mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
Bug 1181054 - Part 1: Move FormFillIterator and FormDataParser to FetchUtil.cpp; r=bkelly
These two classes were not moved at the same time their consumer moved from Fetch.cpp to FetchUtil.cpp.
This commit is contained in:
parent
8ee5c3c5bd
commit
4943eccd2a
@ -454,395 +454,6 @@ ExtractFromURLSearchParams(const URLSearchParams& aParams,
|
||||
aContentType = NS_LITERAL_CSTRING("application/x-www-form-urlencoded;charset=UTF-8");
|
||||
return NS_NewStringInputStream(aStream, serialized);
|
||||
}
|
||||
|
||||
class MOZ_STACK_CLASS FillFormIterator final
|
||||
: public URLSearchParams::ForEachIterator
|
||||
{
|
||||
public:
|
||||
explicit FillFormIterator(nsFormData* aFormData)
|
||||
: mFormData(aFormData)
|
||||
{
|
||||
MOZ_ASSERT(aFormData);
|
||||
}
|
||||
|
||||
bool URLParamsIterator(const nsString& aName,
|
||||
const nsString& aValue) override
|
||||
{
|
||||
mFormData->Append(aName, aValue);
|
||||
return true;
|
||||
}
|
||||
|
||||
private:
|
||||
nsFormData* mFormData;
|
||||
};
|
||||
|
||||
/**
|
||||
* A simple multipart/form-data parser as defined in RFC 2388 and RFC 2046.
|
||||
* This does not respect any encoding specified per entry, using UTF-8
|
||||
* throughout. This is as the Fetch spec states in the consume body algorithm.
|
||||
* Borrows some things from Necko's nsMultiMixedConv, but is simpler since
|
||||
* unlike Necko we do not have to deal with receiving incomplete chunks of data.
|
||||
*
|
||||
* This parser will fail the entire parse on any invalid entry, so it will
|
||||
* never return a partially filled FormData.
|
||||
* The content-disposition header is used to figure out the name and filename
|
||||
* entries. The inclusion of the filename parameter decides if the entry is
|
||||
* inserted into the nsFormData as a string or a File.
|
||||
*
|
||||
* File blobs are copies of the underlying data string since we cannot adopt
|
||||
* char* chunks embedded within the larger body without significant effort.
|
||||
* FIXME(nsm): Bug 1127552 - We should add telemetry to calls to formData() and
|
||||
* friends to figure out if Fetch ends up copying big blobs to see if this is
|
||||
* worth optimizing.
|
||||
*/
|
||||
class MOZ_STACK_CLASS FormDataParser
|
||||
{
|
||||
private:
|
||||
RefPtr<nsFormData> mFormData;
|
||||
nsCString mMimeType;
|
||||
nsCString mData;
|
||||
|
||||
// Entry state, reset in START_PART.
|
||||
nsCString mName;
|
||||
nsCString mFilename;
|
||||
nsCString mContentType;
|
||||
|
||||
enum
|
||||
{
|
||||
START_PART,
|
||||
PARSE_HEADER,
|
||||
PARSE_BODY,
|
||||
} mState;
|
||||
|
||||
nsIGlobalObject* mParentObject;
|
||||
|
||||
// Reads over a boundary and sets start to the position after the end of the
|
||||
// boundary. Returns false if no boundary is found immediately.
|
||||
bool
|
||||
PushOverBoundary(const nsACString& aBoundaryString,
|
||||
nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd)
|
||||
{
|
||||
// We copy the end iterator to keep the original pointing to the real end
|
||||
// of the string.
|
||||
nsACString::const_iterator end(aEnd);
|
||||
const char* beginning = aStart.get();
|
||||
if (FindInReadable(aBoundaryString, aStart, end)) {
|
||||
// We either should find the body immediately, or after 2 chars with the
|
||||
// 2 chars being '-', everything else is failure.
