added append_to() to basic_openid_message

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

2 files changed, 7 insertions, 3 deletions

diff --git a/include/opkele/types.h b/include/opkele/types.h
index af7fb1a..ffb9afb 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -36,192 +36,193 @@ namespace opkele {
 	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);
 	    /**
 	     * plainly encode to base64 representation
 	     * @param rv reference to the return value
 	     */
 	    void to_base64(string& rv) const;
 	    /**
 	     * decode cleartext secret from base64
 	     * @param b64 base64-encoded representation of the secret value
 	     */
 	    void from_base64(const string& b64);
     };
 
     /**
      * Interface to the association.
      */
     class association_t {
 	public:
 
 	    virtual ~association_t() { }
 
 	    /**
 	     * retrieve the server with which association was established.
 	     * @return server name
 	     */
 	    virtual string server() const = 0;
 	    /**
 	     * retrieve the association handle.
 	     * @return handle
 	     */
 	    virtual string handle() const = 0;
 	    /**
 	     * retrieve the association type.
 	     * @return association type
 	     */
 	    virtual string assoc_type() const = 0;
 	    /**
 	     * retrieve the association secret.
 	     * @return association secret
 	     */
 	    virtual secret_t secret() const = 0; 
 	    /**
 	     * retrieve the number of seconds the association expires in.
 	     * @return seconds till expiration
 	     */
 	    virtual int expires_in() const = 0;
 	    /**
 	     * check whether the association is stateless.
 	     * @return true if stateless
 	     */
 	    virtual bool stateless() const = 0;
 	    /**
 	     * check whether the association is expired.
 	     * @return true if expired
 	     */
 	    virtual bool is_expired() const = 0;
     };
 
     /**
      * the shared_ptr<> for association_t object type
      */
     typedef tr1mem::shared_ptr<association_t> assoc_t;
 
     class basic_openid_message {
 	public:
 	    typedef list<string> fields_t;
 	    typedef util::forward_iterator_proxy<
 		string,const string&,const string*
 		> fields_iterator;
 
 	    basic_openid_message() { }
 	    virtual ~basic_openid_message() { }
 	    basic_openid_message(const basic_openid_message& x);
 	    void copy_to(basic_openid_message& x) const;
+	    void append_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 char *pfx="openid.") const;
 	    virtual string query_string(const char *pfx="openid.") 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;
 
 	    virtual void to_htmlhiddens(ostream& o,const char* pfx=0) 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);
     };
 
     /**
      * request/response parameters map
      */
     class params_t : public openid_message_t {
 	public:
 
 	    /**
 	     * check whether the parameter is present.
 	     * @param n the parameter name
 	     * @return true if yes
 	     */
 	    bool has_param(const string& n) const {
 		return has_field(n); }
 	    /**
 	     * retrieve the parameter (const version)
 	     * @param n the parameter name
 	     * @return the parameter value
 	     * @throw failed_lookup if there is no such parameter
 	     */
 	    const string& get_param(const string& n) const {
 		return get_field(n); }
 
 	    /**
 	     * parse the OpenID key/value data.
 	     * @param kv the OpenID key/value data
 	     */
 	    void parse_keyvalues(const string& kv) {
 		from_keyvalues(kv); }
 
 	    string append_query(const string& url,const char *prefix="openid.") const;
 
     };
 
     struct openid_endpoint_t {
 	string uri;
 	string claimed_id;
 	string local_id;
 
 	openid_endpoint_t() { }
 	openid_endpoint_t(const string& u,const string& cid,const string& lid)
 	    : uri(u), claimed_id(cid), local_id(lid) { }
 
 	bool operator==(const openid_endpoint_t& x) const {
 	    return uri==x.uri && local_id==x.local_id; }
 	bool operator<(const openid_endpoint_t& x) const {
 	    int c;
 	    return (c=strcmp(uri.c_str(),x.uri.c_str()))
 		? (c<0) : (strcmp(local_id.c_str(),x.local_id.c_str())<0); }
     };
 
diff --git a/lib/openid_message.cc b/lib/openid_message.cc
index 4b9179b..e244f43 100644
--- a/lib/openid_message.cc
+++ b/lib/openid_message.cc
@@ -1,126 +1,129 @@
 #include <cassert>
 #include <opkele/types.h>
 #include <opkele/exception.h>
 #include <opkele/util.h>
 #include <opkele/debug.h>
 
