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Diffstat (limited to 'src/messageId.cpp')
| -rw-r--r-- | src/messageId.cpp | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/messageId.cpp b/src/messageId.cpp new file mode 100644 index 00000000..1ea99d1f --- /dev/null +++ b/src/messageId.cpp @@ -0,0 +1,184 @@ +// +// VMime library (http://vmime.sourceforge.net) +// Copyright (C) 2002-2004 Vincent Richard <[email protected]> +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation; either version 2 of +// the License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +// + +#include "messageId.hpp" +#include "utility/random.hpp" +#include "platformDependant.hpp" +#include "parserHelpers.hpp" + + +namespace vmime +{ + + +messageId::messageId() +{ +} + + +messageId::messageId(const string& id) +{ + parse(id); +} + + +messageId::messageId(const messageId& mid) + : component(), m_left(mid.m_left), m_right(mid.m_right) +{ +} + + +messageId::messageId(const string& left, const string& right) + : m_left(left), m_right(right) +{ +} + + +/* + RFC-2822: + 3.6.4. Identification fields + + msg-id = [CFWS] "<" id-left "@" id-right ">" [CFWS] +*/ + +void messageId::parse(const string& buffer, const string::size_type position, + const string::size_type end, string::size_type* newPosition) +{ + const string::value_type* const pend = buffer.data() + end; + const string::value_type* const pstart = buffer.data() + position; + const string::value_type* p = pstart; + + m_left.clear(); + m_right.clear(); + + unsigned int commentLevel = 0; + bool escape = false; + bool stop = false; + + for ( ; !stop && p < pend ; ++p) + { + if (escape) + { + // Ignore this character + } + else + { + switch (*p) + { + case '(': ++commentLevel; break; + case ')': --commentLevel; break; + case '\\': escape = true; break; + case '<': + { + if (commentLevel == 0) + { + stop = true; + break; + } + } + + } + } + } + + if (p < pend) + { + // Extract left part + const string::size_type leftStart = position + (p - pstart); + + while (p < pend && *p != '@') ++p; + + m_left = string(buffer.begin() + leftStart, + buffer.begin() + position + (p - pstart)); + + if (p < pend) + { + // Skip '@' + ++p; + + // Extract right part + const string::size_type rightStart = position + (p - pstart); + + while (p < pend && *p != '>') ++p; + + m_right = string(buffer.begin() + rightStart, + buffer.begin() + position + (p - pstart)); + } + } + + if (newPosition) + *newPosition = end; +} + + +const string messageId::id() const +{ + return (m_left + '@' + m_right); +} + + +void messageId::generate(utility::outputStream& os, const string::size_type /* maxLineLength */, + const string::size_type curLinePos, string::size_type* newLinePos) const +{ + os << '<' << m_left << '@' << m_right << '>'; + + if (newLinePos) + *newLinePos = curLinePos + m_left.length() + m_right.length() + 3; +} + + +messageId& messageId::operator=(const messageId& source) +{ + m_left = source.m_left; + m_right = source.m_right; + return (*this); +} + + +messageId& messageId::operator=(const string& id) +{ + parse(id); + return (*this); +} + + +messageId messageId::generateId() +{ + std::ostringstream left; + + left << "vmime"; + left << '.'; + left << std::hex << utility::random::time(); + left << '.'; + left << std::hex << utility::random::process(); + left << '.'; + left << std::hex << utility::random::next(); + left << std::hex << utility::random::next(); + + return (messageId(left.str(), platformDependant::getHandler()->getHostName())); +} + + +const bool messageId::operator==(const messageId& mid) const +{ + return (m_left == mid.m_left && m_right == mid.m_right); +} + + +} // vmime |