Annotation of parser3/src/targets/apache13/mod_parser3.C, revision 1.28.2.6.2.6

1.1       parser      1: /** @file
                      2:        Parser: apache 1.3 module.
                      3: 
1.28.2.1  paf         4:        Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.17      paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.25      paf         6: */
1.1       parser      7: 
1.28.2.6.2.6! paf         8: static const char* IDENT_MOD_PARSER3_C="$Date: 2003/05/30 09:47:11 $";
1.1       parser      9: 
1.28.2.6.2.6! paf        10: #if _MSC_VER
        !            11: #pragma warning(disable:4518)
        !            12: #endif
1.18      paf        13: 
1.28.2.6.2.6! paf        14: #include "pa_config_includes.h"
1.18      paf        15: 
1.1       parser     16: #include "httpd.h"
                     17: #include "http_config.h"
                     18: #include "http_core.h"
                     19: #include "http_log.h"
                     20: #include "http_main.h"
                     21: #include "http_protocol.h"
                     22: #include "util_script.h"
                     23: 
1.28.2.6.2.6! paf        24: #include "pa_globals.h"
        !            25: 
1.18      paf        26: #include "pa_common.h"
1.1       parser     27: #include "pa_sapi.h"
                     28: #include "classes.h"
                     29: #include "pa_request.h"
                     30: #include "pa_version.h"
                     31: #include "pa_socks.h"
                     32: 
1.28.2.6.2.6! paf        33: 
1.1       parser     34: /// apache parser module configuration [httpd.conf + .htaccess-es]
                     35: struct Parser_module_config {
1.22      paf        36:     const char* parser_config_filespec; ///< filespec of site's config file
1.9       paf        37:        bool parser_status_allowed;
1.1       parser     38: };
                     39: 
                     40: /*
                     41:  * Declare ourselves so the configuration routines can find and know us.
                     42:  * We'll fill it in at the end of the module.
                     43:  */
1.9       paf        44: extern "C" module MODULE_VAR_EXPORT parser3_module;
1.1       parser     45: 
                     46: /*
                     47:  * Locate our directory configuration record for the current request.
                     48:  */
                     49: static Parser_module_config *our_dconfig(request_rec *r) {
                     50:     return (Parser_module_config *) 
1.9       paf        51:                ap_get_module_config(r->per_dir_config, &parser3_module);
1.1       parser     52: }
                     53: 
1.28.2.1  paf        54: static const char* cmd_parser_config(cmd_parms *cmd, void *mconfig, char *file_spec) {
1.1       parser     55:     Parser_module_config *cfg = (Parser_module_config *) mconfig;
                     56: 
                     57:        // remember assigned filespec into cfg
1.22      paf        58:        cfg->parser_config_filespec=file_spec;
1.1       parser     59: 
                     60:     return NULL;
                     61: }
1.28.2.1  paf        62: static const char* cmd_parser_status_allowed(cmd_parms *cmd, void *mconfig, char *file_spec) {
1.9       paf        63:        //_asm int 3;
                     64:     Parser_module_config *cfg = (Parser_module_config *) mconfig;
                     65: 
                     66:        cfg->parser_status_allowed=true;
                     67: 
                     68:     return NULL;
                     69: }
1.1       parser     70: 
                     71: 
                     72: /*--------------------------------------------------------------------------*/
                     73: /*                                                                          */
                     74: /* Now we declare our content handlers, which are invoked when the server   */
                     75: /* encounters a document which our module is supposed to have a chance to   */
                     76: /* see.  (See mod_mime's SetHandler and AddHandler directives, and the      */
                     77: /* mod_info and mod_status examples, for more details.)                     */
                     78: /*                                                                          */
                     79: /* Since content handlers are dumping data directly into the connexion      */
                     80: /* (using the r*() routines, such as rputs() and rprintf()) without         */
                     81: /* intervention by other parts of the server, they need to make             */
                     82: /* sure any accumulated HTTP headers are sent first.  This is done by       */
                     83: /* calling send_http_header().  Otherwise, no header will be sent at all,   */
                     84: /* and the output sent to the client will actually be HTTP-uncompliant.     */
                     85: /*--------------------------------------------------------------------------*/
                     86: /* 
                     87:  * Sample content handler.  All this does is display the call list that has
                     88:  * been built up so far.
