mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
Tasmota/tasmota/tasmota_xdrv_driver/xdrv_01_1_webserver_mail.ino

468 lines
12 KiB
C++
Raw Permalink Blame History

/*
xdrv_01_1_webserver_mail.ino - Mail client
SPDX-FileCopyrightText: 2019 Gerhard Mutz and Theo Arends
SPDX-License-Identifier: GPL-3.0-only
*/
#ifdef ESP8266
#ifdef USE_WEBSERVER
#ifdef USE_SENDMAIL
/*********************************************************************************************\
* ESP8266 SendMail works only with server port 465 SSL and doesnt support STARTTLS (not supported in Arduino)
* only a couple of mailservers support this (e.g. gmail,gmx,yahoo,freenetmail)
*
* sendmail [server:port:user:passwd:<from>:<to>:subject] body
*
* sendmail [*:*:*:*:*:to:subject] data uses defines from user_config_overwrite
* #define EMAIL_USER "user"
* #define EMAIL_PASSWORD "passwd"
* #define EMAIL_FROM "<mr.x@gmail.com>"
* #define EMAIL_SERVER "smtp.gmail.com"
* #define EMAIL_PORT 465
*
* Note : starting with this update, it is not required anymore to include emails in < > as they will
* be automatically added if needed
* if email body consist of a single * and scripter is present
* and a section >m is found, the lines in this section (until #) are sent as email body
*
* Some mail servers do not accept the IP address in the HELO (or EHLO) message but only a fully qualified
* domain name (FQDN). To overcome this, use the following define to override this behavior and enter the desired FQDN
* #define EMAIL_USER_DOMAIN "googlemail.com"
*
* sendmail works with pre2.6 using Light BearSSL
* HW Watchdog 8.44 sec.
* SW Watchdog 3.2 sec.
\*********************************************************************************************/
//#define DEBUG_EMAIL_PORT // Enable debugging
#ifndef MAIL_TIMEOUT
#define MAIL_TIMEOUT 2000
#endif
#ifndef SEND_MAIL_MINRAM
#define SEND_MAIL_MINRAM 12*1024
#endif
#define xPSTR(a) a
#include <base64.h>
#include "WiFiClientSecureLightBearSSL.h"
void script_send_email_body(void(*func)(char *));
/*********************************************************************************************/
#ifdef DEBUG_EMAIL_PORT
void MailWriteAddLogBuffer(String *buffer) {
AddLog(LOG_LEVEL_INFO, PSTR("MAI: > C: %s"), buffer->c_str());
}
void MailReadAddLogBuffer(String *buffer) {
AddLog(LOG_LEVEL_INFO, PSTR("MAI: < S: %s"), buffer->c_str());
}
#endif
/*********************************************************************************************/
class SendEmail
{
private:
const String host;
const int port;
const String user;
const String passwd;
const int timeout;
const bool ssl;
const int auth_used;
// use bear ssl
BearSSL::WiFiClientSecure_light *client;
String readClient();
public:
SendEmail(const String& host, const int port, const String& user, const String& passwd, const int timeout, const int auth_used);
bool send(const String& from, const String& to, const String& subject, const char *msg);
// void send_message_txt(char *msg);
~SendEmail() {client->stop(); delete client;}
};
WiFiClient *g_client;
SendEmail::SendEmail(const String& host, const int port, const String& user, const String& passwd, const int timeout, const int auth_used) :
host(host),
port(port),
user(user),
passwd(passwd),
timeout(timeout),
ssl(ssl),
auth_used(auth_used),
client(new BearSSL::WiFiClientSecure_light(1024,1024)) {
}
String SendEmail::readClient() {
delay(0);
String r = client->readStringUntil('\n');
r.trim();
while (client->available()) {
delay(0);
r += client->readString();
}
return r;
}
