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-rw-r--r--core/fxcrt/xml/cfx_saxreader.cpp416
-rw-r--r--core/fxcrt/xml/cfx_saxreader.h20
-rw-r--r--core/fxcrt/xml/cfx_saxreader_unittest.cpp18
3 files changed, 233 insertions, 221 deletions
diff --git a/core/fxcrt/xml/cfx_saxreader.cpp b/core/fxcrt/xml/cfx_saxreader.cpp
index a7810c9884..13efdccdda 100644
--- a/core/fxcrt/xml/cfx_saxreader.cpp
+++ b/core/fxcrt/xml/cfx_saxreader.cpp
@@ -107,36 +107,25 @@ CFX_SAXReader::CFX_SAXReader()
m_pHandler(nullptr),
m_iState(-1),
m_dwItemID(0),
- m_iDataSize(256),
- m_iNameSize(256),
- m_dwParseMode(0),
- m_pCommentContext(nullptr) {
- m_pszData = FX_Alloc(uint8_t, m_iDataSize);
- m_pszName = FX_Alloc(uint8_t, m_iNameSize);
+ m_dwParseMode(0) {
+ m_Data.reserve(256);
+ m_Name.reserve(256);
}
+
CFX_SAXReader::~CFX_SAXReader() {
Reset();
- if (m_pszData) {
- FX_Free(m_pszData);
- m_pszData = nullptr;
- }
- if (m_pszName) {
- FX_Free(m_pszName);
- m_pszName = nullptr;
- }
}
void CFX_SAXReader::Reset() {
m_File.Reset();
+ m_iState = -1;
m_Stack = std::stack<std::unique_ptr<CFX_SAXItem>>();
m_dwItemID = 0;
m_SkipStack = std::stack<char>();
m_SkipChar = 0;
- m_iDataLength = 0;
- m_iEntityStart = -1;
- m_iNameLength = 0;
- m_iDataPos = 0;
m_pCommentContext.reset();
+ ClearData();
+ ClearName();
}
void CFX_SAXReader::Push() {
@@ -156,38 +145,39 @@ CFX_SAXItem* CFX_SAXReader::GetCurrentItem() const {
return m_Stack.empty() ? nullptr : m_Stack.top().get();
}
-void CFX_SAXReader::AppendData(uint8_t ch) {
- ReallocDataBuffer();
- m_pszData[m_iDataPos++] = ch;
+void CFX_SAXReader::ClearData() {
+ m_Data.clear();
+ m_iEntityStart = -1;
}
-void CFX_SAXReader::AppendName(uint8_t ch) {
- ReallocNameBuffer();
- m_pszName[m_iDataPos++] = ch;
+void CFX_SAXReader::ClearName() {
+ m_Name.clear();
}
-void CFX_SAXReader::ReallocDataBuffer() {
- if (m_iDataPos < m_iDataSize) {
- return;
- }
- if (m_iDataSize <= 1024 * 1024) {
- m_iDataSize *= 2;
- } else {
- m_iDataSize += 1024 * 1024;
- }
- m_pszData = (uint8_t*)FX_Realloc(uint8_t, m_pszData, m_iDataSize);
+void CFX_SAXReader::AppendToData(uint8_t ch) {
+ m_Data.push_back(ch);
}
-void CFX_SAXReader::ReallocNameBuffer() {
- if (m_iDataPos < m_iNameSize) {
- return;
- }
- if (m_iNameSize <= 1024 * 1024) {
- m_iNameSize *= 2;
- } else {
