401 lines
14 KiB
C
401 lines
14 KiB
C
#include "conf.h"
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char *strncpy_(char *dest, const char *src, size_t n)
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{
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int size = sizeof(char) * (n + 1);
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char *tmp = (char *)malloc(size); // 开辟大小为n+1的临时内存tmp
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if (tmp) {
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memset(tmp, '\0', size); // 将内存初始化为0
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memcpy(tmp, src, size - 1); // 将src的前n个字节拷贝到tmp
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memcpy(dest, tmp, size); // 将临时空间tmp的内容拷贝到dest
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free(tmp); // 释放内存
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return dest;
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} else {
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return NULL;
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}
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}
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/* 在content中，设置变量(var)的首地址，值(val)的位置首地址和末地址，返回下一行指针 */
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static char *set_var_val_lineEnd(char *content, char **var, char **val_begin, char **val_end)
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{
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char *p, *pn, *lineEnd;
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;
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int val_len;
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while (1) {
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if (content == NULL)
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return NULL;
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for (; *content == ' ' || *content == '\t' || *content == '\r' || *content == '\n'; content++) ;
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if (*content == '\0')
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return NULL;
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*var = content;
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pn = strchr(content, '\n');
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p = strchr(content, '=');
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if (p == NULL) {
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if (pn) {
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content = pn + 1;
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continue;
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} else
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return NULL;
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}
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content = p;
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//将变量以\0结束
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for (p--; *p == ' ' || *p == '\t'; p--) ;
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*(p + 1) = '\0';
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//值的首地址
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for (content++; *content == ' ' || *content == '\t'; content++) ;
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if (*content == '\0')
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return NULL;
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//双引号引起来的值支持换行
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if (*content == '"') {
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*val_begin = content + 1;
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*val_end = strstr(*val_begin, "\";");
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if (*val_end != NULL)
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break;
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} else
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*val_begin = content;
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*val_end = strchr(content, ';');
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if (pn && *val_end > pn) {
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content = pn + 1;
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continue;
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}
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break;
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}
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if (*val_end) {
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**val_end = '\0';
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val_len = *val_end - *val_begin;
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lineEnd = *val_end;
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} else {
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val_len = strlen(*val_begin);
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*val_end = lineEnd = *val_begin + val_len;
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}
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*val_end = *val_begin + val_len;
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//printf("var[%s]\nbegin[%s]\n\n", *var, *val_begin);
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return lineEnd;
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}
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/* 在buff中读取模块(global http https httpdns httpudp)内容 */
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static char *read_module(char *buff, const char *module_name)
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{
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int len;
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char *p, *p0;
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len = strlen(module_name);
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p = buff;
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while (1) {
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while (*p == ' ' || *p == '\t' || *p == '\r' || *p == '\n')
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p++;
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if (strncasecmp(p, module_name, len) == 0) {
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p += len;
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while (*p == ' ' || *p == '\t' || *p == '\r' || *p == '\n')
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p++;
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if (*p == '{')
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break;
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}
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if ((p = strchr(p, '\n')) == NULL)
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return NULL;
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}
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if ((p0 = strchr(++p, '}')) == NULL)
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return NULL;
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return strndup(p, p0 - p);
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}
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static void parse_global_module(char *content, conf * p)
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{
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char *var, *val_begin, *val_end, *lineEnd;
