579 lines
15 KiB
C++
579 lines
15 KiB
C++
#include "EMailSender.h"
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//#include <SPIFFS.h>
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//#include <LittleFS.h>
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//#define SD SPIFFS
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// BASE64 -----------------------------------------------------------
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const char PROGMEM b64_alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz"
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"0123456789+/";
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#define encode64(arr) encode64_f(arr,strlen(arr))
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inline void a3_to_a4(unsigned char * a4, unsigned char * a3) {
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a4[0] = (a3[0] & 0xfc) >> 2;
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a4[1] = ((a3[0] & 0x03) << 4) + ((a3[1] & 0xf0) >> 4);
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a4[2] = ((a3[1] & 0x0f) << 2) + ((a3[2] & 0xc0) >> 6);
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a4[3] = (a3[2] & 0x3f);
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}
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int base64_encode(char *output, char *input, int inputLen) {
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int i = 0, j = 0;
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int encLen = 0;
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unsigned char a3[3];
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unsigned char a4[4];
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while (inputLen--) {
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a3[i++] = *(input++);
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if (i == 3) {
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a3_to_a4(a4, a3);
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for (i = 0; i < 4; i++) {
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output[encLen++] = pgm_read_byte(&b64_alphabet[a4[i]]);
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}
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i = 0;
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}
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}
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if (i) {
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for (j = i; j < 3; j++) {
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a3[j] = '\0';
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}
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a3_to_a4(a4, a3);
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for (j = 0; j < i + 1; j++) {
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output[encLen++] = pgm_read_byte(&b64_alphabet[a4[j]]);
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}
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while ((i++ < 3)) {
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output[encLen++] = '=';
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}
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}
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output[encLen] = '\0';
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return encLen;
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}
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int base64_enc_length(int plainLen) {
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int n = plainLen;
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return (n + 2 - ((n + 2) % 3)) / 3 * 4;
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}
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const char* encode64_f(char* input, uint8_t len) {
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// encoding
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DEBUG_PRINTLN(F("Encoding"));
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DEBUG_PRINTLN(input);
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DEBUG_PRINTLN(len);
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//int encodedLen =
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base64_enc_length(len);
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static char encoded[256];
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// note input is consumed in this step: it will be empty afterwards
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base64_encode(encoded, input, len);
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return encoded;
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}
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// END BASE64 ---------------------------------------------------------
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EMailSender::EMailSender(const char* email_login, const char* email_password, const char* email_from, // @suppress("Class members should be properly initialized")
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const char* smtp_server, uint16_t smtp_port) {
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this->setEMailLogin(email_login);
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this->setEMailFrom(email_from);
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this->setEMailPassword(email_password);
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this->setSMTPServer(smtp_server);
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this->setSMTPPort(smtp_port);
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// this->isSecure = isSecure;
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}
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EMailSender::EMailSender(const char* email_login, const char* email_password, const char* email_from) { // @suppress("Class members should be properly initialized")
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this->setEMailLogin(email_login);
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this->setEMailFrom(email_from);
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this->setEMailPassword(email_password);
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// this->isSecure = isSecure;
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}
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EMailSender::EMailSender(const char* email_login, const char* email_password){ // @suppress("Class members should be properly initialized")
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this->setEMailLogin(email_login);
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this->setEMailFrom(email_login);
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this->setEMailPassword(email_password);
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// this->isSecure = isSecure;
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}
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void EMailSender::setSMTPPort(uint16_t smtp_port){
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this->smtp_port = smtp_port;
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};
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void EMailSender::setSMTPServer(const char* smtp_server){
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delete [] this->smtp_server;
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this->smtp_server = new char[strlen(smtp_server)+1];
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strcpy(this->smtp_server, smtp_server);
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};
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void EMailSender::setEMailLogin(const char* email_login){
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delete [] this->email_login;
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this->email_login = new char[strlen(email_login)+1];
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strcpy(this->email_login, email_login);
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};
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void EMailSender::setEMailFrom(const char* email_from){
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delete [] this->email_from;
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this->email_from = new char[strlen(email_from)+1];
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strcpy(this->email_from, email_from);
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};
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void EMailSender::setEMailPassword(const char* email_password){
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delete [] this->email_password;
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this->email_password = new char[strlen(email_password)+1];
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strcpy(this->email_password, email_password);
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};
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void EMailSender::setIsSecure(bool isSecure) {
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this->isSecure = isSecure;
