Stores seed language in wallet file. added rapidjson. Yet to test backward compatibility

1 files changed, 290 insertions, 0 deletions

diff --git a/src/common/rapidjson/encodedstream.h b/src/common/rapidjson/encodedstream.h
new file mode 100644
index 000000000..9dc00c7af
--- /dev/null
+++ b/src/common/rapidjson/encodedstream.h
@@ -0,0 +1,290 @@
+// Copyright (C) 2011 Milo Yip

+//

+// Permission is hereby granted, free of charge, to any person obtaining a copy

+// of this software and associated documentation files (the "Software"), to deal

+// in the Software without restriction, including without limitation the rights

+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

+// copies of the Software, and to permit persons to whom the Software is

+// furnished to do so, subject to the following conditions:

+//

+// The above copyright notice and this permission notice shall be included in

+// all copies or substantial portions of the Software.

+//

+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

+// THE SOFTWARE.

+

+#ifndef RAPIDJSON_ENCODEDSTREAM_H_

+#define RAPIDJSON_ENCODEDSTREAM_H_

+

+#include "rapidjson.h"

+

+#ifdef __GNUC__

+RAPIDJSON_DIAG_PUSH

+RAPIDJSON_DIAG_OFF(effc++)

+#endif

+

+namespace rapidjson {

+

+//! Input byte stream wrapper with a statically bound encoding.

+/*!

+    \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.

+    \tparam InputByteStream Type of input byte stream. For example, FileReadStream.

+*/

+template <typename Encoding, typename InputByteStream>

+class EncodedInputStream {

+    RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);

+public:

+    typedef typename Encoding::Ch Ch;

+

+    EncodedInputStream(InputByteStream& is) : is_(is) { 

+        current_ = Encoding::TakeBOM(is_);

+    }

+

+    Ch Peek() const { return current_; }

+    Ch Take() { Ch c = current_; current_ = Encoding::Take(is_); return c; }

+    size_t Tell() const { return is_.Tell(); }

+

+    // Not implemented

+    void Put(Ch) { RAPIDJSON_ASSERT(false); }

+    void Flush() { RAPIDJSON_ASSERT(false); } 

+    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }

+    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }

+

+private:

+    EncodedInputStream(const EncodedInputStream&);

+    EncodedInputStream& operator=(const EncodedInputStream&);

+

+    InputByteStream& is_;

+    Ch current_;

+};

+

+//! Output byte stream wrapper with statically bound encoding.

+/*!

+    \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.

+    \tparam InputByteStream Type of input byte stream. For example, FileWriteStream.

+*/

+template <typename Encoding, typename OutputByteStream>

+class EncodedOutputStream {

+    RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);

+public:

+    typedef typename Encoding::Ch Ch;

+

+    EncodedOutputStream(OutputByteStream& os, bool putBOM = true) : os_(os) { 

+        if (putBOM)

+            Encoding::PutBOM(os_);

+    }

+

+    void Put(Ch c) { Encoding::Put(os_, c);  }

+    void Flush() { os_.Flush(); }

+

+    // Not implemented

+    Ch Peek() const { RAPIDJSON_ASSERT(false); }

+    Ch Take() { RAPIDJSON_ASSERT(false);  }

+    size_t Tell() const { RAPIDJSON_ASSERT(false);  return 0; }

+    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }

+    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }

+

+private:

+    EncodedOutputStream(const EncodedOutputStream&);

+    EncodedOutputStream& operator=(const EncodedOutputStream&);

+

+    OutputByteStream& os_;

+};

+

+#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x

+

+//! Input stream wrapper with dynamically bound encoding and automatic encoding detection.

+/*!

+    \tparam CharType Type of character for reading.

+    \tparam InputByteStream type of input byte stream to be wrapped.

+*/

+template <typename CharType, typename InputByteStream>

+class AutoUTFInputStream {

+    RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);

+public:

+    typedef CharType Ch;

+

+    //! Constructor.

+    /*!

+        \param is input stream to be wrapped.

+        \param type UTF encoding type if it is not detected from the stream.

+    */

+    AutoUTFInputStream(InputByteStream& is, UTFType type = kUTF8) : is_(&is), type_(type), hasBOM_(false) {

+        DetectType();

+        static const TakeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Take) };

+        takeFunc_ = f[type_];

+        current_ = takeFunc_(*is_);

+    }

+

+    UTFType GetType() const { return type_; }

+    bool HasBOM() const { return hasBOM_; }

+

+    Ch Peek() const { return current_; }

+    Ch Take() { Ch c = current_; current_ = takeFunc_(*is_); return c; }

+    size_t Tell() const { return is_->Tell(); }

+

+    // Not implemented

+    void Put(Ch) { RAPIDJSON_ASSERT(false); }

+    void Flush() { RAPIDJSON_ASSERT(false); } 

+    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }

+    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }

+

+private:

+    AutoUTFInputStream(const AutoUTFInputStream&);

+    AutoUTFInputStream& operator=(const AutoUTFInputStream&);

+

+    // Detect encoding type with BOM or RFC 4627

+    void DetectType() {

+        // BOM (Byte Order Mark):

+        // 00 00 FE FF  UTF-32BE

+        // FF FE 00 00  UTF-32LE

+        // FE FF        UTF-16BE

+        // FF FE        UTF-16LE

+        // EF BB BF     UTF-8

+

+        const unsigned char* c = (const unsigned char *)is_->Peek4();

