void log_signal(const char* signal_name) { | static void log_signal(const char* signal_name) { |
| if(request_info) | SAPI::log(*sapiInfo, "%s received %s processing request", signal_name, request ? "while" : "before or after"); |
| 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 | #ifdef SIGPIPE |
| #define SIGPIPE_NAME "SIGPIPE" | #define SIGPIPE_NAME "SIGPIPE" |
| static const String sigpipe_name(SIGPIPE_NAME); | static const String sigpipe_name(SIGPIPE_NAME); |
| Line 299 static void SIGPIPE_handler(int /*sig*/) | Line 225 static void SIGPIPE_handler(int /*sig*/) |
| if(sigpipe && sigpipe->as_bool()) | if(sigpipe && sigpipe->as_bool()) |
| log_signal(SIGPIPE_NAME); | log_signal(SIGPIPE_NAME); |
| execution_canceled=true; | |
| if(request) | if(request) |
| request->set_skip(Request::SKIP_INTERRUPTED); | request->set_skip(Request::SKIP_INTERRUPTED); |
| } | } |
| #endif | #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 |
| const char* maybe_reconstruct_IIS_status_in_qs(const char* original) | static const char* maybe_reconstruct_IIS_status_in_qs(const char* original) { |
| { | |
| // 404;http://servername/page[?param=value...] | // 404;http://servername/page[?param=value...] |
| // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser | // ';' 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 | // and can consider that as an indication that this is IIS way to report errors |
| Line 339 const char* maybe_reconstruct_IIS_status | Line 296 const char* maybe_reconstruct_IIS_status |
| return original; | return original; |
| } | } |
| static const char* maybe_back_slashes_to_slashes(const char* original){ | |
| char *result=pa_strdup(original); | |
| back_slashes_to_slashes(result); | |
| return result; | |
| } | |
| #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s) | #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s) |
| #else | #define MAYBE_BACK_SLASHES_TO_SLASHES(s) maybe_back_slashes_to_slashes(s) |
| #else | |
| #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s | #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s |
| #endif | #define MAYBE_BACK_SLASHES_TO_SLASHES(s) s |
| #endif | |
| class RequestController { | class RequestController { |
| public: | public: |
| RequestController(Request* r){ | RequestController(Request* r){ |
| ::request=r; | request=r; |
| } | } |
| ~RequestController(){ | ~RequestController(){ |
| ::request=0; | request=0; |
| } | } |
| }; | }; |
| class RequestInfoController { | |
| public: | |
| RequestInfoController(Request_info* rinfo){ | |
| request_info_4log=rinfo; | |
| } | |
| ~RequestInfoController(){ | |
| request_info_4log=0; | |
| } | |
| }; | |
| /** | /** httpd support */ |
| main workhorse | static const String httpd_class_name("httpd"); |
| @todo | static void config_handler(SAPI_Info &info) { |
| IIS: remove trailing default-document[index.html] from $request.uri. | Request_info request_info; |
| to do that we need to consult metabase, | RequestInfoController ric(&request_info); |
| wich is tested but seems slow. | |
| */ | request_info.document_root = full_disk_path(); |
| static void real_parser_handler(const char* filespec_to_process, const char* request_method, bool header_only) { | request_info.uri = ""; |
| request_info.argv = argv_extra; | |
| // prepare to process request | |
| Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT)); | |
| // only once | |
| config_filespec = locate_config(config_filespec, parser3_filespec); | |
| // process main auto.p only | |
| r.core(config_filespec, false, String::Empty); | |
| } | |
| static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) { | |
| Request_info request_info; | |
| RequestInfoController ric(&request_info); | |
| try { | |
| if(!connection.read_header()) | |
| return; // ignore "void" connections | |
| info.populate_env(); | |
| request_info.document_root = full_disk_path(); | |
| request_info.path_translated = filespec_to_process; | |
| request_info.method = connection.method(); | |
| request_info.query_string = connection.query(); | |
| request_info.uri = request_info.strip_absolute_uri(connection.uri()); | |
| request_info.content_type = connection.content_type(); | |
| request_info.content_length = (size_t)connection.content_length(); | |
| request_info.cookie = info.get_env("HTTP_COOKIE"); | |
| request_info.mail_received = false; | |
| request_info.argv = argv_extra; | |
| // prepare to process request | |
| Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT)); | |
| // process the request | |
