put Joseph's files into repository

Thanks to Joseph Smarr (now) of Plaxo for contributing these extensions!

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

4 files changed, 356 insertions, 0 deletions

diff --git a/include/opkele/ax.h b/include/opkele/ax.h
new file mode 100644
index 0000000..996d756
--- a/dev/null
+++ b/include/opkele/ax.h
@@ -0,0 +1,84 @@
+#ifndef __OPKELE_AX_H
+#define __OPKELE_AX_H
+
+/**
+ * @file
+ * @brief Attribute Exchange extension
+ */
+
+#include <opkele/extension.h>
+
+namespace opkele {
+
+    /**
+     * OpenID simple registration extension implementation
+     * http://openid.net/specs/openid-simple-registration-extension-1_0.html
+     */
+    class ax_t : public extension_t {
+        public:
+            /** special "count" value for add_attribute to request fetching "as many values as possible". */
+            static const int UNLIMITED_COUNT = -1; 
+
+            /** 
+             * Optional URL for receiving future attribute updates.
+             * Set it before checkid_setup to send up the URL; read it after id_res to get it back.
+             */
+            std::string update_url;
+
+            /**
+             * Consumer constructor.
+             */
+            ax_t() : alias_count(0) { }
+
+            /** Adds an attribute to request during checkid_setup. */
+            void add_attribute(const char *uri, bool required, const char *alias = NULL, int count = 1);
+
+            /** Returns an attribute fetched for the given type-uri during id_res. */
+            std::string get_attribute(const char *uri, int index = 0);
+            /** Returns the number of values fetched for the given type-uri during id_res. */
+            size_t get_attribute_count(const char *uri);
+
+            virtual void rp_checkid_hook(basic_openid_message& om);
+            virtual void rp_id_res_hook(const basic_openid_message& om,
+                    const basic_openid_message& sp);
+            virtual void op_checkid_hook(const basic_openid_message& inm);
+            virtual void op_id_res_hook(basic_openid_message& oum);
+
+            virtual void checkid_hook(basic_openid_message& om);
+            virtual void id_res_hook(const basic_openid_message& om,
+                    const basic_openid_message& sp);
+            virtual void checkid_hook(const basic_openid_message& inm,
+                    basic_openid_message& oum);
+
+            /**
+             * Function called after parsing sreg request to set up response
+             * fields. The default implementation tries to send as much fields
+             * as we have. The function is supposed to set the data and
+             * fields_response.
+             * @see fields_response
+             * @param inm incoming openid message
+             * @param oum outgoing openid message
+             */
+            virtual void setup_response(const basic_openid_message& inm,
+                    basic_openid_message& oum);
+
+            virtual void setup_response();
+
+        protected:
+            /** Stores attributes to request fetching during checkid_setup. */
+            struct ax_attr_t {
+                std::string uri;
+                std::string alias;
+                bool required;
+                int count;
+            };
+            std::vector<ax_attr_t> attrs;
+            unsigned int alias_count; // auto-incr counter for auto-named aliases
+
+            /** Stores results from fetch response during id_res. */
+            std::map<std::string, std::vector<std::string> > response_attrs;
+    };
+}
+
+#endif /* __OPKELE_SREG_H */
+
diff --git a/include/opkele/oauth_ext.h b/include/opkele/oauth_ext.h
new file mode 100644
index 0000000..37a826b
--- a/dev/null
+++ b/include/opkele/oauth_ext.h
@@ -0,0 +1,62 @@
+#ifndef __OPKELE_OAUTH_EXT_H
+#define __OPKELE_OAUTH_EXT_H
+
+/**
+ * @file
+ * @brief OAuth extension
+ */
+
+#include <opkele/extension.h>
+
+namespace opkele {
+
+    /**
+     * OpenID OAuth extension
+     * http://step2.googlecode.com/svn/spec/openid_oauth_extension/latest/openid_oauth_extension.html
+     */
+    class oauth_ext_t : public extension_t {
+        public:
+            std::string m_consumer, m_scope, m_request_token;
+
+            /**
+             * Consumer constructor.
+             * @param fr required fields
+             * @see fields_required
+             * @param fo optional fields
+             * @see fields_optional
+             * @param pu policy url
+             * @see policy_url
+             */
+            oauth_ext_t(const char *consumer = "", const char *scope = "") : m_consumer(consumer), m_scope(scope) { }
+
+            virtual void rp_checkid_hook(basic_openid_message& om);
+            virtual void rp_id_res_hook(const basic_openid_message& om,
+                    const basic_openid_message& sp);
+            virtual void op_checkid_hook(const basic_openid_message& inm);
+            virtual void op_id_res_hook(basic_openid_message& oum);
+
+            virtual void checkid_hook(basic_openid_message& om);
+            virtual void id_res_hook(const basic_openid_message& om,
+                    const basic_openid_message& sp);
+            virtual void checkid_hook(const basic_openid_message& inm,
+                    basic_openid_message& oum);
+
+            /**
+             * Function called after parsing sreg request to set up response
+             * fields. The default implementation tries to send as much fields
+             * as we have. The function is supposed to set the data and
+             * fields_response.
