/*
- Copyright (C) 2019-2020 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2019-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+
#include "lib/compose.hpp"
#include "lib/cross.h"
#include "lib/dcpomatic_log.h"
#include "lib/exceptions.h"
#include "lib/ext.h"
#include "lib/file_log.h"
+#include "lib/state.h"
#include "lib/nanomsg.h"
+#include "lib/util.h"
#include "lib/version.h"
-#include "lib/warnings.h"
+#include <dcp/warnings.h>
#ifdef DCPOMATIC_POSIX
#include <sys/ioctl.h>
extern "C" {
#include <lwext4/file_dev.h>
}
+#include <unistd.h>
#include <xpc/xpc.h>
#endif
}
#endif
-DCPOMATIC_DISABLE_WARNINGS
+LIBDCP_DISABLE_WARNINGS
#include <glibmm.h>
-DCPOMATIC_ENABLE_WARNINGS
+LIBDCP_ENABLE_WARNINGS
#include <unistd.h>
#include <sys/types.h>
#include <boost/filesystem.hpp>
#include <boost/algorithm/string.hpp>
-#include <boost/foreach.hpp>
#include <iostream>
+
using std::cin;
using std::min;
using std::string;
#ifdef DCPOMATIC_LINUX
-static PolkitAuthority* polkit_authority = 0;
+static PolkitAuthority* polkit_authority = nullptr;
#endif
-static Nanomsg* nanomsg = 0;
+static Nanomsg* nanomsg = nullptr;
-struct Parameters
-{
- boost::filesystem::path dcp_path;
- std::string device;
- std::string posix_partition;
-};
#ifdef DCPOMATIC_LINUX
-static
void
polkit_callback (GObject *, GAsyncResult* res, gpointer data)
{
- Parameters* parameters = reinterpret_cast<Parameters*> (data);
- PolkitAuthorizationResult* result = polkit_authority_check_authorization_finish (polkit_authority, res, 0);
- if (result && polkit_authorization_result_get_is_authorized(result)) {
- dcpomatic::write (parameters->dcp_path, parameters->device, parameters->posix_partition, nanomsg);
+ auto parameters = reinterpret_cast<std::pair<std::function<void ()>, std::function<void ()>>*> (data);
+ GError* error = nullptr;
+ auto result = polkit_authority_check_authorization_finish (polkit_authority, res, &error);
+ bool failed = false;
+
+ if (error) {
+ LOG_DISK("polkit authority check failed (check_authorization_finish failed with %1)", error->message);
+ failed = true;
+ } else {
+ if (polkit_authorization_result_get_is_authorized(result)) {
+ parameters->first();
+ } else {
+ failed = true;
+ if (polkit_authorization_result_get_is_challenge(result)) {
+ LOG_DISK_NC("polkit authority check failed (challenge)");
+ } else {
+ LOG_DISK_NC("polkit authority check failed (not authorized)");
+ }
+ }
+ }
+
+ if (failed) {
+ parameters->second();
}
+
delete parameters;
+
if (result) {
g_object_unref (result);
}
#endif
+#ifdef DCPOMATIC_LINUX
+void request_privileges (string action, std::function<void ()> granted, std::function<void ()> denied)
+#else
+void request_privileges (string, std::function<void ()> granted, std::function<void ()>)
+#endif
+{
+#ifdef DCPOMATIC_LINUX
+ polkit_authority = polkit_authority_get_sync (0, 0);
+ auto subject = polkit_unix_process_new_for_owner (getppid(), 0, -1);
+
+ auto parameters = new std::pair<std::function<void ()>, std::function<void ()>>(granted, denied);
+ polkit_authority_check_authorization (
+ polkit_authority, subject, action.c_str(), 0, POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, 0, polkit_callback, parameters
+ );
+#else
+ granted ();
+#endif
+}
+
+
bool
idle ()
try
{
using namespace boost::algorithm;
- optional<string> s = nanomsg->receive (0);
+ auto s = nanomsg->receive (0);
if (!s) {
return true;
}
if (*s == DISK_WRITER_QUIT) {
exit (EXIT_SUCCESS);
} else if (*s == DISK_WRITER_PING) {
- nanomsg->send(DISK_WRITER_PONG "\n", LONG_TIMEOUT);
+ DiskWriterBackEndResponse::pong().write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
} else if (*s == DISK_WRITER_UNMOUNT) {
- /* XXX: should do Linux polkit stuff here */
- optional<string> xml_head = nanomsg->receive (LONG_TIMEOUT);
- optional<string> xml_body = nanomsg->receive (LONG_TIMEOUT);
