GainSpan Wi-Fi library

Diff: GSwifi_smtp.cpp

Revision:

18:4b97804c37d1

Child:

19:cad912f5a6ba

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifi_smtp.cpp	Thu Nov 01 02:55:57 2012 +0000
@@ -0,0 +1,107 @@
+#include "dbg.h"
+#include "mbed.h"
+#include "GSwifi.h"
+
+int GSwifi::mail (Host &host, char *to, char *from, char *subject, char *mesg, char *user, char *pwd) {
+    int ret = -1;
+    int cid;
+
+    if (! _connect || _status != GSSTAT_READY) return -1;
+
+    if (host.getIp().isNull()) {
+        if (getHostByName(host)) {
+            if (getHostByName(host)) return -1;
+        }
+    }
+    if (host.getPort() == 0) {
+        host.setPort(25);
+    }
+
+    cid = open(host, GSPROT_TCP);
+    if (cid < 0) return -1;
+    DBG("cid %d\r\n", cid);
+
+    if (wait_smtp(cid ,220)) goto exit;
+
+    // send request
+    send(cid, "EHLO gainspan\r\n", 15);
+    wait_ms(100);
+    if (wait_smtp(cid ,250)) goto exit;
+
+    if (user && pwd) {
+        // smtp auth
+        char tmp[80], buf[100];
+        int len;
+        snprintf(tmp, sizeof(tmp), "%s%c%s%c%s", user, 0, user, 0, pwd);
+        len = strlen(user) * 2 + strlen(pwd) + 2;
+        base64encode(tmp, len, buf, sizeof(buf));
+        send(cid, "AUTH PLAIN ", 11);
+        send(cid, buf, strlen(buf));
+        send(cid, "\r\n", 2);
+        if (wait_smtp(cid ,235)) goto quit;
+    }
+ 
+    send(cid, "MAIL FROM: ", 11);
+    send(cid, from, strlen(from));
+    send(cid, "\r\n", 2);
+    if (wait_smtp(cid ,250)) goto quit;
+ 
+    send(cid, "RCPT TO: ", 9);
+    send(cid, to, strlen(to));
+    send(cid, "\r\n", 2);
+    if (wait_smtp(cid ,250)) goto quit;
+ 
+    send(cid, "DATA\r\n", 6);
+    if (wait_smtp(cid ,354)) goto quit;
+ 
+    // mail data
+    send(cid, mesg, strlen(mesg));
+    send(cid, "\r\n.\r\n", 5);
+    if (wait_smtp(cid ,250)) goto quit;
+    ret = 0;
+ 
+quit:
+    send(cid, "QUIT\r\n", 6);
+    if (wait_smtp(cid ,221)) goto exit;
+ 
+exit:
+    close(cid);
+    return ret;
+}
+
+int GSwifi::wait_smtp (int cid, int code) {
+    Timer timeout;
+    int i, n, len = 0;
+    char buf[500], data[100];
+
+    // wait responce
+    timeout.start();
+    while (timeout.read_ms() < SMTP_TIMEOUT) {
+        wait_ms(100);
+        poll();
+        n = recv(cid, buf, sizeof(buf));
+        for (i = 0; i < n; i ++) {
+            if (buf[i] == '\r') continue;
+            if (buf[i] == '\n') {
+                if (len == 0) continue;
+                goto next;
+            } else
+            if (len < sizeof(data) - 1) {
+                data[len] = buf[i];
+                len ++;
+            }
+        }
+    }
+next:
+    data[len] = 0;
+    len = 0;
+    DBG("smtp: %s\r\n", data);
+    timeout.stop();
+ 
+    // check return code
+    i = atoi(data);
+    DBG("smtp status %d\r\n", i);
+    if (i == code) return 0;
+ 
+    return -1;
+}