- m_iNameSize += 1024 * 1024;
- }
- m_pszName = (uint8_t*)FX_Realloc(uint8_t, m_pszName, m_iNameSize);
+void CFX_SAXReader::AppendToName(uint8_t ch) {
+ m_Name.push_back(ch);
+}
+
+void CFX_SAXReader::BackUpAndReplaceDataAt(int32_t index, uint8_t ch) {
+ ASSERT(index > -1);
+ m_Data.erase(m_Data.begin() + index, m_Data.end());
+ AppendToData(ch);
+}
+
+int32_t CFX_SAXReader::CurrentDataIndex() const {
+ return pdfium::CollectionSize<int32_t>(m_Data) - 1;
+}
+
+bool CFX_SAXReader::IsEntityStart(uint8_t ch) const {
+ return m_iEntityStart == -1 && ch == '&';
+}
+
+bool CFX_SAXReader::IsEntityEnd(uint8_t ch) const {
+ return m_iEntityStart != -1 && ch == ';';
}
bool CFX_SAXReader::SkipSpace(uint8_t ch) {
@@ -199,7 +189,6 @@ int32_t CFX_SAXReader::StartParse(
uint32_t dwStart,
uint32_t dwLen,
uint32_t dwParseMode) {
- m_iState = -1;
Reset();
if (!m_File.StartFile(pFile, dwStart, dwLen))
return -1;
@@ -293,100 +282,96 @@ void CFX_SAXReader::ParseInternal() {
}
void CFX_SAXReader::ParseChar(uint8_t ch) {
- ReallocDataBuffer();
- m_pszData[m_iDataPos] = ch;
- if (m_iEntityStart > -1 && ch == ';') {
- int32_t iSaveEntityStart = m_iEntityStart;
- CFX_ByteString csEntity(m_pszData + m_iEntityStart + 1,
- m_iDataPos - m_iEntityStart - 1);
- int32_t iLen = csEntity.GetLength();
- if (iLen > 0) {
- if (csEntity[0] == '#') {
- if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_sharp) == 0) {
- ch = 0;
- uint8_t w;
- if (iLen > 1 && csEntity[1] == 'x') {
- for (int32_t i = 2; i < iLen; i++) {
- w = csEntity[i];
- if (w >= '0' && w <= '9') {
- ch = (ch << 4) + w - '0';
- } else if (w >= 'A' && w <= 'F') {
- ch = (ch << 4) + w - 55;
- } else if (w >= 'a' && w <= 'f') {
- ch = (ch << 4) + w - 87;
- } else {
- break;
- }
- }
- } else {
- for (int32_t i = 1; i < iLen; i++) {
- w = csEntity[i];
- if (w < '0' || w > '9') {
- break;
- }
- ch = ch * 10 + w - '0';
- }
- }
- if (ch != 0) {
- m_pszData[m_iEntityStart++] = ch;
- }
+ AppendToData(ch);
+ if (IsEntityStart(ch)) {
+ m_iEntityStart = CurrentDataIndex();
+ return;
+ }
+ if (!IsEntityEnd(ch))
+ return;
+
+ // No matter what, we're no longer in an entity.
+ ASSERT(m_iEntityStart > -1);
+ int32_t iSaveStart = m_iEntityStart;
+ m_iEntityStart = -1;
+
+ // NOTE: Relies on negative lengths being treated as empty strings.