                     89:  *
                     90:  * The return value instructs the caller concerning what happened and what to
                     91:  * do next:
                     92:  *  OK ("we did our thing")
                     93:  *  DECLINED ("this isn't something with which we want to get involved")
                     94:  *  HTTP_mumble ("an error status should be reported")
                     95:  */
                     96: 
                     97: 
                     98: //@{
                     99: /// SAPI func decl
                    100: 
1.28.2.6.2.6! paf       101: class SAPI_Info {
        !           102: public:
        !           103:        request_rec* r;
        !           104: };
        !           105: 
        !           106: void SAPI::log(SAPI_Info& SAPI_info, const char* fmt, ...) {
        !           107:        va_list args;
        !           108:        va_start(args,fmt);
1.1       parser    109:        char buf[MAX_STRING];
                    110:        size_t size=vsnprintf(buf, MAX_STRING, fmt, args);
                    111:        remove_crlf(buf, buf+size);
1.28.2.6.2.6! paf       112:        ap_log_rerror(0, 0, APLOG_ERR | APLOG_NOERRNO, SAPI_info.r, "%s", buf);
        !           113:        va_end(args);
1.1       parser    114: }
                    115: 
1.28.2.6  paf       116: static void die_or_abort(const char* fmt, va_list args, bool write_core) {
1.7       parser    117:        char buf[MAX_STRING];
                    118:        size_t size=vsnprintf(buf, MAX_STRING, fmt, args);
                    119:        remove_crlf(buf, buf+size);
                    120:        ap_log_error(APLOG_MARK, APLOG_EMERG, 0, "%s", buf);
                    121: 
1.27      paf       122:        // exit & try to produce core dump
1.28.2.6  paf       123:        if(write_core)
                    124:                abort();
                    125:        else
                    126:                exit(1);
                    127: }
                    128: 
                    129: void SAPI::die(const char* fmt, ...) {
1.28.2.6.2.6! paf       130:        va_list args;
1.28.2.6  paf       131:        va_start(args, fmt);
                    132:        die_or_abort(fmt, args, false/*write core?*/);
                    133:        va_end(args);
                    134: }
                    135: 
                    136: void SAPI::abort(const char* fmt, ...) {
1.28.2.6.2.6! paf       137:        va_list args;
1.28.2.6  paf       138:        va_start(args, fmt);
                    139:        die_or_abort(fmt, args, true/*write core?*/);
                    140:        va_end(args);
1.7       parser    141: }
                    142: 
1.28.2.6.2.6! paf       143: char* SAPI::get_env(SAPI_Info& SAPI_info, const char* name) {
        !           144:        const char* dont_return_me=(const char* )ap_table_get(SAPI_info.r->subprocess_env, name);
        !           145:        return dont_return_me?pa_strdup(dont_return_me):0;
1.1       parser    146: }
                    147: 
1.21      paf       148: #ifndef DOXYGEN
                    149: struct SAPI_environment_append_info {
1.28.2.6.2.6! paf       150:        const char** cur;
1.21      paf       151: };
                    152: #endif
1.28.2.6.2.6! paf       153: static const char* mk_env_pair(const char* key, const char* value) {
1.28.2.6.2.4  paf       154:        char *result=new(PointerFreeGC) char[strlen(key)+1/*=*/+strlen(value)+1/*0*/];
1.21      paf       155:        strcpy(result, key); strcat(result, "="); strcat(result, value);
                    156:        return result;
                    157: }
1.28.2.1  paf       158: static int SAPI_environment_append(void *d, const char* k, const char* val) {
1.21      paf       159:        if( k && val ) {
                    160:                SAPI_environment_append_info& info=
                    161:                        *static_cast<SAPI_environment_append_info *>(d);
1.28.2.6.2.6! paf       162:                *info.cur++=mk_env_pair(k, val);
1.21      paf       163:        }
                    164:        return 1/*true*/;
                    165: }
1.28.2.6.2.6! paf       166: const char* const* SAPI::environment(SAPI_Info& SAPI_info) {
        !           167:        const table *t=SAPI_info.r->subprocess_env;
        !           168:        const char** result=new const char*[ap_table_elts(t)->nelts+1/*0*/];
        !           169:        SAPI_environment_append_info info={result};
