CryptoMessage v1.3.2版本的 MD5 值为：66c611ce56a11450659dc23697562928

以下内容为反编译后的 StreamOpen.java 源代码，内容仅作参考

package org.jivesoftware.smack.packet;

import org.jivesoftware.smack.util.XmlStringBuilder;

public final class StreamOpen extends AbstractStreamOpen {
    public static final String ELEMENT = "stream:stream";

    public enum StreamContentNamespace {
        client,
        server
    }

    @Override
    public String getElementName() {
        return ELEMENT;
    }

    public StreamOpen(CharSequence charSequence) {
        this(charSequence, null, null, null, StreamContentNamespace.client);
    }

    public StreamOpen(CharSequence charSequence, CharSequence charSequence2, String str) {
        this(charSequence, charSequence2, str, "en", StreamContentNamespace.client);
    }

    public StreamOpen(CharSequence charSequence, CharSequence charSequence2, String str, String str2) {
        super(charSequence, charSequence2, str, str2);
    }

    public StreamOpen(CharSequence charSequence, CharSequence charSequence2, String str, String str2, StreamContentNamespace streamContentNamespace) {
        super(charSequence, charSequence2, str, str2, streamContentNamespace);
    }

    @Override
    public String getNamespace() {
        return this.contentNamespace;
    }

    @Override
    public XmlStringBuilder toXML(XmlEnvironment xmlEnvironment) {
        XmlStringBuilder xmlStringBuilder = new XmlStringBuilder();
        xmlStringBuilder.halfOpenElement(getElementName());
        xmlStringBuilder.attribute("xmlns", xmlEnvironment != null ? xmlEnvironment.getEffectiveNamespaceOrUse("jabber:client") : "jabber:client");
        xmlStringBuilder.attribute("to", this.to);
        xmlStringBuilder.attribute("xmlns:stream", "http://etherx.jabber.org/streams");
        xmlStringBuilder.attribute("version", AbstractStreamOpen.VERSION);
        xmlStringBuilder.optAttribute("from", this.from);
        xmlStringBuilder.optAttribute("id", this.id);
        xmlStringBuilder.xmllangAttribute(this.lang);
        xmlStringBuilder.rightAngleBracket();
        return xmlStringBuilder;
    }
}