+ CFX_ByteString csEntity(m_Data.data() + iSaveStart + 1,
+ CurrentDataIndex() - iSaveStart - 1);
+ int32_t iLen = csEntity.GetLength();
+ if (iLen == 0)
+ return;
+
+ if (csEntity[0] == '#') {
+ if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_sharp) == 0) {
+ ch = 0;
+ uint8_t w;
+ if (iLen > 1 && csEntity[1] == 'x') {
+ for (int32_t i = 2; i < iLen; i++) {
+ w = csEntity[i];
+ if (w >= '0' && w <= '9')
+ ch = (ch << 4) + w - '0';
+ else if (w >= 'A' && w <= 'F')
+ ch = (ch << 4) + w - 55;
+ else if (w >= 'a' && w <= 'f')
+ ch = (ch << 4) + w - 87;
+ else
+ break;
}
} else {
- if (csEntity.Compare("amp") == 0) {
- if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_amp) == 0) {
- m_pszData[m_iEntityStart++] = '&';
- }
- } else if (csEntity.Compare("lt") == 0) {
- if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_lt) == 0) {
- m_pszData[m_iEntityStart++] = '<';
- }
- } else if (csEntity.Compare("gt") == 0) {
- if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_gt) == 0) {
- m_pszData[m_iEntityStart++] = '>';
- }
- } else if (csEntity.Compare("apos") == 0) {
- if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_apos) == 0) {
- m_pszData[m_iEntityStart++] = '\'';
- }
- } else if (csEntity.Compare("quot") == 0) {
- if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_quot) == 0) {
- m_pszData[m_iEntityStart++] = '\"';
- }
+ for (int32_t i = 1; i < iLen; i++) {
+ w = csEntity[i];
+ if (w < '0' || w > '9')
+ break;
+ ch = ch * 10 + w - '0';
}
}
+ if (ch != 0)
+ BackUpAndReplaceDataAt(iSaveStart, ch);
}
- if (iSaveEntityStart != m_iEntityStart) {
- m_iDataPos = m_iEntityStart;
- m_iEntityStart = -1;
- } else {
- m_iDataPos++;
- m_iEntityStart = -1;
- }
- } else {
- if (m_iEntityStart < 0 && ch == '&') {
- m_iEntityStart = m_iDataPos;
- }
- m_iDataPos++;
+ return;
+ }
+ if (csEntity == "amp") {
+ if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_amp) == 0)
+ BackUpAndReplaceDataAt(iSaveStart, '&');
+ return;
+ }
+ if (csEntity == "lt") {
+ if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_lt) == 0)
+ BackUpAndReplaceDataAt(iSaveStart, '<');
+ return;
+ }
+ if (csEntity == "gt") {
+ if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_gt) == 0)
+ BackUpAndReplaceDataAt(iSaveStart, '>');
+ return;
+ }
+ if (csEntity == "apos") {
+ if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_apos) == 0)
+ BackUpAndReplaceDataAt(iSaveStart, '\'');
+ return;
+ }
+ if (csEntity == "quot") {
+ if ((m_dwParseMode & CFX_SaxParseMode_NotConvert_quot) == 0)
+ BackUpAndReplaceDataAt(iSaveStart, '\"');
+ return;
}
}
void CFX_SAXReader::ParseText() {
if (m_CurByte == '<') {
- if (m_iDataPos > 0) {
- m_iDataLength = m_iDataPos;
- m_iDataPos = 0;
- if (m_pHandler) {
- NotifyData();
- }
+ if (!m_Data.empty()) {
+ NotifyData();
+ ClearData();
}
