Fixed nai; it no longer returns an unowned string
[moonshot-ui.git] / src / moonshot-id.vala
index ec0866c..522a820 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011-2014, JANET(UK)
+ * Copyright (c) 2011-2016, JANET(UK)
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 
 using Gee;
 
+extern char* get_cert_valid_before(uchar* inbuf, int inlen, char* outbuf, int outlen);
+
+
+// A TrustAnchor object can be imported or installed via the API, but cannot
+// be modified by the user, other than being cleared. Hence the fields are read-only.
 public class TrustAnchor : Object
 {
-    public string ca_cert {get; set; default = "";}
-    public string subject {get; set; default = "";}
-    public string subject_alt  {get; set; default = "";}
-    public string server_cert  {get; set; default = "";}
+    private static const string CERT_HEADER = "-----BEGIN CERTIFICATE-----";
+    private static const string CERT_FOOTER = "-----END CERTIFICATE-----";
+
+    public enum TrustAnchorType {
+        CA_CERT,
+        SERVER_CERT
+    }
+    private string _ca_cert = "";
+    private string _subject = "";
+    private string _subject_alt = "";
+    private string _server_cert = "";
+    private string _datetime_added = "";
+    public bool user_verified = false;
+
+    private static string fixup (string s) {
+        return (s == null ? "" : s.strip());
+    }
+
+    public TrustAnchor(string ca_cert, string server_cert, string subject, string subject_alt, bool user_verified) {
+        _ca_cert = fixup(ca_cert);
+        _server_cert = fixup(server_cert);
+        _subject = fixup(subject);
+        _subject_alt = fixup(subject_alt);
+        this.user_verified = user_verified;
+
+        // If we're reading from store, this will be overridden (see set_datetime_added)
+        _datetime_added = "";
+    }
+
+    public TrustAnchor.empty() {
+    }
+
+
+    public string ca_cert {
+        get {
+            return _ca_cert;
+        }
+    }
+
+    public string subject {
+        get {
+            return _subject;
+        }
+    }
+
+    public string subject_alt  {
+        get {
+            return _subject_alt;
+        }
+    }
+
+
+    public string server_cert {
+        get {
+            return _server_cert;
+        }
+    }
+
+    public string datetime_added {
+        get {
+            return _datetime_added;
+        }
+    }
+
+    public bool is_empty() {
+        return ca_cert == "" && subject == "" && subject_alt == "" && server_cert == "";
+    }
+
+    public TrustAnchorType get_anchor_type() {
+        return server_cert == "" ? TrustAnchorType.CA_CERT : TrustAnchorType.SERVER_CERT;
+    }
+
+    internal void set_datetime_added(string datetime) {
+        _datetime_added = fixup(datetime);
+    }
+
+    internal static string format_datetime_now() {
+        DateTime now = new DateTime.now_utc();
+        string dt = now.format("%b %d %T %Y %Z");
+        return dt;
+    }
+
     public int Compare(TrustAnchor other)
     {
-        if (this.ca_cert != other.ca_cert)
+        if (this.ca_cert != other.ca_cert) {
+            // IdCard.logger.trace("TrustAnchor.Compare: this.ca_cert='%s'; other.ca_cert='%s'".printf(this.ca_cert, other.ca_cert));
             return 1;
-        if (this.subject != other.subject)
+        }
+        if (this.subject != other.subject) {
+            // IdCard.logger.trace("TrustAnchor.Compare: this.subject='%s'; other.subject='%s'".printf(this.subject, other.subject));
             return 1;
-        if (this.subject_alt != other.subject_alt)
+        }
+        if (this.subject_alt != other.subject_alt) {
+            // IdCard.logger.trace("TrustAnchor.Compare: this.subject_alt='%s'; other.subject_alt='%s'".printf(this.subject_alt, other.subject_alt));
             return 1;
-        if (this.server_cert != other.server_cert)
+        }
+        if (this.server_cert != other.server_cert) {
+            // IdCard.logger.trace("TrustAnchor.Compare: this.server_cert=%s'; other.server_cert='%s'".printf(this.server_cert, other.server_cert));
             return 1;
+        }
+
+        // Do not compare the user_verified and datetime_added fields; they are not essential.
+
         return 0;
     }
+
+    public string? get_expiration_date(out string? err_out=null)
+    {
+        if (this.ca_cert == "") {
+            if (&err_out != null) {
+                err_out = "Trust anchor does not have a ca_certificate";
+                return null;
+            }
+        }
+
+        string cert = this.ca_cert;
+        cert.chomp();
+
+        uchar[] binary = Base64.decode(cert);
+        IdCard.logger.trace("get_expiration_date: encoded length=%d; decoded length=%d".printf(cert.length, binary.length));
+
+        char buf[64];
+        string err = (string) get_cert_valid_before(binary, binary.length, buf, 64);
+        if (err != "") {
+            IdCard.logger.error(@"get_expiration_date: get_cert_valid_before returned '$err'");
+            if (&err_out != null) {
+                err_out = err;
+            }
+            return null;
+        }
+            
+        string date = (string) buf;
+        IdCard.logger.trace(@"get_expiration_date: get_cert_valid_before returned '$date'");
+
+        return date;
+    }
 }
 
