boinc/client/current_version.cpp

136 lines
4.2 KiB
C++

// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2010 University of California
//
// BOINC 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 3 of the License, or (at your option) any later version.
//
// BOINC 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 BOINC. If not, see <http://www.gnu.org/licenses/>.
// Stuff related to the mechanism where the client fetches
// http://boinc.berkeley.edu/download.php?xml=1
// every so often to see if there's a newer client version
#include "filesys.h"
#include "client_msgs.h"
#include "client_state.h"
#include "log_flags.h"
#include "current_version.h"
int GET_CURRENT_VERSION_OP::do_rpc() {
int retval;
retval = gui_http->do_rpc(
this, config.client_version_check_url.c_str(),
GET_CURRENT_VERSION_FILENAME,
true
);
if (retval) {
error_num = retval;
} else {
error_num = ERR_IN_PROGRESS;
}
return retval;
}
static bool is_version_newer(const char* p) {
int maj=0, min=0, rel=0;
sscanf(p, "%d.%d.%d", &maj, &min, &rel);
if (maj > gstate.core_client_version.major) return true;
if (maj < gstate.core_client_version.major) return false;
if (min > gstate.core_client_version.minor) return true;
if (min < gstate.core_client_version.minor) return false;
if (rel > gstate.core_client_version.release) return true;
return false;
}
// Parse the output of download.php?xml=1.
// If there is a newer version for our primary platform,
// copy it to new_version and return true.
//
static bool parse_version(FILE* f, char* new_version) {
char buf[256], buf2[256];
bool same_platform = false, newer_version_exists = false;
while (fgets(buf, 256, f)) {
if (match_tag(buf, "</version>")) {
return (same_platform && newer_version_exists);
}
if (parse_str(buf, "<dbplatform>", buf2, sizeof(buf2))) {
same_platform = (strcmp(buf2, gstate.get_primary_platform())==0);
}
if (parse_str(buf, "<version_num>", buf2, sizeof(buf2))) {
newer_version_exists = is_version_newer(buf2);
strcpy(new_version, buf2);
}
}
return false;
}
static void show_newer_version_msg() {
msg_printf_notice(0, true,
"http://boinc.berkeley.edu/manager_links.php?target=notice&controlid=download",
"%s <a href=%s>%s</a>",
_("A new version of BOINC is available."),
config.client_download_url.c_str(),
_("Download it.")
);
}
void GET_CURRENT_VERSION_OP::handle_reply(int http_op_retval) {
char buf[256], new_version[256];
if (http_op_retval) {
error_num = http_op_retval;
return;
}
gstate.new_version_check_time = gstate.now;
FILE* f = boinc_fopen(GET_CURRENT_VERSION_FILENAME, "r");
if (!f) return;
while (fgets(buf, 256, f)) {
if (match_tag(buf, "<version>")) {
if (parse_version(f, new_version)) {
show_newer_version_msg();
gstate.newer_version = string(new_version);
break;
}
}
}
fclose(f);
}
// called at startup to see if the client state file
// says there's a new version
//
void newer_version_startup_check() {
if (!gstate.newer_version.empty()) {
if (is_version_newer(gstate.newer_version.c_str())) {
show_newer_version_msg();
} else {
gstate.newer_version = "";
}
}
}
#define NEW_VERSION_CHECK_PERIOD (14*86400)
void CLIENT_STATE::new_version_check() {
if ((new_version_check_time == 0) ||
(now - new_version_check_time > NEW_VERSION_CHECK_PERIOD)) {
// get_current_version_op.handle_reply()
// updates new_version_check_time
//
get_current_version_op.do_rpc();
}
}