+        if (!c)

+            return;

+

+        unsigned bom = c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24);

+        hasBOM_ = false;

+        if (bom == 0xFFFE0000)                  { type_ = kUTF32BE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }

+        else if (bom == 0x0000FEFF)             { type_ = kUTF32LE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }

+        else if ((bom & 0xFFFF) == 0xFFFE)      { type_ = kUTF16BE; hasBOM_ = true; is_->Take(); is_->Take();                           }

+        else if ((bom & 0xFFFF) == 0xFEFF)      { type_ = kUTF16LE; hasBOM_ = true; is_->Take(); is_->Take();                           }

+        else if ((bom & 0xFFFFFF) == 0xBFBBEF)  { type_ = kUTF8;    hasBOM_ = true; is_->Take(); is_->Take(); is_->Take();              }

+

+        // RFC 4627: Section 3

+        // "Since the first two characters of a JSON text will always be ASCII

+        // characters [RFC0020], it is possible to determine whether an octet

+        // stream is UTF-8, UTF-16 (BE or LE), or UTF-32 (BE or LE) by looking

+        // at the pattern of nulls in the first four octets."

+        // 00 00 00 xx  UTF-32BE

+        // 00 xx 00 xx  UTF-16BE

+        // xx 00 00 00  UTF-32LE

+        // xx 00 xx 00  UTF-16LE

+        // xx xx xx xx  UTF-8

+

+        if (!hasBOM_) {

+            unsigned pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);

+            switch (pattern) {

+            case 0x08: type_ = kUTF32BE; break;

+            case 0x0A: type_ = kUTF16BE; break;

+            case 0x01: type_ = kUTF32LE; break;

+            case 0x05: type_ = kUTF16LE; break;

+            case 0x0F: type_ = kUTF8;    break;

+            default: break; // Use type defined by user.

+            }

+        }

+

+        // Runtime check whether the size of character type is sufficient. It only perform checks with assertion.

+        switch (type_) {

+        case kUTF8:

+            // Do nothing

+            break;

+        case kUTF16LE:

+        case kUTF16BE:

+            RAPIDJSON_ASSERT(sizeof(Ch) >= 2);

+            break;

+        case kUTF32LE:

+        case kUTF32BE:

+            RAPIDJSON_ASSERT(sizeof(Ch) >= 4);

+            break;

+        default:

+            RAPIDJSON_ASSERT(false);    // Invalid type

+        }

+    }

+

+    typedef Ch (*TakeFunc)(InputByteStream& is);

+    InputByteStream* is_;

+    UTFType type_;

+    Ch current_;

+    TakeFunc takeFunc_;

+    bool hasBOM_;

+};

+

+//! Output stream wrapper with dynamically bound encoding and automatic encoding detection.

+/*!

+    \tparam CharType Type of character for writing.

+    \tparam InputByteStream type of output byte stream to be wrapped.

+*/

+template <typename CharType, typename OutputByteStream>

+class AutoUTFOutputStream {

+    RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);

+public:

+    typedef CharType Ch;

+

+    //! Constructor.

+    /*!

+        \param os output stream to be wrapped.

+        \param type UTF encoding type.

+        \param putBOM Whether to write BOM at the beginning of the stream.

+    */

+    AutoUTFOutputStream(OutputByteStream& os, UTFType type, bool putBOM) : os_(&os), type_(type) {

+        // RUntime check whether the size of character type is sufficient. It only perform checks with assertion.

+        switch (type_) {

+        case kUTF16LE:

+        case kUTF16BE:

+            RAPIDJSON_ASSERT(sizeof(Ch) >= 2);

+            break;

+        case kUTF32LE:

+        case kUTF32BE:

+            RAPIDJSON_ASSERT(sizeof(Ch) >= 4);

+            break;

+        case kUTF8:

+            // Do nothing

+            break;

+        default:

+            RAPIDJSON_ASSERT(false);    // Invalid UTFType

+        }

+

+        static const PutFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Put) };

+        putFunc_ = f[type_];

+

+        if (putBOM)

+            PutBOM();

+    }

+

+    UTFType GetType() const { return type_; }

+

+    void Put(Ch c) { putFunc_(*os_, c); }

+    void Flush() { os_->Flush(); } 

+

+    // Not implemented

+    Ch Peek() const { RAPIDJSON_ASSERT(false); }

+    Ch Take() { RAPIDJSON_ASSERT(false); }

+    size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }

+    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }

+    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }

+

+private:

+    AutoUTFOutputStream(const AutoUTFOutputStream&);

+    AutoUTFOutputStream& operator=(const AutoUTFOutputStream&);

+

+    void PutBOM() { 

+        typedef void (*PutBOMFunc)(OutputByteStream&);

+        static const PutBOMFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(PutBOM) };

+        f[type_](*os_);

+    }

+

+    typedef void (*PutFunc)(OutputByteStream&, Ch);

+

+    OutputByteStream* os_;

+    UTFType type_;

+    PutFunc putFunc_;

+};

+

+#undef RAPIDJSON_ENCODINGS_FUNC

+

+} // namespace rapidjson

+

+#ifdef __GNUC__

+RAPIDJSON_DIAG_POP

+#endif

+

+#endif // RAPIDJSON_FILESTREAM_H_