1.21      paf       170:        ap_table_do(SAPI_environment_append, &info, t, 0); *info.cur=0; // mark EOE
                    171:        return result;
                    172: }
                    173: 
1.28.2.6.2.6! paf       174: size_t SAPI::read_post(SAPI_Info& SAPI_info, char *buf, size_t max_bytes) {
        !           175: /*    ap_log_error(APLOG_MARK, APLOG_DEBUG, SAPI_info.r->server, 
1.1       parser    176:                "mod_parser3: SAPI::read_post(max=%u)", max_bytes);
                    177: */
                    178:        int retval;
1.28.2.6.2.6! paf       179:        if((retval = ap_setup_client_block(SAPI_info.r, REQUEST_CHUNKED_ERROR)))
1.1       parser    180:                return 0;
1.28.2.6.2.6! paf       181:        if(!ap_should_client_block(SAPI_info.r))
1.1       parser    182:                return 0;
                    183: 
                    184:        uint total_read_bytes=0;
                    185:        void (*handler)(int)=signal(SIGPIPE, SIG_IGN);
                    186:        while (total_read_bytes<max_bytes) {
1.28.2.6.2.6! paf       187:                ap_hard_timeout("Read POST information", SAPI_info.r); /* start timeout timer */
1.1       parser    188:                uint read_bytes=
1.28.2.6.2.6! paf       189:                        ap_get_client_block(SAPI_info.r, buf+total_read_bytes, max_bytes-total_read_bytes);
        !           190:                ap_reset_timeout(SAPI_info.r);
1.1       parser    191:                if (read_bytes<=0)
                    192:                        break;
                    193:                total_read_bytes+=read_bytes;
                    194:        }
                    195:        signal(SIGPIPE, handler);       
                    196:        return total_read_bytes;
                    197: }
                    198: 
1.15      paf       199: /// @test location provide with protocol. think about internal redirects
1.28.2.6.2.6! paf       200: void SAPI::add_header_attribute(SAPI_Info& SAPI_info,
        !           201:                                const char* dont_store_key, const char* dont_store_value) {
        !           202:        if(strcasecmp(dont_store_key, "location")==0) 
        !           203:                SAPI_info.r->status=302;
1.1       parser    204: 
1.28.2.6.2.6! paf       205:        if(strcasecmp(dont_store_key, "content-type")==0) {
1.1       parser    206:                /* r->content_type, *not* r->headers_out("Content-type").  If you don't
                    207:                 * set it, it will be filled in with the server's default type (typically
                    208:                 * "text/plain").  You *must* also ensure that r->content_type is lower
                    209:                 * case.
                    210:                 */
1.28.2.6.2.6! paf       211:                SAPI_info.r->content_type = ap_pstrdup(SAPI_info.r->pool, dont_store_value);
        !           212:        } else if(strcasecmp(dont_store_key, "status")==0) 
        !           213:                SAPI_info.r->status=atoi(dont_store_value);
1.1       parser    214:        else
1.28.2.6.2.6! paf       215:                ap_table_addn(SAPI_info.r->headers_out, 
        !           216:                        ap_pstrdup(SAPI_info.r->pool, dont_store_key), 
        !           217:                        ap_pstrdup(SAPI_info.r->pool, dont_store_value));
1.1       parser    218: }
                    219: 
1.28.2.6.2.6! paf       220: void SAPI::send_header(SAPI_Info& SAPI_info) {
        !           221:        ap_hard_timeout("Send header", SAPI_info.r);
        !           222:        ap_send_http_header(SAPI_info.r);
        !           223:        ap_kill_timeout(SAPI_info.r);
1.1       parser    224: }
                    225: 
1.28.2.6.2.6! paf       226: void SAPI::send_body(SAPI_Info& SAPI_info, const void *buf, size_t size) {
        !           227:        ap_hard_timeout("Send body", SAPI_info.r);
        !           228:        ap_rwrite(buf, size, SAPI_info.r);
        !           229:        ap_kill_timeout(SAPI_info.r);
1.1       parser    230: }
                    231: 
                    232: //@}
                    233: 
                    234: /**
                    235:        main workhorse
                    236:        
                    237:        @todo intelligent cache-control
                    238: */
1.28.2.6.2.6! paf       239: static void real_parser_handler(SAPI_Info& SAPI_info) {
