Annotation of parser3/src/targets/isapi/parser3isapi.C, revision 1.50
1.29 paf 1: /** @file
2: Parser: IIS extension.
3:
4: Copyright (c) 2000,2001 ArtLebedev Group (http://www.artlebedev.com)
1.44 parser 5: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.29 paf 6:
1.50 ! parser 7: $Id: parser3isapi.C,v 1.49 2001/10/09 14:30:19 parser Exp $
1.29 paf 8: */
9:
1.1 paf 10: #ifndef _MSC_VER
1.10 paf 11: # error compile ISAPI module with MSVC [no urge for now to make it autoconf-ed (PAF)]
1.1 paf 12: #endif
1.43 parser 13:
14: #include "pa_config_includes.h"
1.1 paf 15:
16: #include <windows.h>
17: #include <process.h>
18:
19: #include <httpext.h>
20:
1.9 paf 21: #include "pa_sapi.h"
1.1 paf 22: #include "pa_globals.h"
23: #include "pa_request.h"
24: #include "pa_version.h"
1.13 paf 25: #include "pool_storage.h"
1.24 paf 26: #include "pa_socks.h"
1.1 paf 27:
28: #define MAX_STATUS_LENGTH sizeof("xxxx LONGEST STATUS DESCRIPTION")
1.44 parser 29:
30: // consts
31:
32: extern const char *main_RCSIds[];
1.46 parser 33: #ifdef USE_SMTP
1.44 parser 34: extern const char *smtp_RCSIds[];
1.45 parser 35: #endif
1.44 parser 36: extern const char *gd_RCSIds[];
37: extern const char *classes_RCSIds[];
38: extern const char *types_RCSIds[];
39: extern const char *parser3isapi_RCSIds[];
1.49 parser 40: #ifdef XML
41: extern const char *xalan_patched_RCSIds[];
42: #endif
1.44 parser 43: const char **RCSIds[]={
44: main_RCSIds,
1.46 parser 45: #ifdef USE_SMTP
1.44 parser 46: smtp_RCSIds,
1.45 parser 47: #endif
1.44 parser 48: gd_RCSIds,
49: classes_RCSIds,
50: types_RCSIds,
51: parser3isapi_RCSIds,
1.48 parser 52: #ifdef XML
53: xalan_patched_RCSIds,
54: #endif
1.44 parser 55: 0
56: };
1.1 paf 57:
1.18 paf 58: // SAPI
59:
1.38 parser 60: #ifndef DOXYGEN
61: /*
1.18 paf 62: ISAPI SAPI functions receive this context information.
1.38 parser 63: see Pool::set_context
1.18 paf 64: */
1.15 paf 65: struct SAPI_func_context {
1.3 paf 66: LPEXTENSION_CONTROL_BLOCK lpECB;
67: String *header;
68: DWORD http_response_code;
69: };
1.38 parser 70: #endif
1.3 paf 71:
1.50 ! parser 72: #ifdef XML
! 73: /**
! 74: * Terminate Xalan and Xerces.
! 75: *
! 76: * Should be called only once per process after deleting all
! 77: * instances of XalanTransformer. Once a process has called
! 78: * this function, it cannot use the API for the remaining
! 79: * lifetime of the process.
! 80:
! 81:
! 82: this requirement is fullfilled by using Pool::register_cleanup
! 83: */
! 84: void callXalanTerminate(void *) {
! 85: //_asm int 3;
! 86: XalanTerminate();
! 87: }
! 88: #endif
! 89:
1.26 paf 90: // goes to 'cs-uri-query' log file field. webmaster: switch it ON[default OFF].
