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eopll rewrite

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aixiao 2020-01-21 19:48:05 +08:00
parent 6f7a666bf3
commit 8a44d18f0e
27 changed files with 1910 additions and 2617 deletions
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22
CProxy.ini Normal file
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[server]
uid=3004;
process=2;
timer=60;
local_port=9606;
pid_file=CProxy.pid;
[http]
http_ip=192.168.1.102;
http_port=1080;
http_del="x-online-host,X-Online-Host,host,Host";
http_first="[M] [U] [V]\r\nHost: [host]\r\n";
;strrep = "Windows NT 10.0; Win64; x64->Linux";
;regrep = "Host*.+?->Host: iread.wo.cn:443";
[https]
https_ip=192.168.1.102;
https_port=1080;
https_del="Host,host";
https_first="[M] [U]?aixiao.me [V]\r\nHost: [U]\r\n";
;strrep = "Windows NT 10.0; Win64; x64->Linux";
;regrep = "Host*.+?->Host: hu60.cn:443";

2
conf/cproxy.ini.explain → CProxy.ini.explain
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@ -3,6 +3,8 @@
[server]模块
uid 设置进程UID
process 进程数
timer 超时
local_port 端口
pid_file PID文件

674
LICENSE
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@ -1,674 +0,0 @@
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GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

9
Makefile
View File

@ -2,16 +2,15 @@ CROSS_COMPILE ?=
CC := $(CROSS_COMPILE)gcc
STRIP := $(CROSS_COMPILE)strip
CFLAGS += -g -O2 -Wall -I../iniparser/src -L../iniparser
LIBS = -liniparser -static
OBJ := cproxy
LIBS = -liniparser -pthread -static
OBJ := CProxy
all: cproxy.o conf.o cproxy_request.o cproxy_help.o kill.o
all: proxy.o http.o request.o picohttpparser.o conf.o timeout.o help.o
$(CC) $(CFLAGS) -o $(OBJ) $^ $(LIBS)
$(STRIP) $(OBJ)
-chmod a+x $(OBJ)
.c.o:
$(CC) $(CFLAGS) -c $< $(LIBS)
clean:
rm -rf *.o
rm $(OBJ)

38
README.md
View File

@ -1,10 +1,10 @@
# cproxy
Android本地二级代理.
### CProxy
EPOLL多路复用IO, Android/Linux本地二级代理.
可以修改HTTP协议消息头(request).
可以修改HTTP协议CONNECT方法消息头.
# Build
### Build
git clone https://github.com/niuyuling/cproxy.git
git clone https://github.com/ndevilla/iniparser.git
cd iniparser
@ -12,15 +12,33 @@
cd ../cproxy
make clean; make
# Help Information
cproxy proxy server
windows 10子系统交叉编译:
apt-get install gcc-aarch64-linux-gnu
make clean; CROSS_COMPILE=aarch64-linux-gnu- make
### Help Information
./CProxy -h
CProxy proxy server
Author: aixiao@aixiao.me
Usage: [-?hdsc] [-s signal] [-c filename]
Usage: [-?hpt] [-s signal] [-c filename]
Options:
-?,-h : help information
-d : daemon
-s signal : send signal to a master process: stop, resatrt, reload, status
-c filename : set configuration file (default: conf/cproxy.ini)
-p : process number, default 2 process
-t : timeout minute, default is no timeout
-s signal : send signal to a master process: stop, quit, restart, reload, status
-c filename : set configuration file (default: cproxy.ini)
Jan 13 2020 19:56:06 Compile、link.
#启动
./CProxy -c CProxy.ini
#关闭
./CProxy -s stop
#重启
./CProxy -s reload -c CProxy.ini
or
./CProxy -s restart -c CProxy.ini
#状态
./CProxy -s status
Dec 9 2019 13:36:43 Compile、link.

244
conf.c
View File

@ -1,5 +1,20 @@
#include "conf.h"
char *strncpy_(char *dest, const char *src, size_t n)
{
int size = sizeof(char) * (n + 1);
char *tmp = (char *)malloc(size); // 开辟大小为n+1的临时内存tmp
if (tmp) {
memset(tmp, '\0', size); // 将内存初始化为0
memcpy(tmp, src, size - 1); // 将src的前n个字节拷贝到tmp
memcpy(dest, tmp, size); // 将临时空间tmp的内容拷贝到dest
free(tmp); // 释放内存
return dest;
} else {
return NULL;
}
}
void read_conf(char *file, conf * p)
{
if (access(file, F_OK)) {
@ -12,155 +27,90 @@ void read_conf(char *file, conf * p)
// server module
// uid
p->uid = iniparser_getint(ini, "server:uid", 0);
// process
p->process = iniparser_getint(ini, "server:process", 0);
// timer
p->timer = iniparser_getint(ini, "server:timer", 0);
//local_port
p->server_port = iniparser_getint(ini, "server:local_port", 0);
//pid_file
p->len_server_pid_file =
strlen(iniparser_getstring(ini, "server:pid_file", NULL)) + 1;
p->server_pid_file = (char *)malloc(p->len_server_pid_file);
p->server_pid_file_len = strlen(iniparser_getstring(ini, "server:pid_file", NULL)) + 1;
p->server_pid_file = (char *)malloc(p->server_pid_file_len);
if (p->server_pid_file == NULL) {
goto err;
}
memset(p->server_pid_file, 0, p->len_server_pid_file);
memcpy(p->server_pid_file,
iniparser_getstring(ini, "server:pid_file", NULL),
p->len_server_pid_file);
//printf("%s\n", p->server_pid_file);
memset(p->server_pid_file, 0, p->server_pid_file_len);
memcpy(p->server_pid_file, iniparser_getstring(ini, "server:pid_file", NULL), p->server_pid_file_len);
// http module
// http ip
p->len_http_ip = strlen(iniparser_getstring(ini, "http:http_ip", NULL)) + 1;
p->http_ip = (char *)malloc(p->len_http_ip);
p->http_ip_len = strlen(iniparser_getstring(ini, "http:http_ip", NULL)) + 1;
p->http_ip = (char *)malloc(p->http_ip_len);
if (p->http_ip == NULL) {
goto err;
}
memset(p->http_ip, 0, p->len_http_ip);
memcpy(p->http_ip, iniparser_getstring(ini, "http:http_ip", NULL),
p->len_http_ip);
memset(p->http_ip, 0, p->http_ip_len);
memcpy(p->http_ip, iniparser_getstring(ini, "http:http_ip", NULL), p->http_ip_len);
// http port
p->http_port = iniparser_getint(ini, "http:http_port", 0);
// http del
p->len_http_del =
strlen(iniparser_getstring(ini, "http:http_del", NULL)) + 1;
p->http_del = (char *)malloc(p->len_http_del);
p->http_del_len = strlen(iniparser_getstring(ini, "http:http_del", NULL)) + 1;
p->http_del = (char *)malloc(p->http_del_len);
if (p->http_del == NULL) {
goto err;
}
memset(p->http_del, 0, p->len_http_del);
memcpy(p->http_del, iniparser_getstring(ini, "http:http_del", NULL),
p->len_http_del);
memset(p->http_del, 0, p->http_del_len);
memcpy(p->http_del, iniparser_getstring(ini, "http:http_del", NULL), p->http_del_len);
// http first
p->len_http_first =
strlen(iniparser_getstring(ini, "http:http_first", NULL)) + 1;
p->http_first = (char *)malloc(p->len_http_first);
p->http_first_len = strlen(iniparser_getstring(ini, "http:http_first", NULL)) + 1;
p->http_first = (char *)malloc(p->http_first_len);
if (p->http_first == NULL) {
goto err;
}
memset(p->http_first, 0, p->len_http_first);
memcpy(p->http_first, iniparser_getstring(ini, "http:http_first", NULL),
p->len_http_first);
// https module
// https ip
p->len_https_ip =
strlen(iniparser_getstring(ini, "https:https_ip", NULL)) + 1;
p->https_ip = (char *)malloc(p->len_https_ip);
if (p->https_ip == NULL) {
goto err;
}
memset(p->https_ip, 0, p->len_http_ip);
memcpy(p->https_ip, iniparser_getstring(ini, "https:https_ip", NULL),
p->len_https_ip);
//https port
p->https_port = iniparser_getint(ini, "https:https_port", 0);
// https del
p->len_https_del =
strlen(iniparser_getstring(ini, "https:https_del", NULL)) + 1;
p->https_del = (char *)malloc(p->len_https_del);
if (p->https_del == NULL) {
goto err;
}
memset(p->https_del, 0, p->len_https_del);
memcpy(p->https_del, iniparser_getstring(ini, "https:https_del", NULL),
p->len_https_del);
// https first
p->len_https_first =
strlen(iniparser_getstring(ini, "https:https_first", NULL)) + 1;
p->https_first = (char *)malloc(p->len_https_first);
if (p->https_first == NULL) {
goto err;
}
memset(p->https_first, 0, p->len_https_first);
memcpy(p->https_first, iniparser_getstring(ini, "https:https_first", NULL),
p->len_https_first);
memset(p->http_first, 0, p->http_first_len);
memcpy(p->http_first, iniparser_getstring(ini, "http:http_first", NULL), p->http_first_len);
// http strrep
if (iniparser_find_entry(ini, "http:strrep") == 1) {
p->len_http_strrep =
strlen(iniparser_getstring(ini, "http:strrep", NULL)) + 1;
p->http_strrep = (char *)malloc(p->len_http_strrep);
p->http_strrep_len = strlen(iniparser_getstring(ini, "http:strrep", NULL)) + 1;
p->http_strrep = (char *)malloc(p->http_strrep_len);
if (p->http_strrep == NULL) {
free(p->http_strrep);
}
memset(p->http_strrep, 0, p->len_http_strrep);
memcpy(p->http_strrep, iniparser_getstring(ini, "http:strrep", NULL),
p->len_http_strrep);
memset(p->http_strrep, 0, p->http_strrep_len);
memcpy(p->http_strrep, iniparser_getstring(ini, "http:strrep", NULL), p->http_strrep_len);
char *p1 = strstr(p->http_strrep, "->");
p->http_strrep_aim =
(char *)malloc(strlen(p->http_strrep) - strlen(p1 + 2) - 2 + 1);
p->http_strrep_aim = (char *)malloc(strlen(p->http_strrep) - strlen(p1 + 2) - 2 + 1);
if (p->http_strrep_aim == NULL) {
free(p->http_strrep_aim);
}
strncpy_(p->http_strrep_aim, p->http_strrep,
strlen(p->http_strrep) - strlen(p1 + 2) - 2);
strncpy_(p->http_strrep_aim, p->http_strrep, strlen(p->http_strrep) - strlen(p1 + 2) - 2);
p->http_strrep_obj = (char *)malloc(strlen(p1 + 2) + 1);
if (p->http_strrep_obj == NULL) {
free(p->http_strrep_obj);
}
strncpy_(p->http_strrep_obj, p1 + 2, strlen(p1 + 2));
p->http_strrep_aim_len = strlen(p->http_strrep_aim);
p->http_strrep_obj_len = strlen(p->http_strrep_obj);
}
// https strrep
if (iniparser_find_entry(ini, "https:strrep") == 1) {
p->len_https_strrep =
strlen(iniparser_getstring(ini, "https:strrep", NULL)) + 1;
p->https_strrep = (char *)malloc(p->len_https_strrep);
if (p->https_strrep == NULL) {
free(p->https_strrep);
}
memset(p->https_strrep, 0, p->len_https_strrep);
memcpy(p->https_strrep, iniparser_getstring(ini, "https:strrep", NULL),
p->len_https_strrep);
char *p2 = strstr(p->https_strrep, "->");
p->https_strrep_aim =
(char *)malloc(strlen(p->https_strrep) - strlen(p2 + 2) - 2 + 1);
if (p->https_strrep_aim == NULL) {
free(p->https_strrep_aim);
}
strncpy_(p->https_strrep_aim, p->https_strrep,
strlen(p->https_strrep) - strlen(p2 + 2) - 2);
p->https_strrep_obj = (char *)malloc(strlen(p2 + 2) + 1);
if (p->https_strrep_obj == NULL) {
free(p->https_strrep_obj);
}
strncpy_(p->https_strrep_obj, p2 + 2, strlen(p2 + 2));
}
// http regrep
if (iniparser_find_entry(ini, "http:regrep") == 1) {
p->len_http_regrep =
strlen(iniparser_getstring(ini, "http:regrep", NULL)) + 1;
p->http_regrep = (char *)malloc(p->len_http_regrep);
p->http_regrep_len = strlen(iniparser_getstring(ini, "http:regrep", NULL)) + 1;
p->http_regrep = (char *)malloc(p->http_regrep_len);
if (p->http_regrep == NULL) {
free(p->http_regrep);
}
memset(p->http_regrep, 0, p->len_http_regrep);
memcpy(p->http_regrep, iniparser_getstring(ini, "http:regrep", NULL),
p->len_http_regrep);
memset(p->http_regrep, 0, p->http_regrep_len);
memcpy(p->http_regrep, iniparser_getstring(ini, "http:regrep", NULL), p->http_regrep_len);
char *p3 = strstr(p->http_regrep, "->");
p->http_regrep_aim =
(char *)malloc(strlen(p->http_regrep) - strlen(p3 + 2) - 2 + 1);
@ -174,31 +124,86 @@ void read_conf(char *file, conf * p)
free(p->http_regrep_obj);
}
strncpy_(p->http_regrep_obj, p3 + 2, strlen(p3 + 2));
p->http_regrep_aim_len = strlen(p->http_regrep_aim);
p->http_regrep_obj_len = strlen(p->http_regrep_obj);
}
// https module
// https ip
p->https_ip_len = strlen(iniparser_getstring(ini, "https:https_ip", NULL)) + 1;
p->https_ip = (char *)malloc(p->https_ip_len);
if (p->https_ip == NULL) {
goto err;
}
memset(p->https_ip, 0, p->https_ip_len);
memcpy(p->https_ip, iniparser_getstring(ini, "https:https_ip", NULL), p->https_ip_len);
//https port
p->https_port = iniparser_getint(ini, "https:https_port", 0);
// https del
p->https_del_len = strlen(iniparser_getstring(ini, "https:https_del", NULL)) + 1;
p->https_del = (char *)malloc(p->https_del_len);
if (p->https_del == NULL) {
goto err;
}
memset(p->https_del, 0, p->https_del_len);
memcpy(p->https_del, iniparser_getstring(ini, "https:https_del", NULL), p->https_del_len);
// https first
p->https_first_len = strlen(iniparser_getstring(ini, "https:https_first", NULL)) + 1;
p->https_first = (char *)malloc(p->https_first_len);
if (p->https_first == NULL) {
goto err;
}
memset(p->https_first, 0, p->https_first_len);
memcpy(p->https_first, iniparser_getstring(ini, "https:https_first", NULL), p->https_first_len);
// https strrep
if (iniparser_find_entry(ini, "https:strrep") == 1) {
p->https_strrep_len = strlen(iniparser_getstring(ini, "https:strrep", NULL)) + 1;
p->https_strrep = (char *)malloc(p->https_strrep_len);
if (p->https_strrep == NULL) {
free(p->https_strrep);
}
memset(p->https_strrep, 0, p->https_strrep_len);
memcpy(p->https_strrep, iniparser_getstring(ini, "https:strrep", NULL), p->https_strrep_len);
char *p2 = strstr(p->https_strrep, "->");
p->https_strrep_aim = (char *)malloc(strlen(p->https_strrep) - strlen(p2 + 2) - 2 + 1);
if (p->https_strrep_aim == NULL) {
free(p->https_strrep_aim);
}
strncpy_(p->https_strrep_aim, p->https_strrep, strlen(p->https_strrep) - strlen(p2 + 2) - 2);
p->https_strrep_obj = (char *)malloc(strlen(p2 + 2) + 1);
if (p->https_strrep_obj == NULL) {
free(p->https_strrep_obj);
}
strncpy_(p->https_strrep_obj, p2 + 2, strlen(p2 + 2));
p->https_strrep_aim_len = strlen(p->https_strrep_aim);
p->https_strrep_obj_len = strlen(p->https_strrep_obj);
}
// https regrep
if (iniparser_find_entry(ini, "https:regrep") == 1) {
p->len_https_regrep =
strlen(iniparser_getstring(ini, "https:regrep", NULL)) + 1;
p->https_regrep = (char *)malloc(p->len_https_regrep);
if (p->https_regrep == NULL) {
p->https_regrep_len = strlen(iniparser_getstring(ini, "https:regrep", NULL)) + 1;
p->https_regrep = (char *)malloc(p->https_regrep_len);
if (p->https_regrep == NULL)
free(p->https_regrep);
}
memset(p->https_regrep, 0, p->len_https_regrep);
memcpy(p->https_regrep, iniparser_getstring(ini, "https:regrep", NULL),
p->len_https_regrep);
memset(p->https_regrep, 0, p->https_regrep_len);
memcpy(p->https_regrep, iniparser_getstring(ini, "https:regrep", NULL), p->https_regrep_len);
char *p4 = strstr(p->https_regrep, "->");
p->https_regrep_aim =
(char *)malloc(strlen(p->https_regrep) - strlen(p4 + 2) - 2 + 1);
if (p->https_regrep_aim == NULL) {
p->https_regrep_aim = (char *)malloc(strlen(p->https_regrep) - strlen(p4 + 2) - 2 + 1);
if (p->https_regrep_aim == NULL)
free(p->https_regrep_aim);
}
strncpy_(p->https_regrep_aim, p->https_regrep,
strlen(p->https_regrep) - strlen(p4 + 2) - 2);
strncpy_(p->https_regrep_aim, p->https_regrep, strlen(p->https_regrep) - strlen(p4 + 2) - 2);
p->https_regrep_obj = (char *)malloc(strlen(p4 + 2) + 1);
if (p->https_regrep_obj == NULL) {
if (p->https_regrep_obj == NULL)
free(p->https_regrep_obj);
}
strncpy_(p->https_regrep_obj, p4 + 2, strlen(p4 + 2));
p->https_regrep_aim_len = strlen(p->https_regrep_aim);
p->https_regrep_obj_len = strlen(p->https_regrep_obj);
}
err:
@ -224,6 +229,7 @@ err:
void free_conf(conf * p)
{
free(p->server_pid_file);
free(p->http_ip);
free(p->http_del);
free(p->http_first);

