Add currently existing PackageKit backend

backend/pkgtools.cc

@@ -0,0 +1,175 @@
+#include <curl/curl.h>
+#include <sqlite3.h>
+#include "pkgtools.h"
+#include "utils.h"
+
+namespace slack {
+
+/**
+ * slack::Pkgtools::download:
+ * @job: A #PkBackendJob.
+ * @dest_dir_name: Destination directory.
+ * @pkg_name: Package name.
+ *
+ * Download a package.
+ *
+ * Returns: %TRUE on success, %FALSE otherwise.
+ **/
+gboolean
+Pkgtools::download (PkBackendJob *job,
+		gchar *dest_dir_name, gchar *pkg_name) noexcept
+{
+	gchar *dest_filename, *source_url;
+	gboolean ret = FALSE;
+	sqlite3_stmt *statement = NULL;
+	CURL *curl = NULL;
+	auto job_data = static_cast<JobData *> (pk_backend_job_get_user_data(job));
+
+	if ((sqlite3_prepare_v2(job_data->db,
+							"SELECT location, (full_name || '.' || ext) FROM pkglist "
+							"WHERE name LIKE @name AND repo_order = @repo_order",
+							-1,
+							&statement,
+							NULL) != SQLITE_OK))
+		return FALSE;
+
+	sqlite3_bind_text(statement, 1, pkg_name, -1, SQLITE_TRANSIENT);
+	sqlite3_bind_int(statement, 2, this->get_order ());
+
+	if (sqlite3_step(statement) == SQLITE_ROW)
+	{
+		dest_filename = g_build_filename(dest_dir_name, sqlite3_column_text(statement, 1), NULL);
+		source_url = g_strconcat(this->get_mirror (),
+								 sqlite3_column_text(statement, 0),
+								 "/",
+								 sqlite3_column_text(statement, 1),
+								 NULL);
+
+		if (!g_file_test(dest_filename, G_FILE_TEST_EXISTS))
+		{
+			if (get_file(&curl, source_url, dest_filename) == CURLE_OK)
+			{
+				ret = TRUE;
+			}
+		}
+		else
+		{
+			ret = TRUE;
+		}
+
+		if (curl)
+		{
+			curl_easy_cleanup(curl);
+		}
+		g_free(source_url);
+		g_free(dest_filename);
+	}
+	sqlite3_finalize(statement);
+
+	return ret;
+}
+
+/**
+ * slack::Pkgtools::install:
+ * @job: A #PkBackendJob.
+ * @pkg_name: Package name.
+ *
+ * Install a package.
+ **/
+void
+Pkgtools::install (PkBackendJob *job, gchar *pkg_name) noexcept
+{
+	gchar *pkg_filename, *cmd_line;
+	sqlite3_stmt *statement = NULL;
+	auto job_data = static_cast<JobData *> (pk_backend_job_get_user_data(job));
+
+	if ((sqlite3_prepare_v2(job_data->db,
+							"SELECT (full_name || '.' || ext) FROM pkglist "
+							"WHERE name LIKE @name AND repo_order = @repo_order",
+							-1,
+							&statement,
+							NULL) != SQLITE_OK))
+	{
+		return;
+	}
+
+	sqlite3_bind_text(statement, 1, pkg_name, -1, SQLITE_TRANSIENT);
+	sqlite3_bind_int(statement, 2, this->get_order ());
+
+	if (sqlite3_step(statement) == SQLITE_ROW)
+	{
+		pkg_filename = g_build_filename(LOCALSTATEDIR,
+								        "cache",
+								        "PackageKit",
+								        "downloads",
+								        sqlite3_column_text(statement, 0),
+								        NULL);
+		cmd_line = g_strconcat("/sbin/upgradepkg --install-new ", pkg_filename, NULL);
+		g_spawn_command_line_sync(cmd_line, NULL, NULL, NULL, NULL);
+		g_free(cmd_line);
+
+		g_free(pkg_filename);
+	}
+	sqlite3_finalize(statement);
+}
+
+Pkgtools::~Pkgtools () noexcept
+{
+}
+
+/**
+ * slack::Pkgtools::get_name:
+ *
+ * Retrieves the repository name.
+ *
+ * Returns: Repository name.
+ **/
+const gchar *
+Pkgtools::get_name () const noexcept
+{
+	return this->name;
+}
+
+/**
+ * slack::Pkgtools::get_mirror:
+ *
+ * Retrieves the repository mirror.
+ *
+ * Returns: Repository mirror.
+ **/
+const gchar *
+Pkgtools::get_mirror () const noexcept
+{
+	return this->mirror;
+}
+
+/**
+ * slack::Pkgtools::get_order:
+ *
+ * Retrieves the repository order.
+ *
+ * Returns: Repository order.
+ **/
+guint8
+Pkgtools::get_order () const noexcept
+{
+	return this->order;
+}
+
+/**
+ * slack::Pkgtools:is_blacklisted:
+ * @pkg: Package name to check for.
+ *
+ * Checks whether a package is blacklisted.
+ *
+ * Returns: %TRUE if the package is blacklisted, %FALSE otherwise.
+ **/
+gboolean
+Pkgtools::is_blacklisted (const gchar *pkg) const noexcept
+{
+	return this->blacklist
+		&& g_regex_match (this->blacklist,
+				pkg, static_cast<GRegexMatchFlags> (0), NULL);
+}
+
+}