|
||||
if ((aStart.get() - beginning) == 0) {
|
||||
aStart.advance(aBoundaryString.Length());
|
||||
return true;
|
||||
}
|
||||
|
||||
if ((aStart.get() - beginning) == 2) {
|
||||
if (*(--aStart) == '-' && *(--aStart) == '-') {
|
||||
aStart.advance(aBoundaryString.Length() + 2);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
// Reads over a CRLF and positions start after it.
|
||||
bool
|
||||
PushOverLine(nsACString::const_iterator& aStart)
|
||||
{
|
||||
if (*aStart == nsCRT::CR && (aStart.size_forward() > 1) && *(++aStart) == nsCRT::LF) {
|
||||
++aStart; // advance to after CRLF
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool
|
||||
FindCRLF(nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd)
|
||||
{
|
||||
nsACString::const_iterator end(aEnd);
|
||||
return FindInReadable(NS_LITERAL_CSTRING("\r\n"), aStart, end);
|
||||
}
|
||||
|
||||
bool
|
||||
ParseHeader(nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd,
|
||||
bool* aWasEmptyHeader)
|
||||
{
|
||||
MOZ_ASSERT(aWasEmptyHeader);
|
||||
// Set it to a valid value here so we don't forget later.
|
||||
*aWasEmptyHeader = false;
|
||||
|
||||
const char* beginning = aStart.get();
|
||||
nsACString::const_iterator end(aEnd);
|
||||
if (!FindCRLF(aStart, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (aStart.get() == beginning) {
|
||||
*aWasEmptyHeader = true;
|
||||
return true;
|
||||
}
|
||||
|
||||
nsAutoCString header(beginning, aStart.get() - beginning);
|
||||
|
||||
nsACString::const_iterator headerStart, headerEnd;
|
||||
header.BeginReading(headerStart);
|
||||
header.EndReading(headerEnd);
|
||||
if (!FindCharInReadable(':', headerStart, headerEnd)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsAutoCString headerName(StringHead(header, headerStart.size_backward()));
|
||||
headerName.CompressWhitespace();
|
||||
if (!NS_IsValidHTTPToken(headerName)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsAutoCString headerValue(Substring(++headerStart, headerEnd));
|
||||
if (!NS_IsReasonableHTTPHeaderValue(headerValue)) {
|
||||
return false;
|
||||
}
|
||||
headerValue.CompressWhitespace();
|
||||
|
||||
if (headerName.LowerCaseEqualsLiteral("content-disposition")) {
|
||||
nsCCharSeparatedTokenizer tokenizer(headerValue, ';');
|
||||
bool seenFormData = false;
|
||||
while (tokenizer.hasMoreTokens()) {
|
||||
const nsDependentCSubstring& token = tokenizer.nextToken();
|
||||
if (token.IsEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (token.EqualsLiteral("form-data")) {
|
||||
seenFormData = true;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (seenFormData &&
|
||||
StringBeginsWith(token, NS_LITERAL_CSTRING("name="))) {
|
||||
mName = StringTail(token, token.Length() - 5);
|
||||
mName.Trim(" \"");
|
||||
continue;
|
||||
}
|
||||
|
||||
if (seenFormData &&
|
||||
StringBeginsWith(token, NS_LITERAL_CSTRING("filename="))) {
|
||||
mFilename = StringTail(token, token.Length() - 9);
|
||||
mFilename.Trim(" \"");
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (mName.IsVoid()) {
|
||||
// Could not parse a valid entry name.
|
||||
return false;
|
||||
}
|
||||
} else if (headerName.LowerCaseEqualsLiteral("content-type")) {
|
||||
mContentType = headerValue;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
// The end of a body is marked by a CRLF followed by the boundary. So the
|
||||
// CRLF is part of the boundary and not the body, but any prior CRLFs are
|
||||
// part of the body. This will position the iterator at the beginning of the
|
||||
// boundary (after the CRLF).
|
||||
bool
|
||||
ParseBody(const nsACString& aBoundaryString,
|
||||
nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd)
|
||||
{
|
||||
const char* beginning = aStart.get();
|
||||
|
||||
// Find the boundary marking the end of the body.
