bool nsEudoraEditor::GetEmbeddedImageCID(PRUint32 aCIDHash, const nsAString & aOldRef, nsString &aCID)
{
bool foundMatch = false;
PRInt32 startImageTag = 0;
PRInt32 closeImageTag = 0;
while ( (startImageTag = m_body.Find("<img", true, closeImageTag)) != kNotFound )
{
closeImageTag = m_body.Find(">", false, startImageTag);
// We should always find a close tag, bail if we don't
if (closeImageTag == kNotFound)
break;
// Find the source attribute and make sure it's for our image tag
PRInt32 startSrcValue = m_body.Find("src", true, startImageTag);
if ( (startSrcValue == kNotFound) || (startSrcValue > closeImageTag) )
continue;
// Move past the src
startSrcValue += 3;
// Move past any whitespace
while ( isspace(m_body.CharAt(startSrcValue)) )
++startSrcValue;
// We should find an = now
if (m_body.CharAt(startSrcValue) != '=')
continue;
// Move past =
++startSrcValue;
// Move past any whitespace
while ( isspace(m_body.CharAt(startSrcValue)) )
++startSrcValue;
// Get the quote char and verify that it's valid
char quoteChar = static_cast <char> (m_body.CharAt(startSrcValue));
if ( (quoteChar != '"') && (quoteChar != '\'') )
continue;
// Move past the quote
++startSrcValue;
PRInt32 endSrcValue = m_body.FindChar(quoteChar, startSrcValue);
PRInt32 srcLength = endSrcValue - startSrcValue;
nsString srcValue;
aCID.Assign(Substring(m_body, startSrcValue, srcLength));
if (aCIDHash != 0)
{
// Verify source value starts with "cid:"
if (!StringBeginsWith(aCID, NS_LITERAL_STRING("cid:"), nsCaseInsensitiveStringComparator()))
continue;
// Remove "cid:" from the start
aCID.Cut(0, 4);
PRUint32 hashValue = EudoraHashString( NS_LossyConvertUTF16toASCII(aCID).get() );
foundMatch = (hashValue == aCIDHash);
}
else
{
foundMatch = aCID.Equals(aOldRef);
}
}
return foundMatch;
}
bool nsEudoraEditor::UpdateEmbeddedImageReference(PRUint32 aCIDHash, const nsAString & aOldRef, const nsAString & aUpdatedRef)
{
bool foundMatch = false;
PRInt32 startImageTag = 0;
PRInt32 closeImageTag = 0;
while ( (startImageTag = m_body.Find("<img", PR_TRUE, closeImageTag)) != kNotFound )
{
closeImageTag = m_body.Find(">", PR_FALSE, startImageTag);
// We should always find a close tag, bail if we don't
if (closeImageTag == kNotFound)
break;
// Find the source attribute and make sure it's for our image tag
PRInt32 startSrcValue = m_body.Find("src", PR_TRUE, startImageTag);
if ( (startSrcValue == kNotFound) || (startSrcValue > closeImageTag) )
continue;
// Move past the src
startSrcValue += 3;
// Move past any whitespace
while ( isspace(m_body.CharAt(startSrcValue)) )
++startSrcValue;
// We should find an = now
if (m_body.CharAt(startSrcValue) != '=')
continue;
// Move past =
++startSrcValue;
// Move past any whitespace
while ( isspace(m_body.CharAt(startSrcValue)) )
++startSrcValue;
// Get the quote char and verify that it's valid
char quoteChar = static_cast <char> (m_body.CharAt(startSrcValue));
if ( (quoteChar != '"') && (quoteChar != '\'') )
continue;
// Move past the quote
++startSrcValue;
PRInt32 endSrcValue = m_body.Find(nsCString(quoteChar), PR_FALSE, startSrcValue);
PRInt32 srcLength = endSrcValue - startSrcValue;
nsString srcValue;
m_body.Mid(srcValue, startSrcValue, srcLength);
if (aCIDHash != 0)
{
// Verify source value starts with "cid:"
if ( !srcValue.EqualsIgnoreCase("cid:", 4) )
continue;
// Remove "cid:" from the start
srcValue.Cut(0, 4);
PRUint32 hashValue = EudoraHashString( NS_LossyConvertUTF16toASCII(srcValue).get() );
foundMatch = (hashValue == aCIDHash);
}
else
{
foundMatch = srcValue.Equals(aOldRef);
}
if (foundMatch)
{
m_body.Replace(startSrcValue, srcLength, aUpdatedRef);
break;
}
}
return foundMatch;
}