[geocode-glib/pgriffis/libsoup3: 3/4] lib: Add support for libsoup3 through a compile-time option

[Bastien Nocera <hadess src gnome org>]

commit aab9d79aff2424ad5ee74a86c8b51166cb6dc4dd
Author: Daniel Kolesa <dkolesa igalia com>
Date:   Tue Mar 23 17:13:35 2021 +0100

    lib: Add support for libsoup3 through a compile-time option
    
    Make it possible to build the library against either libsoup2 or
    libsoup3.

 geocode-glib/geocode-glib.c                 | 16 ++++--
 geocode-glib/geocode-nominatim.c            | 76 +++++++++++++++++++++++++++++
 geocode-glib/meson.build                    | 12 +++--
 geocode-glib/tests/geocode-nominatim-test.c | 13 ++++-
 meson_options.txt                           |  3 ++
 5 files changed, 111 insertions(+), 9 deletions(-)
---
diff --git a/geocode-glib/geocode-glib.c b/geocode-glib/geocode-glib.c
index 3b21cd2..8687fec 100644
--- a/geocode-glib/geocode-glib.c
+++ b/geocode-glib/geocode-glib.c
@@ -66,7 +66,7 @@ _geocode_glib_build_soup_session (const gchar *user_agent_override)
 
        g_debug ("%s: user_agent = %s", G_STRFUNC, user_agent);
 
-       return soup_session_new_with_options (SOUP_SESSION_USER_AGENT,
+       return soup_session_new_with_options ("user-agent",
                                              user_agent, NULL);
 }
 
@@ -75,7 +75,11 @@ _geocode_glib_cache_path_for_query (SoupMessage *query)
 {
        const char *filename;
        char *path;
-        SoupURI *soup_uri;
+#if SOUP_CHECK_VERSION (2, 99, 2)
+       GUri *muri;
+#else
+       SoupURI *muri;
+#endif
        char *uri;
        GChecksum *sum;
 
@@ -91,8 +95,12 @@ _geocode_glib_cache_path_for_query (SoupMessage *query)
        g_free (path);
 
        /* Create path for query */
-       soup_uri = soup_message_get_uri (query);
-       uri = soup_uri_to_string (soup_uri, FALSE);
+       muri = soup_message_get_uri (query);
+#if SOUP_CHECK_VERSION (2, 99, 2)
+       uri = g_uri_to_string_partial (muri, G_URI_HIDE_PASSWORD);
+#else
+       uri = soup_uri_to_string (muri, FALSE);
+#endif
 
        sum = g_checksum_new (G_CHECKSUM_SHA256);
        g_checksum_update (sum, (const guchar *) uri, strlen (uri));
diff --git a/geocode-glib/geocode-nominatim.c b/geocode-glib/geocode-nominatim.c
index fc333dc..344610e 100644
--- a/geocode-glib/geocode-nominatim.c
+++ b/geocode-glib/geocode-nominatim.c
@@ -875,6 +875,43 @@ geocode_nominatim_query_finish (GeocodeNominatim  *self,
        return g_task_propagate_pointer (G_TASK (res), error);
 }
 
+#if SOUP_CHECK_VERSION (2, 99, 2)
+static void
+on_query_data_loaded (GObject      *object,
+                      GAsyncResult *result,
+                      gpointer      user_data)
+{
+       SoupSession *session = SOUP_SESSION (object);
+       SoupMessage *query = soup_session_get_async_result_message (session, result);
+       GError *error = NULL;
+       GBytes *body = soup_session_send_and_read_finish (session, result, &error);
+       GTask *task = user_data;
+       char *contents;
+
+       if (!body) {
+               g_task_return_new_error (task,
+                                        G_IO_ERROR,
+                                        G_IO_ERROR_FAILED,
+                                        "%s",
+                                        error->message);
+               g_clear_error (&error);
+       } else if (soup_message_get_status (query) != SOUP_STATUS_OK) {
+               const char *reason_phrase = soup_message_get_reason_phrase (query);
+               g_bytes_unref (body);
+               g_task_return_new_error (task,
+                                        G_IO_ERROR,
+                                        G_IO_ERROR_FAILED,
+                                        "%s",
+                                        reason_phrase ? reason_phrase : "Query failed");
+       } else {
+               contents = g_bytes_unref_to_data (body, NULL);
+               _geocode_glib_cache_save (query, contents);
+               g_task_return_pointer (task, contents, g_free);
+       }
+
+       g_object_unref (task);
+}
+#else
 static void
 on_query_data_loaded (SoupSession *session,
                       SoupMessage *query,
@@ -896,6 +933,7 @@ on_query_data_loaded (SoupSession *session,
 
        g_object_unref (task);
 }
+#endif
 
 static void
 on_cache_data_loaded (GFile        *cache,
@@ -922,10 +960,19 @@ on_cache_data_loaded (GFile        *cache,
        }
 
        soup_session = _geocode_glib_build_soup_session (priv->user_agent);
+#if SOUP_CHECK_VERSION (2, 99, 2)
+       soup_session_send_and_read_async (soup_session,
+                                         g_task_get_task_data (task),
+                                         G_PRIORITY_DEFAULT,
+                                         NULL,
+                                         on_query_data_loaded,
+                                         task);
+#else
        soup_session_queue_message (soup_session,
                                    g_object_ref (g_task_get_task_data (task)),
                                    (SoupSessionCallback) on_query_data_loaded,
                                    task);
+#endif
        g_object_unref (soup_session);
 }
 