91: void SAPI::log(Pool& pool, const char *fmt, ...) {
92: SAPI_func_context& ctx=*static_cast<SAPI_func_context *>(pool.context());
93:
94: va_list args;
95: va_start(args,fmt);
96: char buf[MAX_STRING];
97: const char *prefix="PARSER_ERROR:";
98: strcpy(buf, prefix);
1.47 parser 99: char *start=buf+strlen(prefix);
100: size_t size=vsnprintf(start, MAX_STRING-strlen(prefix), fmt, args);
101: remove_crlf(start, start+size);
102:
1.26 paf 103: ctx.lpECB->ServerSupportFunction(ctx.lpECB->ConnID,
104: HSE_APPEND_LOG_PARAMETER, buf, &size, 0);
105: }
106:
1.9 paf 107: const char *SAPI::get_env(Pool& pool, const char *name) {
1.15 paf 108: SAPI_func_context& ctx=*static_cast<SAPI_func_context *>(pool.context());
1.1 paf 109:
110: char *variable_buf=(char *)pool.malloc(MAX_STRING);
111: DWORD variable_len = MAX_STRING-1;
112:
1.3 paf 113: if(ctx.lpECB->GetServerVariable(ctx.lpECB->ConnID, const_cast<char *>(name),
1.1 paf 114: variable_buf, &variable_len)) {
115: variable_buf[variable_len]=0;
116: return variable_buf;
1.7 paf 117: } else if (GetLastError()==ERROR_INSUFFICIENT_BUFFER) {
118: variable_buf=(char *)pool.malloc(variable_len+1);
119:
120: if(ctx.lpECB->GetServerVariable(ctx.lpECB->ConnID, const_cast<char *>(name),
121: variable_buf, &variable_len)) {
122: variable_buf[variable_len]=0;
123: return variable_buf;
124: }
1.1 paf 125: }
1.7 paf 126:
1.1 paf 127: return 0;
128: }
129:
1.26 paf 130: size_t SAPI::read_post(Pool& pool, char *buf, size_t max_bytes) {
1.15 paf 131: SAPI_func_context& ctx=*static_cast<SAPI_func_context *>(pool.context());
1.1 paf 132:
133: DWORD read_from_buf=0;
134: DWORD read_from_input=0;
135: DWORD total_read=0;
136:
1.3 paf 137: read_from_buf=min(ctx.lpECB->cbAvailable, max_bytes);
138: memcpy(buf, ctx.lpECB->lpbData, read_from_buf);
1.1 paf 139: total_read+=read_from_buf;
140:
141: if(read_from_buf<max_bytes &&
1.3 paf 142: read_from_buf<ctx.lpECB->cbTotalBytes) {
1.1 paf 143: DWORD cbRead=0, cbSize;
144:
1.3 paf 145: read_from_input=min(max_bytes-read_from_buf,
146: ctx.lpECB->cbTotalBytes-read_from_buf);
1.1 paf 147: while(cbRead < read_from_input) {
148: cbSize=read_from_input - cbRead;
1.3 paf 149: if(!ctx.lpECB->ReadClient(ctx.lpECB->ConnID,
150: buf+read_from_buf+cbRead, &cbSize) ||
1.1 paf 151: cbSize==0)
152: break;
153: cbRead+=cbSize;
154: }
155: total_read+=cbRead;
156: }
157: return total_read;
158: }
159:
1.9 paf 160: void SAPI::add_header_attribute(Pool& pool, const char *key, const char *value) {
1.15 paf 161: SAPI_func_context& ctx=*static_cast<SAPI_func_context *>(pool.context());
1.3 paf 162:
163: if(strcasecmp(key, "location")==0)
164: ctx.http_response_code=302;
165:
166: if(strcasecmp(key, "status")==0)
167: ctx.http_response_code=atoi(value);
168: else {
169: ctx.header->APPEND_CONST(key);
170: ctx.header->APPEND_CONST(": ");
171: ctx.header->APPEND_CONST(value);
1.30 paf 172: ctx.header->APPEND_CONST("\r\n");
1.3 paf 173: }
1.1 paf 174: }
175:
1.23 paf 176: /// @todo intelligent cache-control
1.9 paf 177: void SAPI::send_header(Pool& pool) {
1.15 paf 178: SAPI_func_context& ctx=*static_cast<SAPI_func_context *>(pool.context());
1.1 paf 179:
1.6 paf 180: ctx.header->APPEND_CONST(
1.30 paf 181: "expires: Fri, 23 Mar 2001 09:32:23 GMT\r\n"
182: "\r\n");
1.1 paf 183: HSE_SEND_HEADER_EX_INFO header_info;
184:
185: char status_buf[MAX_STATUS_LENGTH];
1.3 paf 186: switch(ctx.http_response_code) {
1.1 paf 187: case 200:
188: header_info.pszStatus="200 OK";
189: break;
190: case 302:
191: header_info.pszStatus="302 Moved Temporarily";
192: break;
1.8 paf 193: case 401:// useless untill parser auth mech
1.1 paf 194: header_info.pszStatus="401 Authorization Required";
1.8 paf 195: break;
1.1 paf 196: default:
1.3 paf 197: snprintf(status_buf, MAX_STATUS_LENGTH,
198: "%d Undescribed", ctx.http_response_code);
1.1 paf 199: header_info.pszStatus=status_buf;
200: break;
201: }
202: header_info.cchStatus=strlen(header_info.pszStatus);
1.3 paf 203: header_info.pszHeader=ctx.header->cstr();
204: header_info.cchHeader=ctx.header->size();
1.5 paf 205: header_info.fKeepConn=true;
1.1 paf 206:
1.3 paf 207: ctx.lpECB->dwHttpStatusCode=ctx.http_response_code;
1.1 paf 208:
1.3 paf 209: ctx.lpECB->ServerSupportFunction(ctx.lpECB->ConnID,
210: HSE_REQ_SEND_RESPONSE_HEADER_EX, &header_info, NULL, NULL);
1.1 paf 211: }
212:
1.23 paf 213: void SAPI::send_body(Pool& pool, const void *buf, size_t size) {
1.15 paf 214: SAPI_func_context& ctx=*static_cast<SAPI_func_context *>(pool.context());
1.1 paf 215:
216: DWORD num_bytes=size;
1.3 paf 217: ctx.lpECB->WriteClient(ctx.lpECB->ConnID,
1.23 paf 218: const_cast<void *>(buf), &num_bytes, HSE_IO_SYNC);
1.1 paf 219: }
1.16 paf 220:
1.1 paf 221: //
222:
1.15 paf 223: static bool parser_init() {
1.1 paf 224: static bool globals_inited=false;
225: if(globals_inited)
1.15 paf 226: return true;
1.1 paf 227: globals_inited=true;
228:
1.13 paf 229: static Pool pool(0); // global pool
1.1 paf 230: PTRY {
1.27 paf 231: // init socks
232: init_socks(pool);
233:
1.50 ! parser 234: #ifdef XML
! 235: /**
! 236: * Initialize Xerces and Xalan.