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while ((lineEnd = set_var_val_lineEnd(content, &var, &val_begin, &val_end)) != NULL) {
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if (strcasecmp(var, "uid") == 0) {
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p->uid = atoi(val_begin);
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} else if (strcasecmp(var, "process") == 0) {
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p->process = atoi(val_begin);
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} else if (strcasecmp(var, "timeout") == 0) {
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p->timeout = atoi(val_begin);
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} else if (strcasecmp(var, "encode") == 0) {
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p->sslencoding = atoi(val_begin);
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} else if (strcasecmp(var, "tcp_listen") == 0) {
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p->tcp_listen = atoi(val_begin);
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} else if (strcasecmp(var, "tcp6_listen") == 0) {
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p->tcp6_listen = atoi(val_begin);
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} else if (strcasecmp(var, "dns_listen") == 0) {
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p->dns_listen = atoi(val_begin);
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}
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content = strchr(lineEnd + 1, '\n');
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}
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}
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static void parse_http_module(char *content, conf * p)
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{
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char *var, *val_begin, *val_end, *lineEnd;
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int val_begin_len;
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while ((lineEnd = set_var_val_lineEnd(content, &var, &val_begin, &val_end)) != NULL) {
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if (strcasecmp(var, "http_ip") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->http_ip = (char *)malloc(val_begin_len);
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memset(p->http_ip, 0, val_begin_len);
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memcpy(p->http_ip, val_begin, val_begin_len);
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} else if (strcasecmp(var, "http_port") == 0) {
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p->http_port = atoi(val_begin);
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} else if (strcasecmp(var, "http_del") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->http_del = (char *)malloc(val_begin_len);
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memset(p->http_del, 0, val_begin_len);
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memcpy(p->http_del, val_begin, val_begin_len);
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p->http_del_len = val_begin_len;
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} else if (strcasecmp(var, "http_first") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->http_first = (char *)malloc(val_begin_len);
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memset(p->http_first, 0, val_begin_len);
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memcpy(p->http_first, val_begin, val_begin_len);
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p->http_first_len = val_begin_len;
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} else if (strcasecmp(var, "strrep") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->http_strrep = (char *)malloc(val_begin_len);
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if (p->http_strrep == NULL)
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free(p->http_strrep);
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memset(p->http_strrep, 0, val_begin_len);
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memcpy(p->http_strrep, val_begin, val_begin_len);
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char *p1 = strstr(val_begin, "->");
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p->http_strrep_aim = (char *)malloc(val_begin_len - strlen(p1 + 2) - 2 + 1);
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if (p->http_strrep_aim == NULL) {
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free(p->http_strrep_aim);
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}
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memset(p->http_strrep_aim, 0, val_begin_len - strlen(p1 + 2) - 2 + 1);
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strncpy_(p->http_strrep_aim, val_begin, val_begin_len - strlen(p1 + 2) - 3); // 实际 val_begin_len 多1
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p->http_strrep_obj = (char *)malloc(strlen(p1 + 2) + 1);
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if (p->http_strrep_obj == NULL) {
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free(p->http_strrep_obj);
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}
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memset(p->http_strrep_obj, 0, strlen(p1 + 2) + 1);
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strncpy_(p->http_strrep_obj, p1 + 2, strlen(p1 + 2));
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p->http_strrep_aim_len = strlen(p->http_strrep_aim);
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p->http_strrep_obj_len = strlen(p->http_strrep_obj);
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} else if (strcasecmp(var, "regrep") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->http_regrep = (char *)malloc(val_begin_len);
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if (p->http_regrep == NULL)
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free(p->http_regrep);
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memset(p->http_regrep, 0, val_begin_len);
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memcpy(p->http_regrep, val_begin, val_begin_len);
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char *p1 = strstr(val_begin, "->");
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p->http_regrep_aim = (char *)malloc(val_begin_len - strlen(p1 + 2) - 2 + 1);
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if (p->http_regrep_aim == NULL) {
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free(p->http_regrep_aim);
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}
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memset(p->http_regrep_aim, 0, val_begin_len - strlen(p1 + 2) - 2 + 1);
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strncpy_(p->http_regrep_aim, val_begin, val_begin_len - strlen(p1 + 2) - 3);
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p->http_regrep_obj = (char *)malloc(strlen(p1 + 2) + 1);
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if (p->http_regrep_obj == NULL) {
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free(p->http_regrep_obj);
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}
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memset(p->http_regrep_obj, 0, strlen(p1 + 2) + 1);
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strncpy_(p->http_regrep_obj, p1 + 2, strlen(p1 + 2));