| r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, main_method_name, &httpd_class_name); | |
| } catch(const Exception& e) { // exception in connection handling or unhandled exception | |
| SAPI::log(info, "%s", e.comment()); | |
| const char* status = info.exception_http_status(e.type()); | |
| if(*status){ | |
| info.clear_response_headers(); | |
| SAPI::send_error(info, e.comment(), status); | |
| } | |
| } | |
| } | |
| #ifdef _MSC_VER | |
| DWORD WINAPI connection_thread(void *arg){ | |
| #else | |
| static void *connection_thread(void *arg){ | |
| #endif | |
| HTTPD_Connection &connection=*(HTTPD_Connection*)arg; | |
| SAPI_Info_HTTPD info(connection); | |
| try { | |
| connection_handler(info, connection); | |
| } catch(const Exception& e) { // exception in send_error | |
| SAPI::log(*sapiInfo, "%s", e.comment()); | |
| } | |
| delete(&connection); | |
| return 0; | |
| } | |
| static void httpd_mode() { | |
| config_handler(*sapiInfo); | |
| 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 | |
| SAPI::log(*sapiInfo, "%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 | // init libraries |
| pa_globals_init(); | pa_globals_init(); |
| if(!filespec_to_process || !*filespec_to_process) | if(httpd_host_port){ |
| httpd_mode(); | |
| } | |
| const char* request_method=getenv("REQUEST_METHOD"); | |
| if(!filespec_to_process) | |
| SAPI::die("Parser/%s", PARSER_VERSION); | SAPI::die("Parser/%s", PARSER_VERSION); |
| // Request info | // global request info |
| Request_info request_info; memset(&request_info, 0, sizeof(request_info)); | Request_info request_info; |
| char document_root_buf[MAX_STRING]; | RequestInfoController ric(&request_info); |
| request_info.path_translated = filespec_to_process; | request_info.path_translated = filespec_to_process; |
| request_info.method = request_method ? request_method : "GET"; | request_info.method = request_method ? request_method : "GET"; |
| Line 384 static void real_parser_handler(const ch | Line 493 static void real_parser_handler(const ch |
| // obligatory | // obligatory |
| const char* path_info=getenv("PATH_INFO"); | const char* path_info=getenv("PATH_INFO"); |
| if(!path_info) | if(!path_info) |
| SAPI::die("CGI: illegal call (missing PATH_INFO)"); | SAPI::die("parser3: illegal CGI call (missing PATH_INFO)"); |
| request_info.document_root = getenv("DOCUMENT_ROOT"); | request_info.document_root = getenv("DOCUMENT_ROOT"); |
| if(!request_info.document_root) { | if(!request_info.document_root) { |
| // IIS or fcgiwrap minimalistic setup | // IIS or fcgiwrap minimalistic setup |
| ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info); | ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info); |
| if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0) | if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0) |
| SAPI::die("CGI: illegal call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)"); | SAPI::die("parser3: illegal CGI call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)"); |
| char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/]; | char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/]; |
| memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0; | memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0; |
| Line 403 static void real_parser_handler(const ch | Line 512 static void real_parser_handler(const ch |
| // another obligatory | // another obligatory |
| const char* script_name = getenv("SCRIPT_NAME"); | const char* script_name = getenv("SCRIPT_NAME"); |
| if(!script_name) | if(!script_name) |
| SAPI::die("CGI: illegal call (missing SCRIPT_NAME)"); | SAPI::die("parser3: illegal CGI call (missing SCRIPT_NAME)"); |
| /* | /* |
| http://parser3/env.html?123 =OK | http://parser3/env.html?123 =OK |
| $request:uri=/env.html?123 | $request:uri=/env.html?123 |
| Line 420 static void real_parser_handler(const ch | Line 529 static void real_parser_handler(const ch |
| size_t script_name_len = strlen(script_name); | size_t script_name_len = strlen(script_name); |
| size_t uri_len = strlen(request_info.uri); | 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 | 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)"); | SAPI::die("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)"); |
| } else { // fcgiwrap minimalistic setup | } 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; | |
| if(request_info.query_string && *request_info.query_string) { | |
| char* reconstructed_uri = new(PointerFreeGC) char[strlen(path_info) + 1/*'?'*/+ strlen(request_info.query_string) + 1/*0*/]; | |
| strcpy(reconstructed_uri, path_info); | |