+             * @see fields_response
+             * @param inm incoming openid message
+             * @param oum outgoing openid message
+             */
+            virtual void setup_response(const basic_openid_message& inm,
+                    basic_openid_message& oum);
+
+            virtual void setup_response();
+
+    };
+}
+
+#endif /* __OPKELE_OAUTH_EXT_H */
+
diff --git a/lib/ax.cc b/lib/ax.cc
new file mode 100644
index 0000000..ccdb706
--- a/dev/null
+++ b/lib/ax.cc
@@ -0,0 +1,135 @@
+#include <opkele/exception.h>
+#include <opkele/ax.h>
+#include <opkele/uris.h>
+#include <opkele/util.h>
+
+#include <map>
+#include <string>
+#include <vector>
+
+using namespace std;
+
+namespace opkele {
+
+    void ax_t::add_attribute(const char *uri, bool required, const char *alias /* = NULL */, int count /* = 1 */) {
+        assert(uri && *uri);
+        assert(count != 0);
+
+        ax_attr_t attr;
+        attr.uri = uri;
+        attr.required = required;
+        attr.count = count;
+        // if no alias is specified, generate one using an internal auto-incremented counter
+        attr.alias = alias ? alias : string("attr") + opkele::util::long_to_string(++alias_count);
+        
+        attrs.push_back(attr);
+    }
+
+    void ax_t::rp_checkid_hook(basic_openid_message& om) {
+        if (attrs.size() == 0) return; // not asking for any attributes
+
+        string pfx = om.allocate_ns(OIURI_AX10,"ax");
+        om.set_field(pfx+".mode", "fetch_request"); // only supports fetch_request for now
+
+        string required_fields, optional_fields;
+        for (size_t i = 0; i < attrs.size(); i++) {
+            // build up list of required/optional aliases
+            if (attrs[i].required) required_fields += (required_fields.empty() ? "" : ",") + attrs[i].alias;
+            else optional_fields += (optional_fields.empty() ? "" : ",") + attrs[i].alias;
+
+            om.set_field(pfx+".type."+attrs[i].alias, attrs[i].uri);
+
+            // only specify count if it's >1 or unlimited
+            if (attrs[i].count == UNLIMITED_COUNT) {
+                om.set_field(pfx+".count."+attrs[i].alias, "unlimited");
+            } else if (attrs[i].count > 1) {
+                om.set_field(pfx+".count."+attrs[i].alias, opkele::util::long_to_string(attrs[i].count));
+            }
+        }
+
+        if (!required_fields.empty()) om.set_field(pfx+".required", required_fields);
+        if (!optional_fields.empty()) om.set_field(pfx+".if_available", optional_fields);
+
+        if (!update_url.empty()) om.set_field(pfx+".update_url", update_url);
+    }
+
+    void ax_t::checkid_hook(basic_openid_message& om) {
+        rp_checkid_hook(om); }
+
+    void ax_t::rp_id_res_hook(const basic_openid_message& om,
+            const basic_openid_message& sp) {
+        string pfx;
+        try {
+            pfx = om.find_ns(OIURI_AX10,"ax");
+        }catch(failed_lookup&) {
+                return;
+        }
+        pfx += '.';
+
+        // first look at all aliases and generate an internal uri->alias map
+        string fn;
+        map<string, string> aliases;
+        for (basic_openid_message::fields_iterator it = sp.fields_begin(); it != sp.fields_end(); ++it) {
+            fn = *it;
+            string type_pfx = pfx; type_pfx += "type.";
+            size_t pos = fn.find(type_pfx);
+            if (pos == string::npos) continue;
+            string alias = fn.substr(pos + type_pfx.size());
+            aliases[sp.get_field(fn)] = alias;
+        }
+
+        // now for each alias, pull out the count and value(s) and store uri->[value1, ...]
