用户注册



邮箱：

密码：

用户登录


邮箱：

密码：
记住登录一个月忘记密码？

发表随想


还能输入：200字
云代码 - c++代码库

CGI

2013-03-01 作者： 云代码会员举报

[c++]代码库

view sourceprint?
int output_file(string fn, INT64 offset, INT64 length, int partial) {
    if(offset < 0)
        offset = 0;
    if(length < 0)
        length = 0;
 
    string_trim(fn);
    if(fn.size() == 0)
        fn = "/";
 
        //CFile in_file;
        //if(in_file.Open(fn.c_str(), CFile::modeRead | CFile::shareDenyWrite) == FALSE) {
    //FILE * fp;
    CFile in_file;
    if(fn[fn.size()-1] == '/') {
        string idx;
        idx = fn + "index.html";
        //fp = fopen(idx.c_str(), "rb");
        //if(fp == NULL) {
        if(in_file.Open(idx.c_str(), CFile::modeRead | CFile::shareDenyWrite) == FALSE) {
            idx = fn + "index.htm";
            //fp = fopen(idx.c_str(), "rb");
            //if(fp == NULL) {
            if(in_file.Open(idx.c_str(), CFile::modeRead | CFile::shareDenyWrite) == FALSE) {
                printf("Param-Status: %d\r\n", 404);
                printf("Param-Desc: %s\r\n", NOT_FOUND);
                printf("Content-type: text/html\r\n");
                printf("Content-Length: %d\r\n", strlen(NOT_FOUND));
                printf("\r\n");
                printf("%s", NOT_FOUND);
                 
                return -1;
            }
        }
    }
    else {
        //fp = fopen(fn.c_str(), "rb");
        //if(fp == NULL) {
        if(in_file.Open(fn.c_str(), CFile::modeRead | CFile::shareDenyWrite) == FALSE) {
            printf("Param-Status: %d\r\n", 404);
            printf("Param-Desc: %s\r\n", NOT_FOUND);
            printf("Content-type: text/html\r\n");
            printf("Content-Length: %d\r\n", strlen(NOT_FOUND));
            printf("\r\n");
            printf("%s", NOT_FOUND);
             
            return -1;
        }
    }
 
    string ext;
    if(fn.rfind(".") != string::npos) {
        ext = fn.substr(fn.rfind(".")+1);
    }
    string_lower(ext);
     
    //printf("output_file()\n"); //debug
 
    //fseek(fp, 0, SEEK_END);
    //int flen = ftell(fp);
 
    INT64 flen = in_file.GetLength();
 
    if(offset >= flen) {
        printf("Param-Status: %d\r\n", 416);
        printf("Param-Desc: %s\r\n", RANGE_INVALID);
        printf("Content-type: text/html\r\n");
        printf("Content-Length: %d\r\n", strlen(RANGE_INVALID));
        printf("\r\n");
        printf("%s", RANGE_INVALID);
         
        return -1;
    }
 
    if(length > flen-offset || length == 0)
        length = flen-offset;
 
    int status = 200;
    if(length < flen || partial) {
        status = 206;
    }
 
    printf("Accept-Ranges: bytes\r\n");
    printf("Content-Length: %I64d\r\n", length);
    printf("Content-type: %s\r\n", get_mime(ext).c_str());
    printf("Param-Status: %d\r\n", status);
    if(status == 206) {
        printf("Param-Desc: %s\r\n", PARTIAL_CONTENT);
        printf("Param-Range: bytes %I64d-%I64d/%I64d\r\n", offset, offset+length-1, flen);
    }
    printf("\r\n");
 
    //fseek(fp, offset, SEEK_SET);
    in_file.Seek(offset, CFile::begin);
     
    char buf[100*1024];
    INT64 read_len = 0;
    //while(!feof(fp) && read_len < length) {
    while(in_file.GetPosition() < in_file.GetLength() && read_len < length) {
        /*
        int buf_len = sizeof(buf);
        if(buf_len > length-read_len) {
            buf_len = length-read_len;
        }
        */
        //int ret = fread(buf, buf_len, 1, fp);
        int len = in_file.Read(buf, sizeof(buf));
        if(len > 0) {
            fwrite(buf, len, 1, stdout);
        }
        else {
            break;
        }
        read_len += len;
    }
    //fclose(fp);
    in_file.Close();
 
    return 0;
}
#endif
 
 
 
unsigned int xrand()
{
        unsigned int num = (rand() )* (rand());
        return num;
 
}
 
string get_sign(const string & val) {
    string key;
    key.assign((const char *)KEY, 16);
    string sign = md5(val + key);
 
    return sign;
}
 
int output_http_header(int status, string desc, string mime = "text/html") {
    //_SETmode( _fileno( stdout ), _O_BINARY );
     
    printf("Param-Status: %d\r\n", status);
    printf("Param-Desc: %s\r\n", desc.c_str());
    printf("Content-type: %s\r\n", mime.c_str());
    printf("Content-Length: %d\r\n", strlen(desc.c_str())); // note: desc.size() is different from strlen(desc.c_str())
    printf("\r\n");
    printf("%s", desc.c_str());
 
    return 0;
}


网友评论    (发表评论)

共1 条评论 1/1页

发表评论：

评论须知：

  • 1、评论每次加2分，每天上限为30；
  • 2、请文明用语，共同创建干净的技术交流环境；
  • 3、若被发现提交非法信息，评论将会被删除，并且给予扣分处理，严重者给予封号处理；
  • 4、请勿发布广告信息或其他无关评论，否则将会删除评论并扣分，严重者给予封号处理。


扫码下载

加载中，请稍后...

输入口令后可复制整站源码

加载中，请稍后...