38
conf.h
View File

@ -2,9 +2,45 @@
#define CONF_H
#include "iniparser.h"
#include "cproxy.h"
#include <unistd.h>
// 配置文件结构
typedef struct CONF {
// server module
int uid;
int process;
int timer;
int server_port;
char *server_pid_file;
int server_pid_file_len; // length
// http module
int http_port;
char *http_ip, *http_del, *http_first;
int http_ip_len, http_del_len, http_first_len;
char *http_strrep, *http_regrep;
int http_strrep_len, http_regrep_len;
char *http_strrep_aim, *http_strrep_obj;
int http_strrep_aim_len, http_strrep_obj_len;
char *http_regrep_aim, *http_regrep_obj;
int http_regrep_aim_len, http_regrep_obj_len;
// https module
int https_port;
char *https_ip, *https_del, *https_first;
int https_ip_len, https_del_len, https_first_len;
char *https_strrep, *https_regrep;
int https_strrep_len, https_regrep_len;
char *https_strrep_aim, *https_strrep_obj;
int https_strrep_aim_len, https_strrep_obj_len;
char *https_regrep_aim, *https_regrep_obj;
int https_regrep_aim_len, https_regrep_obj_len;
} conf;
char *strncpy_(char *dest, const char *src, size_t n);
void read_conf(char *file, conf * p);
void free_conf(conf * p);

19
conf/cproxy.ini
View File

@ -1,19 +0,0 @@
[server]
uid=3004;
local_port=9606;
pid_file=log/cproxy.pid;
[http]
http_ip=10.0.0.172;
http_port=80;
http_del="x-online-host,X-Online-Host,host,Host";
http_first="[M] [U] [V]\r\n.aixiao.me\rx-online-host: [host]\r\nhost: iread.wo.cn\r\n";
strrep = "Mi MIX 2->Linux";
[https]
https_ip=10.0.0.172;
https_port=80;
https_del=",Host";
https_first="[M] iread.wo.cn//https://[host]:[port]#iread.wo.cn [V]\r\nhost: iread.wo.cn:443\r\n";
strrep = "Mi MIX 2->Linux";
regrep = "Host*.+?->Host: iread.wo.cn:443";

17
conf/cproxy.transparent.ini
View File

@ -1,17 +0,0 @@
[server]
uid=3004;
local_port=9606;
pid_file=log/cproxy.pid;
[http]
http_ip=10.0.0.172;
http_port=80;
http_del="x-online-host,X-Online-Host,host,Host";
http_first="[M] [U] [V]\r\nhost: [host]\r\n";
[https]
https_ip=192.168.1.102;
https_port=1080;
https_del="Host";
https_first="[M] [U] [V]\r\nhost: [H]\r\n";

438
cproxy.c
View File

@ -1,438 +0,0 @@
#include "cproxy.h"
#include "kill.h"
char *read_data(int client_sock, char *data, int *data_len)
{
char *new_data;
int read_len;
do {
new_data = (char *)realloc(data, *data_len + BUF_SIZE + 1);
if (new_data == NULL) {
free(data);
return NULL;
}
data = new_data;
read_len = read(client_sock, data + *data_len, BUF_SIZE);
if (read_len <= 0) {
if (read_len == 0 || *data_len == 0 || errno != EAGAIN) {
free(data);
return NULL;
}
break;
}
*data_len += read_len;
} while (read_len == BUF_SIZE);
*(data + *data_len) = '\0';
return data;
}
void servertoclient(int remote_sock, int client_sock, char *complete_data,
int *len_complete_data)
{
while ((*len_complete_data =
read(remote_sock, complete_data, BUF_SIZE)) > 0) {
write(client_sock, complete_data, *len_complete_data);
}
return;
}
void clienttoserver(int remote_sock, char *complete_data,
int *len_complete_data)
{
write(remote_sock, complete_data, *len_complete_data);
complete_data = NULL;
complete_data = 0;
return;
}
// 处理客户端的连接
void handle_client(int client_sock, struct sockaddr_in client_addr,
conf * configure)
{
read_data(client_sock, header_buffer, &len_header_buffer); // 第一次读取客户端(浏览器)数据
SIGN = request_type(header_buffer); // 获取请求消息类型
extract_host(header_buffer); // 提取真实Host
replacement_http_head(header_buffer, remote_host, &remote_port, &SIGN,
configure);
//printf("%s", header_buffer);
if ((remote_sock = create_connection(configure, SIGN)) < 0) {
return;
}
if (fork() == 0) {
if (SIGN == HTTP_CONNECT) {
clienttoserver(remote_sock, header_buffer, &len_header_buffer);
forward_data(client_sock, remote_sock);
} else if (SIGN == HTTP_OTHERS || SIGN == HTTP) {
forward_header(remote_sock); //普通的http请求先转发header
forward_data(client_sock, remote_sock);
}
_exit(0);
}
if (fork() == 0) {
if (SIGN == HTTP_CONNECT) {
//servertoclient(remote_sock, client_sock, complete_data, &len_complete_data);
forward_data(remote_sock, client_sock);
} else if (SIGN == HTTP_OTHERS || SIGN == HTTP) {
forward_data(remote_sock, client_sock);
}
_exit(0);
}
close(client_sock);
close(remote_sock);
return;
}
int send_data(int socket, char *buffer, int len)
{
return send(socket, buffer, len, 0);
}
int receive_data(int socket, char *buffer, int len)
{
int n = recv(socket, buffer, len, 0);
return n;
}
void forward_data(int source_sock, int destination_sock)
{
char buffer[BUF_SIZE];
int n;
while ((n = receive_data(source_sock, buffer, BUF_SIZE)) > 0) {
send_data(destination_sock, buffer, n);
}
shutdown(destination_sock, SHUT_RDWR);
shutdown(source_sock, SHUT_RDWR);
return;
}
int create_connection(conf * configure, int SIGN)
{
struct sockaddr_in server_addr;
struct hostent *server = NULL;
int sock;
int optval;
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
return CLIENT_SOCKET_ERROR;
}
if (SIGN == HTTP_CONNECT) {
if ((server = gethostbyname(configure->https_ip)) == NULL) {
errno = EFAULT;
return CLIENT_RESOLVE_ERROR;
}
} else if (SIGN == HTTP_OTHERS || SIGN == HTTP) {
if ((server = gethostbyname(configure->http_ip)) == NULL) {
errno = EFAULT;
return CLIENT_RESOLVE_ERROR;
}
}
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
memcpy(&server_addr.sin_addr.s_addr, server->h_addr, server->h_length);
if (SIGN == HTTP_CONNECT) {
server_addr.sin_port = htons(configure->https_port);
} else if (SIGN == HTTP_OTHERS || SIGN == HTTP) {
server_addr.sin_port = htons(configure->http_port);
}
struct linger so_linger;
so_linger.l_onoff = 1;
so_linger.l_linger = 0;
if (setsockopt(sock, SOL_SOCKET, SO_LINGER, &so_linger, sizeof so_linger) <
0) {
return SERVER_SETSOCKOPT_ERROR;
}
if (setsockopt
(server_sock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) < 0) {
return SERVER_SETSOCKOPT_ERROR;
}
if (connect(sock, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
return CLIENT_CONNECT_ERROR;
}
return sock;
}
int create_server_socket(int port)
{
int server_sock;
int optval;
struct sockaddr_in server_addr;
if ((server_sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
return SERVER_SOCKET_ERROR;
}
struct linger so_linger;
so_linger.l_onoff = 1;
so_linger.l_linger = 0;
if (setsockopt
(server_sock, SOL_SOCKET, SO_LINGER, &so_linger,
sizeof so_linger) < 0) {
return SERVER_SETSOCKOPT_ERROR;
}
if (setsockopt
(server_sock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) < 0) {
return SERVER_SETSOCKOPT_ERROR;
}
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(port);
server_addr.sin_addr.s_addr = INADDR_ANY;
if (bind(server_sock, (struct sockaddr *)&server_addr, sizeof(server_addr))
!= 0) {
return SERVER_BIND_ERROR;
}
if (listen(server_sock, 20) < 0) {
return SERVER_LISTEN_ERROR;
}
return server_sock;
}
// 守护
int init_daemon(int nochdir, int noclose, conf * configure, char *path)
{
char *p = strcat(path, configure->server_pid_file);
FILE *fp = fopen(p, "w");
if (fp == NULL) {
fclose(fp);
printf("%s Open Failed\n", p);
exit(1);
}
int pid;
if ((pid = fork()) < 0) {
return -1;
} else if (0 != pid) {
exit(0);
}
//child 1 continues...
//become session leader
if (setsid() < 0) {
return -1;
}
signal(SIGHUP, SIG_IGN);
if ((pid = fork()) < 0) {
return -1;
} else if (0 != pid) {
fprintf(fp, "%d", pid);
exit(0);
}
//child 2 continues...
//change working directory
if (0 == nochdir) {
chdir("/");
}
//redirect stdin,stdout,stderror to "/dev/null"
if (0 == noclose) {
open("/dev/null", O_RDONLY);
open("/dev/null", O_RDWR);
open("/dev/null", O_RDWR);
}
fclose(fp);
return 0;
}
// 处理僵尸进程
void sigchld_handler(int signal)
{
while (waitpid(-1, NULL, WNOHANG) > 0) ;
return;
}
void server_loop(conf * configure)
{
struct sockaddr_in client_addr;
socklen_t addrlen = sizeof(client_addr);
while (1) {
client_sock =
accept(server_sock, (struct sockaddr *)&client_addr, &addrlen);
if (fork() == 0) { // 创建子进程处理客户端连接请求
close(server_sock);
handle_client(client_sock, client_addr, configure);
exit(0);
}
close(client_sock);
}
close(server_sock);
return;
}
void start_server(conf * configure)
{
signal(SIGCHLD, sigchld_handler); // 防止子进程变成僵尸进程
if ((server_sock = create_server_socket(local_port)) < 0) {
exit(server_sock);
}
server_loop(configure);
return;
}
void get_pid(char *proces_name)
{
char bufer[PATH_SIZE];
char comm[PATH_SIZE];
char proc_comm_name[PATH_SIZE];
int num[PATH_SIZE] = { 0 };
int n = 0;
FILE *fp;
DIR *dir;
struct dirent *ptr;
dir = opendir("/proc");
while ((ptr = readdir(dir)) != NULL) {
if (ptr->d_type == 4 && strcasecmp(ptr->d_name, ".")
&& strcasecmp(ptr->d_name, "..")) {
bzero(bufer, 0);
sprintf(comm, "/proc/%s/comm", ptr->d_name);
if (access(comm, F_OK) == 0) {
fp = fopen(comm, "r");
if (fgets(bufer, PATH_SIZE - 1, fp) == NULL) {
fclose(fp);
continue;
}
sscanf(bufer, "%s", proc_comm_name);
if (!strcmp(proces_name, proc_comm_name)) {
num[n] = atoi(ptr->d_name);
n += 1;
}
fclose(fp);
}
}
}
n -= 2; // 去除最后一个搜索时的本身进程
for (; n >= 0; n--) {
printf("\t%d\n", num[n]);
}
closedir(dir);
return;
}
int stop(int signal, char *program_name)
{
if (signal == 1) {
struct passwd *pwent = NULL;
pwent = getpwnam("root");
return kill_all(15, 1, &program_name, pwent);
}
if (signal == 2) {
get_pid(program_name);
return 0;
}
return 0;
}
int get_executable_path(char *processdir, char *processname, int len)
{
char *filename;
if (readlink("/proc/self/exe", processdir, len) <= 0) {
return -1;
}
filename = strrchr(processdir, '/');
if (filename == NULL)
return -1;
++filename;
strcpy(processname, filename);
*filename = '\0';
return (int)(filename - processdir);
}
int _main(int argc, char *argv[])
{
// 初始化全局变量
header_buffer = (char *)malloc(BUF_SIZE);
len_header_buffer = strlen(header_buffer);
char *inifile = "conf/cproxy.ini";
char path[PATH_SIZE] = { 0 };
char executable_filename[PATH_SIZE] = { 0 };
(void)get_executable_path(path, executable_filename, sizeof(path));
inifile = strcat(path, inifile);
conf *configure = (struct CONF *)malloc(sizeof(struct CONF));
read_conf(inifile, configure);
local_port = configure->server_port;
int opt;
char optstrs[] = ":l:ds:c:h?";
while (-1 != (opt = getopt(argc, argv, optstrs))) {
switch (opt) {
case 'l':
local_port = atoi(optarg);
break;
case 'd':
(void)get_executable_path(path, executable_filename, sizeof(path));
init_daemon(1, 1, configure, path);
break;
case 's':
if (strcasecmp(optarg, "stop") == 0
|| strcasecmp(optarg, "quit") == 0) {
free_conf(configure);
free(header_buffer);
exit(stop(1, executable_filename));
}
if (strcasecmp(optarg, "restart") == 0
|| strcasecmp(optarg, "reload") == 0) {
stop(1, executable_filename);
}
if (strcasecmp(optarg, "status") == 0) {
exit(stop(2, executable_filename));
}
break;
case 'c':
free_conf(configure); // 如果指定-c参数就释放上次分配的内存
inifile = optarg;
read_conf(inifile, configure);
break;
case 'h':
case '?':
help_information();
exit(0);
break;
default:
;
}
}
if (setegid(configure->uid) == -1 || seteuid(configure->uid) == -1) // 设置uid
exit(1);
start_server(configure);
free_conf(configure);
free(header_buffer);
return 0;
}
int main(int argc, char *argv[])
{
return _main(argc, argv);
}

