Annotation of parser3/src/targets/cgi/parser3.C, revision 1.30
1.27 paf 1: /** @file
2: Parser: scripting and CGI main.
3:
1.1 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.27 paf 5:
1.1 paf 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
7:
1.30 ! paf 8: $Id: parser3.C,v 1.29 2001/03/21 16:59:07 paf Exp $
1.1 paf 9: */
10:
1.5 paf 11: #ifdef HAVE_CONFIG_H
12: # include "pa_config.h"
13: #endif
14:
1.3 paf 15:
16: #ifdef WIN32
17: # include <windows.h>
18: # include <io.h>
1.27 paf 19: #else
20: # include <unistd.h>
1.3 paf 21: #endif
1.27 paf 22:
23: //\ifwin32
24: #include <io.h>
25: //#include <fcntl.h>
26: //\endifwin32
27:
1.3 paf 28: #include <stdlib.h>
1.4 paf 29: #include <stdio.h>
30: #include <string.h>
31: #include <fcntl.h>
1.3 paf 32:
1.24 paf 33: #include "pa_common.h"
1.5 paf 34: #include "pa_globals.h"
1.2 paf 35: #include "pa_request.h"
1.1 paf 36:
1.29 paf 37: Pool pool; // global pool
1.27 paf 38: bool cgi; ///< we were started as CGI?
1.5 paf 39:
1.3 paf 40: #ifdef WIN32
1.14 paf 41: # if _MSC_VER
1.5 paf 42: // intercept global system errors
1.30 ! paf 43: static LONG WINAPI TopLevelExceptionFilter (
1.5 paf 44: struct _EXCEPTION_POINTERS *ExceptionInfo
45: ) {
46: char buf[MAX_STRING];
47: if(ExceptionInfo && ExceptionInfo->ExceptionRecord) {
48: struct _EXCEPTION_RECORD *r=ExceptionInfo->ExceptionRecord;
49:
50: int printed=0;
51: printed+=snprintf(buf+printed, MAX_STRING-printed, "Exception 0x%X at 0x%p",
52: r->ExceptionCode,
53: r->ExceptionAddress);
54: for(unsigned int i=0; i<r->NumberParameters; i++)
55: printed+=snprintf(buf+printed, MAX_STRING-printed, ", 0x%X",
56: r->ExceptionInformation[i]);
57: } else
58: strcpy(buf, "Exception <unknown>");
59:
60: PTHROW(0, 0,
61: 0,
62: buf);
63:
64: return EXCEPTION_EXECUTE_HANDLER; // never reached
65: }
1.8 paf 66: # endif
1.26 paf 67:
1.27 paf 68: #endif
69:
70: //\if
1.30 ! paf 71: static void fix_slashes(char *s) {
1.27 paf 72: if(s)
73: for(; *s; s++)
74: if(*s=='\\')
75: *s='/';
1.26 paf 76: }
1.27 paf 77: //\endif
1.3 paf 78:
1.19 paf 79: // service funcs
80:
1.30 ! paf 81: static const char *get_env(Pool& pool, const char *name) {
1.28 paf 82: return getenv(name);
83: }
84:
1.30 ! paf 85: static uint read_post(char *buf, uint max_bytes) {
1.12 paf 86: int read_size=0;
87: do {
88: int chunk_size=read
89: (fileno(stdin), buf+read_size, min(0x400*0x400, max_bytes-read_size));
90: if(chunk_size<0)
91: break;
92: read_size+=chunk_size;
93: } while(read_size<max_bytes);
94:
95: return read_size;
1.10 paf 96: }
97:
1.30 ! paf 98: static void add_header_attribute(const char *key, const char *value) {
1.20 paf 99: if(cgi)
100: printf("%s: %s\n", key, value);
1.19 paf 101: }
102:
1.30 ! paf 103: static void send_header(const char *buf, size_t size) {
1.20 paf 104: if(cgi) // header | body delimiter
105: puts("");
1.30 ! paf 106: }
1.20 paf 107:
1.30 ! paf 108: static void send_body(const char *buf, size_t size) {
1.19 paf 109: stdout_write(buf, size);
1.17 paf 110: }
111:
1.30 ! paf 112: /// Service funcs
! 113: Service_funcs service_funcs={
! 114: get_env,
! 115: read_post,
! 116: add_header_attribute,
! 117: send_header,
! 118: send_body
! 119: };
! 120:
! 121:
1.19 paf 122: // main
123:
1.5 paf 124: int main(int argc, char *argv[]) {
1.23 paf 125: // TODO:umask(2);
1.27 paf 126: //\#ifdef WIN32
127: setmode(fileno(stdin), _O_BINARY);
128: setmode(fileno(stdout), _O_BINARY);
129: setmode(fileno(stderr), _O_BINARY);
130: //\#endif
1.12 paf 131:
1.3 paf 132: // were we started as CGI?
