Annotation of parser3/src/targets/apache/mod_parser3_core.C, revision 1.37
1.1 moko 1: /** @file
1.8 moko 2: Parser: apache 1.3/2.X module, part, compiled by parser3project.
1.1 moko 3:
1.37 ! moko 4: Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com)
1.36 moko 5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
1.1 moko 6: */
7:
1.37 ! moko 8: volatile const char * IDENT_MOD_PARSER3_CORE_C="$Id: mod_parser3_core.C,v 1.36 2023/09/26 20:49:11 moko Exp $";
1.1 moko 9:
10: #include "pa_config_includes.h"
11:
12: #include "pa_globals.h"
13:
14: #include "pa_httpd.h"
15:
16: #include "pa_common.h"
17: #include "pa_sapi.h"
18: #include "classes.h"
19: #include "pa_request.h"
20:
1.17 moko 21: #if defined(_MSC_VER) && !defined(_DEBUG)
1.9 moko 22: # include <windows.h>
1.1 moko 23: # define PA_SUPPRESS_SYSTEM_EXCEPTION
24: #endif
25:
26: // generals
27:
1.7 moko 28: static bool globals_inited=false;
29:
1.1 moko 30: void pa_setup_module_cells() {
31: if(globals_inited)
32: return;
33: globals_inited=true;
34:
35: /// no trying to __try here [yet]
36: try {
1.18 moko 37: // init libraries
1.1 moko 38: pa_globals_init();
39: } catch(const Exception& e) { // global problem
1.21 moko 40: SAPI::die("setup_module_cells failed: %s", e.comment());
1.1 moko 41: }
42: }
43:
44: void pa_destroy_module_cells() {
1.7 moko 45: if(!globals_inited)
46: return;
47:
1.1 moko 48: pa_globals_done();
49: }
50:
51:
52: //@{
53: /// SAPI func decl
54:
55: class SAPI_Info {
56: public:
57: pa_request_rec* r;
58: };
59:
60: void SAPI::log(SAPI_Info& SAPI_info, const char* fmt, ...) {
61: va_list args;
62: va_start(args,fmt);
63: char buf[MAX_LOG_STRING];
64: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
65: size=remove_crlf(buf, buf+size);
66: pa_ap_log_rerror(0, 0, PA_APLOG_ERR | PA_APLOG_NOERRNO, SAPI_info.r, "%s", buf);
67: va_end(args);
68: }
69:
1.21 moko 70: void SAPI::die(const char* fmt, ...) {
71: va_list args;
72: va_start(args, fmt);
1.1 moko 73: char buf[MAX_LOG_STRING];
74: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
75: size=remove_crlf(buf, buf+size);
76: pa_ap_log_error(PA_APLOG_MARK, PA_APLOG_EMERG, 0, "%s", buf);
1.21 moko 77: exit(1);
78: // va_end(args);
1.1 moko 79: }
80:
1.11 moko 81: char* SAPI::Env::get(SAPI_Info& SAPI_info, const char* name) {
1.1 moko 82: const char* dont_return_me=pa_ap_table_get(SAPI_info.r->subprocess_env, name);
83: return dont_return_me?pa_strdup(dont_return_me):0;
84: }
85:
1.28 moko 86: bool SAPI::Env::set(SAPI_Info&, const char*, const char*) {
87: return false;
88: }
89:
1.1 moko 90: #ifndef DOXYGEN
91: struct SAPI_environment_append_info {
92: const char** cur;
93: };
94: #endif
1.22 moko 95:
1.1 moko 96: static int SAPI_environment_append(void *d, const char* k, const char* val) {
1.26 moko 97: if(k && val) {
98: SAPI_environment_append_info& info=*static_cast<SAPI_environment_append_info *>(d);
1.30 moko 99: *info.cur++=pa_strcat(k, "=", val);
1.1 moko 100: }
101: return 1/*true*/;
102: }
1.22 moko 103:
1.11 moko 104: const char* const* SAPI::Env::get(SAPI_Info& SAPI_info) {
1.1 moko 105: const pa_table *t=SAPI_info.r->subprocess_env;
1.35 moko 106: const char** result=new(PointerGC) const char*[pa_ap_table_size(t)+1/*0*/];