| strcat(reconstructed_uri, "?"); | |
| strcat(reconstructed_uri, request_info.query_string); | |
| request_info.uri = reconstructed_uri; | |
| } else | |
| request_info.uri = path_info; | |
| } | } |
| } else{ | } else{ |
| full_file_spec("", document_root_buf, sizeof(document_root_buf)); | request_info.document_root = full_disk_path(); |
| request_info.document_root = document_root_buf; | |
| request_info.uri = ""; | request_info.uri = ""; |
| } | } |
| request_info.content_type = getenv("CONTENT_TYPE"); | request_info.content_type = getenv("CONTENT_TYPE"); |
| const char* content_length = getenv("CONTENT_LENGTH"); | request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST |
| request_info.content_length = content_length ? atoi(content_length) : 0; | |
| request_info.cookie = getenv("HTTP_COOKIE"); | request_info.cookie = getenv("HTTP_COOKIE"); |
| request_info.mail_received = mail_received; | request_info.mail_received = mail_received; |
| request_info.argv = argv_all; | request_info.argv = argv_extra; |
| 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 | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s, cookies=%s, cl=%u", | 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); |
| 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 |
| // prepare to process request | // prepare to process request |
| Request request(SAPI_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS); | Request r(*sapiInfo, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS); |
| { | { |
| // get ::request ptr for signal handlers | // initing ::request ptr for signal handlers |
| RequestController rc(&request); | RequestController rc(&r); |
| 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 | // process the request |
| request.core(config_filespec_cstr, fail_on_config_read_problem, header_only); | r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0); |
| // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory | |
| // ::request cleared in RequestController desctructor to prevent signal handlers from accessing invalid memory | |
| } | } |
| // finalize libraries | // finalize libraries |
| Line 503 static void real_parser_handler(const ch | Line 564 static void real_parser_handler(const ch |
| } | } |
| #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION | #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){ | static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) { |
| try { | try { |
| real_parser_handler(filespec_to_process, request_method, header_only); | real_parser_handler(cgi); |
| } catch(const Exception& e) { | } catch(const Exception& e) { |
| return e; | return e; |
| } | } |
| Line 513 static const Exception call_real_parser_ | Line 574 static const Exception call_real_parser_ |
| return Exception(); | return Exception(); |
| } | } |
| static void call_real_parser_handler__supress_system_exception(const char* filespec_to_process, const char* request_method, bool header_only){ | static void call_real_parser_handler__supress_system_exception(bool cgi) { |
| Exception parser_exception; | Exception parser_exception; |
| LPEXCEPTION_POINTERS system_exception=0; | LPEXCEPTION_POINTERS system_exception=0; |
| __try { | __try { |
| parser_exception=call_real_parser_handler__do_PEH_return_it(filespec_to_process, request_method, header_only); | parser_exception=call_real_parser_handler__do_PEH_return_it(cgi); |
| } __except ( | } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) { |
| (system_exception=GetExceptionInformation()), | |
| 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("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); | throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); |
| Line 545 static void call_real_parser_handler__su | Line 602 static void call_real_parser_handler__su |
| static void usage(const char* program) { | static void usage(const char* program) { |
| printf( | printf( |
| "Parser/%s\n" | "Parser/%s\n" |
| "Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)\n" | "Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com)\n" |
| "Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\n" | "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>\n" |
| "\n" | "\n" |
| "Usage: %s [options] file\n" | "Usage: %s [options] [file]\n" |
| "Options are:\n" | "Options are:\n" |
| #ifdef WITH_MAILRECEIVE | #ifdef WITH_MAILRECEIVE |
| " -m Parse mail, put received letter to $mail:received\n" | " -m Parse mail, put received letter to $mail:received\n" |
| #endif | #endif |
