Annotation of parser3/src/targets/apache13/mod_parser3.C, revision 1.28

1.1       parser      1: /** @file
                      2:        Parser: apache 1.3 module.
                      3: 
1.28    ! 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    ! paf         8: static const char* IDENT_MOD_PARSER3_C="$Date: 2002/12/09 13:02:36 $";
1.1       parser      9: 
1.18      paf        10: #include "pa_config_includes.h"
                     11: 
                     12: #if _MSC_VER
                     13: #      include <new.h>
                     14: #endif
                     15: 
                     16: #include "pa_globals.h"
                     17: 
1.1       parser     18: #include "httpd.h"
                     19: #include "http_config.h"
                     20: #include "http_core.h"
                     21: #include "http_log.h"
                     22: #include "http_main.h"
                     23: #include "http_protocol.h"
                     24: #include "util_script.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: 
                     33: /// apache parser module configuration [httpd.conf + .htaccess-es]
                     34: struct Parser_module_config {
1.22      paf        35:     const char* parser_config_filespec; ///< filespec of site's config file
1.9       paf        36:        bool parser_status_allowed;
1.1       parser     37: };
                     38: 
                     39: /*
                     40:  * Declare ourselves so the configuration routines can find and know us.
                     41:  * We'll fill it in at the end of the module.
                     42:  */
1.9       paf        43: extern "C" module MODULE_VAR_EXPORT parser3_module;
1.1       parser     44: 
                     45: /*
                     46:  * Locate our directory configuration record for the current request.
                     47:  */
                     48: static Parser_module_config *our_dconfig(request_rec *r) {
                     49:     return (Parser_module_config *) 
1.9       paf        50:                ap_get_module_config(r->per_dir_config, &parser3_module);
1.1       parser     51: }
                     52: 
                     53: static const char *cmd_parser_config(cmd_parms *cmd, void *mconfig, char *file_spec) {
                     54:     Parser_module_config *cfg = (Parser_module_config *) mconfig;
                     55: 
                     56:        // remember assigned filespec into cfg
1.22      paf        57:        cfg->parser_config_filespec=file_spec;
1.1       parser     58: 
                     59:     return NULL;
                     60: }
1.9       paf        61: static const char *cmd_parser_status_allowed(cmd_parms *cmd, void *mconfig, char *file_spec) {
                     62:        //_asm int 3;
                     63:     Parser_module_config *cfg = (Parser_module_config *) mconfig;
                     64: 
                     65:        cfg->parser_status_allowed=true;
                     66: 
                     67:     return NULL;
                     68: }
1.1       parser     69: 
                     70: 
                     71: /*--------------------------------------------------------------------------*/
                     72: /*                                                                          */
                     73: /* Now we declare our content handlers, which are invoked when the server   */
                     74: /* encounters a document which our module is supposed to have a chance to   */
                     75: /* see.  (See mod_mime's SetHandler and AddHandler directives, and the      */
                     76: /* mod_info and mod_status examples, for more details.)                     */
                     77: /*                                                                          */
                     78: /* Since content handlers are dumping data directly into the connexion      */
                     79: /* (using the r*() routines, such as rputs() and rprintf()) without         */
                     80: /* intervention by other parts of the server, they need to make             */
                     81: /* sure any accumulated HTTP headers are sent first.  This is done by       */
                     82: /* calling send_http_header().  Otherwise, no header will be sent at all,   */
                     83: /* and the output sent to the client will actually be HTTP-uncompliant.     */
                     84: /*--------------------------------------------------------------------------*/
                     85: /* 
                     86:  * Sample content handler.  All this does is display the call list that has
                     87:  * been built up so far.