104
cproxy.h
View File

@ -1,104 +0,0 @@
#ifndef CPROXY_H
#define CPROXY_H
#include <arpa/inet.h>
#include <errno.h>
#include <libgen.h>
#include <netdb.h>
#include <resolv.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#include <sys/wait.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
#define PATH_SIZE 270
#define BUF_SIZE 8192
#define BUF_SIZES 1024
#define SERVER_SOCKET_ERROR -1
#define SERVER_SETSOCKOPT_ERROR -2
#define SERVER_BIND_ERROR -3
#define SERVER_LISTEN_ERROR -4
#define CLIENT_SOCKET_ERROR -5
#define CLIENT_RESOLVE_ERROR -6
#define CLIENT_CONNECT_ERROR -7
char remote_host[128];
int remote_port;
int local_port;
int server_sock;
int client_sock;
int remote_sock;
char *header_buffer;
int len_header_buffer;
int SIGN;
// 配置文件结构
typedef struct CONF {
int uid;
int server_port; // server module
char *server_pid_file;
int http_port; // http module
char *http_ip, *http_del, *http_first;
int https_port; // https module
char *https_ip, *https_del, *https_first;
int len_server_pid_file; // length
int len_http_ip, len_http_del, len_http_first;
int len_https_ip, len_https_del, len_https_first;
char *http_strrep, *http_regrep, *https_strrep, *https_regrep;
char *http_strrep_aim, *http_strrep_obj;
char *https_strrep_aim, *https_strrep_obj;
char *http_regrep_aim, *http_regrep_obj;
char *https_regrep_aim, *https_regrep_obj;
int len_http_strrep, len_http_regrep;
int len_https_strrep, len_https_regrep;
} conf;
// 请求类型
#define OTHER 1
#define HTTP 2
#define HTTP_OTHERS 3
#define HTTP_CONNECT 4
char *read_data(int client_sock, char *data, int *data_len);
void servertoclient(int remote_sock, int client_sock, char *complete_data, int *len_complete_data);
void clienttoserver(int remote_sock, char *complete_data, int *len_complete_data);
void handle_client(int client_sock, struct sockaddr_in client_addr, conf *configure);
int send_data(int socket, char *buffer, int len);
int receive_data(int socket, char *buffer, int len);
void forward_data(int source_sock, int destination_sock);
int create_connection(conf *configure, int SIGN);
int create_server_socket(int port);
int init_daemon(int nochdir, int noclose, conf *configure, char *path);
void sigchld_handler(int signal);
void server_loop(conf *configure);
void start_server(conf *configure);
int _main(int argc, char *argv[]);
void read_conf(char *file, conf *p);
void free_conf(conf *p);
int extract_host(char *header);
int replacement_http_head(char *header_buffer, char *remote_host, int *remote_port, int *SIGN, conf *p);
uint8_t request_type(char *req);
void forward_header(int destination_sock);
void rewrite_header();
char help_information(void);
#endif

