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//=============================================================================
// File: param.cpp
// Contents: Definitions for DwParameter
// Maintainer: Doug Sauder <dwsauder@fwb.gulf.net>
// WWW: http://www.fwb.gulf.net/~dwsauder/mimepp.html
//
// Copyright (c) 1996, 1997 Douglas W. Sauder
// All rights reserved.
//
// IN NO EVENT SHALL DOUGLAS W. SAUDER BE LIABLE TO ANY PARTY FOR DIRECT,
// INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
// THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF DOUGLAS W. SAUDER
// HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// DOUGLAS W. SAUDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT
// NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
// BASIS, AND DOUGLAS W. SAUDER HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
// SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
//
//=============================================================================
#define DW_IMPLEMENTATION
#include <mimelib/config.h>
#include <mimelib/debug.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <mimelib/string.h>
#include <mimelib/param.h>
#include <mimelib/token.h>
const char* const DwParameter::sClassName = "DwParameter";
DwParameter* (*DwParameter::sNewParameter)(const DwString&,
DwMessageComponent*) = 0;
DwParameter* DwParameter::NewParameter(const DwString& aStr,
DwMessageComponent* aParent)
{
if (sNewParameter) {
return sNewParameter(aStr, aParent);
}
else {
return new DwParameter(aStr, aParent);
}
}
DwParameter::DwParameter()
{
mNext = 0;
mClassId = kCidParameter;
mClassName = sClassName;
}
DwParameter::DwParameter(const DwParameter& aParam)
: DwMessageComponent(aParam),
mAttribute(aParam.mAttribute),
mValue(aParam.mValue),
mForceNoQuotes(aParam.mForceNoQuotes)
{
mNext = 0;
mClassId = kCidParameter;
mClassName = sClassName;
}
DwParameter::DwParameter(const DwString& aStr, DwMessageComponent* aParent)
: DwMessageComponent(aStr, aParent)
{
mNext = 0;
mClassId = kCidParameter;
mClassName = sClassName;
mForceNoQuotes = false;
}
DwParameter::~DwParameter()
{
}
const DwParameter& DwParameter::operator = (const DwParameter& aParam)
{
if (this == &aParam) return *this;
DwMessageComponent::operator = (aParam);
mAttribute = aParam.mAttribute;
mValue = aParam.mValue;
mForceNoQuotes = aParam.mForceNoQuotes;
mNext = 0;
return *this;
}
const DwString& DwParameter::Attribute() const
{
return mAttribute;
}
void DwParameter::SetAttribute(const DwString& aAttribute)
{
mAttribute = aAttribute;
SetModified();
}
const DwString& DwParameter::Value() const
{
return mValue;
}
void DwParameter::SetValue(const DwString& aValue, bool forceNoQuote)
{
mValue = aValue;
mForceNoQuotes = forceNoQuote;
SetModified();
}
DwParameter* DwParameter::Next() const
{
return mNext;
}
void DwParameter::SetNext(DwParameter* aParam)
{
mNext = aParam;
}
void DwParameter::Parse()
{
mIsModified = 0;
mAttribute = mValue = "";
if (mString.length() == 0) return;
DwRfc1521Tokenizer tokenizer(mString);
// Get attribute
int found = 0;
while (!found && tokenizer.Type() != eTkNull) {
if (tokenizer.Type() == eTkToken) {
mAttribute = tokenizer.Token();
found = 1;
}
++tokenizer;
}
// Get '='
found = 0;
while (!found && tokenizer.Type() != eTkNull) {
if (tokenizer.Type() == eTkTspecial
&& tokenizer.Token()[0] == '=') {
found = 1;
}
++tokenizer;
}
// Get value
found = 0;
while (!found && tokenizer.Type() != eTkNull) {
if (tokenizer.Type() == eTkToken) {
mValue = tokenizer.Token();
found = 1;
}
else if (tokenizer.Type() == eTkQuotedString) {
tokenizer.StripDelimiters();
mValue = tokenizer.Token();
found = 1;
}
++tokenizer;
}
// Some nonstandard MIME implementations use single quotes to quote
// the boundary string. This is incorrect, but we will try to detect
// it and work with it.
//
// If the first character and last character of the boundary string
// are single quote, strip them off.
if (DwStrcasecmp(mAttribute, "boundary") == 0) {
size_t len = mValue.length();
if (len > 2 && mValue[0] == '\'' && mValue[len-1] == '\'') {
mValue = mValue.substr(1, len-2);
}
}
}
void DwParameter::Assemble()
{
if (mIsModified == 0) return;
mString = "";
mString += mAttribute;
bool noQuotes = mForceNoQuotes || (DwStrcasecmp(mAttribute, "micalg") == 0);
if( noQuotes )
mString += "=";
else
mString += "=\"";
mString += mValue;
if( !noQuotes )
mString += "\"";
mIsModified = 0;
}
DwMessageComponent* DwParameter::Clone() const
{
return new DwParameter(*this);
}
#if defined (DW_DEBUG_VERSION)
void DwParameter::PrintDebugInfo(std::ostream& aStrm, int /*aDepth*/) const
{
aStrm <<
"--------------- Debug info for DwParameter class ---------------\n";
_PrintDebugInfo(aStrm);
}
#else
void DwParameter::PrintDebugInfo(std::ostream& , int ) const {}
#endif // defined (DW_DEBUG_VERSION)
#if defined (DW_DEBUG_VERSION)
void DwParameter::_PrintDebugInfo(std::ostream& aStrm) const
{
DwMessageComponent::_PrintDebugInfo(aStrm);
aStrm << "Attribute: " << mAttribute << '\n';
aStrm << "Value: " << mValue << '\n';
if (mNext) {
aStrm << "Next parameter: " << mNext->ObjectId() << '\n';
}
else {
aStrm << "Next parameter: " << "(none)\n";
}
}
#else
void DwParameter::_PrintDebugInfo(std::ostream& ) const {}
#endif // defined (DW_DEBUG_VERSION)
void DwParameter::CheckInvariants() const
{
#if defined (DW_DEBUG_VERSION)
DwMessageComponent::CheckInvariants();
mAttribute.CheckInvariants();
mValue.CheckInvariants();
#endif // defined (DW_DEBUG_VERSION)
}
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