 #include "config.h"
 
 namespace opkele {
     using std::input_iterator_tag;
     using std::unary_function;
 
     struct __om_copier : public unary_function<const string&,void> {
 	public:
 	    const basic_openid_message& from;
 	    basic_openid_message& to;
 
 	    __om_copier(basic_openid_message& t,const basic_openid_message& f)
-		: from(f), to(t) {
-		    to.reset_fields();
-		}
+		: from(f), to(t) { }
 
 	    result_type operator()(argument_type f) {
 		to.set_field(f,from.get_field(f)); }
     };
 
     basic_openid_message::basic_openid_message(const basic_openid_message& x) {
 	x.copy_to(*this);
     }
     void basic_openid_message::copy_to(basic_openid_message& x) const {
+	x.reset_fields();
+	for_each(fields_begin(),fields_end(),
+		__om_copier(x,*this) );
+    }
+    void basic_openid_message::append_to(basic_openid_message& x) const {
 	for_each(fields_begin(),fields_end(),
 		__om_copier(x,*this) );
     }
 
     struct __om_ns_finder : public unary_function<const string&,bool> {
 	public:
 	    const basic_openid_message& om;
 	    const string& uri;
 
 	    __om_ns_finder(const basic_openid_message& m,
 		    const string& u) : om(m), uri(u) { }
 
 	    result_type operator()(argument_type f) {
 		return
 		    (!strncmp(f.c_str(),"ns.",sizeof("ns.")-1))
 			&& om.get_field(f)==uri ;
 	    }
     };
 
     bool basic_openid_message::has_ns(const string& uri) const {
 	fields_iterator ei = fields_end();
 	fields_iterator i = find_if(fields_begin(),fields_end(),
 		__om_ns_finder(*this,uri));
 	return !(i==ei);
     }
     string basic_openid_message::get_ns(const string& uri) const {
 	fields_iterator ei = fields_end();
 	fields_iterator i = find_if(fields_begin(),fields_end(),
 		__om_ns_finder(*this,uri));
 	if(i==ei)
 	    throw failed_lookup(OPKELE_CP_ string("failed to find namespace ")+uri);
 	return i->substr(3);
     }
 
     struct __om_query_builder : public unary_function<const string&,void> {
 	public:
 	    const basic_openid_message& om;
 	    bool first;
 	    string& rv;
 	    const char *pfx;
 
 	    __om_query_builder(const char *p,string& r,const basic_openid_message& m)
 		: om(m), first(true), rv(r), pfx(p) {
 		    for_each(om.fields_begin(),om.fields_end(),*this);
 		}
 	    __om_query_builder(const char *p,string& r,const basic_openid_message& m,const string& u)
 		: om(m), first(true), rv(r), pfx(p) {
 		    rv = u;
 		    if(rv.find('?')==string::npos)
 			rv += '?';
 		    else
 			first = false;
 		    for_each(om.fields_begin(),om.fields_end(),*this);
 		}
 
 	    result_type operator()(argument_type f) {
 		if(first)
 		    first = false;
 		else
 		    rv += '&';
 		if(pfx) rv += pfx;
 		rv+= f;
 		rv += '=';
 		rv += util::url_encode(om.get_field(f));
 	    }
     };
 
     string basic_openid_message::append_query(const string& url,const char *pfx) const {
 	string rv;
 	return __om_query_builder(pfx,rv,*this,url).rv;
     }
     string basic_openid_message::query_string(const char *pfx) const {
 	string rv;
 	return __om_query_builder(pfx,rv,*this).rv;
     }
 
     void basic_openid_message::reset_fields() {
 	throw not_implemented(OPKELE_CP_ "reset_fields() not implemented");
     }
     void basic_openid_message::set_field(const string&,const string&) {
 	throw not_implemented(OPKELE_CP_ "set_field() not implemented");
     }
     void basic_openid_message::reset_field(const string&) {
 	throw not_implemented(OPKELE_CP_ "reset_field() not implemented");
     }
 
     void basic_openid_message::from_keyvalues(const string& kv) {
 	reset_fields();
 	string::size_type p = 0;
 	while(true) {
 	    string::size_type co = kv.find(':',p);
 	    if(co==string::npos)
 		break;
 #ifndef POSTELS_LAW
 	    string::size_type nl = kv.find('\n',co+1);
 	    if(nl==string::npos)