Push();
m_dwNodePos = m_File.m_dwCur + m_File.m_dwBufIndex;
m_eMode = CFX_SaxMode::NodeStart;
return;
}
- if (m_iDataPos < 1 && SkipSpace(m_CurByte)) {
+ if (m_Data.empty() && SkipSpace(m_CurByte))
return;
- }
+
ParseChar(m_CurByte);
}
@@ -413,7 +398,7 @@ void CFX_SAXReader::ParseNodeStart() {
m_dwDataOffset = m_File.m_dwBufIndex;
GetCurrentItem()->m_eNode = CFX_SAXItem::Type::Tag;
m_eMode = CFX_SaxMode::TagName;
- AppendData(m_CurByte);
+ AppendToData(m_CurByte);
}
}
@@ -443,58 +428,55 @@ void CFX_SAXReader::ParseComment() {
void CFX_SAXReader::ParseCommentContent() {
if (m_CurByte == '-') {
m_pCommentContext->m_iTailCount++;
- } else if (m_CurByte == '>' && m_pCommentContext->m_iTailCount == 2) {
- m_iDataLength = m_iDataPos;
- m_iDataPos = 0;
- if (m_pHandler) {
- NotifyTargetData();
- }
+ return;
+ }
+ if (m_CurByte == '>' && m_pCommentContext->m_iTailCount == 2) {
+ NotifyTargetData();
+ ClearData();
Pop();
m_eMode = CFX_SaxMode::Text;
- } else {
- while (m_pCommentContext->m_iTailCount > 0) {
- AppendData('-');
- m_pCommentContext->m_iTailCount--;
- }
- AppendData(m_CurByte);
+ return;
}
+ while (m_pCommentContext->m_iTailCount > 0) {
+ AppendToData('-');
+ m_pCommentContext->m_iTailCount--;
+ }
+ AppendToData(m_CurByte);
}
+
void CFX_SAXReader::ParseDeclNode() {
SkipNode();
}
+
void CFX_SAXReader::ParseTagName() {
if (m_CurByte < 0x21 || m_CurByte == '/' || m_CurByte == '>' ||
m_CurByte == '?') {
- m_iDataLength = m_iDataPos;
- m_iDataPos = 0;
- if (m_pHandler) {
- NotifyEnter();
- }
+ NotifyEnter();
+ ClearData();
if (m_CurByte < 0x21) {
+ ClearName();
m_eMode = CFX_SaxMode::TagAttributeName;
} else if (m_CurByte == '/' || m_CurByte == '?') {
m_ePrevMode = m_eMode;
m_eMode = CFX_SaxMode::TagMaybeClose;
} else {
- if (m_pHandler) {
- NotifyBreak();
- }
+ NotifyBreak();
m_eMode = CFX_SaxMode::Text;
}
} else {
- AppendData(m_CurByte);
+ AppendToData(m_CurByte);
}
}
+
void CFX_SAXReader::ParseTagAttributeName() {
if (m_CurByte < 0x21 || m_CurByte == '=') {
- if (m_iDataPos < 1 && m_CurByte < 0x21) {
+ if (m_Name.empty() && m_CurByte < 0x21)
return;
- }
- m_iNameLength = m_iDataPos;
- m_iDataPos = 0;
+
m_SkipChar = 0;
m_eMode = m_CurByte == '=' ? CFX_SaxMode::TagAttributeValue
: CFX_SaxMode::TagAttributeEqual;
+ ClearData();
return;
}
if (m_CurByte == '/' || m_CurByte == '>' || m_CurByte == '?') {
@@ -502,17 +484,14 @@ void CFX_SAXReader::ParseTagAttributeName() {
m_ePrevMode = m_eMode;
m_eMode = CFX_SaxMode::TagMaybeClose;
} else {
- if (m_pHandler) {
- NotifyBreak();
- }
+ NotifyBreak();
m_eMode = CFX_SaxMode::Text;
}
return;
}
- if (m_iDataPos < 1) {
+ if (m_Name.empty())
m_dwDataOffset = m_File.m_dwBufIndex;
- }
- AppendName(m_CurByte);
+ AppendToName(m_CurByte);
}
void CFX_SAXReader::ParseTagAttributeEqual() {
@@ -522,8 +501,7 @@ void CFX_SAXReader::ParseTagAttributeEqual() {