@@ -966,10 +1013,19 @@ geocode_nominatim_query_async (GeocodeNominatim    *self,
        }
 
        soup_session = _geocode_glib_build_soup_session (priv->user_agent);
+#if SOUP_CHECK_VERSION (2, 99, 2)
+       soup_session_send_and_read_async (soup_session,
+                                         soup_query,
+                                         G_PRIORITY_DEFAULT,
+                                         NULL,
+                                         on_query_data_loaded,
+                                         task);
+#else
        soup_session_queue_message (soup_session,
                                    g_object_ref (soup_query),
                                    (SoupSessionCallback) on_query_data_loaded,
                                    task);
+#endif
        g_object_unref (soup_session);
 }
 
@@ -995,6 +1051,25 @@ geocode_nominatim_query (GeocodeNominatim  *self,
        soup_query = soup_message_new (SOUP_METHOD_GET, uri);
 
        if (_geocode_glib_cache_load (soup_query, &contents) == FALSE) {
+#if SOUP_CHECK_VERSION (2, 99, 2)
+               GError *serror = NULL;
+               GBytes *body = soup_session_send_and_read (soup_session, soup_query, NULL, &serror);
+               if (!body) {
+                       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+                                            serror->message);
+                       g_clear_error (&serror);
+                       contents = NULL;
+               } else if (soup_message_get_status (soup_query) != SOUP_STATUS_OK) {
+                       const char *reason_phrase = soup_message_get_reason_phrase (soup_query);
+                       g_bytes_unref (body);
+                       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+                                            reason_phrase ? reason_phrase : "Query failed");
+                       contents = NULL;
+               } else {
+                       contents = g_bytes_unref_to_data (body, NULL);
+                       _geocode_glib_cache_save (soup_query, contents);
+               }
+#else
                if (soup_session_send_message (soup_session, soup_query) != SOUP_STATUS_OK) {
                        g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                                             soup_query->reason_phrase ? soup_query->reason_phrase : "Query 
failed");
@@ -1003,6 +1078,7 @@ geocode_nominatim_query (GeocodeNominatim  *self,
                        contents = g_strndup (soup_query->response_body->data, 
soup_query->response_body->length);
                        _geocode_glib_cache_save (soup_query, contents);
                }
+#endif
        }
 
        g_object_unref (soup_query);
diff --git a/geocode-glib/meson.build b/geocode-glib/meson.build
index 561da9d..940dc7b 100644
--- a/geocode-glib/meson.build
+++ b/geocode-glib/meson.build
@@ -33,9 +33,15 @@ public_sources = [ 'geocode-location.c',
 
 sources = public_sources + [ 'geocode-glib-private.h' ]
 
+if get_option('soup2')
+  soup_dep = dependency('libsoup-2.4', version: '>= 2.42')
+else
+  soup_dep = dependency('libsoup-3.0', version: '>= 2.99.2')
+endif
+
 deps = [ dependency('gio-2.0', version: '>= 2.34'),
-                dependency('json-glib-1.0', version: '>= 0.99.2'),
-                dependency('libsoup-2.4', version: '>= 2.42') ]
+         dependency('json-glib-1.0', version: '>= 0.99.2'),
+         soup_dep ]
 libm = cc.find_library('m', required: false)
 if libm.found()
     deps += [ libm ]
@@ -105,7 +111,7 @@ if gir.found() and enable_gir
                      includes: [ 'GObject-2.0',
                                  'Gio-2.0',
                                  'Json-1.0',
-                                 'Soup-2.4' ],
+                                 get_option('soup2') ? 'Soup-2.4' : 'Soup-3.0' ],
                      install: true,
                      extra_args: gir_args)
 endif
diff --git a/geocode-glib/tests/geocode-nominatim-test.c b/geocode-glib/tests/geocode-nominatim-test.c
index d185ff1..698b9f9 100644
--- a/geocode-glib/tests/geocode-nominatim-test.c
+++ b/geocode-glib/tests/geocode-nominatim-test.c
@@ -129,15 +129,24 @@ common_get_response (GeocodeNominatim  *self,
                      GError           **error)
 {
        CacheItem *item;
-       SoupURI *parsed_uri = NULL;
        GHashTable *parameters = NULL;
 
        /* Parse the URI to get its query parameters. */
-       parsed_uri = soup_uri_new (uri);
+#if SOUP_CHECK_VERSION (2, 99, 2)
+       GUri *parsed_uri = g_uri_parse (uri, SOUP_HTTP_URI_FLAGS, NULL);
+#else
+       SoupURI *parsed_uri = soup_uri_new (uri);
+#endif
+
        g_assert_nonnull (parsed_uri);
 
+#if SOUP_CHECK_VERSION (2, 99, 2)
+       parameters = soup_form_decode (g_uri_get_query (parsed_uri));
+       g_uri_unref (parsed_uri);
+#else
        parameters = soup_form_decode (soup_uri_get_query (parsed_uri));
        soup_uri_free (parsed_uri);
+#endif
 
        {
                GHashTableIter iter;
diff --git a/meson_options.txt b/meson_options.txt
index 0cb674a..62b713d 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -7,3 +7,6 @@ option('enable-introspection',
 option('enable-gtk-doc',
        type: 'boolean', value: true,
        description: 'Whether to generate the API reference for Geocode-GLib')
+option('soup2',
+       type: 'boolean', value: true,
+       description: 'Whether to build with libsoup2')