                     88:  *
                     89:  * The return value instructs the caller concerning what happened and what to
                     90:  * do next:
                     91:  *  OK ("we did our thing")
                     92:  *  DECLINED ("this isn't something with which we want to get involved")
                     93:  *  HTTP_mumble ("an error status should be reported")
                     94:  */
                     95: 
                     96: 
                     97: //@{
                     98: /// SAPI func decl
                     99: void SAPI::log(Pool& pool, const char *fmt, ...) {
1.4       parser    100:        request_rec *r=static_cast<request_rec *>(pool.get_context());
1.1       parser    101: 
                    102:     va_list args;
                    103:     va_start(args,fmt);
                    104:        char buf[MAX_STRING];
                    105:        size_t size=vsnprintf(buf, MAX_STRING, fmt, args);
                    106:        remove_crlf(buf, buf+size);
                    107:        ap_log_rerror(0, 0, APLOG_ERR | APLOG_NOERRNO, r, "%s", buf);
                    108:     va_end(args);
                    109: }
                    110: 
1.7       parser    111: void SAPI::die(const char *fmt, ...) {
                    112:     va_list args;
                    113:     va_start(args,fmt);
                    114:        char buf[MAX_STRING];
                    115:        size_t size=vsnprintf(buf, MAX_STRING, fmt, args);
                    116:        remove_crlf(buf, buf+size);
                    117:        ap_log_error(APLOG_MARK, APLOG_EMERG, 0, "%s", buf);
                    118:     va_end(args);
                    119: 
1.27      paf       120:        // exit & try to produce core dump
                    121:        abort();
1.7       parser    122: }
                    123: 
1.1       parser    124: const char *SAPI::get_env(Pool& pool, const char *name) {
1.4       parser    125:        request_rec *r=static_cast<request_rec *>(pool.get_context());
1.1       parser    126:        return (const char *)ap_table_get(r->subprocess_env, name);
                    127: }
                    128: 
1.21      paf       129: #ifndef DOXYGEN
                    130: struct SAPI_environment_append_info {
                    131:        Pool *pool;
                    132:        const char **cur;
                    133: };
                    134: #endif
                    135: static const char *mk_env_pair(Pool& pool, const char *key, const char *value) {
                    136:        char *result=(char *)pool.malloc(strlen(key)+1/*=*/+strlen(value)+1/*0*/);
                    137:        strcpy(result, key); strcat(result, "="); strcat(result, value);
                    138:        return result;
                    139: }
                    140: static int SAPI_environment_append(void *d, const char *k, const char *val) {
                    141:        if( k && val ) {
                    142:                SAPI_environment_append_info& info=
                    143:                        *static_cast<SAPI_environment_append_info *>(d);
                    144:                *info.cur++=mk_env_pair(*info.pool, k, val);
                    145:        }
                    146:        return 1/*true*/;
                    147: }
                    148: const char *const *SAPI::environment(Pool& pool) {
                    149:        request_rec *r=static_cast<request_rec *>(pool.get_context());
                    150:        const table *t=r->subprocess_env;
                    151:        const char **result=
                    152:                (const char **)pool.malloc(sizeof(char *)*(ap_table_elts(t)->nelts+1/*0*/));
                    153:        SAPI_environment_append_info info={&pool, result};
                    154:        ap_table_do(SAPI_environment_append, &info, t, 0); *info.cur=0; // mark EOE
                    155:        return result;
                    156: }
                    157: 
1.1       parser    158: size_t SAPI::read_post(Pool& pool, char *buf, size_t max_bytes) {
1.4       parser    159:        request_rec *r=static_cast<request_rec *>(pool.get_context());
1.1       parser    160: 
                    161: /*    ap_log_error(APLOG_MARK, APLOG_DEBUG, r->server, 
                    162:                "mod_parser3: SAPI::read_post(max=%u)", max_bytes);
                    163: */
                    164:        int retval;
                    165:     if((retval = ap_setup_client_block(r, REQUEST_CHUNKED_ERROR)))
                    166:                return 0;
                    167:        if(!ap_should_client_block(r))
                    168:                return 0;
                    169: 
                    170:        uint total_read_bytes=0;
                    171:        void (*handler)(int)=signal(SIGPIPE, SIG_IGN);
                    172:        while (total_read_bytes<max_bytes) {
                    173:                ap_hard_timeout("Read POST information", r); /* start timeout timer */
                    174:                uint read_bytes=
                    175:                        ap_get_client_block(r, buf+total_read_bytes, max_bytes-total_read_bytes);
                    176:                ap_reset_timeout(r);
                    177:                if (read_bytes<=0)
                    178:                        break;
                    179:                total_read_bytes+=read_bytes;
                    180:        }
                    181:        signal(SIGPIPE, handler);       
                    182:        return total_read_bytes;
                    183: }
                    184: 
1.15      paf       185: /// @test location provide with protocol. think about internal redirects
1.1       parser    186: void SAPI::add_header_attribute(Pool& pool, const char *key, const char *value) {
1.4       parser    187:        request_rec *r=static_cast<request_rec *>(pool.get_context());
1.1       parser    188: 
                    189:        if(strcasecmp(key, "location")==0) 
                    190:                r->status=302;
                    191: 
                    192:        if(strcasecmp(key, "content-type")==0) {
                    193:                /* r->content_type, *not* r->headers_out("Content-type").  If you don't
                    194:                 * set it, it will be filled in with the server's default type (typically
                    195:                 * "text/plain").  You *must* also ensure that r->content_type is lower
                    196:                 * case.
