Add download curl plugin (#14)

8 files changed, 194 insertions, 3 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4f40a08..f3a1bb9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,8 @@ jobs:
           gcovr \
           gi-docgen \
           libpeas-dev \
-          gsettings-desktop-schemas-dev
+          gsettings-desktop-schemas-dev \
+          libcurl4-openssl-dev
     - name: Build setup
       run: meson setup build -Db_coverage=true
     - name: Build
@@ -49,7 +50,8 @@ jobs:
           gcovr \
           gi-docgen \
           libpeas-dev \
-          gsettings-desktop-schemas-dev
+          gsettings-desktop-schemas-dev \
+          libcurl4-openssl-dev
     - name: Build setup
       run: meson setup build -Db_coverage=true -Ddbus=true
     - name: Build
@@ -69,7 +71,7 @@ jobs:
     - name: Setup
       run: |
         pip install meson ninja
-        brew install libsoup icu4c gobject-introspection duktape gcovr gi-docgen libpeas
+        brew install libsoup icu4c gobject-introspection duktape gcovr gi-docgen libpeas curl
         echo 'PKG_CONFIG_PATH=/usr/local/opt/icu4c/lib/pkgconfig:/usr/local/opt/gi-docgen/lib/pkgconfig' >> $GITHUB_ENV
     - name: Build and Test
       run: |
@@ -101,6 +103,7 @@ jobs:
             mingw-w64-x86_64-gi-docgen
             mingw-w64-x86_64-libsoup3
             mingw-w64-x86_64-libpeas
+            mingw-w64-x86_64-curl
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
diff --git a/meson.build b/meson.build
index 27b99ff..0b28bba 100644
--- a/meson.build
+++ b/meson.build
@@ -110,6 +110,7 @@ glib_dep = dependency('glib-2.0', version: '>= 2.71.3')
 gio_dep = dependency('gio-2.0', version: '>= 2.71.3')
 peas_dep = dependency('libpeas-1.0')
 soup_dep = dependency('libsoup-3.0', required: get_option('download-soup'))
+curl_dep = dependency('libcurl', required: get_option('download-curl'))
 ws2_32_dep = cc.find_library('ws2_32', required : with_platform_windows)
 gsettings_desktop_schema = dependency('gsettings-desktop-schemas', required: get_option('config-gnome'))
 
