83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
#include "mongoose.h"
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static const char *server =
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"tcp://mail.domain.com:587"; // Change this! Your mail server and port
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static const char *user = "aaa@domain.com"; // Change this! Your mail account
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static const char *pass = "xxxxxxxxxxxxxx"; // Change this! Your mail password
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static const char *to = "bbb@domain.com"; // Change this! Destination email
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static const char *from = "My Mail Sender";
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static const char *subj = "Test email from Mongoose library!";
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static const char *mesg = "Hi!\nThis is a test message.\nBye.";
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static bool s_quit;
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enum { EHLO, STARTTLS, STARTTLS_WAIT, AUTH, FROM, TO, DATA, BODY, QUIT, END };
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static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
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uint8_t *state = (uint8_t *) c->data;
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if (ev == MG_EV_OPEN) {
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// c->is_hexdumping = 1;
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} else if (ev == MG_EV_READ) {
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if (c->recv.len > 0 && c->recv.buf[c->recv.len - 1] == '\n') {
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MG_INFO(("<-- %.*s", (int) c->recv.len - 2, c->recv.buf));
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c->recv.len = 0;
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if (*state == EHLO) {
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mg_printf(c, "EHLO myname\r\n");
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*state = STARTTLS;
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} else if (*state == STARTTLS) {
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mg_printf(c, "STARTTLS\r\n");
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*state = STARTTLS_WAIT;
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} else if (*state == STARTTLS_WAIT) {
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struct mg_tls_opts opts = {.ca = "ca.pem"};
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mg_tls_init(c, &opts);
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*state = AUTH;
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} else if (*state == AUTH) {
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char a[100], b[300] = "";
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size_t n = mg_snprintf(a, sizeof(a), "%c%s%c%s", 0, user, 0, pass);
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mg_base64_encode((uint8_t *) a, n, b);
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mg_printf(c, "AUTH PLAIN %s\r\n", b);
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*state = FROM;
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} else if (*state == FROM) {
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mg_printf(c, "MAIL FROM: <%s>\r\n", user);
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*state = TO;
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} else if (*state == TO) {
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mg_printf(c, "RCPT TO: <%s>\r\n", to);
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*state = DATA;
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} else if (*state == DATA) {
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mg_printf(c, "DATA\r\n");
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*state = BODY;
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} else if (*state == BODY) {
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mg_printf(c, "From: %s <%s>\r\n", from, user); // Mail header
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mg_printf(c, "Subject: %s\r\n", subj); // Mail header
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mg_printf(c, "\r\n"); // End of headers
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mg_printf(c, "%s\r\n", mesg); // Mail body
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mg_printf(c, ".\r\n"); // End of body
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*state = QUIT;
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} else if (*state == QUIT) {
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mg_printf(c, "QUIT\r\n");
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*state = END;
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} else {
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c->is_draining = 1;
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MG_INFO(("end"));
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}
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MG_INFO(("--> %.*s", (int) c->send.len - 2, c->send.buf));
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}
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} else if (ev == MG_EV_CLOSE) {
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s_quit = true;
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} else if (ev == MG_EV_TLS_HS) {
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MG_INFO(("TLS handshake done! Sending EHLO again"));
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mg_printf(c, "EHLO myname\r\n");
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}
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(void) fn_data, (void) ev_data;
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}
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int main(void) {
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struct mg_mgr mgr;
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mg_mgr_init(&mgr);
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// mg_log_set(MG_LL_VERBOSE);
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mg_connect(&mgr, server, fn, NULL);
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while (s_quit == false) mg_mgr_poll(&mgr, 1000);
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return 0;
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}
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