                    197:                 */
                    198:                r->content_type = value;
                    199:        } else if(strcasecmp(key, "status")==0) 
                    200:                r->status=atoi(value);
                    201:        else
                    202:                ap_table_addn(r->headers_out, key, value);
                    203: }
                    204: 
                    205: void SAPI::send_header(Pool& pool) {
1.4       parser    206:        request_rec *r=static_cast<request_rec *>(pool.get_context());
1.1       parser    207: 
                    208:     ap_hard_timeout("Send header", r);
                    209:     ap_send_http_header(r);
                    210:        ap_kill_timeout(r);
                    211: }
                    212: 
                    213: void SAPI::send_body(Pool& pool, const void *buf, size_t size) {
1.4       parser    214:        request_rec *r=static_cast<request_rec *>(pool.get_context());
1.1       parser    215: 
                    216:     ap_hard_timeout("Send body", r);
                    217:        ap_rwrite(buf, size, r);
                    218:        ap_kill_timeout(r);
                    219: }
                    220: 
                    221: //@}
                    222: 
                    223: /**
                    224:        main workhorse
                    225:        
                    226:        @todo intelligent cache-control
                    227: */
1.3       parser    228: static void real_parser_handler(Pool& pool, request_rec *r) {
                    229:        ap_add_common_vars(r);
                    230:        ap_add_cgi_vars(r);
                    231: 
                    232:        // Request info
                    233:        Request::Info request_info;
                    234:        request_info.document_root=SAPI::get_env(pool, "DOCUMENT_ROOT");
                    235:        request_info.path_translated=r->filename;
                    236:        request_info.method=r->method;
                    237:        request_info.query_string=r->args;
                    238:        request_info.uri=SAPI::get_env(pool, "REQUEST_URI");
                    239:        request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE");
                    240:        const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH");
                    241:        request_info.content_length=content_length?atoi(content_length):0;
                    242:        request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE");
1.24      paf       243:        request_info.mail_received=false;
1.3       parser    244: 
1.9       paf       245:     // config
                    246:        Parser_module_config *dcfg=our_dconfig(r);
                    247: 
1.3       parser    248:        //_asm int 3;
                    249:        // prepare to process request
                    250:        Request request(pool,
                    251:                request_info,
1.12      paf       252:                String::UL_HTML|String::UL_OPTIMIZE_BIT,
1.9       paf       253:                dcfg->parser_status_allowed
1.3       parser    254:                );
                    255:        
                    256:        // process the request
                    257:        request.core(
1.22      paf       258:                dcfg->parser_config_filespec, true, // /path/to/config
1.3       parser    259:                r->header_only!=0);
                    260: }
                    261: 
                    262: void call_real_parser_handler__do_SEH(Pool& pool, request_rec *r) {
1.5       parser    263: #if _MSC_VER & !defined(_DEBUG)
1.3       parser    264:        LPEXCEPTION_POINTERS system_exception=0;
                    265:        __try {
                    266: #endif
                    267:                real_parser_handler(pool, r);
                    268:                
1.5       parser    269: #if _MSC_VER & !defined(_DEBUG)
1.3       parser    270:        } __except (
                    271:                (system_exception=GetExceptionInformation()), 
                    272:                EXCEPTION_EXECUTE_HANDLER) {
                    273:                
                    274:                if(system_exception)
                    275:                        if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.19      paf       276:                                throw Exception(0,
1.5       parser    277:                                        0,
                    278:                                        "Exception 0x%08X at 0x%08X", er->ExceptionCode,  er->ExceptionAddress);
1.3       parser    279:                        else
1.19      paf       280:                                throw Exception(0, 0, "Exception <no exception record>");
1.3       parser    281:                        else
1.19      paf       282:                                throw Exception(0, 0, "Exception <no exception information>");
1.3       parser    283:        }
                    284: #endif
                    285: }
                    286: 
1.15      paf       287: /// @test r->finfo.st_mode check seems to work only on win32
1.1       parser    288: static int parser_handler(request_rec *r) {
1.6       parser    289:        //_asm int 3;
1.1       parser    290:     if(r->finfo.st_mode == 0) 
                    291:                return NOT_FOUND;
                    292:        
                    293:        Pool pool(r->pool);
                    294:        pool.set_context(r);
                    295: 
                    296:        /* A flag which modules can set, to indicate that the data being
                    297:         * returned is volatile, and clients should be told not to cache it.