        !           240:        ap_add_common_vars(SAPI_info.r);
        !           241:        ap_add_cgi_vars(SAPI_info.r);
1.3       parser    242: 
                    243:        // Request info
1.28.2.6.2.6! paf       244:        Request_info request_info;  memset(&request_info, 0, sizeof(request_info));
1.28.2.6.2.5  paf       245: 
1.28.2.6.2.6! paf       246:        request_info.document_root=SAPI::get_env(SAPI_info, "DOCUMENT_ROOT");
        !           247:        request_info.path_translated=SAPI_info.r->filename;
        !           248:        request_info.method=SAPI_info.r->method;
        !           249:        request_info.query_string=SAPI_info.r->args;
        !           250:        request_info.uri=SAPI::get_env(SAPI_info, "REQUEST_URI");
        !           251:        request_info.content_type=SAPI::get_env(SAPI_info, "CONTENT_TYPE");
        !           252:        const char* content_length=SAPI::get_env(SAPI_info, "CONTENT_LENGTH");
1.3       parser    253:        request_info.content_length=content_length?atoi(content_length):0;
1.28.2.6.2.6! paf       254:        request_info.cookie=SAPI::get_env(SAPI_info, "HTTP_COOKIE");
1.24      paf       255:        request_info.mail_received=false;
1.3       parser    256: 
1.9       paf       257:     // config
1.28.2.6.2.6! paf       258:        Parser_module_config *dcfg=our_dconfig(SAPI_info.r);
1.9       paf       259: 
1.3       parser    260:        //_asm int 3;
                    261:        // prepare to process request
1.28.2.6.2.6! paf       262:        Request request(
        !           263:                SAPI_info,
1.3       parser    264:                request_info,
1.28.2.6.2.6! paf       265:                String::Language(String::L_HTML|String::L_OPTIMIZE_BIT),
1.9       paf       266:                dcfg->parser_status_allowed
1.3       parser    267:                );
                    268:        
                    269:        // process the request
                    270:        request.core(
1.22      paf       271:                dcfg->parser_config_filespec, true, // /path/to/config
1.28.2.6.2.6! paf       272:                SAPI_info.r->header_only!=0);
1.3       parser    273: }
                    274: 
1.28.2.6.2.6! paf       275: void call_real_parser_handler__do_SEH(SAPI_Info& SAPI_info) {
1.5       parser    276: #if _MSC_VER & !defined(_DEBUG)
1.3       parser    277:        LPEXCEPTION_POINTERS system_exception=0;
                    278:        __try {
                    279: #endif
1.28.2.6.2.6! paf       280:                real_parser_handler(SAPI_info);
1.3       parser    281:                
1.5       parser    282: #if _MSC_VER & !defined(_DEBUG)
1.3       parser    283:        } __except (
                    284:                (system_exception=GetExceptionInformation()), 
                    285:                EXCEPTION_EXECUTE_HANDLER) {
                    286:                
                    287:                if(system_exception)
                    288:                        if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.19      paf       289:                                throw Exception(0,
1.5       parser    290:                                        0,
                    291:                                        "Exception 0x%08X at 0x%08X", er->ExceptionCode,  er->ExceptionAddress);
1.3       parser    292:                        else
1.19      paf       293:                                throw Exception(0, 0, "Exception <no exception record>");
1.3       parser    294:                        else
1.19      paf       295:                                throw Exception(0, 0, "Exception <no exception information>");
1.3       parser    296:        }
                    297: #endif
                    298: }
                    299: 
1.15      paf       300: /// @test r->finfo.st_mode check seems to work only on win32
1.1       parser    301: static int parser_handler(request_rec *r) {
1.28.2.6.2.6! paf       302:        // SAPI info
        !           303:        SAPI_Info SAPI_info; SAPI_info.r=r;
        !           304: 
1.6       parser    305:        //_asm int 3;
1.28.2.6.2.6! paf       306:        if(r->finfo.st_mode == 0) 
1.1       parser    307:                return NOT_FOUND;
                    308:        
                    309:        /* A flag which modules can set, to indicate that the data being
                    310:         * returned is volatile, and clients should be told not to cache it.