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}
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EMailSender::Response EMailSender::awaitSMTPResponse(EMAIL_NETWORK_CLASS &client,
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const char* resp, const char* respDesc, uint16_t timeOut) {
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EMailSender::Response response;
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uint32_t ts = millis();
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while (!client.available()) {
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if (millis() > (ts + timeOut)) {
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response.code = F("1");
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response.desc = F("SMTP Response TIMEOUT!");
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response.status = false;
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return response;
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}
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}
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_serverResponce = client.readStringUntil('\n');
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DEBUG_PRINTLN(_serverResponce);
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if (resp && _serverResponce.indexOf(resp) == -1){
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response.code = resp;
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response.desc = respDesc +String(" (") + _serverResponce + String(")");
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response.status = false;
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return response;
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}
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response.status = true;
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return response;
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}
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static const char cb64[]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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void encodeblock(unsigned char in[3],unsigned char out[4],int len) {
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out[0]=cb64[in[0]>>2]; out[1]=cb64[((in[0]&0x03)<<4)|((in[1]&0xF0)>>4)];
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out[2]=(unsigned char) (len>1 ? cb64[((in[1]&0x0F)<<2)|((in[2]&0xC0)>>6)] : '=');
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out[3]=(unsigned char) (len>2 ? cb64[in[2]&0x3F] : '=');
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}
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#if (defined(STORAGE_SPIFFS_ENABLED) && defined(FS_NO_GLOBALS))
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void encode(fs::File *file, EMAIL_NETWORK_CLASS *client) {
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unsigned char in[3],out[4];
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int i,len,blocksout=0;
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while (file->available()!=0) {
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len=0;
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for (i=0;i<3;i++){
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in[i]=(unsigned char) file->read();
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if (file->available()!=0) len++;
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else in[i]=0;
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}
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if (len){
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encodeblock(in,out,len);
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// for(i=0;i<4;i++) client->write(out[i]);
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client->write(out, 4);
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blocksout++; }
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if (blocksout>=19||file->available()==0){
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if (blocksout) {
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client->print("\r\n");
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}
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blocksout=0;
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}
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}
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}
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#endif
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#if (defined(STORAGE_SD_ENABLED) || (defined(STORAGE_SPIFFS_ENABLED) && !defined(FS_NO_GLOBALS)))
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void encode(File *file, EMAIL_NETWORK_CLASS *client) {
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unsigned char in[3],out[4];
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int i,len,blocksout=0;
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while (file->available()!=0) {
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len=0;
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for (i=0;i<3;i++){
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in[i]=(unsigned char) file->read();
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if (file->available()!=0) len++;
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else in[i]=0;
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}
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if (len){
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encodeblock(in,out,len);
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// for(i=0;i<4;i++) client->write(out[i]);
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client->write(out, 4);
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blocksout++; }
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if (blocksout>=19||file->available()==0){
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if (blocksout) {
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client->print("\r\n");
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}
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blocksout=0;
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}
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}
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}
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#endif
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EMailSender::Response EMailSender::send(const char* to, EMailMessage &email, Attachments attachments){
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DEBUG_PRINT(F("ONLY ONE RECIPIENT"));
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const char* arrEmail[] = {to};
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return send(arrEmail, 1, email, attachments);
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}
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EMailSender::Response EMailSender::send(const char* to[], byte sizeOfTo, EMailMessage &email, Attachments attachments) {
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return send(to, sizeOfTo, 0, email, attachments);
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}
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EMailSender::Response EMailSender::send(const char* to[], byte sizeOfTo, byte sizeOfCc, EMailMessage &email, Attachments attachments)
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{
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return send(to, sizeOfTo, sizeOfCc, 0, email, attachments);
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}
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EMailSender::Response EMailSender::send(const char* to[], byte sizeOfTo, byte sizeOfCc,byte sizeOfCCn, EMailMessage &email, Attachments attachments)
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{
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EMAIL_NETWORK_CLASS client;
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// SSLClient client(base_client, TAs, (size_t)TAs_NUM, A5);
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DEBUG_PRINT(F("Insecure client:"));
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DEBUG_PRINTLN(this->isSecure);
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#if (EMAIL_NETWORK_TYPE == NETWORK_ESP8266 || EMAIL_NETWORK_TYPE == NETWORK_ESP8266_242)
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#ifndef ARDUINO_ESP8266_RELEASE_2_4_2
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if (this->isSecure == false){
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client.setInsecure();
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bool mfln = client.probeMaxFragmentLength(this->smtp_server, this->smtp_port, 512);
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DEBUG_PRINT("MFLN supported: ");
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DEBUG_PRINTLN(mfln?"yes":"no");
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if (mfln) {
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client.setBufferSizes(512, 512);