                    298:         */
1.14      paf       299: //     r->no_cache=1;
1.1       parser    300: 
1.3       parser    301:        try { // global try
                    302:                call_real_parser_handler__do_SEH(pool, r);
1.1       parser    303:                // successful finish
1.3       parser    304:        } catch(const Exception& e) { // global problem 
1.1       parser    305:                // don't allocate anything on pool here:
                    306:                //   possible pool' exception not catch-ed now
                    307:                //   and there could be out-of-memory exception
                    308:                const char *body=e.comment();
                    309:                // log it
                    310:                SAPI::log(pool, "exception in request exception handler: %s", body);
                    311: 
                    312:                //
                    313:                int content_length=strlen(body);
                    314: 
                    315:                // prepare header
                    316:                SAPI::add_header_attribute(pool, "content-type", "text/plain");
                    317:                char content_length_cstr[MAX_NUMBER];
                    318:                snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
                    319:                SAPI::add_header_attribute(pool, "content-length", content_length_cstr);
                    320: 
                    321:                // send header
                    322:                SAPI::send_header(pool);
                    323: 
                    324:                // send body
                    325:                if(!r->header_only)
                    326:                        SAPI::send_body(pool, body, content_length);
                    327: 
                    328:                // unsuccessful finish
                    329:        }
                    330: 
                    331:     /*
                    332:      * We did what we wanted to do, so tell the rest of the server we
                    333:      * succeeded.
                    334:      */
                    335:     return OK;
                    336: }
                    337: 
1.11      paf       338: #if _MSC_VER
1.10      paf       339: int failed_new(size_t size) {
                    340:        SAPI::die("out of memory in 'new', failed to allocated %u bytes", size);
                    341:        return 0; // not reached
                    342: }
                    343: #endif
                    344: 
                    345: #ifdef HAVE_SET_NEW_HANDLER
                    346: void failed_new() {
                    347:     SAPI::die("out of memory in 'new'");
                    348: }
                    349: #endif
                    350: 
1.1       parser    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: 
                    394: #ifdef WIN32
                    395:        _set_new_handler(failed_new);
                    396: #endif
                    397: 
                    398: #ifdef HAVE_SET_NEW_HANDLER
                    399:        std::set_new_handler(failed_new);
                    400: #endif
1.1       parser    401: 
                    402:        /*
                    403:      * allocate our module-private pool.
                    404:      */
                    405:        static Pool pool(ap_make_sub_pool(NULL)); // global pool
1.3       parser    406:        /// no trying to __try here [yet]
                    407:        try {
1.1       parser    408:                // init socks
                    409:                init_socks(pool);
                    410: 
                    411:                // init global classes
                    412:                init_methoded_array(pool);
                    413:                // init global variables
                    414:                pa_globals_init(pool);
1.3       parser    415:        } catch(const Exception& e) { // global problem 
1.7       parser    416:                SAPI::die("setup_module_cells failed: %s", e.comment());
1.1       parser    417:        }
                    418: }
                    419: 
                    420: static void parser_server_init(server_rec *s, pool *p) {
                    421: #if MODULE_MAGIC_NUMBER >= 19980527
                    422:        ap_add_version_component("Parser/"PARSER_VERSION);
                    423: #endif 
                    424: 
                    425:     /*
                    426:      * Set up any module cells that ought to be initialised.
                    427:      */
                    428:     setup_module_cells();
                    429: }
                    430: 
                    431: /*
                    432:  * This function gets called to create a per-directory configuration
                    433:  * record.  This will be called for the "default" server environment, and for
                    434:  * each directory for which the parser finds any of our directives applicable.