1.1 moko 107: SAPI_environment_append_info info={result};
108: pa_ap_table_do(SAPI_environment_append, &info, t, 0); *info.cur=0; // mark EOE
109: return result;
110: }
111:
112: size_t SAPI::read_post(SAPI_Info& SAPI_info, char *buf, size_t max_bytes) {
1.21 moko 113: // pa_ap_log_error(PA_APLOG_MARK, PA_APLOG_DEBUG, SAPI_info.r->server, "mod_parser3: SAPI::read_post(max=%u)", max_bytes);
114:
1.1 moko 115: int retval;
116: if((retval = pa_ap_setup_client_block(SAPI_info.r, PA_REQUEST_CHUNKED_ERROR)))
117: return 0;
118: if(!pa_ap_should_client_block(SAPI_info.r))
119: return 0;
120:
121: uint total_read_bytes=0;
122: void (*handler)(int)=pa_signal(PA_SIGPIPE, PA_SIG_IGN);
123: while (total_read_bytes<max_bytes) {
124: pa_ap_hard_timeout("Read POST information", SAPI_info.r); /* start timeout timer */
125: uint read_bytes=
126: pa_ap_get_client_block(SAPI_info.r, buf+total_read_bytes, max_bytes-total_read_bytes);
127: pa_ap_reset_timeout(SAPI_info.r);
128: if (read_bytes<=0)
129: break;
130: total_read_bytes+=read_bytes;
131: }
132: pa_signal(PA_SIGPIPE, handler);
133: return total_read_bytes;
134: }
135:
136: /// @test location provide with protocol. think about internal redirects
1.22 moko 137: void SAPI::add_header_attribute(SAPI_Info& SAPI_info, const char* dont_store_key, const char* dont_store_value) {
1.1 moko 138: if(strcasecmp(dont_store_key, "location")==0)
139: *SAPI_info.r->status=302;
140:
141: if(strcasecmp(dont_store_key, HTTP_CONTENT_TYPE)==0) {
142: /* r->content_type, *not* r->headers_out("Content-type"). If you don't
143: * set it, it will be filled in with the server's default type (typically
144: * "text/plain"). You *must* also ensure that r->content_type is lower
145: * case.
146: */
147: *SAPI_info.r->content_type = pa_ap_pstrdup(SAPI_info.r->pool, dont_store_value);
148: } else if(strcasecmp(dont_store_key, HTTP_STATUS)==0)
1.25 moko 149: *SAPI_info.r->status=atoi(dont_store_value);
1.1 moko 150: else
151: pa_ap_table_addn(SAPI_info.r->headers_out,
152: pa_ap_pstrdup(SAPI_info.r->pool, capitalize(dont_store_key)),
153: pa_ap_pstrdup(SAPI_info.r->pool, dont_store_value));
154: }
155:
156: void SAPI::send_header(SAPI_Info& SAPI_info) {
157: pa_ap_hard_timeout("Send header", SAPI_info.r);
158: pa_ap_send_http_header(SAPI_info.r);
159: pa_ap_kill_timeout(SAPI_info.r);
160: }
161:
162: size_t SAPI::send_body(SAPI_Info& SAPI_info, const void *buf, size_t size) {
163: pa_ap_hard_timeout("Send body", SAPI_info.r);
164: size = (size_t)pa_ap_rwrite(buf, size, SAPI_info.r);
165: pa_ap_kill_timeout(SAPI_info.r);
166: return size;
167: }
168:
169: //@}
170:
171: /**
172: main workhorse
173: @todo intelligent cache-control
174: */
175: static void real_parser_handler(SAPI_Info& SAPI_info, Parser_module_config *dcfg) {
176: // collect garbage from prev request
1.34 moko 177: pa_gc_collect();
1.1 moko 178:
179: // populate env
180: pa_ap_add_common_vars(SAPI_info.r);
181: pa_ap_add_cgi_vars(SAPI_info.r);
182:
183: // Request info
184: Request_info request_info; memset(&request_info, 0, sizeof(request_info));
185:
1.11 moko 186: request_info.document_root=SAPI::Env::get(SAPI_info, "DOCUMENT_ROOT");
