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Fixed MimeUtility.getHeaderParameter() to not crash on unexpected input

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This commit is contained in:
cketti 2012-03-12 17:45:34 +01:00
parent 561d2a1a44
commit aeb0220e56
1 changed files with 10 additions and 6 deletions
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12
src/com/fsck/k9/mail/internet/MimeUtility.java
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@ -953,19 +953,23 @@ public class MimeUtility {
} }
header = header.replaceAll("\r|\n", ""); header = header.replaceAll("\r|\n", "");
String[] parts = header.split(";"); String[] parts = header.split(";");
if (name == null) { if (name == null && parts.length > 0) {
return parts[0]; return parts[0];
} }
for (String part : parts) { for (String part : parts) {
if (part.trim().toLowerCase(Locale.US).startsWith(name.toLowerCase(Locale.US))) { if (part.trim().toLowerCase(Locale.US).startsWith(name.toLowerCase(Locale.US))) {
String parameter = part.split("=", 2)[1].trim(); String[] partParts = part.split("=", 2);
if (parameter.startsWith("\"") && parameter.endsWith("\"")) { if (partParts.length == 2) {
return parameter.substring(1, parameter.length() - 1); String parameter = partParts[1].trim();
int len = parameter.length();
if (len >= 2 && parameter.startsWith("\"") && parameter.endsWith("\"")) {
return parameter.substring(1, len - 1);
} else { } else {
return parameter; return parameter;
} }
} }
} }
}
return null; return null;
} }