637
cproxy_request.c
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@ -1,637 +0,0 @@
#include "cproxy_request.h"
// 字符串替换
char *replace(char *replace_memory, int *replace_memory_len, const char *src,
const int src_len, const char *dest, const int dest_len)
{
if (!replace_memory || !src || !dest)
return replace_memory;
char *p;
int diff;
if (src_len == dest_len) {
for (p = memmem(replace_memory, *replace_memory_len, src, src_len); p;
p =
memmem(p, *replace_memory_len - (p - replace_memory), src,
src_len)) {
memcpy(p, dest, dest_len);
p += dest_len;
}
} else if (src_len < dest_len) {
int before_len;
char *before_end, *new_replace_memory;
diff = dest_len - src_len;
for (p = memmem(replace_memory, *replace_memory_len, src, src_len); p;
p =
memmem(p, *replace_memory_len - (p - replace_memory), src,
src_len)) {
*replace_memory_len += diff;
before_len = p - replace_memory;
new_replace_memory =
(char *)realloc(replace_memory, *replace_memory_len + 1);
if (new_replace_memory == NULL) {
free(replace_memory);
return NULL;
}
replace_memory = new_replace_memory;
before_end = replace_memory + before_len;
p = before_end + dest_len;
memmove(p, p - diff, *replace_memory_len - (p - replace_memory));
memcpy(before_end, dest, dest_len);
}
} else if (src_len > dest_len) {
diff = src_len - dest_len;
for (p = memmem(replace_memory, *replace_memory_len, src, src_len); p;
p =
memmem(p, *replace_memory_len - (p - replace_memory), src,
src_len)) {
*replace_memory_len -= diff;
memcpy(p, dest, dest_len);
p += dest_len;
memmove(p, p + diff, *replace_memory_len - (p - replace_memory));
}
}
replace_memory[*replace_memory_len] = '\0';
return replace_memory;
}
/* 正则表达式字符串替换，str为可用free释放的指针 */
static char *regrep(char *str, int *str_len, const char *src, char *dest,
int dest_len)
{
if (!str || !src || !dest)
return NULL;
regmatch_t pm[10];
regex_t reg;
char child_num[2] = { '\\', '0' }, *p, *real_dest;
int match_len, real_dest_len, i;
p = str;
regcomp(&reg, src, REG_NEWLINE | REG_ICASE | REG_EXTENDED);
while (regexec(&reg, p, 10, pm, 0) == 0) {
real_dest = (char *)malloc(dest_len);
if (real_dest == NULL) {
regfree(&reg);
free(str);
return NULL;
}
memcpy(real_dest, dest, dest_len);
real_dest_len = dest_len;
//不进行不必要的字符串操作
if (pm[1].rm_so >= 0) {
/* 替换目标字符串中的子表达式 */
for (i = 1; i < 10 && pm[i].rm_so > -1; i++) {
child_num[1] = i + 48;
real_dest =
replace(real_dest, &real_dest_len, child_num, 2,
p + pm[i].rm_so, pm[i].rm_eo - pm[i].rm_so);
if (real_dest == NULL) {
regfree(&reg);
free(str);
return NULL;
}
}
}
match_len = pm[0].rm_eo - pm[0].rm_so;
p += pm[0].rm_so;
//目标字符串不大于匹配字符串则不用分配新内存
if (match_len >= real_dest_len) {
memcpy(p, real_dest, real_dest_len);
if (match_len > real_dest_len)
//strcpy(p + real_dest_len, p + match_len);
memmove(p + real_dest_len, p + match_len,
*str_len - (p + match_len - str));
p += real_dest_len;
*str_len -= match_len - real_dest_len;
} else {
int diff;
char *before_end, *new_str;
diff = real_dest_len - match_len;
*str_len += diff;
new_str = (char *)realloc(str, *str_len + 1);
if (new_str == NULL) {
free(str);
free(real_dest);
regfree(&reg);
return NULL;
}
str = new_str;
before_end = str + pm[0].rm_so;
p = before_end + real_dest_len;
memmove(p, p - diff, *str_len - (p - str) + 1);
memcpy(before_end, real_dest, real_dest_len);
}
free(real_dest);
}
regfree(&reg);
return str;
}
// 删除单个字符
void del_chr(char *s, char ch)
{
char *t = s; // 目标指针先指向原串头
while (*s != '\0') // 遍历字符串s
{
if (*s != ch) // 如果当前字符不是要删除的，则保存到目标串中
*t++ = *s;
s++; // 检查下一个字符
}
*t = '\0'; // 置目标串结束符。
}
// strncpy()封装
char *strncpy_(char *dest, const char *src, size_t n)
{
int size = sizeof(char) * (n + 1);
char *tmp = (char *)malloc(size); // 开辟大小为n+1的临时内存tmp
if (tmp) {
memset(tmp, '\0', size); // 将内存初始化为0
memcpy(tmp, src, size - 1); // 将src的前n个字节拷贝到tmp
memcpy(dest, tmp, size); // 将临时空间tmp的内容拷贝到dest
free(tmp); // 释放内存
return dest;
} else {
return NULL;
}
}
uint8_t request_type(char *req)
{
if (strncmp(req, "GET", 3) == 0 || strncmp(req, "POST", 4) == 0)
return HTTP;
else if (strncmp(req, "CONNECT", 7) == 0)
return HTTP_CONNECT;
else if (strncmp(req, "HEAD", 4) == 0 ||
strncmp(req, "PUT", 3) == 0 ||
strncmp(req, "OPTIONS", 7) == 0 ||
strncmp(req, "MOVE", 4) == 0 ||
strncmp(req, "COPY", 4) == 0 ||
strncmp(req, "TRACE", 5) == 0 ||
strncmp(req, "DELETE", 6) == 0 ||
strncmp(req, "LINK", 4) == 0 ||
strncmp(req, "UNLINK", 6) == 0 ||
strncmp(req, "PATCH", 5) == 0 || strncmp(req, "WRAPPED", 7) == 0)
return HTTP_OTHERS;
else
return OTHER;
}
int extract_host(char *header)
{
char *_p = strstr(header, "CONNECT"); // 在 CONNECT 方法中解析 隧道主机名称及端口号
if (_p) {
char *_p1 = strchr(_p, ' ');
char *_p2 = strchr(_p1 + 1, ':');
char *_p3 = strchr(_p1 + 1, ' ');
if (_p2) {
char s_port[10];
bzero(s_port, 10);
strncpy(remote_host, _p1 + 1, (int)(_p2 - _p1) - 1);
strncpy(s_port, _p2 + 1, (int)(_p3 - _p2) - 1);
remote_port = atoi(s_port);
} else {
strncpy(remote_host, _p1 + 1, (int)(_p3 - _p1) - 1);
remote_port = 80;
}
return 0;
}
char *p = strstr(header, "Host:");
if (!p) {
return -1;
}
char *p1 = strchr(p, '\n');
if (!p1) {
return -1;
}
char *p2 = strchr(p + 5, ':'); // 5是指'Host:'的长度
if (p2 && p2 < p1) {
int p_len = (int)(p1 - p2 - 1);
char s_port[p_len];
strncpy(s_port, p2 + 1, p_len);
s_port[p_len] = '\0';
remote_port = atoi(s_port);
int h_len = (int)(p2 - p - 5 - 1);
strncpy(remote_host, p + 5 + 1, h_len); // Host:
remote_host[h_len] = '\0';
} else {
int h_len = (int)(p1 - p - 5 - 1 - 1);
strncpy(remote_host, p + 5 + 1, h_len);
remote_host[h_len] = '\0';
remote_port = 80;
}
return 0;
}
// 转发头字符串到destination_sock
void forward_header(int destination_sock)
{
rewrite_header();
int len = strlen(header_buffer);
send_data(destination_sock, header_buffer, len);
return;
}
// 代理中的完整URL转发前需改成 path 的形式
void rewrite_header()
{
char *p = strstr(header_buffer, "http://");
char *p0 = strchr(p, '\0');
char *p5 = strstr(header_buffer, "HTTP/"); // "HTTP/" 是协议标识 如 "HTTP/1.1"
int len = strlen(header_buffer);
if (p) {
char *p1 = strchr(p + 7, '/');
if (p1 && (p5 > p1)) {
// 转换url到 path
memcpy(p, p1, (int)(p0 - p1));
int l = len - (p1 - p);
header_buffer[l] = '\0';
} else {
char *p2 = strchr(p, ' '); // GET http://3g.sina.com.cn HTTP/1.1
memcpy(p + 1, p2, (int)(p0 - p2));
*p = '/'; // url 没有路径使用根
int l = len - (p2 - p) + 1;
header_buffer[l] = '\0';
}
}
return;
}
// 判断数字有几位
int numbin(int n)
{
int sum = 0;
while (n) {
sum++;
n /= 10;
}
return sum;
}
// 删除字符串header_buffer中第一位到character处,并拼接string,character为空返回原字符串.(string替换第一个字符到character处)
char *splice_head(char *header_buffer, const char *character, char *string)
{
int len_first = strlen(string);
char *p1 = strstr(header_buffer, character);
if (p1 == NULL) {
return header_buffer;
}
p1 = p1 + 1;
char new_string[len_first + strlen(p1) + 1];
strcpy(new_string, string); // 拼接
return strcat(new_string, p1);
}
// 删除字符串header_buffer中character到string处,character为空返回原字符串.
char *delete_header(char *header_buffer, const char *character, int string)
{
int len_header_buffer = strlen(header_buffer);
char *p1 = strstr(header_buffer, character);
if (p1 == NULL) {
return header_buffer;
}
char *p2 = strchr(p1, string);
int l = len_header_buffer - strlen(p1);
header_buffer[l] = '\0';
return strcat(header_buffer, p2 + 1);
}
char *splice_host_port(char *tmp, char *host, char *port)
{
//memset(tmp, 0, strlen(tmp));
bzero(tmp, strlen(tmp));
strcat(tmp, host);
strcat(tmp, ":");
return strcat(tmp, port);
}
int replacement_http_head(char *header_buffer, char *remote_host,
int *remote_port, int *SIGN, conf * p)
{
char *http_firsts = (char *)malloc(strlen(p->http_first) + 1);
if (http_firsts) {
strcpy(http_firsts, p->http_first); // 拷贝http_first
} else {
free(http_firsts);
return 0;
}
char *https_firsts = (char *)malloc(strlen(p->https_first) + 1);
if (https_firsts) {
strcpy(https_firsts, p->https_first); // 拷贝https_first
} else {
free(https_firsts);
return 0;
}
char *header_buffer_backup = (char *)malloc(strlen(header_buffer) + 1); // 拷贝原字符串
if (header_buffer_backup) {
strcpy(header_buffer_backup, header_buffer);
} else {
free(header_buffer_backup);
return 0;
}
char *new_http_del = malloc(strlen(p->http_del) + 1); // 拷贝http_del
if (new_http_del) {
strcpy(new_http_del, p->http_del);
} else {
free(new_http_del);
return 0;
}
char *new_https_del = malloc(strlen(p->https_del) + 1); // 拷贝https_del
if (new_https_del) {
strcpy(new_https_del, p->https_del);
} else {
free(new_https_del);
return 0;
}
if (*SIGN == HTTP) {
char *result = NULL;
result = strtok(new_http_del, ",");
while (result != NULL) {
delete_header(header_buffer_backup, result, '\n');
result = strtok(NULL, ",");
}
char *p2 = strstr(header_buffer_backup, "\n");
p2 = p2 + 1;
int len_http_head = strlen(header_buffer_backup) - strlen(p2);
char *HTTP_HEAD = (char *)malloc(len_http_head + 1); // http头第一行
if (HTTP_HEAD) {
strncpy_(HTTP_HEAD, header_buffer_backup, len_http_head);
} else {
free(HTTP_HEAD);
return 0;
}
// M
char *p3 = strstr(HTTP_HEAD, " ");
int l = strlen(HTTP_HEAD) - strlen(p3);
char *M = malloc(l + 1);
if (M) {
strncpy_(M, HTTP_HEAD, l);
//printf("%s", M);
} else {
free(M);
return 0;
}
// U
p3 = p3 + 1;
char *p4 = strstr(p3, " ");
l = strlen(p3) - strlen(p4);
char *U = (char *)malloc(l + 1);
if (U) {
strncpy_(U, p3, l);
//printf("%s", U);
} else {
free(U);
return 0;
}
// V
p4 = p4 + 1;
del_chr(p4, '\r');
del_chr(p4, '\n');
l = strlen(p4);
char *V = (char *)malloc(l);
if (V) {
strcpy(V, p4);
//printf("%s", V);
} else {
free(V);
return 0;
}
char *new_header_buffer =
(char *)
malloc(strlen(splice_head(header_buffer_backup, "\n", http_firsts))
+ 1);
if (new_header_buffer) {
strcpy(new_header_buffer,
splice_head(header_buffer_backup, "\n", http_firsts));
} else {
free(new_header_buffer);
return 0;
}
int len = strlen(new_header_buffer);
int len_m = strlen(M);
int len_u = strlen(U);
int len_v = strlen(V);
int len_remote_host = strlen(remote_host);
new_header_buffer =
replace(new_header_buffer, &len, "[M]", 3, M, len_m);
new_header_buffer =
replace(new_header_buffer, &len, "[U]", 3, U, len_u);
new_header_buffer =
replace(new_header_buffer, &len, "[V]", 3, V, len_v);
new_header_buffer =
replace(new_header_buffer, &len, "[host]", 6, remote_host,
len_remote_host);
char port_copy[(numbin(*remote_port) + 2)];
sprintf(port_copy, "%d", *remote_port);
int len_remote_port = strlen(port_copy);
new_header_buffer =
replace(new_header_buffer, &len, "[port]", 6, port_copy,
len_remote_port);
char H[(len_remote_port + len_remote_host) + 1];
splice_host_port(H, remote_host, port_copy);
int len_h = strlen(H);
new_header_buffer =
replace(new_header_buffer, &len, "[H]", 3, H, len_h);
new_header_buffer = replace(new_header_buffer, &len, "\\r", 2, "\r", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\n", 2, "\n", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\b", 2, "\b", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\v", 2, "\v", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\f", 2, "\f", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\a", 2, "\a", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\t", 2, "\t", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\r", 2, "\r", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\n", 2, "\n", 1);
if (p->http_strrep) {
int regrep_aim_len = strlen(p->http_strrep_aim);
int regrep_obj_len = strlen(p->http_strrep_obj);
new_header_buffer =
replace(new_header_buffer, &len, p->http_strrep_aim,
regrep_aim_len, p->http_strrep_obj, regrep_obj_len);
}
if (p->http_regrep) {
len = strlen(new_header_buffer) + 1;
new_header_buffer =
regrep(new_header_buffer, &len, p->http_regrep_aim,
p->http_regrep_obj, strlen(p->http_regrep_obj));
}
//stpcpy(p->http_ip, remote_host);
//p->http_port = *remote_port;
memset(header_buffer, 0, strlen(header_buffer));
strcpy(header_buffer, new_header_buffer);
len_header_buffer = strlen(header_buffer);
free(HTTP_HEAD);
free(M);
free(U);
free(V);
free(new_header_buffer);
} else if (*SIGN == HTTP_CONNECT) {
char *result = NULL;
result = strtok(new_https_del, ",");
while (result != NULL) {
delete_header(header_buffer_backup, result, '\n');
result = strtok(NULL, ",");
}
char *p2 = strstr(header_buffer_backup, "\n");
p2 = p2 + 1;
int len_https_head = strlen(header_buffer_backup) - strlen(p2);
char *HTTPS_HEAD = (char *)malloc(len_https_head + 1); // https头第一行
if (HTTPS_HEAD) {
strncpy_(HTTPS_HEAD, header_buffer_backup, len_https_head);
} else {
free(HTTPS_HEAD);
return 0;
}
// M
char *p3 = strstr(HTTPS_HEAD, " ");
int l = strlen(HTTPS_HEAD) - strlen(p3);
char *M = malloc(l + 1);
if (M) {
strncpy_(M, HTTPS_HEAD, l);
} else {
free(M);
return 0;
}
// U
p3 = p3 + 1;
char *p4 = strstr(p3, " ");
l = strlen(p3) - strlen(p4);
char *U = (char *)malloc(l + 1);
if (U) {
strncpy_(U, p3, l);
//printf("%s", U);
} else {
free(U);
return 0;
}
// V
p4 = p4 + 1;
l = strlen(p4);
char *V = (char *)malloc(l);
if (V) {
strncpy_(V, p4, 8);
//printf("%s", V);
} else {
free(V);
return 0;
}
char *new_header_buffer =
(char *)
malloc(strlen(splice_head(header_buffer_backup, "\n", https_firsts))
+ 1);
if (new_header_buffer) {
strcpy(new_header_buffer,
splice_head(header_buffer_backup, "\n", https_firsts));
} else {
free(new_header_buffer);
return 0;
}
int len = strlen(new_header_buffer);
int len_m = strlen(M);
int len_u = strlen(U);
int len_v = strlen(V);
int len_remote_host = strlen(remote_host);
new_header_buffer =
replace(new_header_buffer, &len, "[M]", 3, M, len_m);
new_header_buffer =
replace(new_header_buffer, &len, "[U]", 3, U, len_u);
new_header_buffer =
replace(new_header_buffer, &len, "[V]", 3, V, len_v);
new_header_buffer =
replace(new_header_buffer, &len, "[host]", 6, remote_host,
len_remote_host);
char port_copy[(numbin(*remote_port) + 2)];
sprintf(port_copy, "%d", *remote_port);
int len_remote_port = strlen(port_copy);
new_header_buffer =
replace(new_header_buffer, &len, "[port]", 6, port_copy,
len_remote_port);
char H[(len_remote_port + len_remote_host) + 1];
splice_host_port(H, remote_host, port_copy);
int len_h = strlen(H);
new_header_buffer =
replace(new_header_buffer, &len, "[H]", 3, H, len_h);
new_header_buffer = replace(new_header_buffer, &len, "\\r", 2, "\r", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\n", 2, "\n", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\b", 2, "\b", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\v", 2, "\v", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\f", 2, "\f", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\a", 2, "\a", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\t", 2, "\t", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\r", 2, "\r", 1);
new_header_buffer = replace(new_header_buffer, &len, "\\n", 2, "\n", 1);
if (p->https_strrep) {
int regrep_aim_len = strlen(p->https_strrep_aim);
int regrep_obj_len = strlen(p->https_strrep_obj);
new_header_buffer =
replace(new_header_buffer, &len, p->https_strrep_aim,
regrep_aim_len, p->https_strrep_obj, regrep_obj_len);
}
if (p->https_regrep) {
len = strlen(new_header_buffer) + 1;
new_header_buffer =
regrep(new_header_buffer, &len, p->https_regrep_aim,
p->https_regrep_obj, strlen(p->https_regrep_obj));
}
//stpcpy(p->https_ip, remote_host); // 走真实IP非代理
//p->https_port = *remote_port;
memset(header_buffer, 0, strlen(header_buffer));
memcpy(header_buffer, new_header_buffer, strlen(new_header_buffer));
len_header_buffer = strlen(header_buffer);
free(HTTPS_HEAD);
free(M);
free(U);
free(V);
free(new_header_buffer);
}
free(http_firsts);
free(https_firsts);
free(new_http_del);
free(new_https_del);
free(header_buffer_backup);
return 1;
}

25
cproxy_request.h
View File

@ -1,25 +0,0 @@
#ifndef CPROXY_REQUEST_H
#define CPROXY_REQUEST_H
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <regex.h>
#include "cproxy.h"
void *memmem(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen);
char *replace(char *replace_memory, int *replace_memory_len, const char *src, const int src_len, const char *dest, const int dest_len);
void del_chr(char *s, char ch);
char *strncpy_(char *dest, const char *src, size_t n);
uint8_t request_type(char *req);
int extract_host(char *header);
void forward_header(int destination_sock);
void rewrite_header();
int numbin(int n);
char *splice_head(char *header_buffer, const char *character, char *string);
char *delete_header(char *header_buffer, const char *character, int string);
char *splice_host_port(char *tmp, char *host, char *port);
int replacement_http_head(char *header_buffer, char *remote_host, int *remote_port, int *SIGN, conf *p);
#endif

19
cproxy_help.c → help.c
View File

@ -1,31 +1,30 @@
#include "cproxy_help.h"
#include "help.h"
char help_information(void)
{
static const char name[] = "cproxy";
static const char name[] = "CProxy";
static const char subject[] = "proxy server";
static const struct {
const char *a, *b, *c, *d;
const char *email;
} author = {
"aixiao@aixiao.me", "aixiao", "Author:", "Email :",
"aixiao@aixiao.me",
};
static const char usage[] = "Usage: [-?hd] [-s signal] [-c filename]";
static const char usage[] = "Usage: [-?hpt] [-s signal] [-c filename]";
static const char *s_help[] = {
"",
"Options:",
" -?,-h : help information",
" -d : daemon",
" -p : process number, default 2 process",
" -t : timeout minute, default is no timeout",
" -s signal : send signal to a master process: stop, quit, restart, reload, status",
" -c filename : set configuration file (default: conf/cproxy.ini)",
" -c filename : set configuration file, default CProxy.ini",
"",
0
};
//fprintf(stderr, "%s %s\n", author.c, author.b);
fprintf(stderr, "%s %s\n", name, subject);
fprintf(stderr, "%s %s\n", author.c, author.a);
fprintf(stderr, "Author: %s\n", author.email);
fprintf(stderr, "%s\n", usage);
int l;

5
cproxy_help.h → help.h
View File

@ -1,8 +1,7 @@
#ifndef CPROXY_HELP
#define CPROXY_HELP
#ifndef HELP_H
#define HELP_H
#include <stdio.h>
#include "cproxy.h"
#define BUILD(fmt...) do { fprintf(stderr,"%s %s ",__DATE__,__TIME__); fprintf(stderr, ##fmt); } while(0)
char help_information(void);