|
||||
nsACString::const_iterator end(aEnd);
|
||||
if (!FindInReadable(aBoundaryString, aStart, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// We found a boundary, strip the just prior CRLF, and consider
|
||||
// everything else the body section.
|
||||
if (aStart.get() - beginning < 2) {
|
||||
// Only the first entry can have a boundary right at the beginning. Even
|
||||
// an empty body will have a CRLF before the boundary. So this is
|
||||
// a failure.
|
||||
return false;
|
||||
}
|
||||
|
||||
// Check that there is a CRLF right before the boundary.
|
||||
aStart.advance(-2);
|
||||
|
||||
// Skip optional hyphens.
|
||||
if (*aStart == '-' && *(aStart.get()+1) == '-') {
|
||||
if (aStart.get() - beginning < 2) {
|
||||
return false;
|
||||
}
|
||||
|
||||
aStart.advance(-2);
|
||||
}
|
||||
|
||||
if (*aStart != nsCRT::CR || *(aStart.get()+1) != nsCRT::LF) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsAutoCString body(beginning, aStart.get() - beginning);
|
||||
|
||||
// Restore iterator to after the \r\n as we promised.
|
||||
// We do not need to handle the extra hyphens case since our boundary
|
||||
// parser in PushOverBoundary()
|
||||
aStart.advance(2);
|
||||
|
||||
if (!mFormData) {
|
||||
mFormData = new nsFormData();
|
||||
}
|
||||
|
||||
NS_ConvertUTF8toUTF16 name(mName);
|
||||
|
||||
if (mFilename.IsVoid()) {
|
||||
mFormData->Append(name, NS_ConvertUTF8toUTF16(body));
|
||||
} else {
|
||||
// Unfortunately we've to copy the data first since all our strings are
|
||||
// going to free it. We also need fallible alloc, so we can't just use
|
||||
// ToNewCString().
|
||||
char* copy = static_cast<char*>(moz_xmalloc(body.Length()));
|
||||
if (!copy) {
|
||||
NS_WARNING("Failed to copy File entry body.");
|
||||
return false;
|
||||
}
|
||||
nsCString::const_iterator bodyIter, bodyEnd;
|
||||
body.BeginReading(bodyIter);
|
||||
body.EndReading(bodyEnd);
|
||||
char *p = copy;
|
||||
while (bodyIter != bodyEnd) {
|
||||
*p++ = *bodyIter++;
|
||||
}
|
||||
p = nullptr;
|
||||
|
||||
RefPtr<Blob> file =
|
||||
File::CreateMemoryFile(mParentObject,
|
||||
reinterpret_cast<void *>(copy), body.Length(),
|
||||
NS_ConvertUTF8toUTF16(mFilename),
|
||||
NS_ConvertUTF8toUTF16(mContentType), /* aLastModifiedDate */ 0);
|
||||
Optional<nsAString> dummy;
|
||||
mFormData->Append(name, *file, dummy);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
public:
|
||||
FormDataParser(const nsACString& aMimeType, const nsACString& aData, nsIGlobalObject* aParent)
|
||||
: mMimeType(aMimeType), mData(aData), mState(START_PART), mParentObject(aParent)
|
||||
{
|
||||
}
|
||||
|
||||
bool
|
||||
Parse()
|
||||
{
|
||||
// Determine boundary from mimetype.
|
||||
const char* boundaryId = nullptr;
|
||||
boundaryId = strstr(mMimeType.BeginWriting(), "boundary");
|
||||
if (!boundaryId) {
|
||||
return false;
|
||||
}
|
||||
|
||||
boundaryId = strchr(boundaryId, '=');
|
||||
if (!boundaryId) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Skip over '='.
|
||||
boundaryId++;
|
||||
|
||||
char *attrib = (char *) strchr(boundaryId, ';');
|
||||
if (attrib) *attrib = '\0';
|
||||
|
||||
nsAutoCString boundaryString(boundaryId);
|
||||
if (attrib) *attrib = ';';
|
||||
|
||||
boundaryString.Trim(" \"");
|
||||
|
||||
if (boundaryString.Length() == 0) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsACString::const_iterator start, end;
|
||||
mData.BeginReading(start);
|
||||
// This should ALWAYS point to the end of data.