                    311:         */
1.14      paf       312: //     r->no_cache=1;
1.1       parser    313: 
1.3       parser    314:        try { // global try
1.28.2.6.2.6! paf       315:                call_real_parser_handler__do_SEH(SAPI_info);
1.1       parser    316:                // successful finish
1.3       parser    317:        } catch(const Exception& e) { // global problem 
1.1       parser    318:                // don't allocate anything on pool here:
                    319:                //   possible pool' exception not catch-ed now
                    320:                //   and there could be out-of-memory exception
1.28.2.1  paf       321:                const char* body=e.comment();
1.1       parser    322:                // log it
1.28.2.6.2.6! paf       323:                SAPI::log(SAPI_info, "exception in request exception handler: %s", body);
1.1       parser    324: 
                    325:                //
                    326:                int content_length=strlen(body);
                    327: 
                    328:                // prepare header
1.28.2.6.2.6! paf       329:                SAPI::add_header_attribute(SAPI_info, "content-type", "text/plain");
1.1       parser    330:                char content_length_cstr[MAX_NUMBER];
                    331:                snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
1.28.2.6.2.6! paf       332:                SAPI::add_header_attribute(SAPI_info, "content-length", content_length_cstr);
1.1       parser    333: 
                    334:                // send header
1.28.2.6.2.6! paf       335:                SAPI::send_header(SAPI_info);
1.1       parser    336: 
                    337:                // send body
                    338:                if(!r->header_only)
1.28.2.6.2.6! paf       339:                        SAPI::send_body(SAPI_info, body, content_length);
1.1       parser    340: 
                    341:                // unsuccessful finish
                    342:        }
                    343: 
                    344:     /*
                    345:      * We did what we wanted to do, so tell the rest of the server we
                    346:      * succeeded.
                    347:      */
                    348:     return OK;
                    349: }
                    350: 
                    351: /*--------------------------------------------------------------------------*/
                    352: /*                                                                          */
                    353: /* Now let's declare routines for each of the callback phase in order.      */
                    354: /* (That's the order in which they're listed in the callback list, *not     */
                    355: /* the order in which the server calls them!  See the command_rec           */
                    356: /* declaration near the bottom of this file.)  Note that these may be       */
                    357: /* called for situations that don't relate primarily to our function - in   */
                    358: /* other words, the fixup handler shouldn't assume that the request has     */
                    359: /* to do with "example" stuff.                                              */
                    360: /*                                                                          */
                    361: /* With the exception of the content handler, all of our routines will be   */
                    362: /* called for each request, unless an earlier handler from another module   */
                    363: /* aborted the sequence.                                                    */
                    364: /*                                                                          */
                    365: /* Handlers that are declared as "int" can return the following:            */
                    366: /*                                                                          */
                    367: /*  OK          Handler accepted the request and did its thing with it.     */
                    368: /*  DECLINED    Handler took no action.                                     */
                    369: /*  HTTP_mumble Handler looked at request and found it wanting.             */
                    370: /*                                                                          */
                    371: /* What the server does after calling a module handler depends upon the     */
                    372: /* handler's return value.  In all cases, if the handler returns            */
                    373: /* DECLINED, the server will continue to the next module with an handler    */
                    374: /* for the current phase.  However, if the handler return a non-OK,         */
                    375: /* non-DECLINED status, the server aborts the request right there.  If      */
                    376: /* the handler returns OK, the server's next action is phase-specific;      */
                    377: /* see the individual handler comments below for details.                   */
                    378: /*                                                                          */
                    379: /*--------------------------------------------------------------------------*/
                    380: /* 
                    381:  * This function is called during server initialisation.  Any information
                    382:  * that needs to be recorded must be in static cells, since there's no
                    383:  * configuration record.
                    384:  *
                    385:  * There is no return value.
                    386:  */
                    387: 
                    388: static void setup_module_cells() {
                    389:        static bool  globals_inited=false;
                    390:        if(globals_inited)
                    391:                return;
                    392:        globals_inited=true;
1.10      paf       393: 
1.3       parser    394:        /// no trying to __try here [yet]
                    395:        try {
1.1       parser    396:                // init socks
1.28.2.6.2.1  paf       397:                pa_init_socks();
1.1       parser    398: 
                    399:                // init global variables
1.28.2.6.2.1  paf       400:                pa_globals_init();
1.3       parser    401:        } catch(const Exception& e) { // global problem 
1.28.2.6  paf       402:                SAPI::abort("setup_module_cells failed: %s", e.comment());
1.1       parser    403:        }
                    404: }
                    405: 
                    406: static void parser_server_init(server_rec *s, pool *p) {
                    407: #if MODULE_MAGIC_NUMBER >= 19980527
                    408:        ap_add_version_component("Parser/"PARSER_VERSION);
                    409: #endif 
                    410: 
                    411:     /*
                    412:      * Set up any module cells that ought to be initialised.
