[libgovirt] OvirtProxy: Add additional-header API

[Christophe Fergeau <teuf src gnome org>]

commit 674e2583e7fec1613bd2541456a18be635d1260b
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Fri Feb 6 16:56:23 2015 +0100

    OvirtProxy: Add additional-header API
    
    This will be used to inject headers needed by oVirt for foreign menu
    support.

 govirt/govirt.sym            |    5 +++
 govirt/ovirt-proxy-private.h |    1 +
 govirt/ovirt-proxy.c         |   72 ++++++++++++++++++++++++++++++++++++++++++
 govirt/ovirt-proxy.h         |    3 ++
 4 files changed, 81 insertions(+), 0 deletions(-)
---
diff --git a/govirt/govirt.sym b/govirt/govirt.sym
index 178ab07..bbe9d53 100644
--- a/govirt/govirt.sym
+++ b/govirt/govirt.sym
@@ -107,4 +107,9 @@ GOVIRT_0.3.2 {
         ovirt_resource_delete_finish;
 } GOVIRT_0.3.1;
 
+GOVIRT_0.3.3 {
+        ovirt_proxy_add_header;
+        ovirt_proxy_add_headers;
+        ovirt_proxy_add_headers_from_valist;
+} GOVIRT_0.3.2;
 # .... define new API here using predicted next version number ....
diff --git a/govirt/ovirt-proxy-private.h b/govirt/ovirt-proxy-private.h
index b9cc153..18ef6e9 100644
--- a/govirt/ovirt-proxy-private.h
+++ b/govirt/ovirt-proxy-private.h
@@ -38,6 +38,7 @@ struct _OvirtProxyPrivate {
     OvirtApi *api;
     char *jsessionid;
     SoupCookieJar *cookie_jar;
+    GHashTable *additional_headers;
 
     gulong ssl_ca_file_changed_id;
 };
diff --git a/govirt/ovirt-proxy.c b/govirt/ovirt-proxy.c
index f1b88cb..85b2038 100644
--- a/govirt/ovirt-proxy.c
+++ b/govirt/ovirt-proxy.c
@@ -766,6 +766,9 @@ ovirt_proxy_dispose(GObject *obj)
         proxy->priv->cookie_jar = NULL;
     }
 
+    g_warn_if_fail(proxy->priv->additional_headers != NULL);
+    g_hash_table_unref(proxy->priv->additional_headers);
+
     G_OBJECT_CLASS(ovirt_proxy_parent_class)->dispose(obj);
 }
 
@@ -839,6 +842,10 @@ ovirt_proxy_init(OvirtProxy *self)
     self->priv->cookie_jar = soup_cookie_jar_new();
     rest_proxy_add_soup_feature(REST_PROXY(self),
                                 SOUP_SESSION_FEATURE(self->priv->cookie_jar));
+    self->priv->additional_headers = g_hash_table_new_full(g_str_hash,
+                                                           g_str_equal,
+                                                           g_free,
+                                                           g_free);
 }
 
 /* FIXME : "uri" should just be a base domain, foo.example.com/some/path
@@ -898,6 +905,71 @@ OvirtProxy *ovirt_proxy_new(const char *hostname)
 }
 
 
+/**
+ * ovirt_proxy_add_header:
+ * @proxy: a #OvirtProxy
+ * @header: name of the header to add to each request
+ * @value: value of the header to add to each request
+ *
+ * Add a http header called @header with the value @value to each oVirt REST
+ * API call. If a header with this name already exists, the new value will
+ * replace the old.
+ */
+void ovirt_proxy_add_header(OvirtProxy *proxy, const char *header, const char *value)
+{
+    g_return_if_fail(OVIRT_IS_PROXY(proxy));
+
+    g_hash_table_replace(proxy->priv->additional_headers,
+                         (char *)g_strdup(header),
+                         (char *)g_strdup(value));
+}
+
+
+/**
+ * ovirt_proxy_add_headers:
+ * @proxy: a #OvirtProxy
+ * @...: header name and value pairs, followed by %NULL
+ *
+ * Add the specified http header and value pairs to @proxy. These headers will
+ * be sent with each oVirt REST API call. If a header already exists, the new
+ * value will replace the old.
+ */
+void ovirt_proxy_add_headers(OvirtProxy *proxy, ...)
+{
+    va_list headers;
+
+    g_return_if_fail(OVIRT_IS_PROXY(proxy));
+
+    va_start(headers, proxy);
+    ovirt_proxy_add_headers_from_valist(proxy, headers);
+    va_end(headers);
+}
+
+
+/**
+ * ovirt_proxy_add_headers_from_valist:
+ * @proxy: a #OvirtProxy
+ * @headers: header name and value pairs
+ *
+ * Add the specified http header and value pairs to @proxy. These headers will
+ * be sent with each oVirt REST API call. If a header already exists, the new
+ * value will replace the old.
+ */
+void ovirt_proxy_add_headers_from_valist(OvirtProxy *proxy, va_list headers)
+{
+    const char *header = NULL;
+    const char *value;
+
+    g_return_if_fail(OVIRT_IS_PROXY(proxy));
+
+    header = va_arg(headers, const char *);
+    while (header != NULL) {
+        value = va_arg(headers, const char *);
+        ovirt_proxy_add_header(proxy, header, value);
+        header = va_arg(headers, const char *);
+    }
+}
+
 static void ovirt_proxy_set_api_from_xml(OvirtProxy *proxy,
                                          RestXmlNode *node,
                                          GError **error)
diff --git a/govirt/ovirt-proxy.h b/govirt/ovirt-proxy.h
index d011209..71fa4e0 100644
--- a/govirt/ovirt-proxy.h
+++ b/govirt/ovirt-proxy.h
@@ -66,6 +66,9 @@ struct _OvirtProxyClass {
 GType ovirt_proxy_get_type(void);
 
 OvirtProxy *ovirt_proxy_new(const char *host);
+void ovirt_proxy_add_header(OvirtProxy *proxy, const char *header, const char *value);
+void ovirt_proxy_add_headers(OvirtProxy *proxy, ...);
+void ovirt_proxy_add_headers_from_valist(OvirtProxy *proxy, va_list headers);
 
 G_DEPRECATED_FOR(ovirt_collection_lookup_resource)
 OvirtVm *ovirt_proxy_lookup_vm(OvirtProxy *proxy, const char *vm_name);