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Code Issues Packages Projects Releases Wiki Activity

Limit text size / number of links

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M66B
2019-08-20 20:05:11 +02:00
parent 77440f7181
commit 18c77ed9c6
2 changed files with 14 additions and 3 deletions
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16
app/src/main/java/eu/faircode/email/HtmlHelper.java
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@@ -74,9 +74,11 @@ import static androidx.core.text.HtmlCompat.FROM_HTML_SEPARATOR_LINE_BREAK_LIST_
import static androidx.core.text.HtmlCompat.TO_HTML_PARAGRAPH_LINES_CONSECUTIVE;
public class HtmlHelper {
static final int PREVIEW_SIZE = 250;
static final int PREVIEW_SIZE = 250; // characters
private static final int TRACKING_PIXEL_SURFACE = 25;
private static final int MAX_LINKS = 50;
private static final int MAX_SIZE = 50 * 1024; // characters
private static final int TRACKING_PIXEL_SURFACE = 25; // pixels
private static final List<String> heads = Collections.unmodifiableList(Arrays.asList(
"h1", "h2", "h3", "h4", "h5", "h6", "p", "ol", "ul", "table", "br", "hr"));
@@ -124,6 +126,10 @@ public class HtmlHelper {
}
}
int links = parsed.select("a").size();
if (links > MAX_LINKS || parsed.text().length() > MAX_SIZE)
return "<strong>" + context.getString(R.string.title_hint_too_complex) + "</strong>";
Whitelist whitelist = Whitelist.relaxed()
.addTags("hr", "abbr")
.removeTags("col", "colgroup", "thead", "tbody")
@@ -266,6 +272,8 @@ public class HtmlHelper {
PatternsCompat.AUTOLINK_WEB_URL.pattern());
NodeTraversor.traverse(new NodeVisitor() {
private int alinks = links;
@Override
public void head(Node node, int depth) {
if (node instanceof TextNode) {
@@ -294,7 +302,7 @@ public class HtmlHelper {
" " + matcher.start() + "..." + matcher.end() + "/" + text.length() +
" linked=" + linked + " email=" + email);
if (linked)
if (linked || alinks >= MAX_LINKS)
span.appendText(text.substring(pos, matcher.end()));
else {
span.appendText(text.substring(pos, matcher.start()));
@@ -303,6 +311,8 @@ public class HtmlHelper {
a.attr("href", (email ? "mailto:" : "") + matcher.group());
a.text(matcher.group());
span.appendChild(a);
alinks++;
}
pos = matcher.end();