! 237: *
! 238: * Should be called only once per process before making
! 239: * any other API calls.
! 240: */
! 241: //_asm int 3;
! 242: XalanInitialize();
! 243: pool.register_cleanup(callXalanTerminate, 0);
! 244: #endif
! 245:
1.32 paf 246: // init global classes
247: init_methoded_array(pool);
1.1 paf 248: // init global variables
1.9 paf 249: pa_globals_init(pool);
1.1 paf 250:
1.15 paf 251: // successful finish
252: return true;
1.1 paf 253: } PCATCH(e) { // global problem
1.15 paf 254: //const char *body=e.comment();
255:
256: // unsuccessful finish
257: return false;
1.1 paf 258: }
259: PEND_CATCH
260: }
261:
262: /// ISAPI //
263: BOOL WINAPI GetExtensionVersion(HSE_VERSION_INFO *pVer) {
264: pVer->dwExtensionVersion = HSE_VERSION;
1.36 parser 265: strncpy(pVer->lpszExtensionDesc, "Parser "PARSER_VERSION, HSE_MAX_EXT_DLL_NAME_LEN-1);
266: pVer->lpszExtensionDesc[HSE_MAX_EXT_DLL_NAME_LEN-1]=0;
1.15 paf 267: return parser_init();
1.1 paf 268: }
269:
1.6 paf 270: /**
271: ISAPI // main workhorse
272:
1.23 paf 273: @todo
1.10 paf 274: IIS: remove trailing default-document[index.html] from $request.uri.
275: to do that we need to consult metabase,
1.12 paf 276: wich is tested&works but seems slow runtime
277: and not could-be-quickly-implemented if prepared.
1.37 parser 278: @test
279: PARSER_VERSION from outside
1.6 paf 280: */
1.1 paf 281: DWORD WINAPI HttpExtensionProc(LPEXTENSION_CONTROL_BLOCK lpECB) {
1.13 paf 282: Pool_storage pool_storage;
1.15 paf 283: Pool pool(&pool_storage); // no allocations until assigned context [for reporting]
284: SAPI_func_context ctx={
285: lpECB,
1.18 paf 286: 0, // filling later: so that if there would be error pool would have ctx
1.39 parser 287: 200 // default http_response_code
1.15 paf 288: };
1.41 parser 289: _asm nop; // int 3;
1.15 paf 290: pool.set_context(&ctx);// no allocations before this line!
1.2 paf 291:
1.50 ! parser 292: #ifdef XML
! 293: /**
! 294: * Initialize Xerces and Xalan.
! 295: *
! 296: * Should be called only once per process before making
! 297: * any other API calls.
