이 절에서는 PHP, Perl 및 C로 작성한 샘플 FastCGI 응용 프로그램을 소개합니다.
<?php $dir = "/tmp/"; // Open a known directory, and proceed to read its contents if (is_dir($dir)) { if ($dh = opendir($dir)) { while (($file = readdir($dh)) !== false) { echo "filename: $file : filetype: " . filetype($dir . $file) . "\n"; } closedir($dh); } } ?>
위 예에 사용되는 obj.conf 코드:
<Object name="default"> NameTrans fn="assign-name" from="/fcgi/*" name="responder.fcgi" </Object> <Object name="responder.fcgi"> Service fn="responder-fastcgi" app-path="/foo/fastcgi-enabled-php-installation/bin/php" bind-path="localhost:3431" min-procs=3 </Object>
#!/usr/bin/perl use FCGI; while (FCGI::accept >= 0) { if( $ENV{'HTTP_AUTHORIZATION'} ) { # This value can be further decoded to get the actual username and password and then # perform some kind of user validation. This program only checks for the presence of # of this environment param and is not really bothered about its value print( "Status: 200\r\n" ); print( "\r\n" ); } else { print( "Status: 401\r\n" ); print( "WWW-Authenticate: basic realm=\"foo\"\r\n" ); print( "\r\n" ); } } Example obj.conf settings for the above example:
위 예에 사용되는 obj.conf 코드:
<Object name="responder.fcgi"> AuthTrans fn="auth-fastcgi" app-path="/fastcgi/apps/auth/SimpleAuth.pl" bind-path="localhost:3432" Service fn="responder-fastcgi" app-path="/foo/fastcgi-enabled-php-installation/bin/php" bind-path="localhost:3433" app-env="PHP_FCGI_CHILDREN=8" min-procs=1 </Object>
http://localhost/fcgi/php/ListDir.php에 대한 첫 요청이 수신되면 브라우저에 인증 대화 상자가 표시됩니다. 사용자가 사용자 이름과 비밀번호를 입력하고 나면 "/tmp" 디렉토리의 내용이 나열됩니다.
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <fcgi_stdio.h> void main(void) { size_t PageSize = 1024 * 3; char *page; FCGX_Stream *in, *out, *err; FCGX_ParamArray envp; int count=0; page = (char *)malloc(PageSize); if (page == NULL) { printf("Content-type: text/x-server-parsed-html\r\n"); printf("<title>malloc failure</title>"); printf("<h1>Cannot allocate memory to run filter. exiting</h1>"); printf("\r\n\r\n"); exit(2); } while(FCGI_Accept() >= 0) { char *tmp; char *execcgi; char *dataLenStr = NULL; int numchars = 0; int stdinDataSize = 0; int filterDataLen = 0; int dataToBeRead = 0; int x = 0; int loopCount = 0; count++; dataLenStr = getenv("FCGI_DATA_LENGTH"); if(dataLenStr) filterDataLen = atoi(dataLenStr); /* clear out stdin */ while (EOF != getc(stdin)) { stdinDataSize++; } dataToBeRead = filterDataLen; FCGI_StartFilterData(); tmp = page; /** just in case fread or fwrite moves our pointer **/ //start responding printf("Content-type: text/plain\r\n"); printf("\r\n"); /** send a new line at the beginning **/ printf("<title>SIMPLE FILTER</title>"); printf(<h1>This page was Filtered by SimpleFilter FastCGI filter</h1>"); printf("file size=%d<br>", filterDatalen); printf("stdin size=%d<br>, stdinDataSize); while(dataToBeRead > 0 ) { x = 0; page = tmp; if(dataToBeRead > PageSize) x = PageSize; else x = dataToBeRead; numchars = fread((void *)(page), 1, x, stdin); if( numchars == 0 ) continue; /** at this point your data is in page pointer, so do whatever you want with it before sending it back to the server. In this example, no data is manipulated. Only the count of number of times the filter data is read and the total bytes read at the end of every loop is printed. **/ dataToBeRead -= numchars; loopCount++; printf("loop count = %d ... so far read %d bytes <br>", loopCount, (filterDatalen - dataToBeRead)); } printf("\r\n\r\n"); /** send a new line at the end of transfer **/ fflush(stdout); page = tmp; /** restore page pointer **/ memset(page,NULL,numchars); } free(page); }
위 예에 사용되는 obj.conf 설정의 예.
Web Server를 실행하는 시스템과 같은 시스템에서 이 FastCGI 응용 프로그램을 사용할 수 있는 경우
<Object name=<"filter.fcgi"> Service fn="filter-fastcgi" app-path="/fastcgi/apps/filter/SimpleFilter.exe" bind-path="localhost:3434" app-env="LD_LIBRARY_PATH=/fastcgi/fcgi-2.4/libfcgi/.libs" </Object>
응용 프로그램이 원격 시스템에서 실행되는 경우에는 obj.conf 파일에 다음 라인이 포함되어야 합니다.
<Object name="filter.fcgi"> Service fn="filter-fastcgi" bind-path="<remote-host>:<remote-port>" </Object>
Web Server 인스턴스의 docroot 디렉토리에 있는 fcgi 디렉토리 아래에 크기가 "26868"바이트인 "FilterThisFile"이 필터링할 파일인 경우 "http://localhost/fcgi/filter/FilterThisFile"에 대한 요청의 출력은 다음과 같습니다.
This page was Filtered by SimpleFilter FastCGI filter
file size = 26868 |
stdin size = 0 |
loop count = 1... so far read 3072 bytes |
loop count = 2... so far read 6144 bytes |
loop count = 3... so far read 9216 bytes |
loop count = 4... so far read 12288 bytes |
loop count = 5... so far read 15360 bytes |
loop count = 6... so far read 18432 bytes |
loop count = 7... so far read 21504 bytes |
loop count = 8... so far read 24576 bytes |
loop count = 9... so far read 26868 bytes |