+
 public struct Rule
 {
     public string pattern;
@@ -67,15 +194,39 @@ public struct Rule
 
 public class IdCard : Object
 {
-    static MoonshotLogger logger = get_logger("IdCard");
+    internal static MoonshotLogger logger = get_logger("IdCard");
 
     public const string NO_IDENTITY = "No Identity";
 
-    private string _nai;
-  
+    private string _username = "";
+    private string _issuer = "";
+
     public string display_name { get; set; default = ""; }
   
-    public string username { get; set; default = ""; }
+    public string username { 
+        public get {
+            return _username;
+        }
+        public set {
+            _username = value;
+            update_nai();
+        }
+    }
+
+    public string issuer { 
+        public get {
+            return _issuer;
+        }
+        public set {
+            _issuer = value;
+            update_nai();
+        }
+    }
+
+    private void update_nai() {
+        _nai = username + "@" + issuer;
+    }
+
 #if GNOME_KEYRING
     private unowned string _password;
     public string password {
@@ -95,8 +246,6 @@ public class IdCard : Object
     public string password { get; set; default = null; }
 #endif
 
-    public string issuer { get; set; default = ""; }
-  
     private Rule[] _rules = new Rule[0];
     public Rule[] rules {
         get {return _rules;}
@@ -159,9 +308,23 @@ public class IdCard : Object
 
     public bool temporary {get; set; default = false; }
 
-    public TrustAnchor trust_anchor  { get; set; default = new TrustAnchor (); }
+    private TrustAnchor _trust_anchor = new TrustAnchor.empty();
+    public TrustAnchor trust_anchor  { 
+        get {
+            return _trust_anchor;
+        }
+    }
+
+    // For use by storage implementations.
+    internal void set_trust_anchor_from_store(TrustAnchor ta) {
+        _trust_anchor = ta;
+    }
+
+    internal void clear_trust_anchor() {
+        _trust_anchor = new TrustAnchor.empty();
+    }
   
-    public unowned string nai { get {  _nai = username + "@" + issuer; return _nai;}}
+    public string nai { public get; private set;}
 
     public bool store_password { get; set; default = false; }
 
@@ -205,6 +368,9 @@ public class IdCard : Object
             diff |= 1 << DiffFlags.TRUST_ANCHOR;
 
         // stdout.printf("Diff Flags: %x\n", diff);
+        if (this.display_name == other.display_name && diff != 0) {
+            logger.trace("Compare: Two IDs with display_name '%s', but diff_flags=%0x".printf(this.display_name, diff));
+        }
         return diff;
     }