191
http.c Normal file
View File

@ -0,0 +1,191 @@
#include "http.h"
#include "proxy.h"
static char *read_data(conn *in, char *data, int *data_len)
{
char *new_data;
int read_len;
do {
new_data = (char *)realloc(data, *data_len + BUFFER_SIZE + 1);
if (new_data == NULL) {
free(data);
return NULL;
}
data = new_data;
read_len = read(in->fd, data + *data_len, BUFFER_SIZE);
// 判断是否关闭连接
if (read_len <= 0) {
if (read_len == 0 || *data_len == 0 || errno != EAGAIN) {
free(data);
return NULL;
}
break;
}
*data_len += read_len;
} while (read_len == BUFFER_SIZE);
*(data + *data_len) = '\0';
return data;
}
void close_connection(conn *conn)
{
epoll_ctl(epollfd, EPOLL_CTL_DEL, conn->fd, NULL);
close(conn->fd);
if ((conn - cts) & 1) {
char *server_data;
server_data = conn->header_buffer;
memset(conn, 0, sizeof(*conn));
conn->header_buffer = server_data;
conn--->fd = -1;
} else {
free(conn->header_buffer);
memset(conn, 0, sizeof(*conn));
conn++->fd = -1;
}
if (conn->fd >= 0)
close_connection(conn);
}
static void serverToClient(conn *server)
{
int write_len;
conn *client;
client = server - 1;
while ((server->header_buffer_len = read(server->fd, server->header_buffer, BUFFER_SIZE)) > 0) {
write_len = write(client->fd, server->header_buffer, server->header_buffer_len);
if (write_len <= 0) {
if (write_len == 0 || errno != EAGAIN)
close_connection(server);
else
server->sent_len = 0;
return;
} else if (write_len < server->header_buffer_len) {
server->sent_len = write_len;
ev.events = EPOLLIN | EPOLLOUT | EPOLLET;
ev.data.ptr = client;
epoll_ctl(epollfd, EPOLL_CTL_MOD, client->fd, &ev);
return;
}
if (server->header_buffer_len < BUFFER_SIZE)
break;
}
if (server->header_buffer_len == 0
|| (server->header_buffer_len == -1 && errno != EAGAIN))
close_connection(server);
else
server->header_buffer_len = server->sent_len = 0;
}
void clienttoserver(conn *in)
{
int write_len;
conn *remote;
remote = in + 1;
write_len = write(remote->fd, in->header_buffer, in->header_buffer_len);
if (write_len == in->header_buffer_len) {
in->header_buffer_len = 0;
in->header_buffer = NULL;
} else {
close_connection(remote);
}
return;
}
// 判断请求类型
static int8_t request_type(char *data)
{
if (strncmp(data, "GET", 3) == 0 ||
strncmp(data, "POST", 4) == 0 ||
strncmp(data, "CONNECT", 7) == 0 ||
strncmp(data, "HEAD", 4) == 0 ||
strncmp(data, "PUT", 3) == 0 ||
strncmp(data, "OPTIONS", 7) == 0 ||
strncmp(data, "MOVE", 4) == 0 ||
strncmp(data, "COPY", 4) == 0 ||
strncmp(data, "TRACE", 5) == 0 ||
strncmp(data, "DELETE", 6) == 0 ||
strncmp(data, "LINK", 4) == 0 ||
strncmp(data, "UNLINK", 6) == 0 ||
strncmp(data, "PATCH", 5) == 0 ||
strncmp(data, "WRAPPED", 7) == 0)
return HTTP_TYPE;
return OTHER_TYPE;
}
void tcp_in(conn *in, conf *configure)
{
if (in->fd < 0)
return;
// 如果in - cts是奇数,那么是服务端触发事件
if ((in - cts) & 1) {
in->timer = (in-1)->timer = 0;
serverToClient(in);
return;
}
in->timer = (in+1)->timer = 0;
in->header_buffer = read_data(in, in->header_buffer, &in->header_buffer_len);
if (in->header_buffer != NULL) {
if (request_type(in->header_buffer) == HTTP_TYPE) {
in->header_buffer = request_head(in, configure);
struct epoll_event epollEvent;
conn *remote;
remote = in + 1;
remote->fd = create_connection(remote_host, remote_port);
epollEvent.events = EPOLLIN|EPOLLOUT|EPOLLET;
epollEvent.data.ptr = remote;
epoll_ctl(epollfd, EPOLL_CTL_ADD, remote->fd, &epollEvent);
}
}
clienttoserver(in);
return;
}
void tcp_out(conn *out)
{
conn *from;
int write_len;
if (out->fd == -1)
return;
else if ((out - cts) & 1)
from = out - 1;
else
from = out + 1;
from->timer = out->timer = 0;
write_len = write(out->fd, from->header_buffer + from->sent_len, from->header_buffer_len - from->sent_len);
if (write_len == from->header_buffer_len - from->sent_len) {
// 服务端的数据可能没全部写入到客户端
if ((from - cts) & 1) {
serverToClient(from);
if (from->fd >= 0 && from->header_buffer == 0) {
ev.events = EPOLLIN | EPOLLET;
ev.data.ptr = out;
epoll_ctl(epollfd, EPOLL_CTL_MOD, out->fd, &ev);
}
} else {
ev.events = EPOLLIN | EPOLLET;
ev.data.ptr = out;
epoll_ctl(epollfd, EPOLL_CTL_MOD, out->fd, &ev);
free(from->header_buffer);
from->header_buffer = NULL;
from->header_buffer_len = 0;
}
} else if (write_len > 0) {
from->sent_len += write_len;
ev.events = EPOLLIN | EPOLLOUT | EPOLLET;
ev.data.ptr = out;
epoll_ctl(epollfd, EPOLL_CTL_MOD, out->fd, &ev);
} else if (errno != EAGAIN) {
close_connection(out);
}
return;
}

28
http.h Normal file
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@ -0,0 +1,28 @@
#ifndef HTTP_H
#define HTTP_H
#include "conf.h"
#include "proxy.h"
#define HTTP_TYPE 0
#define OTHER_TYPE 1
int remote_port;
char remote_host[128];
typedef struct conn_t {
int fd;
char *header_buffer;
int header_buffer_len, sent_len, timer;
} conn;
extern conn cts[MAX_CONNECTION];
extern void tcp_in(conn *in, conf *configure);
extern void tcp_out(conn *out);
extern void clienttoserver(conn *in);
extern void close_connection(conn *conn);
extern char *request_head(conn *in, conf *configure);
#endif

489
kill.c
View File

@ -1,489 +0,0 @@
#include "kill.h"
static pid_t opt_ns_pid = 0;
static int exact = 1, reg = 0, wait_until_dead = 1, process_group =
0, ignore_case = 0;
static long younger_than = 0, older_than = 0;
typedef struct NAMEINFO {
const char *name;
int name_length;
struct stat st;
} NAMEINFO;
static double uptime()
{
char *savelocale;
char buf[2048];
FILE *file;
if (!(file = fopen(PROC_BASE "/uptime", "r"))) {
exit(1);
}
savelocale = setlocale(LC_NUMERIC, "C");
if (fscanf(file, "%2047s", buf) == EOF)
perror("uptime");
fclose(file);
setlocale(LC_NUMERIC, savelocale);
return atof(buf);
}
static double process_age(const unsigned long long jf)
{
double age;
double sc_clk_tck = sysconf(_SC_CLK_TCK);
assert(sc_clk_tck > 0);
age = uptime() - jf / sc_clk_tck;
if (age < 0L)
return 0L;
return age;
}
enum ns_type {
IPCNS = 0,
MNTNS,
NETNS,
PIDNS,
USERNS,
UTSNS
};
static const char *ns_names[] = {
[IPCNS] = "ipc",
[MNTNS] = "mnt",
[NETNS] = "net",
[PIDNS] = "pid",
[USERNS] = "user",
[UTSNS] = "uts",
};
const char *get_ns_name(int id)
{
if (id >= 6)
return NULL;
return ns_names[id];
}
static int get_ns(pid_t pid, int id)
{
struct stat st;
char buff[50];
snprintf(buff, sizeof(buff), "/proc/%i/ns/%s", pid, get_ns_name(id));
if (stat(buff, &st))
return 0;
else
return st.st_ino;
}
static int match_process_uid(pid_t pid, uid_t uid)
{
char buf[128];
uid_t puid;
FILE *f;
int re = -1;
snprintf(buf, sizeof buf, PROC_BASE "/%d/status", pid);
if (!(f = fopen(buf, "r")))
return 0;
while (fgets(buf, sizeof buf, f)) {
if (sscanf(buf, "Uid:\t%d", &puid)) {
re = uid == puid;
break;
}
}
fclose(f);
if (re == -1) {
exit(1);
}
return re;
}
static void free_regexp_list(regex_t * reglist, int names)
{
int i;
for (i = 0; i < names; i++)
regfree(&reglist[i]);
free(reglist);
}
static regex_t *build_regexp_list(int names, char **namelist)
{
int i;
regex_t *reglist;
int flag = REG_EXTENDED | REG_NOSUB;
if (!(reglist = malloc(sizeof(regex_t) * names))) {
perror("malloc");
exit(1);
}
if (ignore_case)
flag |= REG_ICASE;
for (i = 0; i < names; i++) {
if (regcomp(&reglist[i], namelist[i], flag) != 0) {
free_regexp_list(reglist, i);
exit(1);
}
}
return reglist;
}
static NAMEINFO *build_nameinfo(const int names, char **namelist)
{
int i;
NAMEINFO *ni = NULL;
if ((ni = malloc(sizeof(NAMEINFO) * names)) == NULL)
return NULL;
for (i = 0; i < names; i++) {
ni[i].name = namelist[i];
ni[i].st.st_dev = 0;
if (!strchr(namelist[i], '/')) {
ni[i].name_length = strlen(namelist[i]);
} else if (stat(namelist[i], &(ni[i].st)) < 0) {
perror(namelist[i]);
free(ni);
return NULL;
}
}
return ni;
}
static int
load_process_name_and_age(char *comm, double *process_age_sec,
const pid_t pid, int load_age)
{
FILE *file;
char *path;
char buf[1024];
char *startcomm, *endcomm;
unsigned lencomm;
*process_age_sec = 0;
if (asprintf(&path, PROC_BASE "/%d/stat", pid) < 0)
return -1;
if (!(file = fopen(path, "r"))) {
free(path);
return -1;
}
free(path);
if (fgets(buf, 1024, file) == NULL) {
fclose(file);
return -1;
}
fclose(file);
startcomm = strchr(buf, '(') + 1;
endcomm = strrchr(startcomm, ')');
lencomm = endcomm - startcomm;
if (lencomm < 0)
lencomm = 0;
if (lencomm > COMM_LEN - 1)
lencomm = COMM_LEN - 1;
strncpy(comm, startcomm, lencomm);
comm[lencomm] = '\0';
endcomm += 2; // skip ") "
if (load_age) {
unsigned long long proc_stt_jf = 0;
if (sscanf
(endcomm,
"%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %Lu",
&proc_stt_jf) != 1) {
return -1;
}
*process_age_sec = process_age(proc_stt_jf);
}
return lencomm;
}
static int
load_proc_cmdline(const pid_t pid, const char *comm, char **command,
int *got_long)
{
FILE *file;
char *path, *p, *command_buf;
int cmd_size = 128;
int okay;
if (asprintf(&path, PROC_BASE "/%d/cmdline", pid) < 0)
return -1;
if (!(file = fopen(path, "r"))) {
free(path);
return -1;
}
free(path);
if ((command_buf = (char *)malloc(cmd_size)) == NULL)
exit(1);
while (1) {
for (p = command_buf;; p++) {
int c;
if (p == (command_buf + cmd_size)) {
char *new_command_buf;
int cur_size = cmd_size;
cmd_size *= 2;
new_command_buf = (char *)realloc(command_buf, cmd_size);
if (!new_command_buf) {
if (command_buf)
free(command_buf);
exit(1);
}
command_buf = new_command_buf;
p = command_buf + cur_size;
}
c = fgetc(file);
if (c == EOF || c == '\0') {
*p = '\0';
break;
} else {
*p = c;
}
}
if (strlen(command_buf) == 0) {
okay = 0;
break;
}
p = strrchr(command_buf, '/');
p = p ? p + 1 : command_buf;
if (strncmp(p, comm, COMM_LEN - 1) == 0) {
okay = 1;
if (!(*command = strdup(p))) {
free(command_buf);
exit(1);
}
break;
}
}
(void)fclose(file);
free(command_buf);
command_buf = NULL;
if (exact && !okay) {
*got_long = okay;
return -1;
}
*got_long = okay;
return 0;
}
static pid_t *create_pid_table(int *max_pids, int *pids)
{
pid_t self, *pid_table;
int pid;
DIR *dir;
struct dirent *de;
self = getpid();
if (!(dir = opendir(PROC_BASE))) {
perror(PROC_BASE);
exit(1);
}
*max_pids = 256;
pid_table = malloc(*max_pids * sizeof(pid_t));
if (!pid_table) {
perror("malloc");
exit(1);
}
*pids = 0;
while ((de = readdir(dir)) != NULL) {
if (!(pid = (pid_t) atoi(de->d_name)) || pid == self)
continue;
if (*pids == *max_pids) {
if (!(pid_table = realloc(pid_table, 2 * *pids * sizeof(pid_t)))) {
perror("realloc");
exit(1);
}
*max_pids *= 2;
}
pid_table[(*pids)++] = pid;
}
(void)closedir(dir);
return pid_table;
}
#define strcmp2(A,B,I) (I? strcasecmp((A),(B)):strcmp((A),(B)))
#define strncmp2(A,B,L,I) (I? strncasecmp((A),(B),(L)):strncmp((A),(B),(L)))
static int match_process_name(const char *proc_comm,
const int comm_len,
const char *proc_cmdline,
const char *match_name,
const int match_len, const int got_long)
{
if (comm_len == OLD_COMM_LEN - 1 && match_len >= OLD_COMM_LEN - 1) {
if (got_long) {
return (0 == strncmp2(match_name, proc_cmdline, OLD_COMM_LEN - 1,
ignore_case));
} else {
return (0 == strncmp2(match_name, proc_comm, OLD_COMM_LEN - 1,
ignore_case));
}
}
if (comm_len == COMM_LEN - 1 && match_len >= COMM_LEN - 1) {
if (got_long) {
return (0 == strncmp2(match_name, proc_cmdline, COMM_LEN - 1,
ignore_case));
} else {
return (0 == strncmp2(match_name, proc_comm, COMM_LEN - 1,
ignore_case));
}
}
if (got_long) {
return (0 == strcmp2(match_name, proc_cmdline, ignore_case));
}
return (0 == strcmp2(match_name, proc_comm, ignore_case));
}
int kill_all(int signal, int name_count, char **namelist, struct passwd *pwent)
{
struct stat st;
NAMEINFO *name_info = NULL;
char *path, comm[COMM_LEN];
char *command = NULL;
pid_t *pid_table, *pid_killed;
pid_t *pgids = NULL;
int i, j, length, got_long, error;
int pids, max_pids, pids_killed;
unsigned long found;
regex_t *reglist = NULL;
long ns_ino = 0;
if (opt_ns_pid)
ns_ino = get_ns(opt_ns_pid, PIDNS);
if (name_count && reg)
reglist = build_regexp_list(name_count, namelist);
else if ((name_info = build_nameinfo(name_count, namelist)) == NULL)
exit(1);
pid_table = create_pid_table(&max_pids, &pids);
found = 0;
pids_killed = 0;
pid_killed = malloc(max_pids * sizeof(pid_t));
if (!pid_killed) {
perror("malloc");
exit(1);
}
if (process_group) {
pgids = calloc(pids, sizeof(pid_t));
if (!pgids) {
perror("malloc");
exit(1);
}
}
got_long = 0;
for (i = 0; i < pids; i++) {
pid_t id;
int found_name = -1;
double process_age_sec = 0;
if (pwent && match_process_uid(pid_table[i], pwent->pw_uid) == 0)
continue;
if (opt_ns_pid && ns_ino && ns_ino != get_ns(pid_table[i], PIDNS))
continue;
length =
load_process_name_and_age(comm, &process_age_sec, pid_table[i],
(younger_than || older_than));
if (length < 0)
continue;
if (younger_than && (process_age_sec > younger_than))
continue;
if (older_than && (process_age_sec < older_than))
continue;
got_long = 0;
if (command) {
free(command);
command = NULL;
}
if (length == COMM_LEN - 1)
if (load_proc_cmdline(pid_table[i], comm, &command, &got_long) < 0)
continue;
for (j = 0; j < name_count; j++) {
if (reg) {
if (regexec(&reglist[j], got_long ? command : comm, 0, NULL, 0)
!= 0)
continue;
} else {
if (!name_info[j].st.st_dev) {
if (!match_process_name(comm, length, command, namelist[j],
name_info[j].name_length, got_long))
continue;
} else {
int ok = 1;
if (asprintf(&path, PROC_BASE "/%d/exe", pid_table[i]) < 0)
continue;
if (stat(path, &st) < 0)
ok = 0;
else if (name_info[j].st.st_dev != st.st_dev ||
name_info[j].st.st_ino != st.st_ino) {
size_t len = strlen(namelist[j]);
char *linkbuf = malloc(len + 1);
if (!linkbuf ||
readlink(path, linkbuf, len + 1) != (ssize_t) len ||
memcmp(namelist[j], linkbuf, len))
ok = 0;
free(linkbuf);
}
free(path);
if (!ok)
continue;
}
}
found_name = j;
break;
}
if (name_count && found_name == -1)
continue;
if (!process_group)
id = pid_table[i];
else {
int j;
id = getpgid(pid_table[i]);
pgids[i] = id;
for (j = 0; j < i; j++)
if (pgids[j] == id)
break;
if (j < i)
continue;
}
if (kill(process_group ? -id : id, signal) >= 0) {
if (found_name >= 0)
found |= 1UL << found_name;
pid_killed[pids_killed++] = id;
}
}
if (command)
free(command);
if (reglist)
free_regexp_list(reglist, name_count);
free(pgids);
if (name_count)
error =
found ==
((1UL << (name_count - 1)) | ((1UL << (name_count - 1)) - 1)) ? 0 :
1;
else
error = pids_killed ? 0 : 1;
while (pids_killed && wait_until_dead) {
for (i = 0; i < pids_killed;) {
if (kill(process_group ? -pid_killed[i] : pid_killed[i], 0) < 0 &&
errno == ESRCH) {
pid_killed[i] = pid_killed[--pids_killed];
continue;
}
i++;
}
//sleep(1);
}
free(pid_killed);
free(pid_table);
free(name_info);
return error;
}