1.20 paf 133: cgi=
1.2 paf 134: getenv("SERVER_SOFTWARE") ||
135: getenv("SERVER_NAME") ||
136: getenv("GATEWAY_INTERFACE") ||
137: getenv("REQUEST_METHOD");
1.5 paf 138:
1.10 paf 139: if(!cgi) {
140: if(argc<2) {
141: char *binary=argv[0];
1.13 paf 142: printf("Usage: %s <file>\n", binary?binary:"parser3");
1.10 paf 143: exit(1);
144: }
145: }
146:
1.26 paf 147: char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1];
1.27 paf 148: //\#ifdef WIN32
1.26 paf 149: fix_slashes(filespec_to_process);
1.27 paf 150: //\#endif
1.10 paf 151:
1.5 paf 152: PTRY { // global try
153: // must be first in PTRY{}PCATCH
154: #ifdef WIN32
1.14 paf 155: # if _MSC_VER
1.5 paf 156: SetUnhandledExceptionFilter(&TopLevelExceptionFilter);
157: //TODO: initSocks();
1.8 paf 158: # endif
1.5 paf 159: #endif
1.2 paf 160:
1.10 paf 161: // init global variables
1.9 paf 162: globals_init(pool);
1.10 paf 163:
1.13 paf 164: if(!filespec_to_process)
165: PTHROW(0, 0,
166: 0,
167: "no file to process");
168:
1.10 paf 169: // Request info
170: Request::Info request_info;
1.13 paf 171: const char *document_root=getenv("DOCUMENT_ROOT");
172: if(!document_root) {
173: static char fake_document_root[MAX_STRING];
174: strncpy(fake_document_root, filespec_to_process, MAX_STRING);
175: rsplit(fake_document_root, '/'); rsplit(fake_document_root, '\\');// strip filename
176: document_root=fake_document_root;
177: }
178: request_info.document_root=document_root;
1.10 paf 179: request_info.path_translated=filespec_to_process;
1.15 paf 180: request_info.method=getenv("REQUEST_METHOD");
1.10 paf 181: request_info.query_string=getenv("QUERY_STRING");
1.15 paf 182: request_info.uri=getenv("REQUEST_URI");
1.10 paf 183: request_info.content_type=getenv("CONTENT_TYPE");
184: const char *content_length=getenv("CONTENT_LENGTH");
185: request_info.content_length=(content_length?atoi(content_length):0);
1.21 paf 186: request_info.cookie=getenv("HTTP_COOKIE");
1.10 paf 187:
1.5 paf 188: // prepare to process request
1.27 paf 189: Pool request_pool;
190: Request request(request_pool,
1.10 paf 191: request_info,
1.27 paf 192: cgi ? String::UL_HTML_TYPO : String::UL_NO
1.5 paf 193: );
194:
195: // some root-controlled location
1.30 ! paf 196: char *root_auto_path;
1.3 paf 197: #ifdef WIN32
1.10 paf 198: // c:\windows
1.30 ! paf 199: root_auto_path=(char *)pool.malloc(MAX_STRING);
! 200: GetWindowsDirectory(root_auto_path, MAX_STRING);
! 201: strcat(root_auto_path, "/");
1.3 paf 202: #else
1.10 paf 203: // ~nobody
1.30 ! paf 204: root_auto_path=getenv("HOME");
1.5 paf 205: #endif
206:
207: // beside by binary
1.30 ! paf 208: char *site_auto_path=(char *)pool.malloc(MAX_STRING);
! 209: strncpy(site_auto_path, argv[0], MAX_STRING); // filespec of my binary
! 210: rsplit(site_auto_path, '/'); rsplit(site_auto_path, '\\');// strip filename
! 211: strcat(site_auto_path, "/");
1.5 paf 212:
213: // process the request
1.16 paf 214: request.core(pool.exception(),
1.30 ! paf 215: root_auto_path, false,
! 216: site_auto_path, false);
1.19 paf 217: // no actions with request' data past this point
218: // request.exception not not handled here, but all
219: // request' data are associated with it's pool=exception
1.16 paf 220:
1.22 paf 221: // must be last in PTRY{}PCATCH
1.5 paf 222: #ifdef WIN32
1.14 paf 223: # if _MSC_VER
1.5 paf 224: SetUnhandledExceptionFilter(0);
1.8 paf 225: # endif
1.25 paf 226: #endif
1.16 paf 227: // successful finish
228: return 0;
229: } PCATCH(e) { // global problem
1.19 paf 230: const char *body=e.comment();
231: int content_length=strlen(body);
1.5 paf 232:
1.19 paf 233: // header
234: (*service_funcs.output_header_attribute)("content-type", "text/plain");
235: char content_length_cstr[MAX_NUMBER];
236: snprintf(content_length_cstr, MAX_NUMBER, "%d", content_length);
237: (*service_funcs.output_header_attribute)("content-length",
238: content_length_cstr);
239:
240: // body
241: (*service_funcs.output_body)(body, content_length);
1.2 paf 242:
1.16 paf 243: // unsuccessful finish
244: return 1;
245: }
246: PEND_CATCH
1.1 paf 247: }
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