|
||||
// Helpers make copies.
|
||||
mData.EndReading(end);
|
||||
|
||||
while (start != end) {
|
||||
switch(mState) {
|
||||
case START_PART:
|
||||
mName.SetIsVoid(true);
|
||||
mFilename.SetIsVoid(true);
|
||||
mContentType = NS_LITERAL_CSTRING("text/plain");
|
||||
|
||||
// MUST start with boundary.
|
||||
if (!PushOverBoundary(boundaryString, start, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (start != end && *start == '-') {
|
||||
// End of data.
|
||||
if (!mFormData) {
|
||||
mFormData = new nsFormData();
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
if (!PushOverLine(start)) {
|
||||
return false;
|
||||
}
|
||||
mState = PARSE_HEADER;
|
||||
break;
|
||||
|
||||
case PARSE_HEADER:
|
||||
bool emptyHeader;
|
||||
if (!ParseHeader(start, end, &emptyHeader)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!PushOverLine(start)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
mState = emptyHeader ? PARSE_BODY : PARSE_HEADER;
|
||||
break;
|
||||
|
||||
case PARSE_BODY:
|
||||
if (mName.IsVoid()) {
|
||||
NS_WARNING("No content-disposition header with a valid name was "
|
||||
"found. Failing at body parse.");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!ParseBody(boundaryString, start, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
mState = START_PART;
|
||||
break;
|
||||
|
||||
default:
|
||||
MOZ_CRASH("Invalid case");
|
||||
}
|
||||
}
|
||||
|
||||
NS_NOTREACHED("Should never reach here.");
|
||||
return false;
|
||||
}
|
||||
|
||||
already_AddRefed<nsFormData> FormData()
|
||||
{
|
||||
return mFormData.forget();
|
||||
}
|
||||
};
|
||||
} // namespace
|
||||
|
||||
nsresult
|
||||
|
@ -122,6 +122,397 @@ FetchUtil::ConsumeBlob(nsISupports* aParent, const nsString& aMimeType,
|
||||
return blob.forget();
|
||||
}
|
||||
|
||||
namespace {
|
||||
class MOZ_STACK_CLASS FillFormIterator final
|
||||
: public URLSearchParams::ForEachIterator
|
||||
{
|
||||
public:
|
||||
explicit FillFormIterator(nsFormData* aFormData)
|
||||
: mFormData(aFormData)
|
||||
{
|
||||
MOZ_ASSERT(aFormData);
|
||||
}
|
||||
|
||||
bool URLParamsIterator(const nsString& aName,
|
||||
const nsString& aValue) override
|
||||
{
|
||||
mFormData->Append(aName, aValue);
|
||||
return true;
|
||||
}
|
||||
|
||||
private:
|
||||
nsFormData* mFormData;
|
||||
};
|
||||
|
||||
/**
|
||||
* A simple multipart/form-data parser as defined in RFC 2388 and RFC 2046.
|
||||
* This does not respect any encoding specified per entry, using UTF-8
|
||||
* throughout. This is as the Fetch spec states in the consume body algorithm.
|
||||
* Borrows some things from Necko's nsMultiMixedConv, but is simpler since
|
||||
* unlike Necko we do not have to deal with receiving incomplete chunks of data.
|
||||
*
|
||||
* This parser will fail the entire parse on any invalid entry, so it will
|
||||
* never return a partially filled FormData.
|
||||
* The content-disposition header is used to figure out the name and filename
|
||||
* entries. The inclusion of the filename parameter decides if the entry is
|
||||
* inserted into the nsFormData as a string or a File.
|
||||
*
|
||||
* File blobs are copies of the underlying data string since we cannot adopt
|
||||
* char* chunks embedded within the larger body without significant effort.
