如何解决CURL电子邮件发送出现附件问题
我尝试使用libcurl发送电子邮件。我只能发送带有文本的电子邮件，但是尝试使用附件发送电子邮件时遇到麻烦。我从官方网站https://curl.haxx.se/libcurl/c/smtp-mime.html
使用此示例#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
#define FROM "<Kuzka30z@yandex.ru>"
#define TO "<mihedovkos@gmail.com>"
#define CC "<info@example.org>"
static const char *headers_text[] = {
"Date: Tue,22 Aug 2017 14:08:43 +0100","To: " TO,"From: " FROM " (Example User)","Cc: " CC " (Another example User)","Message-ID: <dcd7cb36-16gb-487a-9f3a-e652a9458efd@"
"rfcpedant.example.org>",/// I change ID every sending
"Subject: example sending a MIME-formatted message",NULL
};
static const char inline_text[] =
"This is the inline text message of the e-mail.\r\n"
"\r\n"
" It could be a lot of lines that would be displayed in an e-mail\r\n"
"viewer that is not able to handle HTML.\r\n";
static const char inline_html[] =
"<html><body>\r\n"
"<p>This is the inline <b>HTML</b> message of the e-mail.</p>"
"<br />\r\n"
"<p>It could be a lot of HTML data that would be displayed by "
"e-mail viewers able to handle HTML.</p>"
"</body></html>\r\n";
int main() {
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
struct curl_slist *headers = NULL;
struct curl_slist *recipients = NULL;
struct curl_slist *slist = NULL;
curl_mime *mime;
curl_mime *alt;
curl_mimepart *part;
const char **cpp;
curl_easy_setopt(curl,CURLOPT_URL,"smtps://smtp.yandex.ru");
curl_easy_setopt(curl,CURLOPT_MAIL_FROM,FROM);
recipients = curl_slist_append(recipients,TO);
recipients = curl_slist_append(recipients,CC);
curl_easy_setopt(curl,CURLOPT_MAIL_RCPT,recipients);
curl_easy_setopt(curl,CURLOPT_USERNAME,"Kuzka30z"); ///Yandex SMTP need another login,than email
curl_easy_setopt(curl,CURLOPT_PASSWORD,"Password"); /// This password unreal
for(cpp = headers_text; *cpp; cpp++)
headers = curl_slist_append(headers,*cpp);
curl_easy_setopt(curl,CURLOPT_HTTPHEADER,headers);
mime = curl_mime_init(curl);
alt = curl_mime_init(curl);
part = curl_mime_addpart(alt);
curl_mime_data(part,inline_html,CURL_ZERO_TERMINATED);
curl_mime_type(part,"text/html")
part = curl_mime_addpart(alt);
curl_mime_data(part,inline_text,CURL_ZERO_TERMINATED);
part = curl_mime_addpart(mime);
curl_mime_subparts(part,alt);
curl_mime_type(part,"image/jpeg"); ///O try to chnge mime and commented this line
slist = curl_slist_append(NULL,"Content-Disposition: inline"); ///This line I tried comment too
curl_mime_headers(part,slist,1);
part = curl_mime_addpart(mime);
curl_mime_filedata(part,"/home/konstantimp/Pictures/Background/akatsiia_listia_kust_181905_1280x720.jpg");
curl_easy_setopt(curl,CURLOPT_MIMEPOST,mime);
res = curl_easy_perform(curl);
if(res != CURLE_OK)
fprintf(stderr,"curl_easy_perform() failed: %s\n",curl_easy_strerror(res));
curl_slist_free_all(recipients);
curl_slist_free_all(headers);
curl_easy_cleanup(curl);
curl_mime_free(mime);
}
return 0;
}
它可以工作，但是如果我发送带有'\ n'新行符号的文件，它将在“ \ r \ n”上更改。我以为是错误的mime类型，但是我先更改了它（它不起作用），然后用设置类型（curl_mime_type（part，“ multipart / alternative”）;）注释了行。它也不起作用。
然后我尝试发送图像文件。我发送了.jpeg和.gif，但它们发送不正确...
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。