                    413:      */
                    414:     setup_module_cells();
                    415: }
                    416: 
                    417: /*
                    418:  * This function gets called to create a per-directory configuration
                    419:  * record.  This will be called for the "default" server environment, and for
                    420:  * each directory for which the parser finds any of our directives applicable.
                    421:  * If a directory doesn't have any of our directives involved (i.e., they
                    422:  * aren't in the .htaccess file, or a <Location>, <Directory>, or related
                    423:  * block), this routine will *not* be called - the configuration for the
                    424:  * closest ancestor is used.
                    425:  *
                    426:  * The return value is a pointer to the created module-specific
                    427:  * structure.
                    428:  */
                    429: static void *parser_create_dir_config(pool *p, char *dirspec) {
1.13      paf       430:        //_asm int 3;
1.1       parser    431:        /*
                    432:      * Allocate the space for our record from the pool supplied.
                    433:      */
                    434:     Parser_module_config *cfg=
                    435:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    436:     /*
                    437:      * Now fill in the defaults.  If there are any `parent' configuration
                    438:      * records, they'll get merged as part of a separate callback.
                    439:      */
1.9       paf       440: 
1.1       parser    441:     return (void *) cfg;
                    442: }
                    443: 
                    444: /*
                    445:  * This function gets called to merge two per-directory configuration
                    446:  * records.  This is typically done to cope with things like .htaccess files
                    447:  * or <Location> directives for directories that are beneath one for which a
                    448:  * configuration record was already created.  The routine has the
                    449:  * responsibility of creating a new record and merging the contents of the
                    450:  * other two into it appropriately.  If the module doesn't declare a merge
                    451:  * routine, the record for the closest ancestor location (that has one) is
                    452:  * used exclusively.
                    453:  *
                    454:  * The routine MUST NOT modify any of its arguments!
                    455:  *
                    456:  * The return value is a pointer to the created module-specific structure
                    457:  * containing the merged values.
1.13      paf       458: 
                    459:    20011126 paf: noticed, that this is called even on virtual root merge with something "parent",
                    460:    while thought that that is part of merge_server...
                    461: 
1.1       parser    462:  */
                    463: static void *parser_merge_dir_config(pool *p, void *parent_conf,
                    464:                                       void *newloc_conf) {
1.13      paf       465:        //_asm int 3;
1.1       parser    466:     Parser_module_config *merged_config = 
                    467:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    468:     Parser_module_config *pconf = (Parser_module_config *) parent_conf;
                    469:     Parser_module_config *nconf = (Parser_module_config *) newloc_conf;
                    470: 
1.22      paf       471:     merged_config->parser_config_filespec = ap_pstrdup(p, nconf->parser_config_filespec?
                    472:                nconf->parser_config_filespec:pconf->parser_config_filespec);
1.9       paf       473:        merged_config->parser_status_allowed=
                    474:                pconf->parser_status_allowed ||
                    475:                nconf->parser_status_allowed;
1.13      paf       476: 
                    477:        /*
1.1       parser    478:      * Some things get copied directly from the more-specific record, rather
                    479:      * than getting merged.
                    480:      */
                    481: 
                    482:     return (void *) merged_config;
                    483: }
                    484: 
                    485: /*
                    486:  * This function gets called to create a per-server configuration
                    487:  * record.  It will always be called for the "default" server.
                    488:  *
                    489:  * The return value is a pointer to the created module-specific
                    490:  * structure.
                    491:  */
                    492: static void *parser_create_server_config(pool *p, server_rec *s) {
1.13      paf       493:        //_asm int 3;
1.1       parser    494:     /*
1.13      paf       495:      * As with the parser_create_dir_config() routine, we allocate and fill
1.1       parser    496:      * in an empty record.
                    497:      */
                    498:     Parser_module_config *cfg=
                    499:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    500: 
                    501:     return (void *) cfg;
                    502: }
                    503: 
                    504: /*
                    505:  * This function gets called to merge two per-server configuration
                    506:  * records.  This is typically done to cope with things like virtual hosts and
                    507:  * the default server configuration  The routine has the responsibility of
                    508:  * creating a new record and merging the contents of the other two into it
                    509:  * appropriately.  If the module doesn't declare a merge routine, the more
                    510:  * specific existing record is used exclusively.
                    511:  *
                    512:  * The routine MUST NOT modify any of its arguments!
