added b64 encode/decode to MString.

Base64.cpp

@@ -12,9 +12,12 @@ namespace coreutils {
       return (isalnum(c) || (c == '+') || (c == '/'));
    }
    
-   std::string Base64::encode(unsigned char const* bytes_to_encode, unsigned int in_len) {
-      
-      std::string ret;
+   MString Base64::encode(ZString data) {
+
+      data.push();
+      data.reset();
+      MString ret;
+      int in_len = data.getLength();
       int i = 0;
       int j = 0;
       unsigned char char_array_3[3];
@@ -22,7 +25,7 @@ namespace coreutils {
       
       while (in_len--) {
 	 
-	 char_array_3[i++] = *(bytes_to_encode++);
+	 char_array_3[i++] = data.nextChar();
 	 if (i == 3) {
 	    
 	    char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
@@ -31,10 +34,9 @@ namespace coreutils {
 	    char_array_4[3] = char_array_3[2] & 0x3f;
 	    
 	    for(i = 0; (i <4) ; i++)
-	      ret += base64_chars[char_array_4[i]];
+	      ret.write(base64_chars[char_array_4[i]]);
 	    i = 0;
-	 }
-	 
+	 }	 
       }
       
       if (i) {
@@ -47,29 +49,28 @@ namespace coreutils {
 	 char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
 	 
 	 for (j = 0; (j < i + 1); j++)
-	   ret += base64_chars[char_array_4[j]];
+	   ret.write(base64_chars[char_array_4[j]]);
 	 
 	 while((i++ < 3))
-	   ret += '=';
-	 
+	   ret.write('=');	 
       }
-      
-      
+      data.pop();
       return ret;
    }
    
-   std::string Base64::decode(std::string const& encoded_string) {
-      
-      int in_len = encoded_string.size();
+   MString Base64::decode(ZString b64data) {
+
+      b64data.push();
+      b64data.reset();
+      int in_len = b64data.getLength();
       int i = 0;
       int j = 0;
-      int in_ = 0;
       unsigned char char_array_4[4], char_array_3[3];
-      std::string ret;
+      MString ret;
       
-      while (in_len-- && ( encoded_string[in_] != '=') && isBase64(encoded_string[in_])) {
+      while (in_len-- && (b64data.getChar() != '=') && isBase64(b64data.getChar())) {
 	 
-	 char_array_4[i++] = encoded_string[in_]; in_++;
+	 char_array_4[i++] = b64data.nextChar();
 	 if (i ==4) {
 	    
 	    for (i = 0; i <4; i++)
@@ -80,7 +81,7 @@ namespace coreutils {
 	    char_array_3[2] = ((char_array_4[2] & 0x3) << 6) +   char_array_4[3];
 	    
 	    for (i = 0; (i < 3); i++)
-	      ret += char_array_3[i];
+	      ret.write(char_array_3[i]);
 	    i = 0;
 	 }
 	 
@@ -94,9 +95,10 @@ namespace coreutils {
 	 char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
 	 char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
 	 
-	 for (j = 0; (j < i - 1); j++) ret += char_array_3[j];
+	 for (j = 0; (j < i - 1); j++)
+	   ret.write(char_array_3[j]);
       }
-         
+      b64data.pop();
       return ret;
    }
    

Base64.h

@@ -1,20 +1,22 @@
 #ifndef __Base64_h__
 #define __Base64_h__
 
-#include <string>
+#include "ZString.h"
+#include "MString.h"
 
 namespace coreutils {
 
    ///
-   ///
+   /// Use the Base64 object when you need to translate character string
+   /// to/from base64 encoded strings.
    ///
    
    class Base64 {
    
     public:
       bool isBase64(unsigned char c);
-      std::string encode(unsigned char const* bytes_to_encode, unsigned int in_len);	  	   
-      std::string decode(std::string const& encoded_string);
+      MString encode(ZString data);	  	   
+      MString decode(ZString b64data);
          
    };
    

MString.cpp

@@ -2,6 +2,7 @@
 #include "Log.h"
 #include "uuid/uuid.h"
 #include "Exception.h"
+#include "Base64.h"
 #include <cstring>
 #include <string>
 #include <format>
@@ -365,21 +366,21 @@ namespace coreutils {
    }
       
    MString MString::toBase64() {
-      MString target;
-      return target;
+      Base64 b64;
+      return b64.encode(*this);
    }
    
    
    MString MString::fromBase64() {
-      MString target;
-      return target;
+      Base64 b64;
+      return b64.decode(*this);
    }
    
    
    MString MString::toUpper() {
       MString target;
       for(int ix = 0; ix < length; ++ix)
-	write(std::toupper(data[ix]));      
+	target.write(std::toupper(data[ix]));      
       return target;
    }
    
@@ -387,7 +388,7 @@ namespace coreutils {
    MString MString::toLower() {
       MString target;
       for(int ix = 0; ix < length; ++ix)
-	write(std::tolower(data[ix]));      
+	target.write(std::tolower(data[ix]));      
       return target;
    }
    

ZString.cpp

@@ -614,7 +614,11 @@ namespace coreutils {
       }
       return *this;
    }
-   
+
+   char ZString::getChar() {
+      return *cursor;
+   }
+      
    char ZString::nextChar() {
       char temp = 0;
       if(!eod()) 

ZString.h

@@ -434,6 +434,12 @@ namespace coreutils {
       
       bool trimCRLF();
 
+      ///
+      /// Returns the character at the cursor and returns. Cursor is not changed.
+      ///
+
+      char getChar();
+      
       ///
       /// Returns the character at the cursor and advances the cursor one
       /// position until end of data.

testing/compile

@@ -1,4 +1,4 @@
 #!/bin/bash
 g++ -g -std=c++20 -o zstring_test zstring_test.cpp -I.. -L.. -lCoreUtils
-g++ -g -std=c++20 -o mstring_test mstring_test.cpp -I.. -L.. -lCoreUtils
+g++ -g -std=c++20 -o mstring_test mstring_test.cpp -I.. -L.. -lCoreUtils -lb64
 g++ -o jstring_test jstring_test.cpp -I.. -L.. -lCoreUtils

testing/mstring_test.cpp

@@ -95,8 +95,19 @@ int main(int argc, char **argv) {
    test28 = test29;
    std::cout << "int: " << test28 << std::endl;
 
-   coreutils::MString test30 = "ABCDEF";
+   coreutils::MString test30 = "ABCDEF0123";
    std::cout << test30 << " to hex " << test30.toHex() << " from hex " << test30.toHex().fromHex() << std::endl;
+
+   std::cout << test30 << " to lower " << test30.toLower() << std::endl;
+
+   coreutils::MString test31 = "abcdef0123";
+   std::cout << test31 << " to upper " << test31.toUpper() << std::endl;
+
+   coreutils::MString test32 = "This is a test of converting this string to base64";
+   std::cout << test32 << " to base64 " << test32.toBase64() << std::endl;
+
+   coreutils::MString test33 = test32.toBase64();
+   std::cout << test33 << " from base64 " << test33.fromBase64() << std::endl;   
    
    return 0;
 }