+ auto xml_head = nanomsg->receive (LONG_TIMEOUT);
+ auto xml_body = nanomsg->receive (LONG_TIMEOUT);
if (!xml_head || !xml_body) {
LOG_DISK_NC("Failed to receive unmount request");
throw CommunicationFailedError ();
}
- bool const success = Drive(*xml_head + *xml_body).unmount();
- if (!nanomsg->send (success ? (DISK_WRITER_OK "\n") : (DISK_WRITER_ERROR "\n"), LONG_TIMEOUT)) {
- LOG_DISK_NC("CommunicationFailedError in unmount_finished");
- throw CommunicationFailedError ();
- }
+ auto xml = *xml_head + *xml_body;
+ request_privileges (
+ "com.dcpomatic.write-drive",
+ [xml]() {
+ bool const success = Drive(xml).unmount();
+ bool sent_reply = false;
+ if (success) {
+ sent_reply = DiskWriterBackEndResponse::ok().write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
+ } else {
+ sent_reply = DiskWriterBackEndResponse::error("Could not unmount drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
+ }
+ if (!sent_reply) {
+ LOG_DISK_NC("CommunicationFailedError in unmount_finished");
+ throw CommunicationFailedError ();
+ }
+ },
+ []() {
+ if (!DiskWriterBackEndResponse::error("Could not get permission to unmount drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT)) {
+ LOG_DISK_NC("CommunicationFailedError in unmount_finished");
+ throw CommunicationFailedError ();
+ }
+ });
} else if (*s == DISK_WRITER_WRITE) {
- optional<string> dcp_path = nanomsg->receive (LONG_TIMEOUT);
- optional<string> device = nanomsg->receive (LONG_TIMEOUT);
- if (!dcp_path || !device) {
+ auto device_opt = nanomsg->receive (LONG_TIMEOUT);
+ if (!device_opt) {
LOG_DISK_NC("Failed to receive write request");
throw CommunicationFailedError();
}
+ auto device = *device_opt;
+
+ vector<boost::filesystem::path> dcp_paths;
+ while (true) {
+ auto dcp_path_opt = nanomsg->receive (LONG_TIMEOUT);
+ if (!dcp_path_opt) {
+ LOG_DISK_NC("Failed to receive write request");
+ throw CommunicationFailedError();
+ }
+ if (*dcp_path_opt != "") {
+ dcp_paths.push_back(*dcp_path_opt);
+ } else {
+ break;
+ }
+ }
/* Do some basic sanity checks; this is a bit belt-and-braces but it can't hurt... */
#ifdef DCPOMATIC_OSX
- if (!starts_with(*device, "/dev/disk")) {
- LOG_DISK ("Will not write to %1", *device);
- nanomsg->send(DISK_WRITER_ERROR "\nRefusing to write to this drive\n1\n", LONG_TIMEOUT);
+ if (!starts_with(device, "/dev/disk")) {
+ LOG_DISK ("Will not write to %1", device);
+ DiskWriterBackEndResponse::error("Refusing to write to this drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
return true;
}
#endif
#ifdef DCPOMATIC_LINUX
- if (!starts_with(*device, "/dev/sd") && !starts_with(*device, "/dev/hd")) {
- LOG_DISK ("Will not write to %1", *device);
- nanomsg->send(DISK_WRITER_ERROR "\nRefusing to write to this drive\n1\n", LONG_TIMEOUT);
+ if (!starts_with(device, "/dev/sd") && !starts_with(device, "/dev/hd")) {
+ LOG_DISK ("Will not write to %1", device);
+ DiskWriterBackEndResponse::error("Refusing to write to this drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
return true;
}
#endif
#ifdef DCPOMATIC_WINDOWS
- if (!starts_with(*device, "\\\\.\\PHYSICALDRIVE")) {
- LOG_DISK ("Will not write to %1", *device);
- nanomsg->send(DISK_WRITER_ERROR "\nRefusing to write to this drive\n1\n", LONG_TIMEOUT);
+ if (!starts_with(device, "\\\\.\\PHYSICALDRIVE")) {
+ LOG_DISK ("Will not write to %1", device);
+ DiskWriterBackEndResponse::error("Refusing to write to this drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
return true;
}
#endif
bool on_drive_list = false;
bool mounted = false;
for (auto const& i: Drive::get()) {
- if (i.device() == *device) {
+ if (i.device() == device) {
on_drive_list = true;
mounted = i.mounted();
}
}
if (!on_drive_list) {
- LOG_DISK ("Will not write to %1 as it's not recognised as a drive", *device);
