使用libcurl和C 将图片上传到密码保护的目录

Uploading a picture to a Password Protected Directory using libcurl and C++

本文关键字：密码保护 libcurl 使用      更新时间：2023-10-16

我正在尝试使用带有libcurl的C 应用程序上传图片到我的服务器上，我的服务器中的文件是一个受保护的目录，我尝试了我所知道的一切，但它不起作用。<<<<<<<<<<<<<<

struct curl_slist *headerlist = NULL;
        const char * Picture = "C:xxxx";
        FILE *fd = fopen(Picture, "rb");
        struct stat file_info;
        fstat(fileno(fd), &file_info);
        headerlist = curl_slist_append(headerlist, "user : xxxx");
        headerlist = curl_slist_append(headerlist, "password : xxxxx");
        headerlist = curl_slist_append(headerlist, "Content-Type: image/jpeg");

        curl = curl_easy_init();
            curl_easy_setopt(curl, CURLOPT_URL, "http://xxxx.000webhostapp.com/Pictures");
            curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
            curl_easy_setopt(curl, CURLOPT_POST, 1L);
            curl_easy_setopt(curl, CURLOPT_READDATA, fd);
            curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (curl_off_t)file_info.st_size);
            res = curl_easy_perform(curl);
    if (res != CURLE_OK)
    {
        MessageBox::Show("Picture Failed");
    }

        curl_easy_cleanup(curl);
        curl_global_cleanup();

user和password不是HTTP标头，因此您不应通过CURLOPT_HTTPHEADER传递它们。改用CURLOPT_USERNAME和CURLOPT_PASSWORD。还要查看CURLOPT_HTTPAUTH。

尝试以下操作：

curl_global_init(CURL_GLOBAL_ALL);
...
const char *Picture = "C:\xxxx";
FILE *fd = fopen(Picture, "rb");
if (!fd)
{
    MessageBox::Show("Cannot Open Picture File");
}
else
{
    struct stat file_info;
    fstat(fileno(fd), &file_info);
    curl = curl_easy_init();
    if (!curl)
    {
        MessageBox::Show("Cannot Initialize CURL Session");
    }    
    else
    {
        struct curl_slist *headerlist = curl_slist_append(NULL, "Content-Type: image/jpeg");
        curl_easy_setopt(curl, CURLOPT_URL, "http://xxxx.000webhostapp.com/Pictures");
        curl_easy_setopt(curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
        curl_easy_setopt(curl, CURLOPT_USERNAME, "xxxx");
        curl_easy_setopt(curl, CURLOPT_PASSWORD, "xxxxx");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
        curl_easy_setopt(curl, CURLOPT_POST, 1L);
        curl_easy_setopt(curl, CURLOPT_READDATA, fd);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (curl_off_t)file_info.st_size);
        res = curl_easy_perform(curl);    
        if (res != CURLE_OK)
        {
            MessageBox::Show("Picture Failed");
        }
        curl_easy_cleanup(curl);
    }
    fclose(fd);
}
...
curl_global_cleanup();
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