|
||||
* FIXME(nsm): Bug 1127552 - We should add telemetry to calls to formData() and
|
||||
* friends to figure out if Fetch ends up copying big blobs to see if this is
|
||||
* worth optimizing.
|
||||
*/
|
||||
class MOZ_STACK_CLASS FormDataParser
|
||||
{
|
||||
private:
|
||||
RefPtr<nsFormData> mFormData;
|
||||
nsCString mMimeType;
|
||||
nsCString mData;
|
||||
|
||||
// Entry state, reset in START_PART.
|
||||
nsCString mName;
|
||||
nsCString mFilename;
|
||||
nsCString mContentType;
|
||||
|
||||
enum
|
||||
{
|
||||
START_PART,
|
||||
PARSE_HEADER,
|
||||
PARSE_BODY,
|
||||
} mState;
|
||||
|
||||
nsIGlobalObject* mParentObject;
|
||||
|
||||
// Reads over a boundary and sets start to the position after the end of the
|
||||
// boundary. Returns false if no boundary is found immediately.
|
||||
bool
|
||||
PushOverBoundary(const nsACString& aBoundaryString,
|
||||
nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd)
|
||||
{
|
||||
// We copy the end iterator to keep the original pointing to the real end
|
||||
// of the string.
|
||||
nsACString::const_iterator end(aEnd);
|
||||
const char* beginning = aStart.get();
|
||||
if (FindInReadable(aBoundaryString, aStart, end)) {
|
||||
// We either should find the body immediately, or after 2 chars with the
|
||||
// 2 chars being '-', everything else is failure.
|
||||
if ((aStart.get() - beginning) == 0) {
|
||||
aStart.advance(aBoundaryString.Length());
|
||||
return true;
|
||||
}
|
||||
|
||||
if ((aStart.get() - beginning) == 2) {
|
||||
if (*(--aStart) == '-' && *(--aStart) == '-') {
|
||||
aStart.advance(aBoundaryString.Length() + 2);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
// Reads over a CRLF and positions start after it.
|
||||
bool
|
||||
PushOverLine(nsACString::const_iterator& aStart)
|
||||
{
|
||||
if (*aStart == nsCRT::CR && (aStart.size_forward() > 1) && *(++aStart) == nsCRT::LF) {
|
||||
++aStart; // advance to after CRLF
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool
|
||||
FindCRLF(nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd)
|
||||
{
|
||||
nsACString::const_iterator end(aEnd);
|
||||
return FindInReadable(NS_LITERAL_CSTRING("\r\n"), aStart, end);
|
||||
}
|
||||
|
||||
bool
|
||||
ParseHeader(nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd,
|
||||
bool* aWasEmptyHeader)
|
||||
{
|
||||
MOZ_ASSERT(aWasEmptyHeader);
|
||||
// Set it to a valid value here so we don't forget later.
|
||||
*aWasEmptyHeader = false;
|
||||
|
||||
const char* beginning = aStart.get();
|
||||
nsACString::const_iterator end(aEnd);
|
||||
if (!FindCRLF(aStart, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (aStart.get() == beginning) {
|
||||
*aWasEmptyHeader = true;
|
||||
return true;
|
||||
}
|
||||
|
||||
nsAutoCString header(beginning, aStart.get() - beginning);
|
||||
|
||||
nsACString::const_iterator headerStart, headerEnd;
|
||||
header.BeginReading(headerStart);
|
||||
header.EndReading(headerEnd);
|
||||
if (!FindCharInReadable(':', headerStart, headerEnd)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsAutoCString headerName(StringHead(header, headerStart.size_backward()));
|
||||
headerName.CompressWhitespace();
|
||||
if (!NS_IsValidHTTPToken(headerName)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsAutoCString headerValue(Substring(++headerStart, headerEnd));
|
||||
if (!NS_IsReasonableHTTPHeaderValue(headerValue)) {
|
||||
return false;
|
||||
}
|
||||
headerValue.CompressWhitespace();
|
||||
|
||||
if (headerName.LowerCaseEqualsLiteral("content-disposition")) {
|
||||
nsCCharSeparatedTokenizer tokenizer(headerValue, ';');
|
||||
bool seenFormData = false;
|
||||
while (tokenizer.hasMoreTokens()) {
|
||||
const nsDependentCSubstring& token = tokenizer.nextToken();
|
||||
if (token.IsEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (token.EqualsLiteral("form-data")) {
|
||||
seenFormData = true;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (seenFormData &&
|
||||
StringBeginsWith(token, NS_LITERAL_CSTRING("name="))) {
|
||||
mName = StringTail(token, token.Length() - 5);
|
||||
mName.Trim(" \"");
|
||||
continue;
|
||||
}
|
||||
|
||||
if (seenFormData &&
|
||||
StringBeginsWith(token, NS_LITERAL_CSTRING("filename="))) {
|
||||
mFilename = StringTail(token, token.Length() - 9);
|
||||
mFilename.Trim(" \"");
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (mName.IsVoid()) {
|
||||
// Could not parse a valid entry name.