                    435:  * If a directory doesn't have any of our directives involved (i.e., they
                    436:  * aren't in the .htaccess file, or a <Location>, <Directory>, or related
                    437:  * block), this routine will *not* be called - the configuration for the
                    438:  * closest ancestor is used.
                    439:  *
                    440:  * The return value is a pointer to the created module-specific
                    441:  * structure.
                    442:  */
                    443: static void *parser_create_dir_config(pool *p, char *dirspec) {
1.13      paf       444:        //_asm int 3;
1.1       parser    445:        /*
                    446:      * Allocate the space for our record from the pool supplied.
                    447:      */
                    448:     Parser_module_config *cfg=
                    449:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    450:     /*
                    451:      * Now fill in the defaults.  If there are any `parent' configuration
                    452:      * records, they'll get merged as part of a separate callback.
                    453:      */
1.9       paf       454: 
1.1       parser    455:     return (void *) cfg;
                    456: }
                    457: 
                    458: /*
                    459:  * This function gets called to merge two per-directory configuration
                    460:  * records.  This is typically done to cope with things like .htaccess files
                    461:  * or <Location> directives for directories that are beneath one for which a
                    462:  * configuration record was already created.  The routine has the
                    463:  * responsibility of creating a new record and merging the contents of the
                    464:  * other two into it appropriately.  If the module doesn't declare a merge
                    465:  * routine, the record for the closest ancestor location (that has one) is
                    466:  * used exclusively.
                    467:  *
                    468:  * The routine MUST NOT modify any of its arguments!
                    469:  *
                    470:  * The return value is a pointer to the created module-specific structure
                    471:  * containing the merged values.
1.13      paf       472: 
                    473:    20011126 paf: noticed, that this is called even on virtual root merge with something "parent",
                    474:    while thought that that is part of merge_server...
                    475: 
1.1       parser    476:  */
                    477: static void *parser_merge_dir_config(pool *p, void *parent_conf,
                    478:                                       void *newloc_conf) {
1.13      paf       479:        //_asm int 3;
1.1       parser    480:     Parser_module_config *merged_config = 
                    481:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    482:     Parser_module_config *pconf = (Parser_module_config *) parent_conf;
                    483:     Parser_module_config *nconf = (Parser_module_config *) newloc_conf;
                    484: 
1.22      paf       485:     merged_config->parser_config_filespec = ap_pstrdup(p, nconf->parser_config_filespec?
                    486:                nconf->parser_config_filespec:pconf->parser_config_filespec);
1.9       paf       487:        merged_config->parser_status_allowed=
                    488:                pconf->parser_status_allowed ||
                    489:                nconf->parser_status_allowed;
1.13      paf       490: 
                    491:        /*
1.1       parser    492:      * Some things get copied directly from the more-specific record, rather
                    493:      * than getting merged.
                    494:      */
                    495: 
                    496:     return (void *) merged_config;
                    497: }
                    498: 
                    499: /*
                    500:  * This function gets called to create a per-server configuration
                    501:  * record.  It will always be called for the "default" server.
                    502:  *
                    503:  * The return value is a pointer to the created module-specific
                    504:  * structure.
                    505:  */
                    506: static void *parser_create_server_config(pool *p, server_rec *s) {
1.13      paf       507:        //_asm int 3;
1.1       parser    508:     /*
1.13      paf       509:      * As with the parser_create_dir_config() routine, we allocate and fill
1.1       parser    510:      * in an empty record.
                    511:      */
                    512:     Parser_module_config *cfg=
                    513:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    514: 
                    515:     return (void *) cfg;
                    516: }
                    517: 
                    518: /*
                    519:  * This function gets called to merge two per-server configuration
                    520:  * records.  This is typically done to cope with things like virtual hosts and
                    521:  * the default server configuration  The routine has the responsibility of
                    522:  * creating a new record and merging the contents of the other two into it
                    523:  * appropriately.  If the module doesn't declare a merge routine, the more
                    524:  * specific existing record is used exclusively.
                    525:  *
                    526:  * The routine MUST NOT modify any of its arguments!
                    527:  *
                    528:  * The return value is a pointer to the created module-specific structure
                    529:  * containing the merged values.