return;
}
if (GetCurrentItem()->m_eNode == CFX_SAXItem::Type::Instruction) {
- m_iDataPos = m_iNameLength;
- AppendName(0x20);
+ AppendToName(0x20);
m_eMode = CFX_SaxMode::TargetData;
ParseTargetData();
}
@@ -532,13 +510,9 @@ void CFX_SAXReader::ParseTagAttributeEqual() {
void CFX_SAXReader::ParseTagAttributeValue() {
if (m_SkipChar) {
if (m_SkipChar == m_CurByte) {
- {
- m_iDataLength = m_iDataPos;
- m_iDataPos = 0;
- if (m_pHandler) {
- NotifyAttribute();
- }
- }
+ NotifyAttribute();
+ ClearData();
+ ClearName();
m_SkipChar = 0;
m_eMode = CFX_SaxMode::TagAttributeName;
return;
@@ -549,36 +523,33 @@ void CFX_SAXReader::ParseTagAttributeValue() {
if (m_CurByte < 0x21) {
return;
}
- if (m_iDataPos < 1) {
- if (m_CurByte == '\'' || m_CurByte == '\"') {
+ if (m_Data.empty()) {
+ if (m_CurByte == '\'' || m_CurByte == '\"')
m_SkipChar = m_CurByte;
- }
}
}
void CFX_SAXReader::ParseMaybeClose() {
if (m_CurByte == '>') {
if (GetCurrentItem()->m_eNode == CFX_SAXItem::Type::Instruction) {
- m_iNameLength = m_iDataPos;
- m_iDataPos = 0;
- if (m_pHandler) {
- NotifyTargetData();
- }
+ NotifyTargetData();
+ ClearData();
+ ClearName();
}
ParseTagClose();
m_eMode = CFX_SaxMode::Text;
} else if (m_ePrevMode == CFX_SaxMode::TagName) {
- AppendData('/');
+ AppendToData('/');
m_eMode = CFX_SaxMode::TagName;
m_ePrevMode = CFX_SaxMode::Text;
ParseTagName();
} else if (m_ePrevMode == CFX_SaxMode::TagAttributeName) {
- AppendName('/');
+ AppendToName('/');
m_eMode = CFX_SaxMode::TagAttributeName;
m_ePrevMode = CFX_SaxMode::Text;
ParseTagAttributeName();
} else if (m_ePrevMode == CFX_SaxMode::TargetData) {
- AppendName('?');
+ AppendToName('?');
m_eMode = CFX_SaxMode::TargetData;
m_ePrevMode = CFX_SaxMode::Text;
ParseTargetData();
@@ -586,9 +557,7 @@ void CFX_SAXReader::ParseMaybeClose() {
}
void CFX_SAXReader::ParseTagClose() {
m_dwNodePos = m_File.m_dwCur + m_File.m_dwBufIndex;
- if (m_pHandler) {
- NotifyClose();
- }
+ NotifyClose();
Pop();
}
void CFX_SAXReader::ParseTagEnd() {
@@ -598,11 +567,8 @@ void CFX_SAXReader::ParseTagEnd() {
if (m_CurByte == '>') {
Pop();
m_dwNodePos = m_File.m_dwCur + m_File.m_dwBufIndex;
- m_iDataLength = m_iDataPos;
- m_iDataPos = 0;
- if (m_pHandler) {
- NotifyEnd();
- }
+ NotifyEnd();
+ ClearData();
Pop();
m_eMode = CFX_SaxMode::Text;
} else {
@@ -614,7 +580,7 @@ void CFX_SAXReader::ParseTargetData() {
m_ePrevMode = m_eMode;
m_eMode = CFX_SaxMode::TagMaybeClose;
} else {
- AppendName(m_CurByte);
+ AppendToName(m_CurByte);
}
}
void CFX_SAXReader::SkipNode() {
@@ -653,24 +619,18 @@ void CFX_SAXReader::SkipNode() {
m_SkipStack.pop();
m_SkipChar = !m_SkipStack.empty() ? m_SkipStack.top() : 0;
if (m_SkipStack.empty() && m_CurByte == '>') {
- m_iDataLength = m_iDataPos;
- m_iDataPos = 0;
- if (m_iDataLength >= 9 &&
