NS_IMETHODIMP
nsIndexedToHTML::OnStopRequest(nsIRequest* request, nsISupports *aContext,
                               nsresult aStatus) {
    if (NS_SUCCEEDED(aStatus)) {
        nsString buffer;
        buffer.AssignLiteral("</tbody></table></body></html>\n");

        aStatus = FormatInputStream(request, aContext, buffer);
    }

    mParser->OnStopRequest(request, aContext, aStatus);
    mParser = 0;
    
    return mListener->OnStopRequest(request, aContext, aStatus);
}
NS_IMETHODIMP
nsIndexedToHTML::OnInformationAvailable(nsIRequest *aRequest,
                                        nsISupports *aCtxt,
                                        const nsAString& aInfo) {
    nsAutoString pushBuffer;
    PRUnichar* escaped = nsEscapeHTML2(PromiseFlatString(aInfo).get());
    if (!escaped)
        return NS_ERROR_OUT_OF_MEMORY;
    pushBuffer.AppendLiteral("<tr>\n <td>");
    pushBuffer.Append(escaped);
    nsMemory::Free(escaped);
    pushBuffer.AppendLiteral("</td>\n <td></td>\n <td></td>\n <td></td>\n</tr>\n");
    
    return FormatInputStream(aRequest, aCtxt, pushBuffer);
}
NS_IMETHODIMP
nsIndexedToHTML::OnStartRequest(nsIRequest* request, nsISupports *aContext) {
    nsString buffer;
    nsresult rv = DoOnStartRequest(request, aContext, buffer);
    if (NS_FAILED(rv)) {
        request->Cancel(rv);
    }
    
    rv = mListener->OnStartRequest(request, aContext);
    if (NS_FAILED(rv)) return rv;

    // The request may have been canceled, and if that happens, we want to
    // suppress calls to OnDataAvailable.
    request->GetStatus(&rv);
    if (NS_FAILED(rv)) return rv;

    // Push our buffer to the listener.

    rv = FormatInputStream(request, aContext, buffer);
    return rv;
}
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() == PRUnichar('.'))
        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.
    PRUint32 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;
    }
    PRUnichar* 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(NS_MIN<PRUint32>(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("&#8203;");
        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));

    if (!mTextToSubURI) {
        mTextToSubURI = do_GetService(NS_ITEXTTOSUBURI_CONTRACTID, &rv);
        if (NS_FAILED(rv)) return rv;
    }

    nsXPIDLCString encoding;
    rv = mParser->GetEncoding(getter_Copies(encoding));
    if (NS_FAILED(rv)) return rv;

    nsXPIDLString unEscapeSpec;
    rv = mTextToSubURI->UnEscapeAndConvert(encoding, loc,
                                           getter_Copies(unEscapeSpec));
    if (NS_FAILED(rv)) return rv;

    // need to escape links
    nsCAutoString escapeBuf;

    NS_ConvertUTF16toUTF8 utf8UnEscapeSpec(unEscapeSpec);

    // Adding trailing slash helps to recognize whether the URL points to a file
    // or a directory (bug #214405).
    if ((type == nsIDirIndex::TYPE_DIRECTORY) &&
        (utf8UnEscapeSpec.Last() != '/')) {
        utf8UnEscapeSpec.Append('/');
    }

    // now minimally re-escape the location...
    PRUint32 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(utf8UnEscapeSpec, nsnull, nsnull, nsnull))) {
        // 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(utf8UnEscapeSpec.get(), utf8UnEscapeSpec.Length(), escFlags, escapeBuf);
    // 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
    escapeBuf.ReplaceSubstring(";", "%3b");
    NS_ConvertUTF8toUTF16 utf16URI(escapeBuf);
    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://");
        PRInt32 lastDot = escapeBuf.RFindChar('.');
        if (lastDot != kNotFound) {
            escapeBuf.Cut(0, lastDot);
            NS_ConvertUTF8toUTF16 utf16EscapeBuf(escapeBuf);
            nsString htmlFileExt;
            htmlFileExt.Adopt(nsEscapeHTML2(utf16EscapeBuf.get(), utf16EscapeBuf.Length()));
            pushBuffer.Append(htmlFileExt);
        } else {
            pushBuffer.AppendLiteral("unknown");
        }
        pushBuffer.AppendLiteral("?size=16\" alt=\"");

        nsXPIDLString altText;
        rv = mBundle->GetStringFromName(NS_LITERAL_STRING("DirFileLabel").get(),
                                        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 {
        PRInt64 size;
        aIndex->GetSize(&size);

        if (PRUint64(size) != LL_MAXUINT) {
            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(t);
        pushBuffer.AppendLiteral("\">");
        nsAutoString formatted;
        mDateTime->FormatPRTime(nsnull,
                                kDateFormatShort,
                                kTimeFormatNone,
                                t,
                                formatted);
        AppendNonAsciiToNCR(formatted, pushBuffer);
        pushBuffer.AppendLiteral("</td>\n <td>");
        mDateTime->FormatPRTime(nsnull,
                                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);
}
Example #5
0
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("&#8203;");
        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);
}