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