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}
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}
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#endif
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#endif
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EMailSender::Response response;
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if(!client.connect(this->smtp_server, this->smtp_port)) {
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response.desc = F("Could not connect to mail server");
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response.code = F("2");
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response.status = false;
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return response;
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}
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response = awaitSMTPResponse(client, "220", "Connection Error");
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if (!response.status) return response;
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String helo = "HELO "+String(publicIPDescriptor)+": ";
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DEBUG_PRINTLN(helo);
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client.println(helo);
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response = awaitSMTPResponse(client, "250", "Identification error");
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if (!response.status) return response;
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if (useAuth){
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DEBUG_PRINTLN(F("AUTH LOGIN:"));
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client.println(F("AUTH LOGIN"));
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awaitSMTPResponse(client);
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DEBUG_PRINTLN(encode64(this->email_login));
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client.println(encode64(this->email_login));
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awaitSMTPResponse(client);
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DEBUG_PRINTLN(encode64(this->email_password));
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client.println(encode64(this->email_password));
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response = awaitSMTPResponse(client, "235", "SMTP AUTH error");
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if (!response.status) return response;
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}
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DEBUG_PRINT(F("MAIL FROM: <"));
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DEBUG_PRINT(this->email_from);
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DEBUG_PRINTLN(F(">"));
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client.print(F("MAIL FROM: <"));
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client.print(this->email_from);
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client.println(F(">"));
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awaitSMTPResponse(client);
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// String rcpt = "RCPT TO: <" + String(to) + '>';
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//
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// DEBUG_PRINTLN(rcpt);
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// client.println(rcpt);
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int cont;
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for (cont=0;cont<(sizeOfTo+sizeOfCc+sizeOfCCn);cont++){
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DEBUG_PRINT(F("RCPT TO: <"));
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DEBUG_PRINT(to[cont]);
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DEBUG_PRINTLN(F(">"));
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client.print(F("RCPT TO: <"));
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client.print(to[cont]);
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client.println(F(">"));
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awaitSMTPResponse(client);
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}
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DEBUG_PRINTLN(F("DATA:"));
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client.println(F("DATA"));
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response = awaitSMTPResponse(client, "354", "SMTP DATA error");
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if (!response.status) return response;
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// client.println("From: <" + String(this->email_from) + '>');
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client.print(F("From: <"));
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client.print(this->email_from);
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client.println(F(">"));
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// client.println("To: <" + String(to) + '>');
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client.print(F("To: "));
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for (cont=0;cont<sizeOfTo;cont++){
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client.print(F("<"));
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client.print(to[cont]);
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client.print(">");
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if (cont!=sizeOfTo-1){
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client.print(",");
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}
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}
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client.println();
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if (sizeOfCc>0){
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client.print(F("Cc: "));
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for (;cont<sizeOfTo+sizeOfCc;cont++){
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client.print(F("<"));
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client.print(to[cont]);
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client.print(">");
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if (cont!=sizeOfCc-1){
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client.print(",");
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}
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}
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client.println();
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}
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if (sizeOfCCn>0){
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client.print(F("CCn: "));
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for (;cont<sizeOfTo+sizeOfCc+sizeOfCCn;cont++){
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client.print(F("<"));
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client.print(to[cont]);
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client.print(">");
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if (cont!=sizeOfCCn-1){
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client.print(",");
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}
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}
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client.println();
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}
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client.print(F("Subject: "));
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client.println(email.subject);
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// client.println(F("Mime-Version: 1.0"));
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client.println(F("MIME-Version: 1.0"));
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client.println(F("Content-Type: Multipart/mixed; boundary=frontier"));
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client.println(F("--frontier"));
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client.print(F("Content-Type: "));
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client.print(email.mime);
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client.println(F("; charset=\"UTF-8\""));
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// client.println(F("Content-Type: text/html; charset=\"UTF-8\""));
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client.println(F("Content-Transfer-Encoding: 7bit"));
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client.println();
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if (email.mime==F("text/html")){
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// String body = "<!DOCTYPE html><html lang=\"en\">" + String(email.message) + "</html>";
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client.print(F("<!DOCTYPE html><html lang=\"en\">"));
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client.print(email.message);
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client.println(F("</html>"));
