| -rw-r--r-- | libopie2/opiecore/oglobal.cpp | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/libopie2/opiecore/oglobal.cpp b/libopie2/opiecore/oglobal.cpp index 3390ec0..352151b 100644 --- a/libopie2/opiecore/oglobal.cpp +++ b/libopie2/opiecore/oglobal.cpp @@ -1,7 +1,8 @@ /* This file is part of the Opie Project Copyright (C) 2003 Michael 'Mickey' Lauer <mickey@Vanille.de> + Copyright (C) 2004 Holger 'zecke' Freyther <zecke@handhelds.org> =. .=l. .>+-= _;:, .> :=|. This program is free software; you can @@ -28,8 +29,44 @@ */ #include <opie2/oglobal.h> +#include <qfile.h> +#include <qtextstream.h> + +static const char Base64EncMap[64] = +{ + 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, + 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, + 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, + 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, + 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, + 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, + 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F +}; + +static char Base64DecMap[128] = +{ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x3F, + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, + 0x3C, 0x3D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, + 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, + 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, + 0x17, 0x18, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, + 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, + 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, + 0x31, 0x32, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00 +}; + + OConfig* OGlobal::_config = 0; OConfig* OGlobal::config() { @@ -40,4 +77,229 @@ OConfig* OGlobal::config() OGlobal::_config = new OConfig( "global" ); } return OGlobal::_config; } + + +/** + * Return the internal builtin Global::Command object + * + */ +Global::Command* OGlobal::builtinCommands() { + return builtin; +} + + +/** + * Return the internal builtin QGuardedPtr<QWidget> object + */ +QGuardedPtr<QWidget>* OGlobal::builtinRunning() { + return running; +} + + +/** + * \brief generate a new UUID as QString + * Return a new UUID as QString. UUID are global unique + * + * + * @return the UUID or QString::null + */ +QString OGlobal::generateUuid() { + QFile file( "/proc/sys/kernel/random/uuid" ); + if (!file.open(IO_ReadOnly ) ) + return QString::null; + + QTextStream stream(&file); + + return "{" + stream.read().stripWhiteSpace() + "}"; +} + + +/** + * \brief Encode a QByteArray in base64 + * + * An Implementation of the RF1521 base64 encoding. + * + * The boolean argument determines if the encoded data is + * going to be restricted to 76 characters or less per line + * as specified by RFC 2045. If @p insertLFs is true, then + * there will be 76 characters or less per line. + * + * If you use this to create a QCString remember that it is null terminated! + * \code + * QByteArray ar = OGlobal::encodeBase64(&array); + * QCString str(ar.data(),ar.size()+1); // the NUL at the end + * + * \endcode + * + * @param in The QByteArray to encode + * @param insertLFs Limit number of characters per line + * @return The argument as base64 encoded or QByteArray() if in.isEmpty() + * @see QByteArray + * @see QArray + * @see QMemArray + * @see QCString + */ +/* + * LGPL by Rik Hemsely of the KDE Project. taken from kmdcodec.cpp + */ +QByteArray OGlobal::encodeBase64(const QByteArray& in, bool insertLFs ) { + if ( in.isEmpty() ) + return QByteArray(); + + unsigned int sidx = 0; + unsigned int didx = 0; + const char* data = in.data(); + const unsigned int len = in.size(); + + unsigned int out_len = ((len+2)/3)*4; + + // Deal with the 76 characters or less per + // line limit specified in RFC 2045 on a + // pre request basis. + insertLFs = (insertLFs && out_len > 76); + if ( insertLFs ) + out_len += ((out_len-1)/76); + + int count = 0; + QByteArray out( out_len ); + + // 3-byte to 4-byte conversion + 0-63 to ascii printable conversion + if ( len > 1 ) + { + while (sidx < len-2) + { + if ( insertLFs ) + { + if ( count && (count%76) == 0 ) + out[didx++] = '\n'; + count += 4; + } + out[didx++] = Base64EncMap[(data[sidx] >> 2) & 077]; + out[didx++] = Base64EncMap[(data[sidx+1] >> 4) & 017 | + (data[sidx] << 4) & 077]; + out[didx++] = Base64EncMap[(data[sidx+2] >> 6) & 003 | + (data[sidx+1] << 2) & 077]; + out[didx++] = Base64EncMap[data[sidx+2] & 077]; + sidx += 3; + } + } + + if (sidx < len) + { + if ( insertLFs && (count > 0) && (count%76) == 0 ) + out[didx++] = '\n'; + + out[didx++] = Base64EncMap[(data[sidx] >> 2) & 077]; + if (sidx < len-1) + { + out[didx++] = Base64EncMap[(data[sidx+1] >> 4) & 017 | + (data[sidx] << 4) & 077]; + out[didx++] = Base64EncMap[(data[sidx+1] << 2) & 077]; + } + else + { + out[didx++] = Base64EncMap[(data[sidx] << 4) & 077]; + } + } + + // Add padding + while (didx < out.size()) + { + out[didx] = '='; + didx++; + } + + return out; +} + +/** + * Decodes the given data that was encoded with the base64 + * algorithm. + * + * + * @param in the encoded data to be decoded. + * @return the decoded QByteArray or QByteArray() in case of failure + * @see OGlobal::encodeBase64 + */ +QByteArray OGlobal::decodeBase64( const QByteArray& in) { + if ( in.isEmpty() ) + return QByteArray(); + + QByteArray out; + unsigned int count = 0; + unsigned int len = in.size(), tail = len; + const char* data = in.data(); + + // Deal with possible *nix "BEGIN" marker!! + while ( count < len && (data[count] == '\n' || data[count] == '\r' || + data[count] == '\t' || data[count] == ' ') ) + count++; + + if ( strncasecmp(data+count, "begin", 5) == 0 ) + { + count += 5; + while ( count < len && data[count] != '\n' && data[count] != '\r' ) + count++; + + while ( count < len && (data[count] == '\n' || data[count] == '\r') ) + count ++; + + data += count; + tail = (len -= count); + } + + // Find the tail end of the actual encoded data even if + // there is/are trailing CR and/or LF. + while ( data[tail-1] == '=' || data[tail-1] == '\n' || + data[tail-1] == '\r' ) + if ( data[--tail] != '=' ) len = tail; + + unsigned int outIdx = 0; + out.resize( (count=len) ); + for (unsigned int idx = 0; idx < count; idx++) + { + // Adhere to RFC 2045 and ignore characters + // that are not part of the encoding table. + unsigned char ch = data[idx]; + if ( (ch > 47 && ch < 58) || (ch > 64 && ch < 91 ) || + (ch > 96 && ch < 123)|| ch == '+' || ch == '/' || ch == '=') + { + out[outIdx++] = Base64DecMap[ch]; + } + else + { + len--; + tail--; + } + } + + // kdDebug() << "Tail size = " << tail << ", Length size = " << len << endl; + + // 4-byte to 3-byte conversion + len = (tail>(len/4)) ? tail-(len/4) : 0; + unsigned int sidx = 0, didx = 0; + if ( len > 1 ) + { + while (didx < len-2) + { + out[didx] = (((out[sidx] << 2) & 255) | ((out[sidx+1] >> 4) & 003)); + out[didx+1] = (((out[sidx+1] << 4) & 255) | ((out[sidx+2] >> 2) & 017)); + out[didx+2] = (((out[sidx+2] << 6) & 255) | (out[sidx+3] & 077)); + sidx += 4; + didx += 3; + } + } + + if (didx < len) + out[didx] = (((out[sidx] << 2) & 255) | ((out[sidx+1] >> 4) & 003)); + + if (++didx < len ) + out[didx] = (((out[sidx+1] << 4) & 255) | ((out[sidx+2] >> 2) & 017)); + + // Resize the output buffer + if ( len == 0 || len < out.size() ) + out.resize(len); + + return out; +} |