60
kill.h
View File

@ -1,60 +0,0 @@
#ifndef KILL_H
#define KILL_H
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <dirent.h>
#include <signal.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <getopt.h>
#include <pwd.h>
#include <regex.h>
#include <ctype.h>
#include <assert.h>
#include <locale.h>
#define COMM_LEN 64
#define OLD_COMM_LEN 16
#define _(String) (String)
#define rpmatch(line) \
( (line == NULL)? -1 : \
(*line == 'y' || *line == 'Y')? 1 : \
(*line == 'n' || *line == 'N')? 0 : \
-1 )
#define PROC_BASE "/proc"
#define MAX_NAMES (int)(sizeof(unsigned long)*8)
#define TSECOND "s"
#define TMINUTE "m"
#define THOUR "h"
#define TDAY "d"
#define TWEEK "w"
#define TMONTH "M"
#define TYEAR "y"
#define TMAX_SECOND 31536000
#define TMAX_MINUTE 525600
#define TMAX_HOUR 8760
#define TMAX_DAY 365
#define TMAX_WEEK 48
#define TMAX_MONTH 12
#define TMAX_YEAR 1
#define ER_REGFAIL -1
#define ER_NOMEM -2
#define ER_UNKWN -3
#define ER_OOFRA -4
int kill_all(int signal, int name_count, char **namelist, struct passwd *pwent);
#endif

645
picohttpparser.c Normal file
View File

@ -0,0 +1,645 @@
/*
* Copyright (c) 2009-2014 Kazuho Oku, Tokuhiro Matsuno, Daisuke Murase,
* Shigeo Mitsunari
*
* The software is licensed under either the MIT License (below) or the Perl
* license.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <assert.h>
#include <stddef.h>
#include <string.h>
#ifdef __SSE4_2__
#ifdef _MSC_VER
#include <nmmintrin.h>
#else
#include <x86intrin.h>
#endif
#endif
#include "picohttpparser.h"
#if __GNUC__ >= 3
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#else
#define likely(x) (x)
#define unlikely(x) (x)
#endif
#ifdef _MSC_VER
#define ALIGNED(n) _declspec(align(n))
#else
#define ALIGNED(n) __attribute__((aligned(n)))
#endif
#define IS_PRINTABLE_ASCII(c) ((unsigned char)(c)-040u < 0137u)
#define CHECK_EOF() \
if (buf == buf_end) { \
*ret = -2; \
return NULL; \
}
#define EXPECT_CHAR_NO_CHECK(ch) \
if (*buf++ != ch) { \
*ret = -1; \
return NULL; \
}
#define EXPECT_CHAR(ch) \
CHECK_EOF(); \
EXPECT_CHAR_NO_CHECK(ch);
#define ADVANCE_TOKEN(tok, toklen) \
do { \
const char *tok_start = buf; \
static const char ALIGNED(16) ranges2[16] = "\000\040\177\177"; \
int found2; \
buf = findchar_fast(buf, buf_end, ranges2, 4, &found2); \
if (!found2) { \
CHECK_EOF(); \
} \
while (1) { \
if (*buf == ' ') { \
break; \
} else if (unlikely(!IS_PRINTABLE_ASCII(*buf))) { \
if ((unsigned char)*buf < '\040' || *buf == '\177') { \
*ret = -1; \
return NULL; \
} \
} \
++buf; \
CHECK_EOF(); \
} \
tok = tok_start; \
toklen = buf - tok_start; \
} while (0)
static const char *token_char_map = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\1\0\1\1\1\1\1\0\0\1\1\0\1\1\0\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0"
"\0\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\1\1"
"\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\1\0\1\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
static const char *findchar_fast(const char *buf, const char *buf_end, const char *ranges, size_t ranges_size, int *found)
{
*found = 0;
#if __SSE4_2__
if (likely(buf_end - buf >= 16)) {
__m128i ranges16 = _mm_loadu_si128((const __m128i *)ranges);
size_t left = (buf_end - buf) & ~15;
do {
__m128i b16 = _mm_loadu_si128((const __m128i *)buf);
int r = _mm_cmpestri(ranges16, ranges_size, b16, 16, _SIDD_LEAST_SIGNIFICANT | _SIDD_CMP_RANGES | _SIDD_UBYTE_OPS);
if (unlikely(r != 16)) {
buf += r;
*found = 1;
break;
}
buf += 16;
left -= 16;
} while (likely(left != 0));
}
#else
/* suppress unused parameter warning */
(void)buf_end;
(void)ranges;
(void)ranges_size;
#endif
return buf;
}
static const char *get_token_to_eol(const char *buf, const char *buf_end, const char **token, size_t *token_len, int *ret)
{
const char *token_start = buf;
#ifdef __SSE4_2__
static const char ALIGNED(16) ranges1[16] = "\0\010" /* allow HT */
"\012\037" /* allow SP and up to but not including DEL */
"\177\177"; /* allow chars w. MSB set */
int found;
buf = findchar_fast(buf, buf_end, ranges1, 6, &found);
if (found)
goto FOUND_CTL;
#else
/* find non-printable char within the next 8 bytes, this is the hottest code; manually inlined */
while (likely(buf_end - buf >= 8)) {
#define DOIT() \
do { \
if (unlikely(!IS_PRINTABLE_ASCII(*buf))) \
goto NonPrintable; \
++buf; \
} while (0)
DOIT();
DOIT();
DOIT();
DOIT();
DOIT();
DOIT();
DOIT();
DOIT();
#undef DOIT
continue;
NonPrintable:
if ((likely((unsigned char)*buf < '\040') && likely(*buf != '\011')) || unlikely(*buf == '\177')) {
goto FOUND_CTL;
}
++buf;
}
#endif
for (;; ++buf) {
CHECK_EOF();
if (unlikely(!IS_PRINTABLE_ASCII(*buf))) {
if ((likely((unsigned char)*buf < '\040') && likely(*buf != '\011')) || unlikely(*buf == '\177')) {
goto FOUND_CTL;
}
}
}
FOUND_CTL:
if (likely(*buf == '\015')) {
++buf;
EXPECT_CHAR('\012');
*token_len = buf - 2 - token_start;
} else if (*buf == '\012') {
*token_len = buf - token_start;
++buf;
} else {
*ret = -1;
return NULL;
}
*token = token_start;
return buf;
}
static const char *is_complete(const char *buf, const char *buf_end, size_t last_len, int *ret)
{
int ret_cnt = 0;
buf = last_len < 3 ? buf : buf + last_len - 3;
while (1) {
CHECK_EOF();
if (*buf == '\015') {
++buf;
CHECK_EOF();
EXPECT_CHAR('\012');
++ret_cnt;
} else if (*buf == '\012') {
++buf;
++ret_cnt;
} else {
++buf;
ret_cnt = 0;
}
if (ret_cnt == 2) {
return buf;
}
}
*ret = -2;
return NULL;
}
#define PARSE_INT(valp_, mul_) \
if (*buf < '0' || '9' < *buf) { \
buf++; \
*ret = -1; \
return NULL; \
} \
*(valp_) = (mul_) * (*buf++ - '0');
#define PARSE_INT_3(valp_) \
do { \
int res_ = 0; \
PARSE_INT(&res_, 100) \
*valp_ = res_; \
PARSE_INT(&res_, 10) \
*valp_ += res_; \
PARSE_INT(&res_, 1) \
*valp_ += res_; \
} while (0)
/* returned pointer is always within [buf, buf_end), or null */
static const char *parse_http_version(const char *buf, const char *buf_end, int *minor_version, int *ret)
{
/* we want at least [HTTP/1.<two chars>] to try to parse */
if (buf_end - buf < 9) {
*ret = -2;
return NULL;
}
EXPECT_CHAR_NO_CHECK('H');
EXPECT_CHAR_NO_CHECK('T');
EXPECT_CHAR_NO_CHECK('T');
EXPECT_CHAR_NO_CHECK('P');
EXPECT_CHAR_NO_CHECK('/');
EXPECT_CHAR_NO_CHECK('1');
EXPECT_CHAR_NO_CHECK('.');
PARSE_INT(minor_version, 1);
return buf;
}
static const char *parse_headers(const char *buf, const char *buf_end, struct phr_header *headers, size_t *num_headers,
size_t max_headers, int *ret)
{
for (;; ++*num_headers) {
CHECK_EOF();
if (*buf == '\015') {
++buf;
EXPECT_CHAR('\012');
break;
} else if (*buf == '\012') {
++buf;
break;
}
if (*num_headers == max_headers) {
*ret = -1;
return NULL;
}
if (!(*num_headers != 0 && (*buf == ' ' || *buf == '\t'))) {
/* parsing name, but do not discard SP before colon, see
* http://www.mozilla.org/security/announce/2006/mfsa2006-33.html */
headers[*num_headers].name = buf;
static const char ALIGNED(16) ranges1[] = "\x00 " /* control chars and up to SP */
"\"\"" /* 0x22 */
"()" /* 0x28,0x29 */
",," /* 0x2c */
"//" /* 0x2f */
":@" /* 0x3a-0x40 */
"[]" /* 0x5b-0x5d */
"{\377"; /* 0x7b-0xff */
int found;
buf = findchar_fast(buf, buf_end, ranges1, sizeof(ranges1) - 1, &found);
if (!found) {
CHECK_EOF();
}
while (1) {
if (*buf == ':') {
break;
} else if (!token_char_map[(unsigned char)*buf]) {
*ret = -1;
return NULL;
}
++buf;
CHECK_EOF();
}
if ((headers[*num_headers].name_len = buf - headers[*num_headers].name) == 0) {
*ret = -1;
return NULL;
}
++buf;
for (;; ++buf) {
CHECK_EOF();
if (!(*buf == ' ' || *buf == '\t')) {
break;
}
}
} else {
headers[*num_headers].name = NULL;
headers[*num_headers].name_len = 0;
}
const char *value;
size_t value_len;
if ((buf = get_token_to_eol(buf, buf_end, &value, &value_len, ret)) == NULL) {
return NULL;
}
/* remove trailing SPs and HTABs */
const char *value_end = value + value_len;
for (; value_end != value; --value_end) {
const char c = *(value_end - 1);
if (!(c == ' ' || c == '\t')) {
break;
}
}
headers[*num_headers].value = value;
headers[*num_headers].value_len = value_end - value;
}
return buf;
}
static const char *parse_request(const char *buf, const char *buf_end, const char **method, size_t *method_len, const char **path,
size_t *path_len, int *minor_version, struct phr_header *headers, size_t *num_headers,
size_t max_headers, int *ret)
{
/* skip first empty line (some clients add CRLF after POST content) */
CHECK_EOF();
if (*buf == '\015') {
++buf;
EXPECT_CHAR('\012');
} else if (*buf == '\012') {
++buf;
}
/* parse request line */
ADVANCE_TOKEN(*method, *method_len);
do {
++buf;
} while (*buf == ' ');
ADVANCE_TOKEN(*path, *path_len);
do {
++buf;
} while (*buf == ' ');
if (*method_len == 0 || *path_len == 0) {
*ret = -1;
return NULL;
}
if ((buf = parse_http_version(buf, buf_end, minor_version, ret)) == NULL) {
return NULL;
}
if (*buf == '\015') {
++buf;
EXPECT_CHAR('\012');
} else if (*buf == '\012') {
++buf;
} else {
*ret = -1;
return NULL;
}
return parse_headers(buf, buf_end, headers, num_headers, max_headers, ret);
}
int phr_parse_request(const char *buf_start, size_t len, const char **method, size_t *method_len, const char **path,
size_t *path_len, int *minor_version, struct phr_header *headers, size_t *num_headers, size_t last_len)
{
const char *buf = buf_start, *buf_end = buf_start + len;
size_t max_headers = *num_headers;
int r;
*method = NULL;
*method_len = 0;
*path = NULL;
*path_len = 0;
*minor_version = -1;
*num_headers = 0;
/* if last_len != 0, check if the request is complete (a fast countermeasure
againt slowloris */
if (last_len != 0 && is_complete(buf, buf_end, last_len, &r) == NULL) {
return r;
}
if ((buf = parse_request(buf, buf_end, method, method_len, path, path_len, minor_version, headers, num_headers, max_headers,
&r)) == NULL) {
return r;
}
return (int)(buf - buf_start);
}
static const char *parse_response(const char *buf, const char *buf_end, int *minor_version, int *status, const char **msg,
size_t *msg_len, struct phr_header *headers, size_t *num_headers, size_t max_headers, int *ret)
{
/* parse "HTTP/1.x" */
if ((buf = parse_http_version(buf, buf_end, minor_version, ret)) == NULL) {
return NULL;
}
/* skip space */
if (*buf != ' ') {
*ret = -1;
return NULL;
}
do {
++buf;
} while (*buf == ' ');
/* parse status code, we want at least [:digit:][:digit:][:digit:]<other char> to try to parse */
if (buf_end - buf < 4) {
*ret = -2;
return NULL;
}
PARSE_INT_3(status);
/* get message includig preceding space */
if ((buf = get_token_to_eol(buf, buf_end, msg, msg_len, ret)) == NULL) {
return NULL;
}
if (*msg_len == 0) {
/* ok */
} else if (**msg == ' ') {
/* remove preceding space */
do {
++*msg;
--*msg_len;
} while (**msg == ' ');
} else {
/* garbage found after status code */
*ret = -1;
return NULL;
}
return parse_headers(buf, buf_end, headers, num_headers, max_headers, ret);
}
int phr_parse_response(const char *buf_start, size_t len, int *minor_version, int *status, const char **msg, size_t *msg_len,
struct phr_header *headers, size_t *num_headers, size_t last_len)
{
const char *buf = buf_start, *buf_end = buf + len;
size_t max_headers = *num_headers;
int r;
*minor_version = -1;
*status = 0;
*msg = NULL;
*msg_len = 0;
*num_headers = 0;
/* if last_len != 0, check if the response is complete (a fast countermeasure
against slowloris */
if (last_len != 0 && is_complete(buf, buf_end, last_len, &r) == NULL) {
return r;
}
if ((buf = parse_response(buf, buf_end, minor_version, status, msg, msg_len, headers, num_headers, max_headers, &r)) == NULL) {
return r;
}
return (int)(buf - buf_start);
}
int phr_parse_headers(const char *buf_start, size_t len, struct phr_header *headers, size_t *num_headers, size_t last_len)
{
const char *buf = buf_start, *buf_end = buf + len;
size_t max_headers = *num_headers;
int r;
*num_headers = 0;
/* if last_len != 0, check if the response is complete (a fast countermeasure
against slowloris */
if (last_len != 0 && is_complete(buf, buf_end, last_len, &r) == NULL) {
return r;
}
if ((buf = parse_headers(buf, buf_end, headers, num_headers, max_headers, &r)) == NULL) {
return r;
}
return (int)(buf - buf_start);
}
enum {
CHUNKED_IN_CHUNK_SIZE,
CHUNKED_IN_CHUNK_EXT,
CHUNKED_IN_CHUNK_DATA,
CHUNKED_IN_CHUNK_CRLF,
CHUNKED_IN_TRAILERS_LINE_HEAD,
CHUNKED_IN_TRAILERS_LINE_MIDDLE
};
static int decode_hex(int ch)
{
if ('0' <= ch && ch <= '9') {
return ch - '0';
} else if ('A' <= ch && ch <= 'F') {
return ch - 'A' + 0xa;
} else if ('a' <= ch && ch <= 'f') {
return ch - 'a' + 0xa;
} else {
return -1;
}
}
ssize_t phr_decode_chunked(struct phr_chunked_decoder *decoder, char *buf, size_t *_bufsz)
{
size_t dst = 0, src = 0, bufsz = *_bufsz;
ssize_t ret = -2; /* incomplete */
while (1) {
switch (decoder->_state) {
case CHUNKED_IN_CHUNK_SIZE:
for (;; ++src) {
int v;
if (src == bufsz)
goto Exit;
if ((v = decode_hex(buf[src])) == -1) {
if (decoder->_hex_count == 0) {
ret = -1;
goto Exit;
}
break;
}
if (decoder->_hex_count == sizeof(size_t) * 2) {
ret = -1;
goto Exit;
}
decoder->bytes_left_in_chunk = decoder->bytes_left_in_chunk * 16 + v;
++decoder->_hex_count;
}
decoder->_hex_count = 0;
decoder->_state = CHUNKED_IN_CHUNK_EXT;
/* fallthru */
case CHUNKED_IN_CHUNK_EXT:
/* RFC 7230 A.2 "Line folding in chunk extensions is disallowed" */
for (;; ++src) {
if (src == bufsz)
goto Exit;
if (buf[src] == '\012')
break;
}
++src;
if (decoder->bytes_left_in_chunk == 0) {
if (decoder->consume_trailer) {
decoder->_state = CHUNKED_IN_TRAILERS_LINE_HEAD;
break;
} else {
goto Complete;
}
}
decoder->_state = CHUNKED_IN_CHUNK_DATA;
/* fallthru */
case CHUNKED_IN_CHUNK_DATA: {
size_t avail = bufsz - src;
if (avail < decoder->bytes_left_in_chunk) {
if (dst != src)
memmove(buf + dst, buf + src, avail);
src += avail;
dst += avail;
decoder->bytes_left_in_chunk -= avail;
goto Exit;
}
if (dst != src)
memmove(buf + dst, buf + src, decoder->bytes_left_in_chunk);
src += decoder->bytes_left_in_chunk;
dst += decoder->bytes_left_in_chunk;
decoder->bytes_left_in_chunk = 0;
decoder->_state = CHUNKED_IN_CHUNK_CRLF;
}
/* fallthru */
case CHUNKED_IN_CHUNK_CRLF:
for (;; ++src) {
if (src == bufsz)
goto Exit;
if (buf[src] != '\015')
break;
}
if (buf[src] != '\012') {
ret = -1;
goto Exit;
}
++src;
decoder->_state = CHUNKED_IN_CHUNK_SIZE;
break;
case CHUNKED_IN_TRAILERS_LINE_HEAD:
for (;; ++src) {
if (src == bufsz)
goto Exit;
if (buf[src] != '\015')
break;
}
if (buf[src++] == '\012')
goto Complete;
decoder->_state = CHUNKED_IN_TRAILERS_LINE_MIDDLE;
/* fallthru */
case CHUNKED_IN_TRAILERS_LINE_MIDDLE:
for (;; ++src) {
if (src == bufsz)
goto Exit;
if (buf[src] == '\012')
break;
}
++src;
decoder->_state = CHUNKED_IN_TRAILERS_LINE_HEAD;
break;
default:
assert(!"decoder is corrupt");
}
}
Complete:
ret = bufsz - src;
Exit:
if (dst != src)
memmove(buf + dst, buf + src, bufsz - src);
*_bufsz = dst;
return ret;
}
int phr_decode_chunked_is_in_data(struct phr_chunked_decoder *decoder)
{
return decoder->_state == CHUNKED_IN_CHUNK_DATA;
}
#undef CHECK_EOF
#undef EXPECT_CHAR
#undef ADVANCE_TOKEN