- memcmp(m_pszData, "[CDATA[", 7 * sizeof(uint8_t)) == 0 &&
- memcmp(m_pszData + m_iDataLength - 2, "]]",
- 2 * sizeof(uint8_t)) == 0) {
+ if (m_Data.size() >= 9 && memcmp(m_Data.data(), "[CDATA[", 7) == 0 &&
+ memcmp(m_Data.data() + m_Data.size() - 2, "]]", 2) == 0) {
Pop();
- m_iDataLength -= 9;
- m_dwDataOffset += 7;
- memmove(m_pszData, m_pszData + 7, m_iDataLength * sizeof(uint8_t));
+ m_Data.erase(m_Data.begin(), m_Data.begin() + 7);
+ m_Data.erase(m_Data.end() - 2, m_Data.end());
m_bCharData = true;
- if (m_pHandler) {
- NotifyData();
- }
+ NotifyData();
m_bCharData = false;
} else {
Pop();
}
+ ClearData();
m_eMode = CFX_SaxMode::Text;
}
}
@@ -681,6 +641,9 @@ void CFX_SAXReader::SkipNode() {
}
void CFX_SAXReader::NotifyData() {
+ if (!m_pHandler)
+ return;
+
CFX_SAXItem* pItem = GetCurrentItem();
if (!pItem)
return;
@@ -689,37 +652,59 @@ void CFX_SAXReader::NotifyData() {
m_pHandler->OnTagData(
pItem->m_pNode,
m_bCharData ? CFX_SAXItem::Type::CharData : CFX_SAXItem::Type::Text,
- CFX_ByteStringC(m_pszData, m_iDataLength),
- m_File.m_dwCur + m_dwDataOffset);
+ CFX_ByteStringC(m_Data), m_File.m_dwCur + m_dwDataOffset);
}
void CFX_SAXReader::NotifyEnter() {
+ if (!m_pHandler)
+ return;
+
CFX_SAXItem* pItem = GetCurrentItem();
+ if (!pItem)
+ return;
+
if (pItem->m_eNode == CFX_SAXItem::Type::Tag ||
pItem->m_eNode == CFX_SAXItem::Type::Instruction) {
- pItem->m_pNode = m_pHandler->OnTagEnter(
- CFX_ByteStringC(m_pszData, m_iDataLength), pItem->m_eNode, m_dwNodePos);
+ pItem->m_pNode = m_pHandler->OnTagEnter(CFX_ByteStringC(m_Data),
+ pItem->m_eNode, m_dwNodePos);
}
}
void CFX_SAXReader::NotifyAttribute() {
+ if (!m_pHandler)
+ return;
+
CFX_SAXItem* pItem = GetCurrentItem();
+ if (!pItem)
+ return;
+
if (pItem->m_eNode == CFX_SAXItem::Type::Tag ||
pItem->m_eNode == CFX_SAXItem::Type::Instruction) {
- m_pHandler->OnTagAttribute(pItem->m_pNode,
- CFX_ByteStringC(m_pszName, m_iNameLength),
- CFX_ByteStringC(m_pszData, m_iDataLength));
+ m_pHandler->OnTagAttribute(pItem->m_pNode, CFX_ByteStringC(m_Name),
+ CFX_ByteStringC(m_Data));
}
}
void CFX_SAXReader::NotifyBreak() {
+ if (!m_pHandler)
+ return;
+
CFX_SAXItem* pItem = GetCurrentItem();
+ if (!pItem)
+ return;
+
if (pItem->m_eNode == CFX_SAXItem::Type::Tag)
m_pHandler->OnTagBreak(pItem->m_pNode);
}
void CFX_SAXReader::NotifyClose() {
+ if (!m_pHandler)
+ return;
+
CFX_SAXItem* pItem = GetCurrentItem();
+ if (!pItem)
+ return;
+
if (pItem->m_eNode == CFX_SAXItem::Type::Tag ||
pItem->m_eNode == CFX_SAXItem::Type::Instruction) {
m_pHandler->OnTagClose(pItem->m_pNode, m_dwNodePos);
@@ -727,31 +712,36 @@ void CFX_SAXReader::NotifyClose() {
}
void CFX_SAXReader::NotifyEnd() {
+ if (!m_pHandler)
+ return;
+
CFX_SAXItem* pItem = GetCurrentItem();
- if (!pItem || pItem->m_eNode != CFX_SAXItem::Type::Tag)
+ if (!pItem)
return;