! 298: */
! 299: //_asm int 3;
! 300: XalanInitialize();
! 301: pool.register_cleanup(callXalanTerminate, 0);
! 302: #endif
! 303:
! 304:
1.1 paf 305: bool header_only=strcasecmp(lpECB->lpszMethod, "HEAD")==0;
306: PTRY { // global try
1.12 paf 307: ctx.header=new(pool) String(pool);
1.3 paf 308:
1.2 paf 309: // Request info
310: Request::Info request_info;
1.14 paf 311:
312: size_t path_translated_buf_size=strlen(lpECB->lpszPathTranslated)+1;
313: char *filespec_to_process=(char *)malloc(path_translated_buf_size);
314: memcpy(filespec_to_process, lpECB->lpszPathTranslated, path_translated_buf_size);
315: #ifdef WIN32
316: back_slashes_to_slashes(filespec_to_process);
317: #endif
318:
1.11 paf 319: if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) {
320: // IIS
321: size_t len=strlen(filespec_to_process)-strlen(path_info);
322: char *buf=(char *)pool.malloc(len+1);
1.36 parser 323: strncpy(buf, filespec_to_process, len); buf[len]=0;
1.11 paf 324: request_info.document_root=buf;
325: } else
1.6 paf 326: PTHROW(0, 0,
327: 0,
1.11 paf 328: "ISAPI: no PATH_INFO defined (in reinventing DOCUMENT_ROOT)");
1.6 paf 329:
1.11 paf 330: request_info.path_translated=filespec_to_process;
1.2 paf 331: request_info.method=lpECB->lpszMethod;
332: request_info.query_string=lpECB->lpszQueryString;
333: if(lpECB->lpszQueryString && *lpECB->lpszQueryString) {
1.7 paf 334: char *reconstructed_uri=(char *)malloc(
335: strlen(lpECB->lpszPathInfo)+1/*'?'*/+
336: strlen(lpECB->lpszQueryString)+1/*0*/);
337: strcpy(reconstructed_uri, lpECB->lpszPathInfo);
1.2 paf 338: strcat(reconstructed_uri, "?");
1.7 paf 339: strcat(reconstructed_uri, lpECB->lpszQueryString);
1.2 paf 340: request_info.uri=reconstructed_uri;
341: } else
342: request_info.uri=lpECB->lpszPathInfo;
343:
344: request_info.content_type=lpECB->lpszContentType;
345: request_info.content_length=lpECB->cbTotalBytes;
1.9 paf 346: request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE");
1.20 paf 347: request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT");
348:
1.2 paf 349:
350: // prepare to process request
351: Request request(pool,
352: request_info,
1.33 paf 353: String::UL_USER_HTML
1.2 paf 354: );
1.15 paf 355:
1.2 paf 356: // some root-controlled location
1.7 paf 357: // c:\windows
1.42 parser 358: char root_config_path[MAX_STRING];
359: GetWindowsDirectory(root_config_path, MAX_STRING);
1.7 paf 360: // must be dynamic: rethrowing from request.core
361: // may return 'source' which can be inside of 'root auto.p@exeception'
1.42 parser 362: char *root_config_filespec=(char *)pool.malloc(MAX_STRING);
363: snprintf(root_config_filespec, MAX_STRING,
364: "%s/%s",
365: root_config_path, CONFIG_FILE_NAME);
1.4 paf 366:
1.2 paf 367: // process the request
368: request.core(
1.42 parser 369: root_config_filespec, false/*may be abcent*/, // /path/to/admin/auto.p
1.2 paf 370: 0/*parser_site_auto_path*/, false, // /path/to/site/auto.p
371: header_only);
372: // successful finish
1.12 paf 373: } PCATCH(e) { // global problem
374: // don't allocate anything on pool here:
375: // possible pool' exception not catch-ed now
1.31 paf 376: // and there could be out-of-memory exception
1.1 paf 377: const char *body=e.comment();
1.16 paf 378: // log it
379: SAPI::log(pool, "exception in request exception handler: %s", body);
380:
381: //
1.1 paf 382: int content_length=strlen(body);
383:
1.12 paf 384: // prepare header // not using SAPI func wich allocates on pool
385: char header_buf[MAX_STRING];
386: int header_len=snprintf(header_buf, MAX_STRING,
1.30 paf 387: "content-type: text/plain\r\n"
388: "content-length: %lu\r\n"
389: "expires: Fri, 23 Mar 2001 09:32:23 GMT\r\n"
390: "\r\n",
1.12 paf 391: content_length);
392:
393: HSE_SEND_HEADER_EX_INFO header_info;
394: header_info.pszStatus="200 OK";
395: header_info.cchStatus=strlen(header_info.pszStatus);
396: header_info.pszHeader=header_buf;
397: header_info.cchHeader=header_len;
398: header_info.fKeepConn=true;
399:
1.1 paf 400: // send header
1.12 paf 401: lpECB->dwHttpStatusCode=200;
402: lpECB->ServerSupportFunction(lpECB->ConnID,
403: HSE_REQ_SEND_RESPONSE_HEADER_EX, &header_info, NULL, NULL);
1.1 paf 404:
405: // send body
406: if(!header_only)
1.9 paf 407: SAPI::send_body(pool, body, content_length);
1.1 paf 408:
409: // unsuccessful finish
410: }
411: PEND_CATCH
412:
1.6 paf 413: return HSE_STATUS_SUCCESS_AND_KEEP_CONN;
1.1 paf 414: }
E-mail:
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to parser3isapi.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / parser3 / src / targets / isapi