87
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/*
* Copyright (c) 2009-2014 Kazuho Oku, Tokuhiro Matsuno, Daisuke Murase,
* Shigeo Mitsunari
*
* The software is licensed under either the MIT License (below) or the Perl
* license.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef picohttpparser_h
#define picohttpparser_h
#include <sys/types.h>
#ifdef _MSC_VER
#define ssize_t intptr_t
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* contains name and value of a header (name == NULL if is a continuing line
* of a multiline header */
struct phr_header {
const char *name;
size_t name_len;
const char *value;
size_t value_len;
};
/* returns number of bytes consumed if successful, -2 if request is partial,
* -1 if failed */
int phr_parse_request(const char *buf, size_t len, const char **method, size_t *method_len, const char **path, size_t *path_len,
int *minor_version, struct phr_header *headers, size_t *num_headers, size_t last_len);
/* ditto */
int phr_parse_response(const char *_buf, size_t len, int *minor_version, int *status, const char **msg, size_t *msg_len,
struct phr_header *headers, size_t *num_headers, size_t last_len);
/* ditto */
int phr_parse_headers(const char *buf, size_t len, struct phr_header *headers, size_t *num_headers, size_t last_len);
/* should be zero-filled before start */
struct phr_chunked_decoder {
size_t bytes_left_in_chunk; /* number of bytes left in current chunk */
char consume_trailer; /* if trailing headers should be consumed */
char _hex_count;
char _state;
};
/* the function rewrites the buffer given as (buf, bufsz) removing the chunked-
* encoding headers. When the function returns without an error, bufsz is
* updated to the length of the decoded data available. Applications should
* repeatedly call the function while it returns -2 (incomplete) every time
* supplying newly arrived data. If the end of the chunked-encoded data is
* found, the function returns a non-negative number indicating the number of
* octets left undecoded at the tail of the supplied buffer. Returns -1 on
* error.
*/
ssize_t phr_decode_chunked(struct phr_chunked_decoder *decoder, char *buf, size_t *bufsz);
/* returns if the chunked decoder is in middle of chunked data */
int phr_decode_chunked_is_in_data(struct phr_chunked_decoder *decoder);
#ifdef __cplusplus
}
#endif
#endif

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#include "proxy.h"
#include "http.h"
#include "request.h"
#include "timeout.h"
#include "conf.h"
#include "help.h"
#define SERVER_STOP 1
#define SERVER_RELOAD 2
#define SERVER_STATUS 3
struct epoll_event ev, events[MAX_CONNECTION + 1];
int epollfd, server_sock;
conn cts[MAX_CONNECTION];
int create_connection(char *remote_host, int remote_port) {
struct sockaddr_in server_addr;
struct hostent *server;
int sock;
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
perror("socket");
return -1;
}
if ((server = gethostbyname(remote_host)) == NULL) {
perror("gethostbyname");
errno = EFAULT;
return -1;
}
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
memcpy(&server_addr.sin_addr.s_addr, server->h_addr, server->h_length);
server_addr.sin_port = htons(remote_port);
if (connect(sock, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0) {
perror("connect");
return -1;
}
fcntl(sock, F_SETFL, O_NONBLOCK);
return sock;
}
int create_server_socket(int port) {
int server_sock;
int optval = 1;
struct sockaddr_in server_addr;
if ((server_sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
perror("socket");
return -1;
}
if (setsockopt(server_sock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) < 0) {
perror("setsockopt");
return -1;
}
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(port);
server_addr.sin_addr.s_addr = INADDR_ANY;
if (bind(server_sock, (struct sockaddr*)&server_addr, sizeof(server_addr)) != 0) {
perror("bind");
return -1;
}
if (listen(server_sock, 50) < 0) {
perror("listen");
return -1;
}
return server_sock;
}
void accept_client()
{
struct epoll_event epollEvent;
struct sockaddr_in addr;
conn *client;
socklen_t addr_len = sizeof(addr);
// 偶数为客户端,奇数为服务端
for (client = cts; client - cts < MAX_CONNECTION; client += 2)
if (client->fd < 0)
break;
if (client - cts >= MAX_CONNECTION)
return;
client->timer = (client+1)->timer = 0;
client->fd = accept(server_sock, (struct sockaddr *)&addr, &addr_len);
if (client->fd < 0)
return;
fcntl(client->fd, F_SETFL, O_NONBLOCK);
epollEvent.events = EPOLLIN|EPOLLET;
epollEvent.data.ptr = client;
epoll_ctl(epollfd, EPOLL_CTL_ADD, client->fd, &epollEvent);
}
void start_server(conf *configure)
{
int n;
pthread_t thId;
if (timeout_minute)
pthread_create(&thId, NULL, &close_timeout_connectionLoop, NULL);
while (1) {
n = epoll_wait(epollfd, events, MAX_CONNECTION, -1);
while (n-- > 0) {
if (events[n].data.fd == server_sock) {
accept_client();
} else {
if(events[n].events & EPOLLIN) {
tcp_in((conn *) events[n].data.ptr, configure);
}
if (events[n].events & EPOLLOUT) {
tcp_out((conn *) events[n].data.ptr);
}
}
}
}
close(epollfd);
}
int
process_signal(int signal, char *process_name)
{
char bufer[PATH_SIZE];
char comm[PATH_SIZE];
char proc_comm_name[PATH_SIZE];
int num[PATH_SIZE] = { 0 };
int n = 0;
FILE *fp;
DIR *dir;
struct dirent *ptr;
dir = opendir("/proc");
while ((ptr = readdir(dir)) != NULL) {
if (ptr->d_type == DT_DIR && strcasecmp(ptr->d_name, ".")
&& strcasecmp(ptr->d_name, "..")) {
bzero(bufer, 0);
sprintf(comm, "/proc/%s/comm", ptr->d_name);
if (access(comm, F_OK) == 0) {
fp = fopen(comm, "r");
if (fgets(bufer, PATH_SIZE - 1, fp) == NULL) {
fclose(fp);
continue;
}
sscanf(bufer, "%s", proc_comm_name);
if (!strcmp(process_name, proc_comm_name)) {
num[n] = atoi(ptr->d_name);
n += 1;
}
fclose(fp);
}
}
}
n -= 2; // 去除最后一个搜索时的本身进程
for (; n >= 0; n--) {
if (signal == SERVER_STATUS)
printf("\t%d\n", num[n]);
if (signal == SERVER_STOP || signal == SERVER_RELOAD)
kill(num[n], SIGTERM);
}
closedir(dir);
return 0;
}
int get_executable_path(char *processdir, char *processname, int len)
{
char *filename;
if (readlink("/proc/self/exe", processdir, len) <= 0)
return -1;
filename = strrchr(processdir, '/');
if (filename == NULL)
return -1;
++filename;
strcpy(processname, filename);
*filename = '\0';
return (int)(filename - processdir);
}
int _main(int argc, char *argv[])
{
int opt, i, process;
char path[PATH_SIZE] = { 0 };
char executable_filename[PATH_SIZE] = { 0 };
(void)get_executable_path(path, executable_filename, sizeof(path));
char *inifile = "/CProxy.ini";
inifile = strcat(path, inifile);
conf *configure = (struct CONF *)malloc(sizeof(struct CONF));
read_conf(inifile, configure);
timeout_minute = 0;
if (configure->timer > 0)
timeout_minute = configure->timer;
process = 2;
if (configure->process > 0)
process = configure->process;
char optstrs[] = ":l:f:t:p:c:s:h?";
char *p = NULL;
while (-1 != (opt = getopt(argc, argv, optstrs))) {
switch (opt) {
case 'l':
p = strchr(optarg, ':');
if (p) {
strncpy(local_host, optarg, p - optarg);
local_port = atoi(p + 1);
} else {
strncpy(local_host, optarg, strlen(local_host));
}
break;
case 'f':
p = strchr(optarg, ':');
if (p) {
strncpy(remote_host, optarg, p - optarg);
remote_port = atoi(p + 1);
} else {
strncpy(remote_host, optarg, strlen(remote_host));
}
break;
case 't':
timeout_minute = (time_t)atoi(optarg);
break;
case 'p':
process = atoi(optarg);
break;
case 'c':
free_conf(configure);
inifile = optarg;
read_conf(inifile, configure);
break;
case 's':
if (strcasecmp(optarg, "stop") == 0 || strcasecmp(optarg, "quit") == 0) {
free_conf(configure);
exit(process_signal(SERVER_STOP, executable_filename));
}
if (strcasecmp(optarg, "restart") == 0 || strcasecmp(optarg, "reload") == 0)
process_signal(SERVER_RELOAD, executable_filename);
if (strcasecmp(optarg, "status") == 0)
exit(process_signal(SERVER_STATUS, executable_filename));
break;
case 'h':
case '?':
help_information();
exit(0);
break;
default:
;
}
}
server_sock = create_server_socket(configure->server_port);
signal(SIGPIPE, SIG_IGN); //忽略PIPE信号
memset(cts, 0, sizeof(cts));
for (i = MAX_CONNECTION; i--; )
cts[i].fd = -1;
//为服务端的结构体分配内存
for (i = 1; i < MAX_CONNECTION; i += 2)
{
cts[i].header_buffer = (char *)malloc(BUFFER_SIZE);
if (cts[i].header_buffer == NULL)
{
fputs("out of memory.", stderr);
exit(1);
}
}
while (process-- > 0 && fork() == 0)
epollfd = epoll_create(MAX_CONNECTION);
if (epollfd == -1) {
perror("epoll_create");
exit(1);
}
static struct epoll_event event;
event.events = EPOLLIN;
event.data.fd = server_sock;
if (-1 == epoll_ctl(epollfd, EPOLL_CTL_ADD, server_sock, &event)) {
exit(1);
}
if (daemon(1, 1)) {
perror("daemon");
return 1;
}
if (setegid(configure->uid) == -1 || seteuid(configure->uid) == -1) // 设置uid
exit(1);
start_server(configure);
return 0;
}
int main(int argc, char *argv[])
{
return _main(argc, argv);
}

