nsresult
nsGopherContentStream::ParseTypeAndSelector(char &type, nsCString &selector)
{
nsCAutoString buffer;
nsresult rv = mChannel->URI()->GetPath(buffer); // unescaped down below
if (NS_FAILED(rv))
return rv;
// No path given
if (buffer[0] == '\0' || (buffer[0] == '/' && buffer[1] == '\0')) {
type = '1';
selector.Truncate();
} else {
NS_ENSURE_STATE(buffer[1] != '\0');
type = buffer[1]; // Ignore leading '/'
// Do it this way in case selector contains embedded nulls after
// unescaping.
char *sel = buffer.BeginWriting() + 2;
PRInt32 count = nsUnescapeCount(sel);
selector.Assign(sel, count);
// NOTE: FindCharInSet cannot be used to search for a null byte.
if (selector.FindCharInSet("\t\n\r") != kNotFound ||
selector.FindChar('\0') != kNotFound) {
// gopher selectors cannot containt tab, cr, lf, or \0
return NS_ERROR_MALFORMED_URI;
}
}
return NS_OK;
}
nsresult
nsChromeRegistry::GetProviderAndPath(nsIURL* aChromeURL,
nsACString& aProvider, nsACString& aPath)
{
nsresult rv;
#ifdef DEBUG
PRBool isChrome;
aChromeURL->SchemeIs("chrome", &isChrome);
NS_ASSERTION(isChrome, "Non-chrome URI?");
#endif
nsCAutoString path;
rv = aChromeURL->GetPath(path);
NS_ENSURE_SUCCESS(rv, rv);
if (path.Length() < 3) {
LogMessage("Invalid chrome URI: %s", path.get());
return NS_ERROR_FAILURE;
}
path.SetLength(nsUnescapeCount(path.BeginWriting()));
NS_ASSERTION(path.First() == '/', "Path should always begin with a slash!");
PRInt32 slash = path.FindChar('/', 1);
if (slash == 1) {
LogMessage("Invalid chrome URI: %s", path.get());
return NS_ERROR_FAILURE;
}
if (slash == -1) {
aPath.Truncate();
}
else {
if (slash == (PRInt32) path.Length() - 1)
aPath.Truncate();
else
aPath.Assign(path.get() + slash + 1, path.Length() - slash - 1);
--slash;
}
aProvider.Assign(path.get() + 1, slash);
return NS_OK;
}
NS_IMETHODIMP
nsIndexedToHTML::OnIndexAvailable(nsIRequest *aRequest,
nsISupports *aCtxt,
nsIDirIndex *aIndex) {
nsresult rv;
if (!aIndex)
return NS_ERROR_NULL_POINTER;
nsCString pushBuffer;
pushBuffer.AppendLiteral("<tr");
// We don't know the file's character set yet, so retrieve the raw bytes
// which will be decoded by the HTML parser.
nsXPIDLCString loc;
aIndex->GetLocation(getter_Copies(loc));
// Adjust the length in case unescaping shortened the string.
loc.Truncate(nsUnescapeCount(loc.BeginWriting()));
if (loc.First() == char16_t('.'))
pushBuffer.AppendLiteral(" class=\"hidden-object\"");
pushBuffer.AppendLiteral(">\n <td sortable-data=\"");
// The sort key is the name of the item, prepended by either 0, 1 or 2
// in order to group items.
uint32_t type;
aIndex->GetType(&type);
switch (type) {
case nsIDirIndex::TYPE_SYMLINK:
pushBuffer.Append('0');
break;
case nsIDirIndex::TYPE_DIRECTORY:
pushBuffer.Append('1');
break;
default:
pushBuffer.Append('2');
break;
}
nsAdoptingCString escaped(nsEscapeHTML(loc));
pushBuffer.Append(escaped);
pushBuffer.AppendLiteral("\"><table class=\"ellipsis\"><tbody><tr><td><a class=\"");
switch (type) {
case nsIDirIndex::TYPE_DIRECTORY:
pushBuffer.AppendLiteral("dir");
break;
case nsIDirIndex::TYPE_SYMLINK:
pushBuffer.AppendLiteral("symlink");
break;
default:
pushBuffer.AppendLiteral("file");
break;
}
pushBuffer.AppendLiteral("\" href=\"");
// need to escape links
nsAutoCString locEscaped;
// Adding trailing slash helps to recognize whether the URL points to a file
// or a directory (bug #214405).
if ((type == nsIDirIndex::TYPE_DIRECTORY) && (loc.Last() != '/')) {
loc.Append('/');
}
// now minimally re-escape the location...
uint32_t escFlags;
// for some protocols, we expect the location to be absolute.