1.1 moko 187: request_info.path_translated=SAPI_info.r->filename;
188: request_info.method=SAPI_info.r->method;
189: request_info.query_string=SAPI_info.r->args;
1.15 moko 190: request_info.uri=request_info.strip_absolute_uri(SAPI::Env::get(SAPI_info, "REQUEST_URI"));
1.11 moko 191: request_info.content_type=SAPI::Env::get(SAPI_info, "CONTENT_TYPE");
1.27 moko 192: request_info.content_length=pa_atoul(SAPI::Env::get(SAPI_info, "CONTENT_LENGTH"));
1.11 moko 193: request_info.cookie=SAPI::Env::get(SAPI_info, "HTTP_COOKIE");
1.1 moko 194: request_info.mail_received=false;
195:
196: // prepare to process request
1.29 moko 197: Request request(SAPI_info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.1 moko 198:
199: // process the request
1.31 moko 200: const char *config=dcfg->parser_config_filespec;
201: #ifdef SYSTEM_CONFIG_FILE
202: if(!config && entry_exists(SYSTEM_CONFIG_FILE)){
203: config=SYSTEM_CONFIG_FILE;
204: }
205: #endif
206: request.core(config, SAPI_info.r->header_only!=0);
1.1 moko 207: }
208:
209: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.20 moko 210: static const Exception call_real_parser_handler__do_PEH_return_it(SAPI_Info& SAPI_info, Parser_module_config *dcfg) {
1.1 moko 211: try {
212: real_parser_handler(SAPI_info, dcfg);
213: } catch(const Exception& e) {
214: return e;
215: }
216:
217: return Exception();
218: }
1.20 moko 219:
220: static void call_real_parser_handler__supress_system_exception(SAPI_Info& SAPI_info, Parser_module_config *dcfg) {
1.1 moko 221: Exception parser_exception;
222: LPEXCEPTION_POINTERS system_exception=0;
223:
224: __try {
1.20 moko 225: parser_exception=call_real_parser_handler__do_PEH_return_it(SAPI_info, dcfg);
226: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.1 moko 227: if(system_exception)
228: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.20 moko 229: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.1 moko 230: else
1.20 moko 231: throw Exception("system", 0, "<no exception record>");
1.1 moko 232: else
1.20 moko 233: throw Exception("system", 0, "<no exception information>");
1.1 moko 234: }
235:
236: if(parser_exception)
237: throw Exception(parser_exception);
238: }
239: #endif
240:
241: /// @test r->finfo.st_mode check seems to work only on win32
242: int pa_parser_handler(pa_request_rec *r, Parser_module_config *dcfg) {
243: // SAPI info
244: SAPI_Info SAPI_info; SAPI_info.r=r;
245:
1.24 moko 246: if(r->file_not_found)
1.1 moko 247: return PA_HTTP_NOT_FOUND;
248:
249: try { // global try
250: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
251: call_real_parser_handler__supress_system_exception(
252: #else
253: real_parser_handler(
254: #endif
255: SAPI_info, dcfg);
256:
257: // successful finish
1.24 moko 258: } catch(const Exception& e) { // exception in unhandled exception
1.1 moko 259: // log it
1.24 moko 260: SAPI::log(SAPI_info, "%s", e.comment());
1.26 moko 261: SAPI::send_error(SAPI_info, e.comment());
1.1 moko 262: }
263:
264: /*
265: * We did what we wanted to do, so tell the rest of the server we
266: * succeeded.
267: */
268: return PA_OK;
269: }
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