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p->http_regrep_aim_len = strlen(p->http_regrep_aim);
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p->http_regrep_obj_len = strlen(p->http_regrep_obj);
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}
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content = strchr(lineEnd + 1, '\n');
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}
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}
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static void parse_https_module(char *content, conf * p)
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{
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char *var, *val_begin, *val_end, *lineEnd;
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int val_begin_len;
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while ((lineEnd = set_var_val_lineEnd(content, &var, &val_begin, &val_end)) != NULL) {
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if (strcasecmp(var, "https_ip") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->https_ip = (char *)malloc(val_begin_len);
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memset(p->https_ip, 0, val_begin_len);
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memcpy(p->https_ip, val_begin, val_begin_len);
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} else if (strcasecmp(var, "https_port") == 0) {
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p->https_port = atoi(val_begin);
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} else if (strcasecmp(var, "https_del") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->https_del = (char *)malloc(val_begin_len);
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memset(p->https_del, 0, val_begin_len);
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memcpy(p->https_del, val_begin, val_begin_len);
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p->https_del_len = val_begin_len;
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} else if (strcasecmp(var, "https_first") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->https_first = (char *)malloc(val_begin_len);
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memset(p->https_first, 0, val_begin_len);
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memcpy(p->https_first, val_begin, val_begin_len);
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p->https_first_len = val_begin_len;
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} else if (strcasecmp(var, "strrep") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->https_strrep = (char *)malloc(val_begin_len);
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if (p->https_strrep == NULL)
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free(p->https_strrep);
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memset(p->https_strrep, 0, val_begin_len);
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memcpy(p->https_strrep, val_begin, val_begin_len);
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char *p1 = strstr(val_begin, "->");
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p->https_strrep_aim = (char *)malloc(val_begin_len - strlen(p1 + 2) - 2 + 1);
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if (p->https_strrep_aim == NULL) {
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free(p->https_strrep_aim);
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}
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memset(p->https_strrep_aim, 0, val_begin_len - strlen(p1 + 2) - 2 + 1);
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strncpy_(p->https_strrep_aim, val_begin, val_begin_len - strlen(p1 + 2) - 3);
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p->https_strrep_obj = (char *)malloc(strlen(p1 + 2) + 1);
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if (p->https_strrep_obj == NULL) {
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free(p->https_strrep_obj);
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}
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memset(p->https_strrep_obj, 0, strlen(p1 + 2) + 1);
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strncpy_(p->https_strrep_obj, p1 + 2, strlen(p1 + 2));
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p->https_strrep_aim_len = strlen(p->https_strrep_aim);
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p->https_strrep_obj_len = strlen(p->https_strrep_obj);
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} else if (strcasecmp(var, "regrep") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->https_regrep = (char *)malloc(val_begin_len);
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if (p->https_regrep == NULL)
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free(p->https_regrep);
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memset(p->https_regrep, 0, val_begin_len);
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memcpy(p->https_regrep, val_begin, val_begin_len);
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char *p1 = strstr(val_begin, "->");
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p->https_regrep_aim = (char *)malloc(val_begin_len - strlen(p1 + 2) - 2 + 1);
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if (p->https_regrep_aim == NULL)
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free(p->https_regrep_aim);
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memset(p->https_regrep_aim, 0, val_begin_len - strlen(p1 + 2) - 2 + 1);
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strncpy_(p->https_regrep_aim, val_begin, val_begin_len - strlen(p1 + 2) - 3);
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p->https_regrep_obj = (char *)malloc(strlen(p1 + 2) + 1);
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if (p->https_regrep_obj == NULL)
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free(p->https_regrep_obj);
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memset(p->https_regrep_obj, 0, strlen(p1 + 2) + 1);
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strncpy_(p->https_regrep_obj, p1 + 2, strlen(p1 + 2));
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p->https_regrep_aim_len = strlen(p->https_regrep_aim);
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p->https_regrep_obj_len = strlen(p->https_regrep_obj);
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}
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content = strchr(lineEnd + 1, '\n');
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}
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}
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static void parse_httpdns_module(char *content, conf * p)
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{
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char *var, *val_begin, *val_end, *lineEnd;
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int val_begin_len;
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while ((lineEnd = set_var_val_lineEnd(content, &var, &val_begin, &val_end)) != NULL) {
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if (strcasecmp(var, "addr") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->addr = (char *)malloc(val_begin_len);
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memset(p->addr, 0, val_begin_len);
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memcpy(p->addr, val_begin, val_begin_len);