- nanomsg->send(DISK_WRITER_ERROR "\nRefusing to write to this drive\n1\n", LONG_TIMEOUT);
+ LOG_DISK ("Will not write to %1 as it's not recognised as a drive", device);
+ DiskWriterBackEndResponse::error("Refusing to write to this drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
return true;
}
if (mounted) {
- LOG_DISK ("Will not write to %1 as it's mounted", *device);
- nanomsg->send(DISK_WRITER_ERROR "\nRefusing to write to this drive\n1\n", LONG_TIMEOUT);
+ LOG_DISK ("Will not write to %1 as it's mounted", device);
+ DiskWriterBackEndResponse::error("Refusing to write to this drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
return true;
}
- LOG_DISK ("Here we go writing %1 to %2", *dcp_path, *device);
-
-#ifdef DCPOMATIC_LINUX
- polkit_authority = polkit_authority_get_sync (0, 0);
- PolkitSubject* subject = polkit_unix_process_new_for_owner (getppid(), 0, -1);
- Parameters* parameters = new Parameters;
- parameters->dcp_path = *dcp_path;
- parameters->device = *device;
- parameters->posix_partition = *device;
- /* XXX: don't know if this logic is sensible */
- if (parameters->posix_partition.size() > 0 && isdigit(parameters->posix_partition[parameters->posix_partition.length() - 1])) {
- parameters->posix_partition += "p1";
- } else {
- parameters->posix_partition += "1";
+ LOG_DISK("Here we go writing these to %1", device);
+ for (auto dcp: dcp_paths) {
+ LOG_DISK(" %1", dcp);
}
- polkit_authority_check_authorization (
- polkit_authority, subject, "com.dcpomatic.write-drive", 0, POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, 0, polkit_callback, parameters
- );
-#else
- string posix_partition = "";
-#ifdef DCPOMATIC_OSX
- posix_partition = *device + "s1";
-#endif
- dcpomatic::write (*dcp_path, *device, posix_partition, nanomsg);
+
+ request_privileges (
+ "com.dcpomatic.write-drive",
+ [dcp_paths, device]() {
+#if defined(DCPOMATIC_LINUX)
+ auto posix_partition = device;
+ /* XXX: don't know if this logic is sensible */
+ if (posix_partition.size() > 0 && isdigit(posix_partition[posix_partition.length() - 1])) {
+ posix_partition += "p1";
+ } else {
+ posix_partition += "1";
+ }
+ dcpomatic::write (dcp_paths, device, posix_partition, nanomsg);
+#elif defined(DCPOMATIC_OSX)
+ auto fast_device = boost::algorithm::replace_first_copy (device, "/dev/disk", "/dev/rdisk");
+ dcpomatic::write (dcp_paths, fast_device, fast_device + "s1", nanomsg);
+#elif defined(DCPOMATIC_WINDOWS)
+ dcpomatic::write (dcp_paths, device, "", nanomsg);
#endif
+ },
+ []() {
+ if (nanomsg) {
+ DiskWriterBackEndResponse::error("Could not obtain authorization to write to the drive", 1, 0).write_to_nanomsg(*nanomsg, LONG_TIMEOUT);
+ }
+ });
}
return true;
int
main ()
{
+ dcpomatic_setup_path_encoding();
+
#ifdef DCPOMATIC_OSX
/* On macOS this is running as root, so config_path() will be somewhere in root's
* home. Instead, just write to stdout as the macOS process control stuff will
* redirect this to a file in /var/log
*/
dcpomatic_log.reset(new StdoutLog(LogEntry::TYPE_DISK));
- LOG_DISK("dcpomatic_disk_writer %1 started", dcpomatic_git_commit);
+ LOG_DISK("dcpomatic_disk_writer %1 started uid=%2 euid=%3", dcpomatic_git_commit, getuid(), geteuid());
#else
/* XXX: this is a hack, but I expect we'll need logs and I'm not sure if there's
* a better place to put them.
*/
- dcpomatic_log.reset(new FileLog(config_path() / "disk_writer.log", LogEntry::TYPE_DISK));
+ dcpomatic_log.reset(new FileLog(State::write_path("disk_writer.log"), LogEntry::TYPE_DISK));
LOG_DISK_NC("dcpomatic_disk_writer started");
#endif
exit (EXIT_FAILURE);
}
- Glib::RefPtr<Glib::MainLoop> ml = Glib::MainLoop::create ();
+ LOG_DISK_NC("Entering main loop");
+ auto ml = Glib::MainLoop::create ();
Glib::signal_timeout().connect(sigc::ptr_fun(&idle), 500);
ml->run ();
}
projects / dcpomatic.git / blobdiff