+        for (map<string, string>::iterator it = aliases.begin(); it != aliases.end(); ++it) {
+            vector<string> values;
+            fn = pfx; fn += "count." + it->second;
+            if (sp.has_field(fn)) {
+                int count = opkele::util::string_to_long(sp.get_field(fn));
+                for (int i = 1; i <= count; i++) {
+                    fn = pfx; fn += "value." + it->second + "." + opkele::util::long_to_string(i);
+                    values.push_back(sp.get_field(fn));
+                }
+            } else {
+                fn = pfx; fn += "value." + it->second;
+                values.push_back(sp.get_field(fn));
+            }
+            response_attrs[it->first] = values;
+        }
+
+        fn = pfx; fn += "update_url";
+        if (sp.has_field(fn)) update_url = sp.get_field(fn);
+    }
+
+    string ax_t::get_attribute(const char *uri, int index /* = 0 */) {
+        if (response_attrs.find(uri) == response_attrs.end()) return "";
+        return response_attrs[uri][index];
+    }
+
+    size_t ax_t::get_attribute_count(const char *uri) {
+        if (response_attrs.find(uri) == response_attrs.end()) return 0;
+        return response_attrs[uri].size();
+    }
+
+    void ax_t::id_res_hook(const basic_openid_message& om,
+            const basic_openid_message& sp) {
+        rp_id_res_hook(om,sp); }
+
+    void ax_t::op_checkid_hook(const basic_openid_message& inm) {
+    }
+
+    void ax_t::op_id_res_hook(basic_openid_message& oum) {
+    }
+
+    void ax_t::checkid_hook(const basic_openid_message& inm,
+            basic_openid_message& oum) {
+        op_checkid_hook(inm);
+        setup_response(inm,oum);
+        op_id_res_hook(oum);
+    }
+
+    void ax_t::setup_response(const basic_openid_message& /* inm */,basic_openid_message& /* oum */) {
+        setup_response();
+    }
+    void ax_t::setup_response() {
+    }
+}
+
diff --git a/lib/oauth_ext.cc b/lib/oauth_ext.cc
new file mode 100644
index 0000000..b728854
--- a/dev/null
+++ b/lib/oauth_ext.cc
@@ -0,0 +1,75 @@
+#include <opkele/exception.h>
+#include <opkele/oauth_ext.h>
+#include <opkele/uris.h>
+#include <algorithm>
+
+namespace opkele {
+    using std::find;
+
+    void oauth_ext_t::rp_checkid_hook(basic_openid_message& om) {
+
+        string pfx = om.allocate_ns(OIURI_OAUTH10,"oauth");
+        //required: openid.oauth.consumer=www.plaxo.com
+        //optional: openid.oauth.scope=http://www.google.com/m8/feeds/
+        if (m_consumer.empty()) throw bad_input(OPKELE_CP_ "Required consumer key is missing from OAuth extension");
+        om.set_field(pfx+".consumer", m_consumer);
+        if (!m_scope.empty())  om.set_field(pfx+".scope", m_scope);
+    }
+
+    void oauth_ext_t::checkid_hook(basic_openid_message& om) {
+        rp_checkid_hook(om); }
+
+    void oauth_ext_t::rp_id_res_hook(const basic_openid_message& om,
+            const basic_openid_message& sp) {
+        string pfx;
+        try {
+            pfx = om.get_ns(OIURI_OAUTH10);
+        }catch(failed_lookup&) {
+                return;
+        }
+        pfx += '.';
+        //required: openid.oauth.request_token=abcdefg
+        //optional: openid.oauth.consumer=www.plaxo.com
+        //optional: openid.oauth.scope=http://www.google.com/m8/feeds/
+        string fn;
+
+        fn = pfx + "request_token";
+        if (sp.has_field(fn)) {
+                m_request_token = sp.get_field(fn);
+        } else throw bad_input(OPKELE_CP_ "Missing required response field: "+fn);
+
+        fn = pfx + "consumer";
+        if (sp.has_field(fn)) {
+                m_consumer = sp.get_field(fn);
+        }
+
+        fn = pfx + "scope";
+        if (sp.has_field(fn)) {
+                m_scope = sp.get_field(fn);
+        } 
+    }
+
+    void oauth_ext_t::id_res_hook(const basic_openid_message& om,
+            const basic_openid_message& sp) {
+        rp_id_res_hook(om,sp); }
+
+    void oauth_ext_t::op_checkid_hook(const basic_openid_message& inm) {
+    }
+
+    void oauth_ext_t::op_id_res_hook(basic_openid_message& oum) {
+    }
+
+    void oauth_ext_t::checkid_hook(const basic_openid_message& inm,
+            basic_openid_message& oum) {
+        op_checkid_hook(inm);
+        setup_response(inm,oum);
+        op_id_res_hook(oum);
+    }
+
+    void oauth_ext_t::setup_response(const basic_openid_message& /* inm */,basic_openid_message& /* oum */) {
+        setup_response();
+    }
+    void oauth_ext_t::setup_response() {
+    }
+}
+