bool SendEmail::send(const String& _from, const String& _to, const String& subject, const char *msg) {
if (!host.length()) { return false; }
client->setTimeout(timeout);
client->setInsecure();
// smtp connect
#ifdef DEBUG_EMAIL_PORT
AddLog(LOG_LEVEL_INFO, PSTR("MAI: > C: connecting host %s on port %d"), host.c_str(), port);
#endif
if (!client->connect(host.c_str(), port)) {
#ifdef DEBUG_EMAIL_PORT
AddLog(LOG_LEVEL_INFO, PSTR("MAI: ! E: connection failed"));
#endif
return false;
}
String from, to;
from = ('<' == *_from.c_str()) ? _from : ("<" + _from + ">");
to = ('<' == *_to.c_str()) ? _to : ("<" + _to +">");
String buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("220"))) { return false; }
buffer = F("EHLO ");
#ifdef EMAIL_USER_DOMAIN
buffer += EMAIL_USER_DOMAIN;
#else
buffer += client->localIP().toString();
#endif
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("250"))) { return false; }
if ((user.length() > 0) && (passwd.length() > 0)) {
buffer = F("AUTH LOGIN");
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("334"))) { return false; }
base64 b;
buffer = b.encode(user);
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("334"))) { return false; }
buffer = b.encode(passwd);
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("235"))) { return false; }
}
// smtp send mail
buffer = F("MAIL FROM:");
buffer += from;
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("250"))) { return false; }
buffer = F("RCPT TO:");
buffer += to;
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("250"))) { return false; }
buffer = F("DATA");
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = readClient();
#ifdef DEBUG_EMAIL_PORT
MailReadAddLogBuffer(&buffer);
#endif
if (!buffer.startsWith(F("354"))) { return false; }
buffer = F("From: ");
buffer += from;
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = F("To: ");
buffer += to;
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = F("Subject: ");
buffer += subject;
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
/*-------------------------------------------------------------------------------------------*/
#ifdef USE_SCRIPT
if (*msg == '*' && *(msg +1) == 0) {
buffer = F("MIME-Version: 1.0\r\n");
client->print(buffer);
buffer = F("Content-Type: Multipart/mixed; boundary=frontier\r\n\r\n");
client->print(buffer);
g_client = client;
script_send_email_body(send_message_txt);
} else {
#endif // USE_SCRIPT
buffer = F("\r\n");
client->print(buffer);
client->println(msg);
#ifdef USE_SCRIPT
}
#endif // USE_SCRIPT
/*-------------------------------------------------------------------------------------------*/
client->println('.');
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
buffer = F("QUIT");
client->println(buffer);
#ifdef DEBUG_EMAIL_PORT
MailWriteAddLogBuffer(&buffer);
#endif
return true;
}
/*********************************************************************************************/
uint16_t SendMail(char *buffer) {
// return if not enough memory
uint16_t mem = ESP_getFreeHeap();
if (mem < SEND_MAIL_MINRAM) { return 4; }
while (*buffer == ' ') { buffer++; }
if (*buffer != '[') { return 1; }
buffer++;
char *endcmd = strchr(buffer, ']');
if (!endcmd) { return 1; }
// copy params
uint16_t blen = (uint32_t)endcmd - (uint32_t)buffer;
char *oparams = (char*)calloc(blen +2, 1);
if (!oparams) { return 4; }
uint16_t status = 1;
char *params = oparams;
strncpy(oparams, buffer, blen +2);
oparams[blen] = 0;
const char *cmd = endcmd +1;
#ifdef DEBUG_EMAIL_PORT
AddLog(LOG_LEVEL_INFO, PSTR("MAI: Size: %d"), blen);