| " -f config_file Use this config file (/path/to/auto.p)\n" | " -f config_file Use this config file (/path/to/auto.p)\n" |
| " -p [host:]port Start web server on this port\n" | |
| " -h Display usage information (this message)\n", | " -h Display usage information (this message)\n", |
| PARSER_VERSION, | PARSER_VERSION, |
| program); | program); |
| exit(EINVAL); | exit(EINVAL); |
| } | } |
| int main(int argc, char *argv[]) { | int main(int argc, char *argv[]) { |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| log("main: entry"); | log("main: entry"); |
| #endif | #endif |
| #ifdef SIGUSR1 | parser3_filespec = argc && argv[0] ? MAYBE_BACK_SLASHES_TO_SLASHES(argv[0]) : "parser3"; |
| 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); | umask(2); |
| // were we started as CGI? | // were we started as CGI? |
| cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION"); | bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION"); |
| if(!cgi) | |
| sapiInfo = new SAPI_Info(); | |
| #ifdef SIGPIPE | |
| signal(SIGPIPE, SIGPIPE_handler); | |
| #endif | |
| char *raw_filespec_to_process; | char* raw_filespec_to_process = NULL; |
| if(cgi) { | if(cgi) { |
| raw_filespec_to_process=getenv("PATH_TRANSLATED"); | raw_filespec_to_process=getenv("PATH_TRANSLATED"); |
| if(raw_filespec_to_process && !*raw_filespec_to_process) | argv_extra=argv + 1; |
| raw_filespec_to_process=0; | |
| } else { | } else { |
| int optind=1; | int optind=1; |
| while(optind < argc){ | while(optind < argc){ |
| char *carg = argv[optind]; | char* carg = argv[optind]; |
| if(carg[0] != '-') | if(carg[0] != '-') |
| break; | break; |
| Line 598 int main(int argc, char *argv[]) { | Line 651 int main(int argc, char *argv[]) { |
| char c = carg[k]; | char c = carg[k]; |
| switch (c) { | switch (c) { |
| case 'h': | case 'h': |
| usage(argv[0]); | usage(parser3_filespec); |
| break; | break; |
| case 'f': | case 'f': |
| if(optind < argc - 1){ | if(optind < argc - 1){ |
| optind++; | optind++; |
| config_filespec_cstr=argv[optind]; | config_filespec=argv[optind]; |
| } | |
| break; | |
| case 'p': | |
| if(optind < argc - 1){ | |
| optind++; | |
| httpd_host_port=argv[optind]; | |
| } | } |
| break; | break; |
| #ifdef WITH_MAILRECEIVE | #ifdef WITH_MAILRECEIVE |
| Line 612 int main(int argc, char *argv[]) { | Line 671 int main(int argc, char *argv[]) { |
| break; | break; |
| #endif | #endif |
| default: | default: |
| fprintf(stderr, "%s: invalid option '%c'\n", argv[0], c); | fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, c); |
| usage(argv[0]); | usage(parser3_filespec); |
| break; | break; |
| } | } |
| } | } |
| Line 621 int main(int argc, char *argv[]) { | Line 680 int main(int argc, char *argv[]) { |
| } | } |
| if (optind > argc - 1) { | if (optind > argc - 1) { |
| fprintf(stderr, "%s: file not specified\n", argv[0]); | if(!httpd_host_port) { |
| usage(argv[0]); | fprintf(stderr, "%s: file not specified\n", parser3_filespec); |
| usage(parser3_filespec); | |
| } | |
| } else { | |
| raw_filespec_to_process=argv[optind]; | |
| } | } |
| raw_filespec_to_process=argv[optind]; | |
| args_skip=optind; | if (httpd_host_port && mail_received) { |
| fprintf(stderr, "%s: -p and -m options should not be used together\n", parser3_filespec); | |
| usage(parser3_filespec); | |
| } | |
| argv_extra=argv + optind; | |
| } | } |
| #ifdef _MSC_VER | #ifdef _MSC_VER |
| Line 648 int main(int argc, char *argv[]) { | Line 716 int main(int argc, char *argv[]) { |
| _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR ); | _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR ); |
| #endif | #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 | try { // global try |
| REAL_PARSER_HANDLER(filespec_to_process, request_method, header_only); | if(raw_filespec_to_process && *raw_filespec_to_process){ |
| } catch(const Exception& e) { // global problem | filespec_to_process=full_disk_path(raw_filespec_to_process); |
| // 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]; | |
| 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); | |
| // unsuccessful finish | REAL_PARSER_HANDLER(cgi); |
| } catch(const Exception& e) { // exception in unhandled exception | |
| SAPI::die("%s", e.comment()); | |
| } | } |
| #ifdef PA_DEBUG_CGI_ENTRY_EXIT | #ifdef PA_DEBUG_CGI_ENTRY_EXIT |
| log("main: successful return"); | log("main: successful return"); |
| #endif | #endif |
| return SAPI_info.http_response_code < 100 ? SAPI_info.http_response_code : 0; | return sapiInfo->http_response_code < 100 ? sapiInfo->http_response_code : 0; |
| } | } |