                    530:  */
                    531: static void *parser_merge_server_config(pool *p, void *server1_conf,
                    532:                                          void *server2_conf)
                    533: {
1.13      paf       534:        //_asm int 3;
1.1       parser    535: 
                    536:     Parser_module_config *merged_config = 
                    537:                (Parser_module_config *) ap_pcalloc(p, sizeof(Parser_module_config));
                    538:     Parser_module_config *s1conf = (Parser_module_config *) server1_conf;
                    539:     Parser_module_config *s2conf = (Parser_module_config *) server2_conf;
                    540: 
                    541:     /*
                    542:      * Our inheritance rules are our own, and part of our module's semantics.
                    543:      * Basically, just note whence we came.
                    544:      */
1.22      paf       545:     merged_config->parser_config_filespec = ap_pstrdup(p, s2conf->parser_config_filespec?
                    546:                s2conf->parser_config_filespec:s1conf->parser_config_filespec);
1.9       paf       547:        merged_config->parser_status_allowed=
                    548:                s1conf->parser_status_allowed || 
                    549:                s2conf->parser_status_allowed;
1.1       parser    550:  
                    551:        return (void *) merged_config;
                    552: }
                    553: 
                    554: /*
                    555:  * This routine gives our module an opportunity to translate the URI into an
                    556:  * actual filename.  If we don't do anything special, the server's default
                    557:  * rules (Alias directives and the like) will continue to be followed.
                    558:  *
                    559:  * The return value is OK, DECLINED, or HTTP_mumble.  If we return OK, no
                    560:  * further modules are called for this phase.
                    561:  */
                    562: static int parser_translate_handler(request_rec *r) {
                    563:     Parser_module_config *cfg=our_dconfig(r);
                    564:     return DECLINED;
                    565: }
                    566: 
                    567: /*
                    568:  * This routine is called to check the authentication information sent with
                    569:  * the request (such as looking up the user in a database and verifying that
                    570:  * the [encrypted] password sent matches the one in the database).
                    571:  *
                    572:  * The return value is OK, DECLINED, or some HTTP_mumble error (typically
                    573:  * HTTP_UNAUTHORIZED).  If we return OK, no other modules are given a chance
                    574:  * at the request during this phase.
                    575:  */
                    576: static int parser_check_user_id(request_rec *r) {
                    577:     Parser_module_config *cfg=our_dconfig(r);
                    578:     return DECLINED;
                    579: }
                    580: 
                    581: /*
                    582:  * This routine is called to check to see if the resource being requested
                    583:  * requires authorisation.
                    584:  *
                    585:  * The return value is OK, DECLINED, or HTTP_mumble.  If we return OK, no
                    586:  * other modules are called during this phase.
                    587:  *
                    588:  * If *all* modules return DECLINED, the request is aborted with a server
                    589:  * error.
                    590:  */
                    591: static int parser_auth_checker(request_rec *r) {
                    592:     Parser_module_config *cfg=our_dconfig(r);
                    593:     return DECLINED;
                    594: }
                    595: 
                    596: /*
                    597:  * This routine is called to check for any module-specific restrictions placed
                    598:  * upon the requested resource.  (See the mod_access module for an example.)
                    599:  *
                    600:  * The return value is OK, DECLINED, or HTTP_mumble.  All modules with an
                    601:  * handler for this phase are called regardless of whether their predecessors
                    602:  * return OK or DECLINED.  The first one to return any other status, however,
                    603:  * will abort the sequence (and the request) as usual.
                    604:  */
                    605: static int parser_access_checker(request_rec *r) {
                    606: 
                    607:     Parser_module_config *cfg=our_dconfig(r);
                    608:     return DECLINED;
                    609: }
                    610: 
                    611: /*--------------------------------------------------------------------------*/
                    612: /*                                                                          */
                    613: /* All of the routines have been declared now.  Here's the list of          */
                    614: /* directives specific to our module, and information about where they      */
                    615: /* may appear and how the command parser should pass them to us for         */
                    616: /* processing.  Note that care must be taken to ensure that there are NO    */
                    617: /* collisions of directive names between modules.                           */
                    618: /*                                                                          */
                    619: /*--------------------------------------------------------------------------*/
                    620: /* 
                    621:  * List of directives specific to our module.