#endif
const char *mserv = strtok(params, ":");
if (mserv) {
// port
const char *pstr = strtok(NULL, ":");
if (pstr) {
uint16_t port;
#ifdef EMAIL_PORT
port = (*pstr == '*') ? EMAIL_PORT : atoi(pstr);
#else
port = atoi(pstr);
#endif
const char *user = strtok(NULL, ":");
if (user) {
const char *passwd = strtok(NULL, ":");
if (passwd) {
const char *from = strtok(NULL, ":");
if (from) {
const char *to = strtok(NULL,":");
if (to) {
const char *subject = strtok(NULL, "]");
if (subject) {
#ifdef EMAIL_USER
if (*user == '*') { user = xPSTR(EMAIL_USER); }
#endif
#ifdef EMAIL_PASSWORD
if (*passwd == '*') { passwd = xPSTR(EMAIL_PASSWORD); }
#endif
#ifdef EMAIL_SERVER
if (*mserv == '*') { mserv = xPSTR(EMAIL_SERVER); }
#endif
#ifdef DEBUG_EMAIL_PORT
AddLog(LOG_LEVEL_INFO, PSTR("MAI: %s, %d, %s, %s"), mserv, port, user, passwd);
#endif
#ifdef EMAIL_FROM
if (*from == '*') { from = xPSTR(EMAIL_FROM); }
#endif
#ifdef DEBUG_EMAIL_PORT
AddLog(LOG_LEVEL_INFO, PSTR("MAI: %s, %s, %s, %s"), from, to, subject, cmd);
#endif
char auth = 0;
SendEmail *mail = new SendEmail(mserv, port, user, passwd, MAIL_TIMEOUT, auth);
if (mail) {
bool result = mail->send(from, to, subject, cmd);
delete mail;
if (result == true) { status = 0; }
}
}
}
}
}
}
}
}
if (oparams) { free(oparams); }
return status;
}
/*********************************************************************************************/
#ifdef USE_SCRIPT
#ifdef USE_UFILESYS
#include <LittleFS.h>
extern FS *ufsp;
void attach_File(char *path) {
char *cp = path;
while (*cp == '/') { cp++; }
File file = ufsp->open(path, "r");
if (file) {
char buff[64];
snprintf_P(buff, sizeof(buff), PSTR("Content-Disposition: attachment; filename=\"%s\"\r\n\r\n"), cp);
g_client->write(buff);
uint16_t flen = file.size();
uint8_t fbuff[64];
uint16_t blen = sizeof(fbuff);
while (flen > 0) {
file.read(fbuff, blen);
flen -= blen;
g_client->write(fbuff, blen);
if (flen < blen) { blen = flen; }
}
file.close();
} else {
g_client->print(F("\r\n\r\nfile not found!\r\n"));
}
}
#endif // USE_UFILESYS
float *get_array_by_name(char *name, uint16_t *alen);
void flt2char(float num, char *nbuff);
void attach_Array(char *aname) {
uint16_t alen;
float *array = get_array_by_name(aname, &alen);
if (array && alen) {
#ifdef DEBUG_EMAIL_PORT
AddLog(LOG_LEVEL_INFO, PSTR("MAI: Array found %d"), alen);
#endif
char buff[64];
snprintf_P(buff, sizeof(buff), PSTR("Content-Disposition: attachment; filename=\"%s.txt\"\r\n\r\n"), aname);
g_client->write(buff);
// send timestamp
strcpy(buff, GetDateAndTime(DT_LOCAL).c_str());
strcat(buff, "\t");
g_client->write(buff);
float *fp=array;
for (uint32_t cnt = 0; cnt < alen; cnt++) {
// export array as tab gelimited text
char nbuff[16];
flt2char(*fp++, nbuff);
if (cnt < (alen - 1)) {
strcat(nbuff, "\t");
} else {
strcat(nbuff, "\n");
}
g_client->write(nbuff, strlen(nbuff));
}
} else {
g_client->print(F("\r\n\r\narray not found!\r\n"));
}
}
void send_message_txt(char *txt) {
g_client->print(F("--frontier\r\n"));
g_client->print(F("Content-Type: text/plain\r\n"));
if (*txt == '&') {
txt++;
attach_Array(txt);
#ifdef USE_UFILESYS
} else if (*txt == '@') {
txt++;
attach_File(txt);
#endif // USE_UFILESYS
} else {
g_client->print(F("\r\n"));
g_client->println(txt);
}
g_client->print(F("\r\n--frontier\r\n"));
}
#endif // USE_SCRIPT
/*********************************************************************************************/
#endif // USE_SENDMAIL
#endif // USE_WEBSERVER
#endif // ESP8266
Reference in New Issue View Git Blame Copy Permalink