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#include <string.h>
#include <assert.h>
#include "http_decoder.h"
#include "http_decoder_inc.h"
char *safe_dup(const char *str, size_t len)
{
if (str == NULL || len == 0) {
return NULL;
}
char *dup = CALLOC(char, len + 1);
memcpy(dup, str, len);
return dup;
}
int strncasecmp_safe(const char *fix_s1, const char *dyn_s2, size_t fix_n1, size_t dyn_n2)
{
if (fix_s1 == NULL || dyn_s2 == NULL) {
return -1;
}
if(fix_n1 != dyn_n2){
return -1;
}
return strncasecmp(fix_s1, dyn_s2, fix_n1);
}
const char *http_message_type_to_string(enum http_message_type type)
{
const char *sname = "unknown_msg_type";
switch (type)
{
case HTTP_MESSAGE_REQ_LINE:
sname = "HTTP_MESSAGE_REQ_LINE";
break;
case HTTP_MESSAGE_REQ_HEADER:
sname = "HTTP_MESSAGE_REQ_HEADER";
break;
case HTTP_MESSAGE_REQ_HEADER_END:
sname = "HTTP_MESSAGE_REQ_HEADER_END";
break;
case HTTP_MESSAGE_REQ_BODY_START:
sname = "HTTP_MESSAGE_REQ_BODY_START";
break;
case HTTP_MESSAGE_REQ_BODY:
sname = "HTTP_MESSAGE_REQ_BODY";
break;
case HTTP_MESSAGE_REQ_BODY_END:
sname = "HTTP_MESSAGE_REQ_BODY_END";
break;
case HTTP_MESSAGE_RES_LINE:
sname = "HTTP_MESSAGE_RES_LINE";
break;
case HTTP_MESSAGE_RES_HEADER:
sname = "HTTP_MESSAGE_RES_HEADER";
break;
case HTTP_MESSAGE_RES_HEADER_END:
sname = "HTTP_MESSAGE_RES_HEADER_END";
break;
case HTTP_MESSAGE_RES_BODY_START:
sname = "HTTP_MESSAGE_RES_BODY_START";
break;
case HTTP_MESSAGE_RES_BODY:
sname = "HTTP_MESSAGE_RES_BODY";
break;
case HTTP_MESSAGE_RES_BODY_END:
sname = "HTTP_MESSAGE_RES_BODY_END";
break;
case HTTP_TRANSACTION_START:
sname = "HTTP_TRANSACTION_START";
break;
case HTTP_TRANSACTION_END:
sname = "HTTP_TRANSACTION_END";
break;
default:
break;
}
return sname;
}
int http_message_type_is_req(struct session *sess, enum http_message_type msg_type)
{
int is_req_msg = 0;
switch(msg_type){
case HTTP_MESSAGE_REQ_LINE:
case HTTP_MESSAGE_REQ_HEADER:
case HTTP_MESSAGE_REQ_HEADER_END:
case HTTP_MESSAGE_REQ_BODY_START:
case HTTP_MESSAGE_REQ_BODY:
case HTTP_MESSAGE_REQ_BODY_END:
is_req_msg = 1;
break;
case HTTP_MESSAGE_RES_LINE:
case HTTP_MESSAGE_RES_HEADER:
case HTTP_MESSAGE_RES_HEADER_END:
case HTTP_MESSAGE_RES_BODY_START:
case HTTP_MESSAGE_RES_BODY:
case HTTP_MESSAGE_RES_BODY_END:
is_req_msg = 0;
break;
case HTTP_TRANSACTION_START:
case HTTP_TRANSACTION_END:
{
int cur_dir = packet_get_direction(session_get0_current_packet(sess));
if(PACKET_DIRECTION_C2S == cur_dir){
is_req_msg = 1;
}else{
is_req_msg = 0;
}
}
break;
default:
assert(0);
fprintf(stderr, "unknow message type:%d\n", (int)msg_type);
break;
}
return is_req_msg;
}
int http_event_is_req(enum http_event event)
{
switch(event){
case HTTP_EVENT_REQ_INIT:
case HTTP_EVENT_REQ_LINE:
case HTTP_EVENT_REQ_HDR:
case HTTP_EVENT_REQ_HDR_END:
case HTTP_EVENT_REQ_BODY_BEGIN:
case HTTP_EVENT_REQ_BODY_DATA:
case HTTP_EVENT_REQ_BODY_END:
case HTTP_EVENT_REQ_END:
return 1;
break;
case HTTP_EVENT_RES_INIT:
case HTTP_EVENT_RES_LINE:
case HTTP_EVENT_RES_HDR:
case HTTP_EVENT_RES_HDR_END:
case HTTP_EVENT_RES_BODY_BEGIN:
case HTTP_EVENT_RES_BODY_DATA:
case HTTP_EVENT_RES_BODY_END:
case HTTP_EVENT_RES_END:
return 0;
break;
default:
assert(0);
fprintf(stderr, "unknow event type:%d\n", (int)event);
break;
}
return -1;
}
int stellar_session_mq_get_topic_id_reliable(struct stellar *st, const char *topic_name, session_msg_free_cb_func *msg_free_cb, void *msg_free_arg)
{
int topic_id = stellar_session_mq_get_topic_id(st, topic_name);
if(topic_id < 0){
topic_id = stellar_session_mq_create_topic(st, topic_name, msg_free_cb, msg_free_arg);
}
return topic_id;
}
static const unsigned char __g_httpd_hextable[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 - 0x3f */
0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x40 - 0x4f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 - 0x5f */
0, 10, 11, 12, 13, 14, 15 /* 0x60 - 0x66 */
};
/* the input is a single hex digit */
#define onehex2dec(x) __g_httpd_hextable[x - '0']
#include <ctype.h>
// https://github.com/curl/curl/blob/2e930c333658725657b94a923d175c6622e0f41d/lib/urlapi.c
void httpd_url_decode(const char *string, size_t length, char *ostring, size_t *olen)
{
size_t alloc = length;
char *ns = ostring;
while (alloc)
{
unsigned char in = (unsigned char)*string;
if (('%' == in) && (alloc > 2) &&
isxdigit(string[1]) && isxdigit(string[2]))
{
/* this is two hexadecimal digits following a '%' */
in = (unsigned char)(onehex2dec(string[1]) << 4) | onehex2dec(string[2]);
string += 3;
alloc -= 3;
}
else
{
string++;
alloc--;
}
*ns++ = (char)in;
}
*ns = 0; /* terminate it */
if (olen)
/* store output size */
*olen = ns - ostring;
return;
}
int httpd_url_is_encoded(const char *url, size_t len)
{
for(size_t i = 0; i < len; i++){
if(url[i] == '%'){
return 1;
}
}
return 0;
}
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