- m_pHandler->OnTagEnd(pItem->m_pNode,
- CFX_ByteStringC(m_pszData, m_iDataLength), m_dwNodePos);
+ if (pItem->m_eNode == CFX_SAXItem::Type::Tag)
+ m_pHandler->OnTagEnd(pItem->m_pNode, CFX_ByteStringC(m_Data), m_dwNodePos);
}
void CFX_SAXReader::NotifyTargetData() {
+ if (!m_pHandler)
+ return;
+
CFX_SAXItem* pItem = GetCurrentItem();
+ if (!pItem)
+ return;
+
if (pItem->m_eNode == CFX_SAXItem::Type::Instruction) {
m_pHandler->OnTargetData(pItem->m_pNode, pItem->m_eNode,
- CFX_ByteStringC(m_pszName, m_iNameLength),
- m_dwNodePos);
+ CFX_ByteStringC(m_Name), m_dwNodePos);
} else if (pItem->m_eNode == CFX_SAXItem::Type::Comment) {
m_pHandler->OnTargetData(pItem->m_pNode, pItem->m_eNode,
- CFX_ByteStringC(m_pszData, m_iDataLength),
- m_dwNodePos);
+ CFX_ByteStringC(m_Data), m_dwNodePos);
}
}
void CFX_SAXReader::SkipCurrentNode() {
CFX_SAXItem* pItem = GetCurrentItem();
- if (!pItem)
- return;
-
- pItem->m_bSkip = true;
+ if (pItem)
+ pItem->m_bSkip = true;
}
diff --git a/core/fxcrt/xml/cfx_saxreader.h b/core/fxcrt/xml/cfx_saxreader.h
index 45f0d07084..47ef79c50f 100644
--- a/core/fxcrt/xml/cfx_saxreader.h
+++ b/core/fxcrt/xml/cfx_saxreader.h
@@ -9,6 +9,7 @@
#include <memory>
#include <stack>
+#include <vector>
#include "core/fxcrt/fx_basic.h"
@@ -124,6 +125,14 @@ class CFX_SAXReader {
void ParseTagEnd();
void ParseTargetData();
void Reset();
+ void ClearData();
+ void ClearName();
+ void AppendToData(uint8_t ch);
+ void AppendToName(uint8_t ch);
+ void BackUpAndReplaceDataAt(int32_t index, uint8_t ch);
+ bool IsEntityStart(uint8_t ch) const;
+ bool IsEntityEnd(uint8_t ch) const;
+ int32_t CurrentDataIndex() const;
void Push();
void Pop();
CFX_SAXItem* GetCurrentItem() const;
@@ -153,14 +162,9 @@ class CFX_SAXReader {
std::stack<char> m_SkipStack;
uint8_t m_SkipChar;
uint32_t m_dwNodePos;
- uint8_t* m_pszData;
- int32_t m_iDataSize;
- int32_t m_iDataLength;
- int32_t m_iEntityStart;
- int32_t m_iDataPos;
- uint8_t* m_pszName;
- int32_t m_iNameSize;
- int32_t m_iNameLength;
+ std::vector<uint8_t> m_Data;
+ int32_t m_iEntityStart; // Index into m_Data.
+ std::vector<uint8_t> m_Name;
uint32_t m_dwParseMode;
std::unique_ptr<CFX_SAXCommentContext> m_pCommentContext;
};
diff --git a/core/fxcrt/xml/cfx_saxreader_unittest.cpp b/core/fxcrt/xml/cfx_saxreader_unittest.cpp
index f79b82c3cc..7865d0b77c 100644
--- a/core/fxcrt/xml/cfx_saxreader_unittest.cpp
+++ b/core/fxcrt/xml/cfx_saxreader_unittest.cpp
@@ -130,3 +130,21 @@ TEST_F(CFX_SAXReaderTest, TextWithinTag) {
ASSERT_TRUE(StartParse(data));
EXPECT_EQ(100, ContinueParse());
}
+
+TEST_F(CFX_SAXReaderTest, bug_711459) {
+ char data[] =
+ "&a<tag "
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ ">x;";
+ ASSERT_TRUE(StartParse(data));
+ EXPECT_EQ(100, ContinueParse());
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-26 01:20:58 +0000