a few changes to the infrastructure

* added mode_unknown to the mode_t enumeration
* add to_keyvalues(ostream&) to openid message class
* fixed openid_message_t::set_field for the case of overwriting

Signed-off-by: Michael Krelin <hacker@klever.net>

2 files changed, 20 insertions, 1 deletions

diff --git a/include/opkele/types.h b/include/opkele/types.h
index d5ad258..842a722 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -9,48 +9,49 @@
 #include <ostream>
 #include <vector>
 #include <string>
 #include <map>
 #include <set>
 #include <list>
 #include <opkele/iterator.h>
 #include <opkele/tr1-mem.h>
 
 namespace opkele {
     using std::vector;
     using std::string;
     using std::map;
     using std::ostream;
     using std::multimap;
     using std::set;
     using std::list;
     using std::iterator;
     using std::forward_iterator_tag;
 
     /**
      * the OpenID operation mode
      */
     typedef enum _mode_t {
+	mode_unknown = 0,
 	mode_associate,
 	mode_checkid_immediate,
 	mode_checkid_setup,
 	mode_check_association
     } mode_t;
 
     /**
      * the association secret container
      */
     class secret_t : public vector<unsigned char> {
 	public:
 
 	    /**
 	     * xor the secret and hmac together and encode, using base64
 	     * @param key_d pointer to the message digest
 	     * @param rv reference to the return value
 	     */
 	    void enxor_to_base64(const unsigned char *key_d,string& rv) const;
 	    /**
 	     * decode base64-encoded secret and xor it with the message digest
 	     * @param key_d pointer to the message digest
 	     * @param b64 base64-encoded secret value
 	     */
 	    void enxor_from_base64(const unsigned char *key_d,const string& b64);
@@ -124,48 +125,49 @@ namespace opkele {
 		> fields_iterator;
 
 	    basic_openid_message() { }
 	    basic_openid_message(const basic_openid_message& x);
 	    void copy_to(basic_openid_message& x) const;
 
 	    virtual bool has_field(const string& n) const = 0;
 	    virtual const string& get_field(const string& n) const = 0;
 
 	    virtual bool has_ns(const string& uri) const;
 	    virtual string get_ns(const string& uri) const;
 
 	    virtual fields_iterator fields_begin() const = 0;
 	    virtual fields_iterator fields_end() const = 0;
 
 	    virtual string append_query(const string& url) const;
 	    virtual string query_string() const;
 
 
 	    virtual void reset_fields();
 	    virtual void set_field(const string& n,const string& v);
 	    virtual void reset_field(const string& n);
 
 	    virtual void from_keyvalues(const string& kv);
+	    virtual void to_keyvalues(ostream& o) const;
 
 	    void add_to_signed(const string& fields);
 	    string find_ns(const string& uri,const char *pfx) const;
 	    string allocate_ns(const string& uri,const char *pfx);
     };
 
     class openid_message_t : public basic_openid_message, public map<string,string> {
 	public:
 	    openid_message_t() { }
 	    openid_message_t(const basic_openid_message& x)
 		: basic_openid_message(x) { }
 
 	    void copy_to(basic_openid_message& x) const;
 
 	    bool has_field(const string& n) const;
 	    const string& get_field(const string& n) const;
 	    virtual fields_iterator fields_begin() const;
 	    virtual fields_iterator fields_end() const;
 
 	    void reset_fields();
 	    void set_field(const string& n,const string& v);
 	    void reset_field(const string& n);
     };
 
diff --git a/lib/openid_message.cc b/lib/openid_message.cc
index 3b08748..905ea95 100644
--- a/lib/openid_message.cc
+++ b/lib/openid_message.cc
@@ -121,48 +121,65 @@ namespace opkele {
 		break;
 #ifndef POSTELS_LAW
 	    string::size_type nl = kv.find('\n',co+1);
 	    if(nl==string::npos)
 		throw bad_input(OPKELE_CP_ "malformed input");
 	    if(nl>co)
 		insert(value_type(kv.substr(p,co-p),kv.substr(co+1,nl-co-1)));
 	    p = nl+1;
 #else /* POSTELS_LAW */
 	    string::size_type lb = kv.find_first_of("\r\n",co+1);
 	    if(lb==string::npos) {
 		set_field(kv.substr(p,co-p),kv.substr(co+1));
 		break;
 	    }
 	    if(lb>co)
 		set_field(kv.substr(p,co-p),kv.substr(co+1,lb-co-1));
 	    string::size_type nolb = kv.find_first_not_of("\r\n",lb);
 	    if(nolb==string::npos)
 		break;
 	    p = nolb;
 #endif /* POSTELS_LAW */
 	}
     }
 
+    struct __om_kv_outputter : public unary_function<const string&,void> {
+	public:
+	    const basic_openid_message& om;
+	    ostream& os;
+
+	    __om_kv_outputter(const basic_openid_message& om,ostream& os)
+		: om(om), os(os) { }
+
+	    result_type operator()(argument_type f) {
+		os << f << ':' << om.get_field(f) << '\n';
+	    }
+    };
+
+    void basic_openid_message::to_keyvalues(ostream& o) const {
+	for_each(fields_begin(),fields_end(),__om_kv_outputter(*this,o));
+    }
+
     void basic_openid_message::add_to_signed(const string& fields) {
 	string::size_type fnc = fields.find_first_not_of(",");
 	if(fnc==string::npos)
 	    throw bad_input(OPKELE_CP_ "Trying to add nothing in particular to the list of signed fields");
 	string signeds;
 	try {
 	    signeds = get_field("signed");
 	    string::size_type lnc = signeds.find_last_not_of(",");
 	    if(lnc==string::npos)
 		signeds.assign(fields,fnc,fields.size()-fnc);
 	    else{
 		string::size_type ss = signeds.size();
 		if(lnc==(ss-1)) {
 		    signeds+= ',';
 		    signeds.append(fields,fnc,fields.size()-fnc);
 		}else{
 		    if(lnc<(ss-2))
 			signeds.replace(lnc+2,ss-lnc-2,
 				fields,fnc,fields.size()-fnc);
 		    else
 			signeds.append(fields,fnc,fields.size()-fnc);
 		}
 	    }
 	}catch(failed_lookup&) {
@@ -198,31 +215,31 @@ namespace opkele {
 	    x.set_field(i->first,i->second);
     }
 
     bool openid_message_t::has_field(const string& n) const {
 	return find(n)!=end();
     }
     const string& openid_message_t::get_field(const string& n) const {
 	const_iterator i=find(n);
 	if(i==end())
 	    throw failed_lookup(OPKELE_CP_ n+": no such field");
 	return i->second;
     }
 
     openid_message_t::fields_iterator openid_message_t::fields_begin() const {
 	return util::map_keys_iterator<const_iterator,string,const string&,const string*>(begin(),end());
     }
     openid_message_t::fields_iterator openid_message_t::fields_end() const {
 	return util::map_keys_iterator<const_iterator,string,const string&,const string*>(end(),end());
     }
 
     void openid_message_t::reset_fields() {
 	clear();
     }
     void openid_message_t::set_field(const string& n,const string& v) {
-	insert(value_type(n,v));
+	(*this)[n]=v;
     }
     void openid_message_t::reset_field(const string& n) {
 	erase(n);
     }
 
 }