                    513:  *
                    514:  * The return value is a pointer to the created module-specific structure
                    515:  * containing the merged values.
                    516:  */
                    517: static void *parser_merge_server_config(pool *p, void *server1_conf,
                    518:                                          void *server2_conf)
                    519: {
1.13      paf       520:        //_asm int 3;
1.1       parser    521: 
                    522:     Parser_module_config *merged_config = 
                    523:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    524:     Parser_module_config *s1conf = (Parser_module_config *) server1_conf;
                    525:     Parser_module_config *s2conf = (Parser_module_config *) server2_conf;
                    526: 
                    527:     /*
                    528:      * Our inheritance rules are our own, and part of our module's semantics.
                    529:      * Basically, just note whence we came.
                    530:      */
1.22      paf       531:     merged_config->parser_config_filespec = ap_pstrdup(p, s2conf->parser_config_filespec?
                    532:                s2conf->parser_config_filespec:s1conf->parser_config_filespec);
1.9       paf       533:        merged_config->parser_status_allowed=
                    534:                s1conf->parser_status_allowed || 
                    535:                s2conf->parser_status_allowed;
1.1       parser    536:  
                    537:        return (void *) merged_config;
                    538: }
                    539: 
                    540: /*
                    541:  * This routine gives our module an opportunity to translate the URI into an
                    542:  * actual filename.  If we don't do anything special, the server's default
                    543:  * rules (Alias directives and the like) will continue to be followed.
                    544:  *
                    545:  * The return value is OK, DECLINED, or HTTP_mumble.  If we return OK, no
                    546:  * further modules are called for this phase.
                    547:  */
                    548: static int parser_translate_handler(request_rec *r) {
                    549:     Parser_module_config *cfg=our_dconfig(r);
                    550:     return DECLINED;
                    551: }
                    552: 
                    553: /*
                    554:  * This routine is called to check the authentication information sent with
                    555:  * the request (such as looking up the user in a database and verifying that
                    556:  * the [encrypted] password sent matches the one in the database).
                    557:  *
                    558:  * The return value is OK, DECLINED, or some HTTP_mumble error (typically
                    559:  * HTTP_UNAUTHORIZED).  If we return OK, no other modules are given a chance
                    560:  * at the request during this phase.
                    561:  */
                    562: static int parser_check_user_id(request_rec *r) {
                    563:     Parser_module_config *cfg=our_dconfig(r);
                    564:     return DECLINED;
                    565: }
                    566: 
                    567: /*
                    568:  * This routine is called to check to see if the resource being requested
                    569:  * requires authorisation.
                    570:  *
                    571:  * The return value is OK, DECLINED, or HTTP_mumble.  If we return OK, no
                    572:  * other modules are called during this phase.
                    573:  *
                    574:  * If *all* modules return DECLINED, the request is aborted with a server
                    575:  * error.
                    576:  */
                    577: static int parser_auth_checker(request_rec *r) {
                    578:     Parser_module_config *cfg=our_dconfig(r);
                    579:     return DECLINED;
                    580: }
                    581: 
                    582: /*
                    583:  * This routine is called to check for any module-specific restrictions placed
                    584:  * upon the requested resource.  (See the mod_access module for an example.)
                    585:  *
                    586:  * The return value is OK, DECLINED, or HTTP_mumble.  All modules with an
                    587:  * handler for this phase are called regardless of whether their predecessors
                    588:  * return OK or DECLINED.  The first one to return any other status, however,
                    589:  * will abort the sequence (and the request) as usual.
                    590:  */
                    591: static int parser_access_checker(request_rec *r) {
                    592: 
                    593:     Parser_module_config *cfg=our_dconfig(r);
                    594:     return DECLINED;
                    595: }
                    596: 
                    597: /*--------------------------------------------------------------------------*/
                    598: /*                                                                          */
                    599: /* All of the routines have been declared now.  Here's the list of          */
                    600: /* directives specific to our module, and information about where they      */
                    601: /* may appear and how the command parser should pass them to us for         */
                    602: /* processing.  Note that care must be taken to ensure that there are NO    */
                    603: /* collisions of directive names between modules.                           */
                    604: /*                                                                          */
                    605: /*--------------------------------------------------------------------------*/
                    606: /* 
                    607:  * List of directives specific to our module.