// if so, and if the location indeed appears to be a valid URI, then go
// ahead and treat it like one.
nsAutoCString scheme;
if (mExpectAbsLoc &&
NS_SUCCEEDED(net_ExtractURLScheme(loc, scheme))) {
// escape as absolute
escFlags = esc_Forced | esc_AlwaysCopy | esc_Minimal;
}
else {
// escape as relative
// esc_Directory is needed because directories have a trailing slash.
// Without it, the trailing '/' will be escaped, and links from within
// that directory will be incorrect
escFlags = esc_Forced | esc_AlwaysCopy | esc_FileBaseName | esc_Colon | esc_Directory;
}
NS_EscapeURL(loc.get(), loc.Length(), escFlags, locEscaped);
// esc_Directory does not escape the semicolons, so if a filename
// contains semicolons we need to manually escape them.
// This replacement should be removed in bug #473280
locEscaped.ReplaceSubstring(";", "%3b");
nsAdoptingCString htmlEscapedURL(nsEscapeHTML(locEscaped.get()));
pushBuffer.Append(htmlEscapedURL);
pushBuffer.AppendLiteral("\">");
if (type == nsIDirIndex::TYPE_FILE || type == nsIDirIndex::TYPE_UNKNOWN) {
pushBuffer.AppendLiteral("<img src=\"moz-icon://");
int32_t lastDot = locEscaped.RFindChar('.');
if (lastDot != kNotFound) {
locEscaped.Cut(0, lastDot);
nsAdoptingCString htmlFileExt(nsEscapeHTML(locEscaped.get()));
pushBuffer.Append(htmlFileExt);
} else {
pushBuffer.AppendLiteral("unknown");
}
pushBuffer.AppendLiteral("?size=16\" alt=\"");
nsXPIDLString altText;
rv = mBundle->GetStringFromName(MOZ_UTF16("DirFileLabel"),
getter_Copies(altText));
if (NS_FAILED(rv)) return rv;
AppendNonAsciiToNCR(altText, pushBuffer);
pushBuffer.AppendLiteral("\">");
}
pushBuffer.Append(escaped);
pushBuffer.AppendLiteral("</a></td></tr></tbody></table></td>\n <td");
if (type == nsIDirIndex::TYPE_DIRECTORY || type == nsIDirIndex::TYPE_SYMLINK) {
pushBuffer.Append('>');
} else {
int64_t size;
aIndex->GetSize(&size);
if (uint64_t(size) != UINT64_MAX) {
pushBuffer.AppendLiteral(" sortable-data=\"");
pushBuffer.AppendInt(size);
pushBuffer.AppendLiteral("\">");
nsAutoCString sizeString;
FormatSizeString(size, sizeString);
pushBuffer.Append(sizeString);
} else {
pushBuffer.Append('>');
}
}
pushBuffer.AppendLiteral("</td>\n <td");
PRTime t;
aIndex->GetLastModified(&t);
if (t == -1LL) {
pushBuffer.AppendLiteral("></td>\n <td>");
} else {
pushBuffer.AppendLiteral(" sortable-data=\"");
pushBuffer.AppendInt(static_cast<int64_t>(t));
pushBuffer.AppendLiteral("\">");
nsAutoString formatted;
mDateTime->FormatPRTime(nullptr,
kDateFormatShort,
kTimeFormatNone,
t,
formatted);
AppendNonAsciiToNCR(formatted, pushBuffer);
pushBuffer.AppendLiteral("</td>\n <td>");
mDateTime->FormatPRTime(nullptr,
kDateFormatNone,
kTimeFormatSeconds,
t,
formatted);
// use NCR to show date in any doc charset
AppendNonAsciiToNCR(formatted, pushBuffer);
}
pushBuffer.AppendLiteral("</td>\n</tr>");
return SendToListener(aRequest, aCtxt, pushBuffer);
}
nsresult
nsGopherChannel::Init(nsIURI* uri, nsIProxyInfo* proxyInfo)
{
nsresult rv;
nsCOMPtr<nsIURL> url = do_QueryInterface(uri, &rv);
if (NS_FAILED(rv))
return NS_ERROR_MALFORMED_URI;
mUrl = uri;
mProxyInfo = proxyInfo;
nsCAutoString buffer;
rv = url->GetPath(buffer); // unescaped down below
if (NS_FAILED(rv))
return rv;