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} else if (strcasecmp(var, "http_req") == 0) {
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val_begin_len = strlen(val_begin) + 1;
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p->http_req = (char *)malloc(val_begin_len);
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memset(p->http_req, 0, val_begin_len);
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memcpy(p->http_req, val_begin, val_begin_len);
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p->http_req_len = val_begin_len;
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} else if (strcasecmp(var, "encode") == 0) {
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p->encode = atoi(val_begin);
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}
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content = strchr(lineEnd + 1, '\n');
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}
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}
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void free_conf(conf * p)
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{
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if (p->http_ip)
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free(p->http_ip);
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if (p->http_del)
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free(p->http_del);
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if (p->http_first)
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free(p->http_first);
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if (p->http_strrep)
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free(p->http_strrep);
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if (p->http_strrep_aim)
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free(p->http_strrep_aim);
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if (p->http_strrep_obj)
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free(p->http_strrep_obj);
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if (p->http_regrep)
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free(p->http_regrep);
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if (p->http_regrep_aim)
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free(p->http_regrep_aim);
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if (p->http_regrep_obj)
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free(p->http_regrep_obj);
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if (p->https_ip)
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free(p->https_ip);
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if (p->https_del)
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free(p->https_del);
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if (p->https_first)
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free(p->https_first);
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if (p->https_strrep)
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free(p->https_strrep);
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if (p->https_strrep_aim)
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free(p->https_strrep_aim);
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if (p->https_strrep_obj)
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free(p->https_strrep_obj);
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if (p->https_regrep)
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free(p->https_regrep);
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if (p->https_regrep_aim)
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free(p->https_regrep_aim);
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if (p->https_regrep_obj)
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free(p->https_regrep_obj);
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if (p->addr)
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free(p->addr);
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if (p->http_req)
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free(p->http_req);
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return;
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}
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void read_conf(char *filename, conf * configure)
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{
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char *buff, *global_content, *http_content, *https_content, *httpdns_content;
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FILE *file;
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long file_size;
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file = fopen(filename, "r");
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if (file == NULL) {
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perror("cannot open config file.");
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exit(-1);
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}
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fseek(file, 0, SEEK_END);
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file_size = ftell(file);
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buff = (char *)alloca(file_size + 1);
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if (buff == NULL)
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perror("out of memory.");
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rewind(file);
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if (fread(buff, file_size, 1, file) < 1) {
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perror("fread");
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}
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fclose(file);
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buff[file_size] = '\0';
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if ((global_content = read_module(buff, "global")) == NULL)
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perror("read global module error");
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parse_global_module(global_content, configure);
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free(global_content);
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if ((http_content = read_module(buff, "http")) == NULL)
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perror("read http module error");
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parse_http_module(http_content, configure);
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free(http_content);
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if ((https_content = read_module(buff, "https")) == NULL)
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perror("read https module error");
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parse_https_module(https_content, configure);
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free(https_content);
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if ((httpdns_content = read_module(buff, "httpdns")) == NULL)
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perror("read httpdns module error");
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parse_httpdns_module(httpdns_content, configure);
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free(httpdns_content);
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}
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