                    608:  */
                    609: static const command_rec parser_cmds[] =
                    610: {
                    611:     {
1.22      paf       612:         "ParserConfig",              /* directive name */
1.28.2.1  paf       613:         (const char* (*)(void))((void *)cmd_parser_config), // config action routine
1.22      paf       614:         (void*)0,                   /* argument to include in call */
1.1       parser    615:         (int)(OR_OPTIONS),             /* where available */
                    616:         TAKE1,                /* arguments */
1.23      paf       617:         "Parser config filespec" // directive description
1.1       parser    618:     },
1.9       paf       619:        {
                    620:                "ParserStatusAllowed",              /* directive name */
1.28.2.1  paf       621:         (const char* (*)(void))((void *)cmd_parser_status_allowed), // config action routine
1.9       paf       622:         (void*)0,                   /* argument to include in call */
                    623:         (int)(ACCESS_CONF),             /* where available */
                    624:         NO_ARGS,                /* arguments */
                    625:         "Parser status class can be used" // directive description
                    626:        },
1.1       parser    627:     {NULL}
                    628: };
                    629: 
                    630: /*--------------------------------------------------------------------------*/
                    631: /*                                                                          */
                    632: /* Now the list of content handlers available from this module.             */
                    633: /*                                                                          */
                    634: /*--------------------------------------------------------------------------*/
                    635: /* 
                    636:  * List of content handlers our module supplies.  Each handler is defined by
                    637:  * two parts: a name by which it can be referenced (such as by
                    638:  * {Add,Set}Handler), and the actual routine name.  The list is terminated by
                    639:  * a NULL block, since it can be of variable length.
                    640:  *
                    641:  * Note that content-handlers are invoked on a most-specific to least-specific
                    642:  * basis; that is, a handler that is declared for "text/plain" will be
                    643:  * invoked before one that was declared for "text / *".  Note also that
                    644:  * if a content-handler returns anything except DECLINED, no other
                    645:  * content-handlers will be called.
                    646:  */
                    647: static const handler_rec parser_handlers[] =
                    648: {
1.9       paf       649:     {"parser3-handler", parser_handler},
1.1       parser    650:     {NULL}
                    651: };
                    652: 
                    653: /*--------------------------------------------------------------------------*/
                    654: /*                                                                          */
                    655: /* Finally, the list of callback routines and data structures that          */
                    656: /* provide the hooks into our module from the other parts of the server.    */
                    657: /*                                                                          */
                    658: /*--------------------------------------------------------------------------*/
                    659: /* 
                    660:  * Module definition for configuration.  If a particular callback is not
                    661:  * needed, replace its routine name below with the word NULL.
                    662:  *
                    663:  * The number in brackets indicates the order in which the routine is called
                    664:  * during request processing.  Note that not all routines are necessarily
                    665:  * called (such as if a resource doesn't have access restrictions).
                    666:  */
1.9       paf       667: module MODULE_VAR_EXPORT parser3_module =
1.1       parser    668: {
                    669:     STANDARD_MODULE_STUFF,
                    670:     parser_server_init,          /* module initializer */
                    671:     parser_create_dir_config,    /* per-directory config creator */
                    672:     parser_merge_dir_config,     /* dir config merger */
                    673:     parser_create_server_config, /* server config creator */
                    674:     parser_merge_server_config,  /* server config merger */
                    675:     parser_cmds,                 /* command table */
                    676:     parser_handlers,             /* [9] list of handlers */
                    677:     parser_translate_handler,    /* [2] filename-to-URI translation */
                    678:     parser_check_user_id,        /* [5] check/validate user_id */
                    679:     parser_auth_checker,         /* [6] check user_id is valid *here* */
                    680:     parser_access_checker,       /* [4] check access by host address */
                    681:     0,                           /* [7] MIME type checker/setter */
                    682:     0,                           /* [8] fixups */
                    683:     0                            /* [10] logger */
                    684: };
                    685: 
                    686: #if defined(_MSC_VER)
1.20      paf       687: #      define APACHE_WIN32_SRC "/parser3project/win32/apache13/src"
1.1       parser    688: #      ifdef _DEBUG
                    689: #              pragma comment(lib, APACHE_WIN32_SRC "/CoreD/ApacheCore.lib")
                    690: #      else
                    691: #              pragma comment(lib, APACHE_WIN32_SRC "/CoreR/ApacheCore.lib")
                    692: #      endif
                    693: #endif

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