32
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#ifndef PROXY_H
#define PROXY_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/epoll.h>
#include <errno.h>
#include <signal.h>
#include <pthread.h>
#include <pwd.h>
#include <dirent.h>
#include <pthread.h>
#define MAX_CONNECTION 1020
#define BUFFER_SIZE 10240
#define PATH_SIZE 270
int local_port;
char local_host[128];
extern int epollfd;
extern struct epoll_event ev, events[MAX_CONNECTION + 1];
int create_connection(char *remote_host, int remote_port);
#endif

349
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#include "request.h"
// 字符串替换
char *replace(char *replace_memory, int *replace_memory_len, const char *src, const int src_len, const char *dest, const int dest_len)
{
if (!replace_memory || !src || !dest)
return replace_memory;
char *p;
int diff;
if (src_len == dest_len) {
for (p = memmem(replace_memory, *replace_memory_len, src, src_len); p; p = memmem(p, *replace_memory_len - (p - replace_memory), src, src_len)) {
memcpy(p, dest, dest_len);
p += dest_len;
}
} else if (src_len < dest_len) {
int before_len;
char *before_end, *new_replace_memory;
diff = dest_len - src_len;
for (p = memmem(replace_memory, *replace_memory_len, src, src_len); p; p = memmem(p, *replace_memory_len - (p - replace_memory), src, src_len)) {
*replace_memory_len += diff;
before_len = p - replace_memory;
new_replace_memory = (char *)realloc(replace_memory, *replace_memory_len + 1);
if (new_replace_memory == NULL) {
free(replace_memory);
return NULL;
}
replace_memory = new_replace_memory;
before_end = replace_memory + before_len;
p = before_end + dest_len;
memmove(p, p - diff, *replace_memory_len - (p - replace_memory));
memcpy(before_end, dest, dest_len);
}
} else if (src_len > dest_len) {
diff = src_len - dest_len;
for (p = memmem(replace_memory, *replace_memory_len, src, src_len); p; p = memmem(p, *replace_memory_len - (p - replace_memory), src, src_len)) {
*replace_memory_len -= diff;
memcpy(p, dest, dest_len);
p += dest_len;
memmove(p, p + diff, *replace_memory_len - (p - replace_memory));
}
}
replace_memory[*replace_memory_len] = '\0';
return replace_memory;
}
/* 正则表达式字符串替换，str为可用free释放的指针 */
static char *regrep(char *str, int *str_len, const char *src, char *dest,
int dest_len)
{
if (!str || !src || !dest)
return NULL;
regmatch_t pm[10];
regex_t reg;
char child_num[2] = { '\\', '0' }, *p, *real_dest;
int match_len, real_dest_len, i;
p = str;
regcomp(&reg, src, REG_NEWLINE | REG_ICASE | REG_EXTENDED);
while (regexec(&reg, p, 10, pm, 0) == 0) {
real_dest = (char *)malloc(dest_len);
if (real_dest == NULL) {
regfree(&reg);
free(str);
return NULL;
}
memcpy(real_dest, dest, dest_len);
real_dest_len = dest_len;
//不进行不必要的字符串操作
if (pm[1].rm_so >= 0) {
/* 替换目标字符串中的子表达式 */
for (i = 1; i < 10 && pm[i].rm_so > -1; i++) {
child_num[1] = i + 48;
real_dest =
replace(real_dest, &real_dest_len, child_num, 2,
p + pm[i].rm_so, pm[i].rm_eo - pm[i].rm_so);
if (real_dest == NULL) {
regfree(&reg);
free(str);
return NULL;
}
}
}
match_len = pm[0].rm_eo - pm[0].rm_so;
p += pm[0].rm_so;
//目标字符串不大于匹配字符串则不用分配新内存
if (match_len >= real_dest_len) {
memcpy(p, real_dest, real_dest_len);
if (match_len > real_dest_len)
//strcpy(p + real_dest_len, p + match_len);
memmove(p + real_dest_len, p + match_len,
*str_len - (p + match_len - str));
p += real_dest_len;
*str_len -= match_len - real_dest_len;
} else {
int diff;
char *before_end, *new_str;
diff = real_dest_len - match_len;
*str_len += diff;
new_str = (char *)realloc(str, *str_len + 1);
if (new_str == NULL) {
free(str);
free(real_dest);
regfree(&reg);
return NULL;
}
str = new_str;
before_end = str + pm[0].rm_so;
p = before_end + real_dest_len;
memmove(p, p - diff, *str_len - (p - str) + 1);
memcpy(before_end, real_dest, real_dest_len);
}
free(real_dest);
}
regfree(&reg);
return str;
}
// 删除字符串head中第一位到character处并拼接string, character为空返回原字符串.(string字符替换第一个字符到character处)
char *splice_head(char *head, const char *character, char *string)
{
int len_first = strlen(string);
char *p1 = strstr(head, character);
if (p1 == NULL) {
return head;
}
p1 = p1 + 1;
char new_string[len_first + strlen(p1) + 1];
strcpy(new_string, string);
return strcat(new_string, p1);
}
// 删除字符串head中character到string处, character为空返回原字符串.
char *delete_head(char *head, const char *character, int string)
{
int head_len = strlen(head);
char *p1 = strstr(head, character);
if (p1 == NULL) {
return head;
}
char *p2 = strchr(p1, string);
if (p2 == NULL) {
return head;
}
char tmp[head_len];
strncpy_(tmp, head, head_len-strlen(p1)-1);
strcat(tmp, p2);
return strcpy(head, tmp);
}
int extract_host(char *header, char *host, char *port, char *H)
{
bzero(host, 0);
bzero(port, 0);
bzero(H, 0);
char *_p = strstr(header, "CONNECT"); // 在 CONNECT 方法中解析 隧道主机名称及端口号
if (_p) {
char *_p1 = strchr(_p, ' ');
char *_p2 = strchr(_p1 + 1, ':');
char *_p3 = strchr(_p1 + 1, ' ');
if (_p2) {
char s_port[10];
bzero(s_port, 10);
strncpy(host, _p1 + 1, (int)(_p2 - _p1) - 1);
strncpy(s_port, _p2 + 1, (int)(_p3 - _p2) - 1);
strcpy(port, s_port);
} else {
strncpy(host, _p1 + 1, (int)(_p3 - _p1) - 1);
strcpy(port, "80");
}
strcpy(H, host);
strcat(H, ":");
strcat(H, port);
return 0;
}
char *p = strstr(header, "Host:");
if (!p) {
return -1;
}
char *p1 = strchr(p, '\n');
if (!p1) {
return -1;
}
char *p2 = strchr(p + 5, ':'); // 5是指'Host:'的长度
if (p2 && p2 < p1) {
int p_len = (int)(p1 - p2 - 1);
char s_port[p_len];
strncpy(s_port, p2 + 1, p_len);
s_port[p_len] = '\0';
strcpy(port, s_port);
int h_len = (int)(p2 - p - 5 - 1);
strncpy(host, p + 5 + 1, h_len); // Host:
host[h_len] = '\0';
} else {
int h_len = (int)(p1 - p - 5 - 1 - 1);
strncpy(host, p + 5 + 1, h_len);
host[h_len] = '\0';
strcpy(port, "80");
}
strcpy(H, host);
strcat(H, ":");
strcat(H, port);
return 0;
}
char *request_head(conn *in, conf *configure)
{
const char *method, *path;
size_t method_len, path_len, num_headers;
int minor_version;
struct phr_header headers[32];
num_headers = sizeof(headers) / sizeof(headers[0]);
phr_parse_request(in->header_buffer, strlen(in->header_buffer) - 1, &method, &method_len, &path, &path_len, &minor_version, headers, &num_headers, 0);
char M[method_len+2];
strncpy_(M, method, method_len);
int M_len = strlen(M);
//printf("%s\n", M);
char U[path_len+1];
strncpy_(U, path, path_len);
int U_len = strlen(U);
//printf("%s\n", U);
char V[9];
sprintf(V, "HTTP/1.%.d", minor_version);
int V_len = strlen(V);
//printf("%s\n", V);
char host[path_len];
char port[path_len];
char H[path_len*2];
extract_host(in->header_buffer, host, port, H);
if (strncmp(M, "CONNECT", 7) == 0) {
char https_del_copy[configure->https_del_len];
char *result = NULL;
char *incomplete_head;
int incomplete_head_len;
if (configure->https_port > 0)
remote_port = configure->https_port;
if (configure->https_ip != NULL)
strcpy(remote_host, configure->https_ip);
incomplete_head = (char *)malloc(1024 + 10240);
strcpy(incomplete_head, in->header_buffer);
strcpy(https_del_copy, configure->https_del);
result = strtok(https_del_copy, ",");
while (result != NULL) {
delete_head(incomplete_head, result, '\n');
result = strtok(NULL, ",");
}
strcpy(incomplete_head, splice_head(incomplete_head, "\n", configure->https_first));
incomplete_head_len = strlen(incomplete_head);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\r", 2, "\r", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\n", 2, "\n", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\b", 2, "\b", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\v", 2, "\v", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\f", 2, "\f", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\a", 2, "\a", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\t", 2, "\t", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\r", 2, "\r", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\n", 2, "\n", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[M]", 3, M, M_len);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[U]", 3, U, U_len);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[V]", 3, V, V_len);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[host]", 6, host, (int)strlen(host));
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[port]", 6, port, (int)strlen(port));
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[H]", 3, H, (int)strlen(H));
if (configure->https_strrep) {
incomplete_head = replace(incomplete_head, &incomplete_head_len, configure->https_strrep_aim, configure->https_strrep_aim_len, configure->https_strrep_obj, configure->https_strrep_obj_len);
}
if (configure->https_regrep) {
incomplete_head = regrep(incomplete_head, &incomplete_head_len, configure->https_regrep_aim, configure->https_regrep_obj, configure->https_regrep_obj_len);
}
//printf("%s", incomplete_head);
memset(in->header_buffer, 0, strlen(in->header_buffer));
strcpy(in->header_buffer, incomplete_head);
in->header_buffer_len = strlen(in->header_buffer);
free(incomplete_head);
} else {
char *incomplete_head;
char https_del_copy[configure->http_del_len];
char *result = NULL;
int incomplete_head_len;
if (configure->http_port > 0)
remote_port = configure->http_port;
if (configure->https_ip != NULL)
strcpy(remote_host, configure->http_ip);
incomplete_head = (char *)malloc(1024 + 10240);
strcpy(incomplete_head, in->header_buffer);
strcpy(https_del_copy, configure->http_del);
result = strtok(https_del_copy, ",");
while (result != NULL) {
delete_head(incomplete_head, result, '\n');
result = strtok(NULL, ",");
}
strcpy(incomplete_head, splice_head(incomplete_head, "\n", configure->http_first));
incomplete_head_len = strlen(incomplete_head);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\r", 2, "\r", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\n", 2, "\n", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\b", 2, "\b", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\v", 2, "\v", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\f", 2, "\f", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\a", 2, "\a", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\t", 2, "\t", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\r", 2, "\r", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "\\n", 2, "\n", 1);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[M]", 3, M, M_len);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[U]", 3, U, U_len);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[V]", 3, V, V_len);
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[host]", 6, host, (int)strlen(host));
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[port]", 6, port, (int)strlen(port));
incomplete_head = replace(incomplete_head, &incomplete_head_len, "[H]", 3, H, (int)strlen(H));
if (configure->http_strrep) {
incomplete_head = replace(incomplete_head, &incomplete_head_len, configure->http_strrep_aim, configure->http_strrep_aim_len, configure->http_strrep_obj, configure->http_strrep_obj_len);
}
if (configure->http_regrep) {
incomplete_head = regrep(incomplete_head, &incomplete_head_len, configure->http_regrep_aim, configure->http_regrep_obj, configure->http_regrep_obj_len);
}
//printf("%s", incomplete_head);
memset(in->header_buffer, 0, strlen(in->header_buffer));
strcpy(in->header_buffer, incomplete_head);
in->header_buffer_len = strlen(in->header_buffer);
free(incomplete_head);
}
return in->header_buffer;
}

17
request.h Normal file
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#ifndef REQUEST_H
#define REQUEST_H
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <regex.h>
#include "http.h"
#include "conf.h"
#include "picohttpparser.h"
void *memmem(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen);
char *replace(char *replace_memory, int *replace_memory_len, const char *src, const int src_len, const char *dest, const int dest_len);
char *request_head(conn *in, conf *configure);
#endif

22
timeout.c Normal file
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#include "proxy.h"
#include "http.h"
int timeout_minute;
void *close_timeout_connectionLoop(void *nullPtr)
{
int i;
while (1)
{
sleep(60);
for (i = 0; i < MAX_CONNECTION; i += 2)
if (cts[i].fd > -1)
{
if (cts[i].timer >= timeout_minute)
close_connection(cts + i);
else
cts[i].timer++;
}
}
}

8
timeout.h Normal file
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#ifndef TIME_H
#define TIME_H
extern int timeout_minute;
void *close_timeout_connectionLoop(void *nullPtr);
#endif