|
||||
return false;
|
||||
}
|
||||
} else if (headerName.LowerCaseEqualsLiteral("content-type")) {
|
||||
mContentType = headerValue;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
// The end of a body is marked by a CRLF followed by the boundary. So the
|
||||
// CRLF is part of the boundary and not the body, but any prior CRLFs are
|
||||
// part of the body. This will position the iterator at the beginning of the
|
||||
// boundary (after the CRLF).
|
||||
bool
|
||||
ParseBody(const nsACString& aBoundaryString,
|
||||
nsACString::const_iterator& aStart,
|
||||
nsACString::const_iterator& aEnd)
|
||||
{
|
||||
const char* beginning = aStart.get();
|
||||
|
||||
// Find the boundary marking the end of the body.
|
||||
nsACString::const_iterator end(aEnd);
|
||||
if (!FindInReadable(aBoundaryString, aStart, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// We found a boundary, strip the just prior CRLF, and consider
|
||||
// everything else the body section.
|
||||
if (aStart.get() - beginning < 2) {
|
||||
// Only the first entry can have a boundary right at the beginning. Even
|
||||
// an empty body will have a CRLF before the boundary. So this is
|
||||
// a failure.
|
||||
return false;
|
||||
}
|
||||
|
||||
// Check that there is a CRLF right before the boundary.
|
||||
aStart.advance(-2);
|
||||
|
||||
// Skip optional hyphens.
|
||||
if (*aStart == '-' && *(aStart.get()+1) == '-') {
|
||||
if (aStart.get() - beginning < 2) {
|
||||
return false;
|
||||
}
|
||||
|
||||
aStart.advance(-2);
|
||||
}
|
||||
|
||||
if (*aStart != nsCRT::CR || *(aStart.get()+1) != nsCRT::LF) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsAutoCString body(beginning, aStart.get() - beginning);
|
||||
|
||||
// Restore iterator to after the \r\n as we promised.
|
||||
// We do not need to handle the extra hyphens case since our boundary
|
||||
// parser in PushOverBoundary()
|
||||
aStart.advance(2);
|
||||
|
||||
if (!mFormData) {
|
||||
mFormData = new nsFormData();
|
||||
}
|
||||
|
||||
NS_ConvertUTF8toUTF16 name(mName);
|
||||
|
||||
if (mFilename.IsVoid()) {
|
||||
mFormData->Append(name, NS_ConvertUTF8toUTF16(body));
|
||||
} else {
|
||||
// Unfortunately we've to copy the data first since all our strings are
|
||||
// going to free it. We also need fallible alloc, so we can't just use
|
||||
// ToNewCString().