rv = url->GetAsciiHost(mHost);
if (NS_FAILED(rv))
return rv;
rv = url->GetPort(&mPort);
if (NS_FAILED(rv))
return rv;
// For security reasons, don't allow anything expect the default
// gopher port (70). See bug 71916 - [email protected]
/*
if (mPort==-1)
mPort=GOPHER_PORT;
*/
mPort=GOPHER_PORT;
// No path given
if (buffer[0]=='\0' || (buffer[0]=='/' && buffer[1]=='\0')) {
mType = '1';
mSelector.Truncate();
} else {
mType = buffer[1]; // Ignore leading '/'
// Do it this way in case selector contains embedded nulls after
// unescaping
char* selector = nsCRT::strdup(buffer.get()+2);
PRInt32 count = nsUnescapeCount(selector);
mSelector.Assign(selector,count);
nsCRT::free(selector);
if (mSelector.FindCharInSet(nsCString("\t\n\r\0",4)) != -1) {
// gopher selectors cannot containt tab, cr, lf, or \0
return NS_ERROR_MALFORMED_URI;
}
}
PR_LOG(gGopherLog,
PR_LOG_DEBUG,
("Host: mHost = %s, mPort = %d\n", mHost.get(), mPort));
PR_LOG(gGopherLog,
PR_LOG_DEBUG,
("Status: mType = %c, mSelector = %s\n", mType, mSelector.get()));
return NS_OK;
}
nsresult
nsDirIndexParser::ParseFormat(const char* aFormatStr) {
// Parse a "200" format line, and remember the fields and their
// ordering in mFormat. Multiple 200 lines stomp on each other.
delete[] mFormat;
// Lets find out how many elements we have.
// easier to do this then realloc
const char* pos = aFormatStr;
unsigned int num = 0;
do {
while (*pos && nsCRT::IsAsciiSpace(PRUnichar(*pos)))
++pos;
++num;
// There are a maximum of six allowed header fields (doubled plus
// terminator, just in case) -- Bug 443299
if (num > (2 * NS_ARRAY_LENGTH(gFieldTable)))
return NS_ERROR_UNEXPECTED;
if (! *pos)
break;
while (*pos && !nsCRT::IsAsciiSpace(PRUnichar(*pos)))
++pos;
} while (*pos);
mFormat = new int[num+1];
// Prevent NULL Deref - Bug 443299
if (mFormat == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
mFormat[num] = -1;
int formatNum=0;
do {
while (*aFormatStr && nsCRT::IsAsciiSpace(PRUnichar(*aFormatStr)))
++aFormatStr;
if (! *aFormatStr)
break;
nsCAutoString name;
PRInt32 len = 0;
while (aFormatStr[len] && !nsCRT::IsAsciiSpace(PRUnichar(aFormatStr[len])))
++len;
name.SetCapacity(len + 1);
name.Append(aFormatStr, len);
aFormatStr += len;
// Okay, we're gonna monkey with the nsStr. Bold!
name.SetLength(nsUnescapeCount(name.BeginWriting()));
// All tokens are case-insensitive - http://www.mozilla.org/projects/netlib/dirindexformat.html
if (name.LowerCaseEqualsLiteral("description"))
mHasDescription = PR_TRUE;
for (Field* i = gFieldTable; i->mName; ++i) {
if (name.EqualsIgnoreCase(i->mName)) {
mFormat[formatNum] = i->mType;
++formatNum;
break;
}
}
} while (*aFormatStr);
return NS_OK;
}
NS_IMETHODIMP
nsIndexedToHTML::OnIndexAvailable(nsIRequest *aRequest,
nsISupports *aCtxt,
nsIDirIndex *aIndex) {
nsresult rv;
if (!aIndex)
return NS_ERROR_NULL_POINTER;
nsString pushBuffer;
pushBuffer.AppendLiteral("<tr");
nsXPIDLString description;
aIndex->GetDescription(getter_Copies(description));
if (description.First() == char16_t('.'))
pushBuffer.AppendLiteral(" class=\"hidden-object\"");
pushBuffer.AppendLiteral(">\n <td sortable-data=\"");
// The sort key is the name of the item, prepended by either 0, 1 or 2
// in order to group items.