diff --git a/meson_options.txt b/meson_options.txt
index dcd8e5d..f35387a 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -67,3 +67,10 @@ option(
   value: true,
   description: 'Whether to build plugin for downloading with SOUP'
 )
+
+option(
+  'download-curl',
+  type: 'boolean',
+  value: true,
+  description: 'Whether to build plugin for downloading with cURL'
+)
\ No newline at end of file
diff --git a/src/backend/plugins/download-curl/download-curl.c b/src/backend/plugins/download-curl/download-curl.c
new file mode 100644
index 0000000..5a531cb
--- /dev/null
+++ b/src/backend/plugins/download-curl/download-curl.c
@@ -0,0 +1,99 @@
+/* download-curl.c
+ *
+ * Copyright 2022-2023 Jan-Michael Brummer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#include <libpeas/peas.h>
+#include <curl/curl.h>
+
+#include "download-curl.h"
+
+#include "px-plugin-download.h"
+#include "px-manager.h"
+
+static void px_download_iface_init (PxDownloadInterface *iface);
+G_MODULE_EXPORT void peas_register_types (PeasObjectModule *module);
+
+G_DEFINE_FINAL_TYPE_WITH_CODE (PxDownloadCurl,
+                               px_download_curl,
+                               G_TYPE_OBJECT,
+                               G_IMPLEMENT_INTERFACE (PX_TYPE_DOWNLOAD, px_download_iface_init))
+
+static void
+px_download_curl_init (PxDownloadCurl *self)
+{
+  self->curl = curl_easy_init ();
+}
+
+static void
+px_download_curl_class_init (PxDownloadCurlClass *klass)
+{
+}
+
+static size_t
+store_data (void   *contents,
+            size_t  size,
+            size_t  nmemb,
+            void   *user_pointer)
+{
+  GString *string = user_pointer;
+  size_t real_size = size * nmemb;
+
+  g_string_append_len (string, contents, real_size);
+  return real_size;
+}
+
+static GBytes *
+px_download_curl_download (PxDownload *download, const char *uri)
+{
+  PxDownloadCurl *self = PX_DOWNLOAD_CURL (download);
+  g_autoptr (GBytes) bytes = NULL;
+  CURLcode res;
+  g_autoptr (GString) data = g_string_new ("");
+  const char *url = uri;
+
+  if (g_str_has_prefix (url, "pac+"))
+    url += 4;
+
+  curl_easy_setopt (self->curl, CURLOPT_URL, url);
+  curl_easy_setopt (self->curl, CURLOPT_WRITEFUNCTION, store_data);
+  curl_easy_setopt (self->curl, CURLOPT_WRITEDATA, data);
+
+  res = curl_easy_perform (self->curl);
+  if (res != CURLE_OK) {
+    g_warning ("Could not download data: %s", curl_easy_strerror (res));
+    return NULL;
+  }
+
+  return g_steal_pointer (&bytes);
+}
+
+static void
+px_download_iface_init (PxDownloadInterface *iface)
+{
+  iface->download = px_download_curl_download;
+}
+
+G_MODULE_EXPORT void
+peas_register_types (PeasObjectModule *module)
+{
+  peas_object_module_register_extension_type (module,
+                                              PX_TYPE_DOWNLOAD,
+                                              PX_DOWNLOAD_TYPE_CURL);
+}
diff --git a/src/backend/plugins/download-curl/download-curl.h b/src/backend/plugins/download-curl/download-curl.h
new file mode 100644
index 0000000..4b95140
--- /dev/null
+++ b/src/backend/plugins/download-curl/download-curl.h
@@ -0,0 +1,40 @@
+/* download-curl.h
+ *
+ * Copyright 2022-2023 Jan-Michael Brummer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#pragma once
+
+#include <glib.h>
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+#define PX_DOWNLOAD_TYPE_CURL         (px_download_curl_get_type ())
+
+G_DECLARE_FINAL_TYPE (PxDownloadCurl, px_download_curl, PX, DOWNLOAD_CURL, GObject)
+
+struct _PxDownloadCurl {
+  GObject parent_instance;
+  CURL *curl;
+};
+
+G_END_DECLS
+
+
diff --git a/src/backend/plugins/download-curl/download-curl.plugin b/src/backend/plugins/download-curl/download-curl.plugin
new file mode 100644
index 0000000..7aa75d6
--- /dev/null
+++ b/src/backend/plugins/download-curl/download-curl.plugin
@@ -0,0 +1,6 @@
+[Plugin]
+Authors=Jan-Michael Brummer <jan.brummer@tabos.org>
+Copyright=Copyright © 2023 Jan-Michael Brummer
+Description=Donwload data using cURL
+Module=download-curl
+Name=cURL
\ No newline at end of file
diff --git a/src/backend/plugins/download-curl/meson.build b/src/backend/plugins/download-curl/meson.build
new file mode 100644
index 0000000..29da33e
--- /dev/null
+++ b/src/backend/plugins/download-curl/meson.build
@@ -0,0 +1,33 @@
+plugin_name = 'download-curl'
+
+if get_option(plugin_name)
+
+plugin_src = [
+  '@0@.c'.format(plugin_name),
+]
+
+plugin_data = [
+  '@0@.plugin'.format(plugin_name),
+]
+
+plugin_lib = shared_module(
+  plugin_name,
+  sources: plugin_src,
+  include_directories: px_backend_inc,
+  dependencies: [px_backend_dep, curl_dep],
+  install_dir: join_paths(px_plugins_dir, plugin_name),
+  install: true,
+  name_suffix: module_suffix,
+)
+
+# Starting with Meson 0.64 this can be replaced with fs.copyfile
+custom_target(
+  '@0@-data'.format(plugin_name),
+  input: plugin_data,
+  output: plugin_data,
+  command: ['cp', '@INPUT@', '@OUTDIR@'],
+  install_dir: join_paths(px_plugins_dir, plugin_name),
+  install: true,
+)
+
+endif
\ No newline at end of file
diff --git a/src/backend/plugins/meson.build b/src/backend/plugins/meson.build
index 8a14739..d7d7c4c 100644
--- a/src/backend/plugins/meson.build
+++ b/src/backend/plugins/meson.build
@@ -4,6 +4,7 @@ subdir('config-osx')
 subdir('config-sysconfig')
 subdir('config-windows')
 
+subdir('download-curl')
 subdir('download-soup')
 
 subdir('pacrunner-duktape')
@@ -14,6 +15,7 @@ summary({
   'Configuration Windows    ' : get_option('config-windows'),
   'Configuration sysconfig  ' : get_option('config-sysconfig'),
   'Configuration OS X       ' : get_option('config-osx'),
+  'Download cURL            ' : get_option('download-curl'),
   'Download Soup            ' : get_option('download-soup'),
   'PAC Runner Duktape       ' : get_option('pacrunner-duktape'),
 }, section: 'Plugins')
\ No newline at end of file