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Commit | Line | Data |
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e2770979 JK |
1 | #include "cache.h" |
2 | #include "credential.h" | |
3 | #include "string-list.h" | |
4 | #include "parse-options.h" | |
5 | #include "unix-socket.h" | |
6 | #include "run-command.h" | |
7 | ||
8 | #define FLAG_SPAWN 0x1 | |
9 | #define FLAG_RELAY 0x2 | |
10 | ||
11 | static int send_request(const char *socket, const struct strbuf *out) | |
12 | { | |
13 | int got_data = 0; | |
14 | int fd = unix_stream_connect(socket); | |
15 | ||
16 | if (fd < 0) | |
17 | return -1; | |
18 | ||
19 | if (write_in_full(fd, out->buf, out->len) < 0) | |
20 | die_errno("unable to write to cache daemon"); | |
21 | shutdown(fd, SHUT_WR); | |
22 | ||
23 | while (1) { | |
24 | char in[1024]; | |
25 | int r; | |
26 | ||
27 | r = read_in_full(fd, in, sizeof(in)); | |
28 | if (r == 0) | |
29 | break; | |
30 | if (r < 0) | |
31 | die_errno("read error from cache daemon"); | |
32 | write_or_die(1, in, r); | |
33 | got_data = 1; | |
34 | } | |
9c60d9fa | 35 | close(fd); |
e2770979 JK |
36 | return got_data; |
37 | } | |
38 | ||
39 | static void spawn_daemon(const char *socket) | |
40 | { | |
d3180279 | 41 | struct child_process daemon = CHILD_PROCESS_INIT; |
e2770979 JK |
42 | const char *argv[] = { NULL, NULL, NULL }; |
43 | char buf[128]; | |
44 | int r; | |
45 | ||
e2770979 JK |
46 | argv[0] = "git-credential-cache--daemon"; |
47 | argv[1] = socket; | |
48 | daemon.argv = argv; | |
49 | daemon.no_stdin = 1; | |
50 | daemon.out = -1; | |
51 | ||
52 | if (start_command(&daemon)) | |
53 | die_errno("unable to start cache daemon"); | |
54 | r = read_in_full(daemon.out, buf, sizeof(buf)); | |
55 | if (r < 0) | |
56 | die_errno("unable to read result code from cache daemon"); | |
57 | if (r != 3 || memcmp(buf, "ok\n", 3)) | |
58 | die("cache daemon did not start: %.*s", r, buf); | |
59 | close(daemon.out); | |
60 | } | |
61 | ||
62 | static void do_cache(const char *socket, const char *action, int timeout, | |
63 | int flags) | |
64 | { | |
65 | struct strbuf buf = STRBUF_INIT; | |
66 | ||
67 | strbuf_addf(&buf, "action=%s\n", action); | |
68 | strbuf_addf(&buf, "timeout=%d\n", timeout); | |
69 | if (flags & FLAG_RELAY) { | |
70 | if (strbuf_read(&buf, 0, 0) < 0) | |
71 | die_errno("unable to relay credential"); | |
72 | } | |
73 | ||
8ec6c8d7 | 74 | if (send_request(socket, &buf) < 0) { |
35a71f14 | 75 | if (errno != ENOENT && errno != ECONNREFUSED) |
98c2924c | 76 | die_errno("unable to connect to cache daemon"); |
8ec6c8d7 JK |
77 | if (flags & FLAG_SPAWN) { |
78 | spawn_daemon(socket); | |
79 | if (send_request(socket, &buf) < 0) | |
80 | die_errno("unable to connect to cache daemon"); | |
81 | } | |
e2770979 JK |
82 | } |
83 | strbuf_release(&buf); | |
84 | } | |
85 | ||
60759baa DL |
86 | static char *get_socket_path(void) |
87 | { | |
88 | struct stat sb; | |
89 | char *old_dir, *socket; | |
a2e2c046 | 90 | old_dir = expand_user_path("~/.git-credential-cache", 0); |
60759baa DL |
91 | if (old_dir && !stat(old_dir, &sb) && S_ISDIR(sb.st_mode)) |
92 | socket = xstrfmt("%s/socket", old_dir); | |
93 | else | |
94 | socket = xdg_cache_home("credential/socket"); | |
95 | free(old_dir); | |
96 | return socket; | |
97 | } | |
98 | ||
3f2e2297 | 99 | int cmd_main(int argc, const char **argv) |
e2770979 JK |
100 | { |
101 | char *socket_path = NULL; | |
102 | int timeout = 900; | |
103 | const char *op; | |
104 | const char * const usage[] = { | |
d96a0313 | 105 | "git credential-cache [<options>] <action>", |
e2770979 JK |
106 | NULL |
107 | }; | |
108 | struct option options[] = { | |
109 | OPT_INTEGER(0, "timeout", &timeout, | |
110 | "number of seconds to cache credentials"), | |
111 | OPT_STRING(0, "socket", &socket_path, "path", | |
112 | "path of cache-daemon socket"), | |
113 | OPT_END() | |
114 | }; | |
115 | ||
116 | argc = parse_options(argc, argv, NULL, options, usage, 0); | |
117 | if (!argc) | |
118 | usage_with_options(usage, options); | |
119 | op = argv[0]; | |
120 | ||
121 | if (!socket_path) | |
60759baa | 122 | socket_path = get_socket_path(); |
e2770979 JK |
123 | if (!socket_path) |
124 | die("unable to find a suitable socket path; use --socket"); | |
125 | ||
126 | if (!strcmp(op, "exit")) | |
127 | do_cache(socket_path, op, timeout, 0); | |
128 | else if (!strcmp(op, "get") || !strcmp(op, "erase")) | |
129 | do_cache(socket_path, op, timeout, FLAG_RELAY); | |
130 | else if (!strcmp(op, "store")) | |
131 | do_cache(socket_path, op, timeout, FLAG_RELAY|FLAG_SPAWN); | |
132 | else | |
133 | ; /* ignore unknown operation */ | |
134 | ||
135 | return 0; | |
136 | } |