uint32_t type;
aIndex->GetType(&type);
switch (type) {
case nsIDirIndex::TYPE_SYMLINK:
pushBuffer.AppendInt(0);
break;
case nsIDirIndex::TYPE_DIRECTORY:
pushBuffer.AppendInt(1);
break;
case nsIDirIndex::TYPE_FILE:
case nsIDirIndex::TYPE_UNKNOWN:
pushBuffer.AppendInt(2);
break;
}
char16_t* escaped = nsEscapeHTML2(description.get(), description.Length());
pushBuffer.Append(escaped);
pushBuffer.AppendLiteral("\"><a class=\"");
switch (type) {
case nsIDirIndex::TYPE_DIRECTORY:
pushBuffer.AppendLiteral("dir");
break;
case nsIDirIndex::TYPE_SYMLINK:
pushBuffer.AppendLiteral("symlink");
break;
case nsIDirIndex::TYPE_FILE:
case nsIDirIndex::TYPE_UNKNOWN:
pushBuffer.AppendLiteral("file");
break;
}
pushBuffer.AppendLiteral("\"");
// Truncate long names to not stretch the table
//XXX this should be left to the stylesheet (bug 391471)
nsString escapedShort;
if (description.Length() > 71) {
nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest);
nsCOMPtr<nsIURI> uri;
rv = channel->GetURI(getter_AddRefs(uri));
if (NS_FAILED(rv)) return rv;
//XXX this potentially truncates after a combining char (bug 391472)
nsXPIDLString descriptionAffix;
descriptionAffix.Assign(description);
descriptionAffix.Cut(0, descriptionAffix.Length() - 25);
if (NS_IS_LOW_SURROGATE(descriptionAffix.First()))
descriptionAffix.Cut(0, 1);
description.Truncate(std::min<uint32_t>(71, description.Length() - 28));
if (NS_IS_HIGH_SURROGATE(description.Last()))
description.Truncate(description.Length() - 1);
escapedShort.Adopt(nsEscapeHTML2(description.get(), description.Length()));
escapedShort.Append(mEscapedEllipsis);
// add ZERO WIDTH SPACE (U+200B) for wrapping
escapedShort.AppendLiteral("​");
nsString tmp;
tmp.Adopt(nsEscapeHTML2(descriptionAffix.get(), descriptionAffix.Length()));
escapedShort.Append(tmp);
pushBuffer.AppendLiteral(" title=\"");
pushBuffer.Append(escaped);
pushBuffer.AppendLiteral("\"");
}
if (escapedShort.IsEmpty())
escapedShort.Assign(escaped);
nsMemory::Free(escaped);
pushBuffer.AppendLiteral(" href=\"");
nsXPIDLCString loc;
aIndex->GetLocation(getter_Copies(loc));
nsXPIDLCString encoding;
rv = mParser->GetEncoding(getter_Copies(encoding));
if (NS_FAILED(rv)) return rv;
// Don't byte-to-Unicode conversion here, it is lossy.
loc.SetLength(nsUnescapeCount(loc.BeginWriting()));
// need to escape links
nsAutoCString locEscaped;
// Adding trailing slash helps to recognize whether the URL points to a file
// or a directory (bug #214405).
if ((type == nsIDirIndex::TYPE_DIRECTORY) && (loc.Last() != '/')) {
loc.Append('/');
}
// now minimally re-escape the location...
uint32_t escFlags;
// for some protocols, we expect the location to be absolute.
// if so, and if the location indeed appears to be a valid URI, then go
// ahead and treat it like one.
if (mExpectAbsLoc &&
NS_SUCCEEDED(net_ExtractURLScheme(loc, nullptr, nullptr, nullptr))) {
// escape as absolute
escFlags = esc_Forced | esc_OnlyASCII | esc_AlwaysCopy | esc_Minimal;
}
else {
// escape as relative
// esc_Directory is needed because directories have a trailing slash.
// Without it, the trailing '/' will be escaped, and links from within
// that directory will be incorrect
escFlags = esc_Forced | esc_OnlyASCII | esc_AlwaysCopy | esc_FileBaseName | esc_Colon | esc_Directory;
}
NS_EscapeURL(loc.get(), loc.Length(), escFlags, locEscaped);
// esc_Directory does not escape the semicolons, so if a filename
// contains semicolons we need to manually escape them.
