public String processAttachmentsReferences(
long userId, KBArticle kbArticle, ZipReader zipReader, Map<String, FileEntry> fileEntriesMap)
throws PortalException {
Set<Integer> indexes = new TreeSet<>();
int index = 0;
while ((index = _html.indexOf("<img", index)) > -1) {
indexes.add(index);
index += 4;
}
if (indexes.isEmpty()) {
return _html;
}
StringBundler sb = new StringBundler();
int previousIndex = 0;
for (int curIndex : indexes) {
if (curIndex < 0) {
break;
}
if (curIndex > previousIndex) {
// Append text from previous position up to image tag
String text = _html.substring(previousIndex, curIndex);
sb.append(text);
}
int pos = _html.indexOf("/>", curIndex);
if (pos < 0) {
if (_log.isDebugEnabled()) {
_log.debug("Expected close tag for image " + _html.substring(curIndex));
}
sb.append(_html.substring(curIndex));
previousIndex = curIndex;
break;
}
String text = _html.substring(curIndex, pos);
String imageFileName = KBArticleImporterUtil.extractImageFileName(text);
FileEntry imageFileEntry =
KBArticleImporterUtil.addImageFileEntry(
imageFileName, userId, kbArticle, zipReader, fileEntriesMap);
if (imageFileEntry == null) {
if (_log.isWarnEnabled()) {
_log.warn("Unable to find image source " + text);
}
sb.append("<img alt=\"missing image\" src=\"\" ");
} else {
String imageSrc = StringPool.BLANK;
try {
imageSrc =
DLUtil.getPreviewURL(
imageFileEntry, imageFileEntry.getFileVersion(), null, StringPool.BLANK);
} catch (PortalException pe) {
if (_log.isWarnEnabled()) {
_log.warn(
"Unable to obtain image URL from file entry " + imageFileEntry.getFileEntryId());
}
}
sb.append("<img alt=\"");
sb.append(HtmlUtil.escapeAttribute(imageFileEntry.getTitle()));
sb.append("\" src=\"");
sb.append(imageSrc);
sb.append("\" ");
}
previousIndex = pos;
}
if (previousIndex < _html.length()) {
sb.append(_html.substring(previousIndex));
}
return sb.toString();
}