|
||||
char* copy = static_cast<char*>(moz_xmalloc(body.Length()));
|
||||
if (!copy) {
|
||||
NS_WARNING("Failed to copy File entry body.");
|
||||
return false;
|
||||
}
|
||||
nsCString::const_iterator bodyIter, bodyEnd;
|
||||
body.BeginReading(bodyIter);
|
||||
body.EndReading(bodyEnd);
|
||||
char *p = copy;
|
||||
while (bodyIter != bodyEnd) {
|
||||
*p++ = *bodyIter++;
|
||||
}
|
||||
p = nullptr;
|
||||
|
||||
RefPtr<Blob> file =
|
||||
File::CreateMemoryFile(mParentObject,
|
||||
reinterpret_cast<void *>(copy), body.Length(),
|
||||
NS_ConvertUTF8toUTF16(mFilename),
|
||||
NS_ConvertUTF8toUTF16(mContentType), /* aLastModifiedDate */ 0);
|
||||
Optional<nsAString> dummy;
|
||||
mFormData->Append(name, *file, dummy);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
public:
|
||||
FormDataParser(const nsACString& aMimeType, const nsACString& aData, nsIGlobalObject* aParent)
|
||||
: mMimeType(aMimeType), mData(aData), mState(START_PART), mParentObject(aParent)
|
||||
{
|
||||
}
|
||||
|
||||
bool
|
||||
Parse()
|
||||
{
|
||||
// Determine boundary from mimetype.
|
||||
const char* boundaryId = nullptr;
|
||||
boundaryId = strstr(mMimeType.BeginWriting(), "boundary");
|
||||
if (!boundaryId) {
|
||||
return false;
|
||||
}
|
||||
|
||||
boundaryId = strchr(boundaryId, '=');
|
||||
if (!boundaryId) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Skip over '='.
|
||||
boundaryId++;
|
||||
|
||||
char *attrib = (char *) strchr(boundaryId, ';');
|
||||
if (attrib) *attrib = '\0';
|
||||
|
||||
nsAutoCString boundaryString(boundaryId);
|
||||
if (attrib) *attrib = ';';
|
||||
|
||||
boundaryString.Trim(" \"");
|
||||
|
||||
if (boundaryString.Length() == 0) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nsACString::const_iterator start, end;
|
||||
mData.BeginReading(start);
|
||||
// This should ALWAYS point to the end of data.
|
||||
// Helpers make copies.
|
||||
mData.EndReading(end);
|
||||
|
||||
while (start != end) {
|
||||
switch(mState) {
|
||||
case START_PART:
|
||||
mName.SetIsVoid(true);
|
||||
mFilename.SetIsVoid(true);
|
||||
mContentType = NS_LITERAL_CSTRING("text/plain");
|
||||
|
||||
// MUST start with boundary.
|
||||
if (!PushOverBoundary(boundaryString, start, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (start != end && *start == '-') {
|
||||
// End of data.
|
||||
if (!mFormData) {
|
||||
mFormData = new nsFormData();
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
if (!PushOverLine(start)) {
|
||||
return false;
|
||||
}
|
||||
mState = PARSE_HEADER;
|
||||
break;
|
||||
|
||||
case PARSE_HEADER:
|
||||
bool emptyHeader;
|
||||
if (!ParseHeader(start, end, &emptyHeader)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!PushOverLine(start)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
mState = emptyHeader ? PARSE_BODY : PARSE_HEADER;
|
||||
break;
|
||||
|
||||
case PARSE_BODY:
|
||||
if (mName.IsVoid()) {
|
||||
NS_WARNING("No content-disposition header with a valid name was "
|
||||
"found. Failing at body parse.");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!ParseBody(boundaryString, start, end)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
mState = START_PART;
|
||||
break;
|
||||
|
||||
default:
|
||||
MOZ_CRASH("Invalid case");
|
||||
}
|
||||
}
|
||||
|
||||
NS_NOTREACHED("Should never reach here.");
|
||||
return false;
|
||||
}
|
||||
|
||||
already_AddRefed<nsFormData> FormData()
|
||||
{
|
||||
return mFormData.forget();
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
// static
|
||||
already_AddRefed<nsFormData>
|
||||
FetchUtil::ConsumeFormData(nsIGlobalObject* aParent, const nsCString& aMimeType,
|
||||
|
Loading…
Reference in New Issue
Block a user