98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
#include "discord_rpc.h"
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#include "discord_register.h"
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#include <cstdio>
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#include <errno.h>
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#include <cstdlib>
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#include <cstring>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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namespace {
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static bool Mkdir(const char *path) {
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int result = mkdir(path, 0755);
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if (result == 0) {
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return true;
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}
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if (errno == EEXIST) {
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return true;
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}
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return false;
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}
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} // namespace
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// We want to register games so we can run them from Discord client as discord-<appid>://
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extern "C" void Discord_Register(const char *applicationId, const char *command) {
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// Add a desktop file and update some mime handlers so that xdg-open does the right thing.
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const char *home = getenv("HOME");
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if (!home) {
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return;
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}
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char exePath[1024]{};
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if (!command || !command[0]) {
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const ssize_t size = readlink("/proc/self/exe", exePath, sizeof(exePath));
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if (size <= 0 || size >= static_cast<ssize_t>(sizeof(exePath))) {
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return;
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}
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exePath[size] = '\0';
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command = exePath;
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}
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constexpr char desktopFileFormat[] = "[Desktop Entry]\n"
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"Name=Game %s\n"
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"Exec=%s %%u\n" // note: it really wants that %u in there
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"Type=Application\n"
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"NoDisplay=true\n"
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"Categories=Discord;Games;\n"
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"MimeType=x-scheme-handler/discord-%s;\n";
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char desktopFile[2048]{};
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int fileLen = snprintf(desktopFile, sizeof(desktopFile), desktopFileFormat, applicationId, command, applicationId);
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if (fileLen <= 0) {
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return;
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}
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char desktopFilename[256]{};
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(void)snprintf(desktopFilename, sizeof(desktopFilename), "/discord-%s.desktop", applicationId);
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char desktopFilePath[1024]{};
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(void)snprintf(desktopFilePath, sizeof(desktopFilePath), "%s/.local", home);
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if (!Mkdir(desktopFilePath)) {
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return;
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}
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strcat(desktopFilePath, "/share");
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if (!Mkdir(desktopFilePath)) {
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return;
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}
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strcat(desktopFilePath, "/applications");
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if (!Mkdir(desktopFilePath)) {
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return;
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}
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strcat(desktopFilePath, desktopFilename);
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FILE *fp = fopen(desktopFilePath, "w");
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if (fp) {
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fwrite(desktopFile, 1, fileLen, fp);
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fclose(fp);
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}
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else {
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return;
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}
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char xdgMimeCommand[1024]{};
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snprintf(xdgMimeCommand,
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sizeof(xdgMimeCommand),
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"xdg-mime default discord-%s.desktop x-scheme-handler/discord-%s",
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applicationId,
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applicationId);
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if (system(xdgMimeCommand) < 0) {
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fprintf(stderr, "Failed to register mime handler\n");
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}
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}
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