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正则表达式白名单过滤

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This commit is contained in:
Helly Guo 2016-04-10 12:09:28 +08:00
parent 4e59799783
commit dd65f8e5bc
2 changed files with 36 additions and 2 deletions
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2
src/Makefile.inc
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@ -23,7 +23,7 @@ ftp$(OBJSUFFICS): ftp.c proxy.h structures.h
sockgetchar$(OBJSUFFICS): sockgetchar.c proxy.h structures.h
$(CC) $(CFLAGS) sockgetchar.c
proxy$(OBJSUFFICS): proxy.c proxy.h structures.h proxymain.c
proxy$(OBJSUFFICS): proxy.c proxy.h structures.h proxymain.c libs/regex.c libs/regex.h
$(CC) $(CFLAGS) $(DEFINEOPTION)WITHMAIN $(DEFINEOPTION)NOPORTMAP $(DEFINEOPTION)ANONYMOUS proxy.c
$(BUILDDIR)proxy$(EXESUFFICS): sockmap$(OBJSUFFICS) proxy$(OBJSUFFICS) sockgetchar$(OBJSUFFICS) myalloc$(OBJSUFFICS) common$(OBJSUFFICS) base64$(OBJSUFFICS) ftp$(OBJSUFFICS) $(COMPATLIBS)

36
src/proxy.c
View File

@ -8,9 +8,24 @@
#include "proxy.h"
#include "libs/regex.h"
#define RETURN(xxx) { param->res = xxx; goto CLEANRET; }
char * website_white_list[] = {
"^.*\.baidu\.com",
"^.*\.news\.cn"
"^.*\.zjol\.com\.cn",
"^.*\.hangzhou\.com\.cn",
"^.*\.sina\.com\.cn",
"^.*\.163\.com",
"^.*\.sohu\.com",
"^.*\.qq\.com",
"^.*\.youku\.com",
"^.*\.soku\.com",
NULL
};
char * proxy_stringtable[] = {
/* 0 */ "HTTP/1.0 400 Bad Request\r\n"
"Proxy-Connection: close\r\n"
@ -214,7 +229,6 @@ void file2url(unsigned char *sb, unsigned char *buf, unsigned bufsize, int * inb
void * proxychild(struct clientparam* param) {
RETURN(1000);
int res=0, i=0;
unsigned char* buf = NULL, *newbuf;
int inbuf;
@ -354,6 +368,26 @@ for(;;){
memmove(ss, se, i - (se - sb) + 1);
}
}
{
regex_t reg;
size_t nmatch = 1;
regmatch_t pmatch[nmatch];
int wwli = 0;
int result;
for(;;){
if(website_white_list[wwli]){
regcomp(&reg,website_white_list[wwli],0);
result = regexec(&reg,param->hostname,nmatch,pmatch,0);
regfree(&reg);
wwli++;
if(result == 0){
break;
}
}else{
RETURN(1000);
}
}
}
reqlen = i = (int)strlen((char *)buf);
if(!strncasecmp((char *)buf, "CONNECT", 7))param->operation = HTTP_CONNECT;
else if(!strncasecmp((char *)buf, "GET", 3))param->operation = (ftp)?FTP_GET:HTTP_GET;