                    622:  */
                    623: static const command_rec parser_cmds[] =
                    624: {
                    625:     {
1.22      paf       626:         "ParserConfig",              /* directive name */
1.1       parser    627:         (const char *(*)(void))((void *)cmd_parser_config), // config action routine
1.22      paf       628:         (void*)0,                   /* argument to include in call */
1.1       parser    629:         (int)(OR_OPTIONS),             /* where available */
                    630:         TAKE1,                /* arguments */
1.23      paf       631:         "Parser config filespec" // directive description
1.1       parser    632:     },
1.9       paf       633:        {
                    634:                "ParserStatusAllowed",              /* directive name */
                    635:         (const char *(*)(void))((void *)cmd_parser_status_allowed), // config action routine
                    636:         (void*)0,                   /* argument to include in call */
                    637:         (int)(ACCESS_CONF),             /* where available */
                    638:         NO_ARGS,                /* arguments */
                    639:         "Parser status class can be used" // directive description
                    640:        },
1.1       parser    641:     {NULL}
                    642: };
                    643: 
                    644: /*--------------------------------------------------------------------------*/
                    645: /*                                                                          */
                    646: /* Now the list of content handlers available from this module.             */
                    647: /*                                                                          */
                    648: /*--------------------------------------------------------------------------*/
                    649: /* 
                    650:  * List of content handlers our module supplies.  Each handler is defined by
                    651:  * two parts: a name by which it can be referenced (such as by
                    652:  * {Add,Set}Handler), and the actual routine name.  The list is terminated by
                    653:  * a NULL block, since it can be of variable length.
                    654:  *
                    655:  * Note that content-handlers are invoked on a most-specific to least-specific
                    656:  * basis; that is, a handler that is declared for "text/plain" will be
                    657:  * invoked before one that was declared for "text / *".  Note also that
                    658:  * if a content-handler returns anything except DECLINED, no other
                    659:  * content-handlers will be called.
                    660:  */
                    661: static const handler_rec parser_handlers[] =
                    662: {
1.9       paf       663:     {"parser3-handler", parser_handler},
1.1       parser    664:     {NULL}
                    665: };
                    666: 
                    667: /*--------------------------------------------------------------------------*/
                    668: /*                                                                          */
                    669: /* Finally, the list of callback routines and data structures that          */
                    670: /* provide the hooks into our module from the other parts of the server.    */
                    671: /*                                                                          */
                    672: /*--------------------------------------------------------------------------*/
                    673: /* 
                    674:  * Module definition for configuration.  If a particular callback is not
                    675:  * needed, replace its routine name below with the word NULL.
                    676:  *
                    677:  * The number in brackets indicates the order in which the routine is called
                    678:  * during request processing.  Note that not all routines are necessarily
                    679:  * called (such as if a resource doesn't have access restrictions).
                    680:  */
1.9       paf       681: module MODULE_VAR_EXPORT parser3_module =
1.1       parser    682: {
                    683:     STANDARD_MODULE_STUFF,
                    684:     parser_server_init,          /* module initializer */
                    685:     parser_create_dir_config,    /* per-directory config creator */
                    686:     parser_merge_dir_config,     /* dir config merger */
                    687:     parser_create_server_config, /* server config creator */
                    688:     parser_merge_server_config,  /* server config merger */
                    689:     parser_cmds,                 /* command table */
                    690:     parser_handlers,             /* [9] list of handlers */
                    691:     parser_translate_handler,    /* [2] filename-to-URI translation */
                    692:     parser_check_user_id,        /* [5] check/validate user_id */
                    693:     parser_auth_checker,         /* [6] check user_id is valid *here* */
                    694:     parser_access_checker,       /* [4] check access by host address */
                    695:     0,                           /* [7] MIME type checker/setter */
                    696:     0,                           /* [8] fixups */
                    697:     0                            /* [10] logger */
                    698: };
                    699: 
                    700: #if defined(_MSC_VER)
1.20      paf       701: #      define APACHE_WIN32_SRC "/parser3project/win32/apache13/src"
1.1       parser    702: #      ifdef _DEBUG
                    703: #              pragma comment(lib, APACHE_WIN32_SRC "/CoreD/ApacheCore.lib")
                    704: #      else
                    705: #              pragma comment(lib, APACHE_WIN32_SRC "/CoreR/ApacheCore.lib")
                    706: #      endif
                    707: #endif

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