reinstated prefix handling in query building

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

1 files changed, 11 insertions, 9 deletions

diff --git a/lib/openid_message.cc b/lib/openid_message.cc
index 75e59b3..4b9179b 100644
--- a/lib/openid_message.cc
+++ b/lib/openid_message.cc
@@ -1,271 +1,273 @@
 #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();
 		}
 
 	    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 {
 	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(string& r,const basic_openid_message& m)
-		: om(m), first(true), rv(r) {
+	    __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(string& r,const basic_openid_message& m,const string& u)
-		: om(m), first(true), rv(r) {
+	    __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 += '&';
-		rv += "openid."; rv+= f;
+		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 {
+    string basic_openid_message::append_query(const string& url,const char *pfx) const {
 	string rv;
-	return __om_query_builder(rv,*this,url).rv;
+	return __om_query_builder(pfx,rv,*this,url).rv;
     }
-    string basic_openid_message::query_string() const {
+    string basic_openid_message::query_string(const char *pfx) const {
 	string rv;
-	return __om_query_builder(rv,*this).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)
 		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& m,ostream& s)
 		: om(m), os(s) { }
 
 	    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));
     }
 
     struct __om_html_outputter : public unary_function<const string&,void> {
 	public:
 	    const basic_openid_message& om;
 	    ostream& os;
 	    const char *pfx;
 
 	    __om_html_outputter(const basic_openid_message& m,ostream& s,const char *p=0)
 		: om(m), os(s), pfx(p) { }
 
 	    result_type operator()(argument_type f) {
 		os <<
 		    "<input type=\"hidden\""
 		    " name=\"";
 		if(pfx)
 		    os << util::attr_escape(pfx);
 		os << util::attr_escape(f) << "\""
 		    " value=\"" << util::attr_escape(om.get_field(f)) << "\" />";
 	    }
     };
 
     void basic_openid_message::to_htmlhiddens(ostream& o,const char* pfx) const {
 	for_each(fields_begin(),fields_end(),__om_html_outputter(*this,o,pfx));
     }
 
     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&) {
 	    signeds.assign(fields,fnc,fields.size()-fnc);
 	}
 	set_field("signed",signeds);
     }
 
     string basic_openid_message::find_ns(const string& uri,const char *pfx) const {
 	try {
 	    return get_ns(uri);
 	}catch(failed_lookup&) {
 	    return pfx;
 	}
     }
     string basic_openid_message::allocate_ns(const string& uri,const char *pfx) {
 	if(!has_field("ns"))
 	    return pfx;
 	if(has_ns(uri))
 	    throw bad_input(OPKELE_CP_ "OpenID message already contains namespace");
 	string rv = pfx;
 	if(has_field("ns."+rv)) {
 	    string::reference c=rv[rv.length()];
 	    for(c='a';c<='z' && has_field("ns."+rv);++c);
 	    if(c=='z')
 		throw exception(OPKELE_CP_ "Failed to allocate namespace");
 	}
 	set_field("ns."+rv,uri);
 	return rv;
     }
 
     void openid_message_t::copy_to(basic_openid_message& x) const {
 	x.reset_fields();
 	for(const_iterator i=begin();i!=end();++i)
 	    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) {
 	(*this)[n]=v;
     }
     void openid_message_t::reset_field(const string& n) {
 	erase(n);
     }
 
 }