Add pattern matching in order to support 2XX status codes

Author: carrascoacd

Http.cpp

@@ -2,7 +2,7 @@
  * Http.cpp
  * A HTTP library for the SIM800L board
  *
- * Copyright 2016 Antonio Carrasco
+ * Copyright 2018 Antonio Carrasco
  *
  * The MIT License (MIT)
  *
@@ -52,7 +52,7 @@
 
 #define OK "OK\r\n"
 #define DOWNLOAD "DOWNLOAD"
-#define HTTP_200 ",200,"
+#define HTTP_2XX ",2XX,"
 #define HTTPS_PREFIX "https://"
 #define CONNECTED "+CREG: 0,1"
 #define BEARER_OPEN "+SAPBR: 1,1"
@@ -137,7 +137,7 @@ Result HTTP::post(const char *uri, const char *body, char *response) {
   delay(500);
   sendCmd(body);
 
-  if (sendCmdAndWaitForResp(HTTP_POST, HTTP_200, delayToDownload) == TRUE) {
+  if (sendCmdAndWaitForResp(HTTP_POST, HTTP_2XX, delayToDownload) == TRUE) {
     sendCmd(HTTP_READ);
     readResponse(response);
     result = SUCCESS;
@@ -153,7 +153,7 @@ Result HTTP::get(const char *uri, char *response) {
 
   Result result = setHTTPSession(uri);
 
-  if (sendCmdAndWaitForResp(HTTP_GET, HTTP_200, 2000) == TRUE) {
+  if (sendCmdAndWaitForResp(HTTP_GET, HTTP_2XX, 2000) == TRUE) {
     sendCmd(HTTP_READ);
     result = SUCCESS;
     readResponse(response);

Http.h

@@ -2,7 +2,7 @@
  * Http.h
  * A HTTP library for the SIM800L board
  *
- * Copyright 2016 Antonio Carrasco
+ * Copyright 2018 Antonio Carrasco
  *
  * The MIT License (MIT)
  *

Sim800.cpp

@@ -3,7 +3,7 @@
  * A library for SeeedStudio seeeduino GPRS shield
  *
  * Original work Copyright (c) 2013 seeed technology inc. [lawliet zou]
- * Modified work Copyright 2016 Antonio Carrasco
+ * Modified work Copyright 2018 Antonio Carrasco
  *
  * The MIT License (MIT)
  *
@@ -105,7 +105,7 @@ int SIM800::waitForResp(const char *resp, unsigned int timeout)
         if(serialSIM800.available()) {
             char c = serialSIM800.read();
             if (debugMode) Serial.print(c);
-            sum = (c==resp[sum]) ? sum+1 : 0;
+            sum = (c == resp[sum] || resp[sum] == 'X') ? sum+1 : 0;
             if(sum == len)break;
         }
         timerEnd = millis();

Sim800.h

@@ -3,7 +3,7 @@
  * A library for SeeedStudio seeeduino GPRS shield
  *
  * Original work Copyright (c) 2013 seeed technology inc. [lawliet zou]
- * Modified work Copyright 2016 Antonio Carrasco
+ * Modified work Copyright 2018 Antonio Carrasco
  *
  * The MIT License (MIT)
  *
@@ -34,7 +34,6 @@
 
 #define TRUE                    1
 #define FALSE                   0
-
 #define DEFAULT_TIMEOUT         5000
 
 
@@ -95,7 +94,9 @@ class SIM800
     void sendEndMark(void);
 
     /** check SIM800 module response before time out
-     *  @param  *resp   correct response which SIM800 module will return
+     *  @param  *resp   correct response which SIM800 module will return. A 'X' char
+     *  can be used to allow any char matching character, example:
+     *  '200' and '201' matches with '20X'
      *  @param  *timeout    waiting seconds till timeout
      *  @returns
      *      TRUE on success