// This replacement should be removed in bug #473280
locEscaped.ReplaceSubstring(";", "%3b");
nsAutoString utf16URI;
if (encoding.EqualsLiteral("UTF-8")) {
// Try to convert non-ASCII bytes to Unicode using UTF-8 decoder.
nsCOMPtr<nsIUnicodeDecoder> decoder =
mozilla::dom::EncodingUtils::DecoderForEncoding("UTF-8");
decoder->SetInputErrorBehavior(nsIUnicodeDecoder::kOnError_Signal);
int32_t len = locEscaped.Length();
int32_t outlen = 0;
rv = decoder->GetMaxLength(locEscaped.get(), len, &outlen);
if (NS_FAILED(rv)) {
return rv;
}
nsAutoArrayPtr<char16_t> outbuf(new char16_t[outlen]);
rv = decoder->Convert(locEscaped.get(), &len, outbuf, &outlen);
// Use the result only if the sequence is valid as UTF-8.
if (rv == NS_OK) {
utf16URI.Append(outbuf, outlen);
}
}
if (utf16URI.IsEmpty()) {
// Escape all non-ASCII bytes to preserve the raw value.
nsAutoCString outstr;
NS_EscapeURL(locEscaped, esc_AlwaysCopy | esc_OnlyNonASCII, outstr);
CopyASCIItoUTF16(outstr, utf16URI);
}
nsString htmlEscapedURL;
htmlEscapedURL.Adopt(nsEscapeHTML2(utf16URI.get(), utf16URI.Length()));
pushBuffer.Append(htmlEscapedURL);
pushBuffer.AppendLiteral("\">");
if (type == nsIDirIndex::TYPE_FILE || type == nsIDirIndex::TYPE_UNKNOWN) {
pushBuffer.AppendLiteral("<img src=\"moz-icon://");
int32_t lastDot = locEscaped.RFindChar('.');
if (lastDot != kNotFound) {
locEscaped.Cut(0, lastDot);
NS_ConvertUTF8toUTF16 utf16LocEscaped(locEscaped);
nsString htmlFileExt;
htmlFileExt.Adopt(nsEscapeHTML2(utf16LocEscaped.get(), utf16LocEscaped.Length()));
pushBuffer.Append(htmlFileExt);
} else {
pushBuffer.AppendLiteral("unknown");
}
pushBuffer.AppendLiteral("?size=16\" alt=\"");
nsXPIDLString altText;
rv = mBundle->GetStringFromName(MOZ_UTF16("DirFileLabel"),
getter_Copies(altText));
if (NS_FAILED(rv)) return rv;
AppendNonAsciiToNCR(altText, pushBuffer);
pushBuffer.AppendLiteral("\">");
}
pushBuffer.Append(escapedShort);
pushBuffer.AppendLiteral("</a></td>\n <td");
if (type == nsIDirIndex::TYPE_DIRECTORY || type == nsIDirIndex::TYPE_SYMLINK) {
pushBuffer.AppendLiteral(">");
} else {
int64_t size;
aIndex->GetSize(&size);
if (uint64_t(size) != UINT64_MAX) {
pushBuffer.AppendLiteral(" sortable-data=\"");
pushBuffer.AppendInt(size);
pushBuffer.AppendLiteral("\">");
nsAutoString sizeString;
FormatSizeString(size, sizeString);
pushBuffer.Append(sizeString);
} else {
pushBuffer.AppendLiteral(">");
}
}
pushBuffer.AppendLiteral("</td>\n <td");
PRTime t;
aIndex->GetLastModified(&t);
if (t == -1) {
pushBuffer.AppendLiteral("></td>\n <td>");
} else {
pushBuffer.AppendLiteral(" sortable-data=\"");
pushBuffer.AppendInt(static_cast<int64_t>(t));
pushBuffer.AppendLiteral("\">");
nsAutoString formatted;
mDateTime->FormatPRTime(nullptr,
kDateFormatShort,
kTimeFormatNone,
t,
formatted);
AppendNonAsciiToNCR(formatted, pushBuffer);
pushBuffer.AppendLiteral("</td>\n <td>");
mDateTime->FormatPRTime(nullptr,
kDateFormatNone,
kTimeFormatSeconds,
t,
formatted);
// use NCR to show date in any doc charset
AppendNonAsciiToNCR(formatted, pushBuffer);
}
pushBuffer.AppendLiteral("</td>\n</tr>");
return FormatInputStream(aRequest, aCtxt, pushBuffer);
}