private Cleaner.ElementMeta CreateSafeElement(iText.StyledXmlParser.Jsoup.Nodes.Element sourceEl) { String sourceTag = sourceEl.TagName(); Attributes destAttrs = new Attributes(); iText.StyledXmlParser.Jsoup.Nodes.Element dest = new iText.StyledXmlParser.Jsoup.Nodes.Element(iText.StyledXmlParser.Jsoup.Parser.Tag .ValueOf(sourceTag), sourceEl.BaseUri(), destAttrs); int numDiscarded = 0; Attributes sourceAttrs = sourceEl.Attributes(); foreach (iText.StyledXmlParser.Jsoup.Nodes.Attribute sourceAttr in sourceAttrs) { if (whitelist.IsSafeAttribute(sourceTag, sourceEl, sourceAttr)) { destAttrs.Put(sourceAttr); } else { numDiscarded++; } } Attributes enforcedAttrs = whitelist.GetEnforcedAttributes(sourceTag); destAttrs.AddAll(enforcedAttrs); return(new Cleaner.ElementMeta(dest, numDiscarded)); }
/** Add the SHA1 of every file to the manifest, creating it if necessary. */ private static Manifest addDigestsToManifest(JarFile jar) { Manifest input = jar.Manifest; Manifest output = new Manifest(); Attributes main = output.MainAttributes; if (input != null) { main.AddAll(input.MainAttributes); } else { main.Add("Manifest-Version", "1.0"); main.Add("Created-By", "1.0 (Android SignApk)"); } byte[] buffer = new byte[4096]; int num; IEnumerable <JarEntry> jes; if (input == null) { jes = jar.OrderBy(j => j.Name); } else { var entries = jar.ToDictionary(j => j.Name); var sortedEntries = new List <JarEntry>(); foreach (var entry in input.Entries) { sortedEntries.Add(entries[entry.Key]); } jes = sortedEntries; } foreach (JarEntry entry in jes) { HashAlgorithm md = HashAlgorithm.Create("SHA1"); String name = entry.Name; if (!entry.IsDirectory && !name.Equals(JarFile.MANIFEST_NAME) && !name.Equals(CERT_SF_NAME) && !name.Equals(CERT_RSA_NAME) && !name.Equals(OTACERT_NAME) && (stripPattern == null || !stripPattern.IsMatch(name))) { Stream data = jar.GetInputStream(entry); while ((num = data.Read(buffer, 0, buffer.Length)) > 0) { md.TransformBlock(buffer, 0, num, null, 0); } md.TransformFinalBlock(buffer, 0, 0); Attributes attr = null; if (input != null) { attr = input.GetAttributes(name); } attr = attr != null ? new Attributes(attr) : new Attributes(); attr.Add("SHA1-Digest", Convert.ToBase64String(md.Hash)); output.Entries.Add(name, attr); } } return(output); }