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// client.println(body);
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}else{
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client.println(email.message);
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}
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client.println();
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#ifdef STORAGE_SPIFFS_ENABLED
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bool spiffsActive = false;
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#endif
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#ifdef STORAGE_SD_ENABLED
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bool sdActive = false;
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#endif
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#if defined(ENABLE_ATTACHMENTS) && (defined(STORAGE_SD_ENABLED) || defined(STORAGE_SPIFFS_ENABLED))
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// if ((sizeof(attachs) / sizeof(attachs[0]))>0){
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if (sizeof(attachments)>0 && attachments.number>0){
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DEBUG_PRINT(F("Array: "));
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// for (int i = 0; i<(sizeof(attachs) / sizeof(attachs[0])); i++){
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for (int i = 0; i<attachments.number; i++){
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uint8_t tBuf[64];
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DEBUG_PRINTLN(attachments.fileDescriptor[i].filename);
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client.println(F("--frontier"));
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client.print(F("Content-Type: "));
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client.print(attachments.fileDescriptor[i].mime);
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client.println(F("; charset=\"UTF-8\""));
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if (attachments.fileDescriptor[i].encode64){
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client.println(F("Content-Transfer-Encoding: base64"));
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}
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client.print(F("Content-Disposition: attachment; filename="));
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client.print(attachments.fileDescriptor[i].filename);
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client.println("\n");
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int clientCount = 0;
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#ifdef STORAGE_SPIFFS_ENABLED
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if (attachments.fileDescriptor[i].storageType==EMAIL_STORAGE_TYPE_SPIFFS){
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#ifdef OPEN_CLOSE_SPIFFS
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if(!SPIFFS.begin()){
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EMailSender::Response response;
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response.code = F("500");
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response.desc = F("Error on startup SPIFFS filesystem!");
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response.status = false;
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return response;
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}
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spiffsActive = true;
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#endif
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fs::File myFile = SPIFFS.open(attachments.fileDescriptor[i].url, "r");
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if(myFile) {
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if (attachments.fileDescriptor[i].encode64){
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encode(&myFile, &client);
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}else{
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while(myFile.available()) {
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clientCount = myFile.read(tBuf,64);
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client.write((byte*)tBuf,clientCount);
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}
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}
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myFile.close();
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client.println();
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}
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else {
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EMailSender::Response response;
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response.code = F("404");
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response.desc = "Error opening attachments file "+attachments.fileDescriptor[i].url;
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response.status = false;
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return response;
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}
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}
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#endif
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#ifdef STORAGE_SD_ENABLED
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if (attachments.fileDescriptor[i].storageType==EMAIL_STORAGE_TYPE_SD){
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// File myFile = SD.open(attachments.fileDescriptor[i].url, "r");
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// if(myFile) {
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// while(myFile.available()) {
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// clientCount = myFile.read(tBuf,64);
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// client.write((byte*)tBuf,clientCount);
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// }
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// myFile.close();
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// }
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// else {
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// EMailSender::Response response;
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// response.code = "404";
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// response.desc = "Error opening attachments file "+attachments.fileDescriptor[i].url;
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// response.status = false;
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// return response;
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// }
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#ifdef OPEN_CLOSE_SD
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DEBUG_PRINTLN(F("SD Check"));
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if(!SD.begin(4)){
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response.code = F("500");
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response.desc = F("Error on startup SD filesystem!");
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response.status = false;
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return response;
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}
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sdActive = true;
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#endif
|
|
|
|
DEBUG_PRINTLN(F("Open file: "));
|
|
File myFile = SD.open(attachments.fileDescriptor[i].url.c_str());
|
|
if(myFile) {
|
|
myFile.seek(0);
|
|
DEBUG_PRINTLN(F("OK"));
|
|
if (attachments.fileDescriptor[i].encode64){
|
|
DEBUG_PRINTLN(F("BASE 64"));
|
|
encode(&myFile, &client);
|
|
}else{
|
|
DEBUG_PRINTLN(F("NORMAL"));
|
|
while(myFile.available()) {
|
|
clientCount = myFile.read(tBuf,64);
|
|
client.write((byte*)tBuf,clientCount);
|
|
}
|
|
}
|
|
myFile.close();
|
|
|
|
client.println();
|
|
}
|
|
else {
|
|
response.code = F("404");
|
|
response.desc = "Error opening attachments file "+attachments.fileDescriptor[i].url;
|
|
response.status = false;
|
|
return response;
|
|
}
|
|
|
|
}
|
|
#endif
|
|
|
|
}
|
|
client.println();
|
|
client.println(F("--frontier--"));
|
|
#ifdef STORAGE_SD_ENABLED
|
|
#ifdef OPEN_CLOSE_SD
|
|
if (sdActive){
|
|
DEBUG_PRINTLN(F("SD end"));
|
|
#ifndef ARDUINO_ESP8266_RELEASE_2_4_2
|
|
SD.end();
|
|
#endif
|
|
DEBUG_PRINTLN(F("SD end 2"));
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef STORAGE_SPIFFS_ENABLED
|
|
#ifdef OPEN_CLOSE_SPIFFS
|
|
if (spiffsActive){
|
|
SPIFFS.end();
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
DEBUG_PRINTLN(F("Message end"));
|
|
client.println(F("."));
|
|
|
|
response = awaitSMTPResponse(client, "250", "Sending message error");
|
|
if (!response.status) return response;
|
|
|
|
client.println(F("QUIT"));
|
|
|
|
response = awaitSMTPResponse(client, "221", "SMTP QUIT error");
|
|
if (!response.status) return response;
|
|
|
|
response.status = true;
|
|
response.code = F("0");
|
|
response.desc = F("Message sent!");
|
|
|
|
return response;
|
|
}
|
|
|