$ curl ACCOUNT_MESSAGE_HEADERS_URL?accountName=$accountname&sessionKeyHash=$keyhash
<xs:element name="headers">
  <xs:complexType>
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" name="header_entry">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="subject" type="string"/>
          </xs:sequence>
          <xs:attribute name="id" type="integer"/>
          <xs:attribute name="priority" type="integer"/>
          <xs:attribute name="opened" type="integer"/>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>
</xs:element>
<!--
  <headers>
    <header_entry id="0" priority="0" opened="0">
      <subject>HeaderSubject 1</subject>
    </header_entry>
    <header_entry id="1" priority="0" opened="1">
      <subject>HeaderSubject 2</subject>
    </header_entry>
  </headers>
-->

$ curl ACCOUNT_MESSAGE_BODY_NO_READ_URL?accountName=$accountname&sessionKeyHash=$keyhash&messageId=$id
<xs:element name="body" type="xs:string"/>
<!--
  <body>Body</body>
-->

$ curl ACCOUNT_MESSAGE_READ_URL?accountName=$accountname&sessionKeyHash=$keyhash&messageId=$id


sessionKeyHash:
static const short hash_constant = 0x7A0B;
SHA1_Init(&sha_context);
SHA1_Update(&sha_context, ClientServices::Connection()->GetSessionKey(), 40);
SHA1_Update(&sha_context, &hash_constant, sizeof (hash_constant));
SHA1_Final(keyhash, &sha_context);


local files:
SFile::DisableSFileCheckDisk(); and SFile::EnableDirectAccess(0); ->
nop(); and SFile::EnableDirectAccess(-1);.

framexml/gluexml:
 FrameXML_CheckSignature() return 3;
           FrameXML_CreateFrames("Interface\\GlueXML\\GlueXML.toc", 0, &md5_ctx, &this._);
          MD5Final(md5_result, &md5_ctx);
          if ( !strncmp((const char *)md5_a, (const char *)md5_result, 16) )
          -> if (true)
            if ( SFile::FileExistsEx("Interface\\FrameXML\\Bindings.xml", 1) )
    CGUIBindings::Load(*CGUIBindings::s_bindings, "Interface\\FrameXML\\Bindings.xml", &md5_ctx, &status);
  MD5Final(md5_result, &md5_ctx);
  if ( strncmp(&v45, (const char *)md5_result, 16) )
    ClientPostClose(10);
     -> if(false)