C/C++ curl로 메일보내기 예제

/***************************************************************************

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* Project ___| | | | _ \| |

* / __| | | | |_) | |

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* \___|\___/|_| \_\_____|

*

* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.

*

* This software is licensed as described in the file COPYING, which

* you should have received as part of this distribution. The terms

* are also available at https://curl.haxx.se/docs/copyright.html.

*

* You may opt to use, copy, modify, merge, publish, distribute and/or sell

* copies of the Software, and permit persons to whom the Software is

* furnished to do so, under the terms of the COPYING file.

*

* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY

* KIND, either express or implied.

*

***************************************************************************/

 

/* <DESC>

* SMTP example using TLS

* </DESC>

*/

 

#include <stdio.h>

#include <string.h>

#include <curl/curl.h>

 

/* This is a simple example showing how to send mail using libcurl's SMTP

* capabilities. It builds on the smtp-mail.c example to add authentication

* and, more importantly, transport security to protect the authentication

* details from being snooped.

*

* Note that this example requires libcurl 7.20.0 or above.

*/

 

#define FROM "<forkballpitch@gmail.com>"

#define TO ""

#define CC "<forkballpitch@gmail.com>"

 

static const char *payload_text[] = {

"Date: Mon, 29 Nov 2010 21:54:29 +1100\r\n",

"To: " TO "\r\n",

"From: " FROM " (Example User)\r\n",

"Cc: " CC " (Another example User)\r\n",

// "Message-ID: <dcd7cb36-11db-487a-9f3a-e652a9458efd@"

// "rfcpedant.example.org>\r\n",

"Subject: test~~~~\r\n",

"\r\n", /* empty line to divide headers from body, see RFC5322 */

"The body of the message starts here.\r\n",

"\r\n",

"\r\n",

"\r\n",

NULL

};

 

struct upload_status {

int lines_read;

};

 

static size_t payload_source(void *ptr, size_t size, size_t nmemb, void *userp)

{

struct upload_status *upload_ctx = (struct upload_status *)userp;

const char *data;

 

if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {

return 0;

}

 

data = payload_text[upload_ctx->lines_read];

printf("here!!!....%d....%s",upload_ctx->lines_read ,data);
if(upload_ctx->lines_read == 6){

    time_t t;
    struct tm *tm;
    char s[128];
    char pr[128] = "presentaion time: ";
    t = time(NULL);
    tm = localtime(&t);
    strftime(s, sizeof(s), "%Y/%m/%d-%H:%M:%S", tm);
    
    strcat(pr,s);
    strcat(pr,"\nmeeting attendees: forkballpitch\n------------------------------------");
    data = pr;
   
}

if(data) {

size_t len = strlen(data);

memcpy(ptr, data, len);

upload_ctx->lines_read++;



return len;

}

 

return 0;

}

 

int main(int argc, char *argv[])

{

CURL *curl;

CURLcode res = CURLE_OK;

struct curl_slist *recipients = NULL;

struct upload_status upload_ctx;

 

upload_ctx.lines_read = 0;

 

curl = curl_easy_init();

if(curl) {

/* Set username and password */

curl_easy_setopt(curl, CURLOPT_USERNAME, "forkballpitch@gmail.com");

curl_easy_setopt(curl, CURLOPT_PASSWORD, "password");

 

/* This is the URL for your mailserver. Note the use of port 587 here,

* instead of the normal SMTP port (25). Port 587 is commonly used for

* secure mail submission (see RFC4403), but you should use whatever

* matches your server configuration. */

curl_easy_setopt(curl, CURLOPT_URL, "smtp://smtp.gmail.com:587");

 

/* In this example, we'll start with a plain text connection, and upgrade

* to Transport Layer Security (TLS) using the STARTTLS command. Be careful

* of using CURLUSESSL_TRY here, because if TLS upgrade fails, the transfer

* will continue anyway - see the security discussion in the libcurl

* tutorial for more details. */

curl_easy_setopt(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_ALL);

 

/* If your server doesn't have a valid certificate, then you can disable

* part of the Transport Layer Security protection by setting the

* CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST options to 0 (false).

* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);

* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);

* That is, in general, a bad idea. It is still better than sending your

* authentication details in plain text though. Instead, you should get

* the issuer certificate (or the host certificate if the certificate is

* self-signed) and add it to the set of certificates that are known to

* libcurl using CURLOPT_CAINFO and/or CURLOPT_CAPATH. See docs/SSLCERTS

* for more information. */

//curl_easy_setopt(curl, CURLOPT_CAINFO, "/path/to/certificate.pem");

 

/* Note that this option isn't strictly required, omitting it will result

* in libcurl sending the MAIL FROM command with empty sender data. All

* autoresponses should have an empty reverse-path, and should be directed

* to the address in the reverse-path which triggered them. Otherwise,

* they could cause an endless loop. See RFC 5321 Section 4.5.5 for more

* details.

*/

curl_easy_setopt(curl, CURLOPT_MAIL_FROM, argv[1]);

 

printf("hello~~~~%s",argv[1]);

 

/* Add two recipients, in this particular case they correspond to the

* To: and Cc: addressees in the header, but they could be any kind of

* recipient. */

recipients = curl_slist_append(recipients, "<forkballpitch@gmail.com>");
recipients = curl_slist_append(recipients, "<forkballpitch@gmail.com>");
recipients = curl_slist_append(recipients, "<forkballpitch@gmail.com>");

recipients = curl_slist_append(recipients, CC);

curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);

 

/* We're using a callback function to specify the payload (the headers and

* body of the message). You could just use the CURLOPT_READDATA option to

* specify a FILE pointer to read from. */

curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);

curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);

curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);

 

/* Since the traffic will be encrypted, it is very useful to turn on debug

* information within libcurl to see what is happening during the transfer.

*/

curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);

 

/* Send the message */

res = curl_easy_perform(curl);

 

/* Check for errors */

if(res != CURLE_OK)

fprintf(stderr, "curl_easy_perform() failed: %s\n",

curl_easy_strerror(res));

 

/* Free the list of recipients */

curl_slist_free_all(recipients);

 

/* Always cleanup */

curl_easy_cleanup(curl);

}

 

return (int)res;

}