- /**
- *@brief 对于url中的一些特殊字符会被转义以利传输,
- * 并且, 归档服务器上, php写入cookie中的值可能存在特殊字符, 需要转换
- *
- *参考: http://www.blooberry.com/indexdot/html/topics/urlencoding.htm
- * http://www.december.com/html/spec/esccodes.html
- *
- *@param[in,out] data 需要处理的数据, 处理完后, 这个数据会被修改为期待的数据
- *@param[in] data_len data中的实际数据长度
- *
- */
- int escape_url_character(char *data, int data_len)
- {
- /* 下面只列出来了一些加密用到的字符, 而没有列出所有的字符, 主要是空格, /, +, = */
- char *transfer_table[][2] = { {"+", "2B"}, {"[","5B"},{"]","5D"},{"`","60"},{";","3B"},{"/","2F"},{"?","3F"},{":","3A"},{"@","40"},{"=","3D"},{"&","26"},{"$","24"},{" ","20"},{"<","3C"},{">","3E"},{"#","23"},{"%","25"},{"{","7B"},{"}","7D"},{"|","7C"},{"\\","5C"},{"^","5E"},{"~","7E"}, {NULL, NULL} };
- int i = 0, j;
- char *buf = calloc(data_len + 1, sizeof(char));
- while( i < data_len ){
- if( '%' != data[i]){
- strncat(buf, data+i, 1);
- i++;
- continue;
- }
- /* 查表 */
- j = 0;
- while( NULL != transfer_table[j][1] ){
- if( 0 == strncasecmp(data+i+1, transfer_table[j][1], 2 )){
- strncat(buf, transfer_table[j][0], 1);
- i += 3;
- break;
- }
- j++;
- }
- /* 对于表中不存在的字符不作处理, 但输出一条日志 */
- if( NULL == transfer_table[j][1] ){
- strncat(buf, data+i, 1);
- printf("escape_url_character: unhandled sequence: %s\n", data+i);
- i++;
- }
- }
- memset(data, 0, data_len);
- strcpy(data, buf);
- free(buf);
- return 0;
- }
来源: http://www.phpxs.com/code/1004075/