#include "cache.h" #include "credential.h" #include "string-list.h" #include "parse-options.h" #include "unix-socket.h" #include "run-command.h" #define FLAG_SPAWN 0x1 #define FLAG_RELAY 0x2 static int send_request(const char *socket, const struct strbuf *out) { int got_data = 0; int fd = unix_stream_connect(socket); if (fd < 0) return -1; if (write_in_full(fd, out->buf, out->len) < 0) die_errno("unable to write to cache daemon"); shutdown(fd, SHUT_WR); while (1) { char in[1024]; int r; r = read_in_full(fd, in, sizeof(in)); if (r == 0) break; if (r < 0) die_errno("read error from cache daemon"); write_or_die(1, in, r); got_data = 1; } close(fd); return got_data; } static void spawn_daemon(const char *socket) { struct child_process daemon = CHILD_PROCESS_INIT; const char *argv[] = { NULL, NULL, NULL }; char buf[128]; int r; argv[0] = "git-credential-cache--daemon"; argv[1] = socket; daemon.argv = argv; daemon.no_stdin = 1; daemon.out = -1; if (start_command(&daemon)) die_errno("unable to start cache daemon"); r = read_in_full(daemon.out, buf, sizeof(buf)); if (r < 0) die_errno("unable to read result code from cache daemon"); if (r != 3 || memcmp(buf, "ok\n", 3)) die("cache daemon did not start: %.*s", r, buf); close(daemon.out); } static void do_cache(const char *socket, const char *action, int timeout, int flags) { struct strbuf buf = STRBUF_INIT; strbuf_addf(&buf, "action=%s\n", action); strbuf_addf(&buf, "timeout=%d\n", timeout); if (flags & FLAG_RELAY) { if (strbuf_read(&buf, 0, 0) < 0) die_errno("unable to relay credential"); } if (send_request(socket, &buf) < 0) { if (errno != ENOENT && errno != ECONNREFUSED) die_errno("unable to connect to cache daemon"); if (flags & FLAG_SPAWN) { spawn_daemon(socket); if (send_request(socket, &buf) < 0) die_errno("unable to connect to cache daemon"); } } strbuf_release(&buf); } int cmd_main(int argc, const char **argv) { char *socket_path = NULL; int timeout = 900; const char *op; const char * const usage[] = { "git credential-cache [<options>] <action>", NULL }; struct option options[] = { OPT_INTEGER(0, "timeout", &timeout, "number of seconds to cache credentials"), OPT_STRING(0, "socket", &socket_path, "path", "path of cache-daemon socket"), OPT_END() }; argc = parse_options(argc, argv, NULL, options, usage, 0); if (!argc) usage_with_options(usage, options); op = argv[0]; if (!socket_path) socket_path = expand_user_path("~/.git-credential-cache/socket"); if (!socket_path) die("unable to find a suitable socket path; use --socket"); if (!strcmp(op, "exit")) do_cache(socket_path, op, timeout, 0); else if (!strcmp(op, "get") || !strcmp(op, "erase")) do_cache(socket_path, op, timeout, FLAG_RELAY); else if (!strcmp(op, "store")) do_cache(socket_path, op, timeout, FLAG_RELAY|FLAG_SPAWN); else ; /* ignore unknown operation */ return 0; }