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Commit | Line | Data |
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b5dd96b7 JK |
1 | #include "builtin.h" |
2 | #include "parse-options.h" | |
3 | ||
4 | #ifndef NO_UNIX_SOCKETS | |
5 | ||
e2770979 JK |
6 | #include "credential.h" |
7 | #include "string-list.h" | |
e2770979 JK |
8 | #include "unix-socket.h" |
9 | #include "run-command.h" | |
10 | ||
11 | #define FLAG_SPAWN 0x1 | |
12 | #define FLAG_RELAY 0x2 | |
13 | ||
14 | static int send_request(const char *socket, const struct strbuf *out) | |
15 | { | |
16 | int got_data = 0; | |
17 | int fd = unix_stream_connect(socket); | |
18 | ||
19 | if (fd < 0) | |
20 | return -1; | |
21 | ||
22 | if (write_in_full(fd, out->buf, out->len) < 0) | |
23 | die_errno("unable to write to cache daemon"); | |
24 | shutdown(fd, SHUT_WR); | |
25 | ||
26 | while (1) { | |
27 | char in[1024]; | |
28 | int r; | |
29 | ||
30 | r = read_in_full(fd, in, sizeof(in)); | |
1f180e5e | 31 | if (r == 0 || (r < 0 && errno == ECONNRESET)) |
e2770979 JK |
32 | break; |
33 | if (r < 0) | |
34 | die_errno("read error from cache daemon"); | |
35 | write_or_die(1, in, r); | |
36 | got_data = 1; | |
37 | } | |
9c60d9fa | 38 | close(fd); |
e2770979 JK |
39 | return got_data; |
40 | } | |
41 | ||
42 | static void spawn_daemon(const char *socket) | |
43 | { | |
d3180279 | 44 | struct child_process daemon = CHILD_PROCESS_INIT; |
e2770979 JK |
45 | char buf[128]; |
46 | int r; | |
47 | ||
c0e190c1 JH |
48 | strvec_pushl(&daemon.args, |
49 | "credential-cache--daemon", socket, | |
50 | NULL); | |
51 | daemon.git_cmd = 1; | |
e2770979 JK |
52 | daemon.no_stdin = 1; |
53 | daemon.out = -1; | |
54 | ||
55 | if (start_command(&daemon)) | |
56 | die_errno("unable to start cache daemon"); | |
57 | r = read_in_full(daemon.out, buf, sizeof(buf)); | |
58 | if (r < 0) | |
59 | die_errno("unable to read result code from cache daemon"); | |
60 | if (r != 3 || memcmp(buf, "ok\n", 3)) | |
61 | die("cache daemon did not start: %.*s", r, buf); | |
62 | close(daemon.out); | |
63 | } | |
64 | ||
65 | static void do_cache(const char *socket, const char *action, int timeout, | |
66 | int flags) | |
67 | { | |
68 | struct strbuf buf = STRBUF_INIT; | |
69 | ||
70 | strbuf_addf(&buf, "action=%s\n", action); | |
71 | strbuf_addf(&buf, "timeout=%d\n", timeout); | |
72 | if (flags & FLAG_RELAY) { | |
73 | if (strbuf_read(&buf, 0, 0) < 0) | |
74 | die_errno("unable to relay credential"); | |
75 | } | |
76 | ||
8ec6c8d7 | 77 | if (send_request(socket, &buf) < 0) { |
35a71f14 | 78 | if (errno != ENOENT && errno != ECONNREFUSED) |
98c2924c | 79 | die_errno("unable to connect to cache daemon"); |
8ec6c8d7 JK |
80 | if (flags & FLAG_SPAWN) { |
81 | spawn_daemon(socket); | |
82 | if (send_request(socket, &buf) < 0) | |
83 | die_errno("unable to connect to cache daemon"); | |
84 | } | |
e2770979 JK |
85 | } |
86 | strbuf_release(&buf); | |
87 | } | |
88 | ||
60759baa DL |
89 | static char *get_socket_path(void) |
90 | { | |
91 | struct stat sb; | |
92 | char *old_dir, *socket; | |
a2e2c046 | 93 | old_dir = expand_user_path("~/.git-credential-cache", 0); |
60759baa DL |
94 | if (old_dir && !stat(old_dir, &sb) && S_ISDIR(sb.st_mode)) |
95 | socket = xstrfmt("%s/socket", old_dir); | |
96 | else | |
97 | socket = xdg_cache_home("credential/socket"); | |
98 | free(old_dir); | |
99 | return socket; | |
100 | } | |
101 | ||
b5dd96b7 | 102 | int cmd_credential_cache(int argc, const char **argv, const char *prefix) |
e2770979 JK |
103 | { |
104 | char *socket_path = NULL; | |
105 | int timeout = 900; | |
106 | const char *op; | |
107 | const char * const usage[] = { | |
d96a0313 | 108 | "git credential-cache [<options>] <action>", |
e2770979 JK |
109 | NULL |
110 | }; | |
111 | struct option options[] = { | |
112 | OPT_INTEGER(0, "timeout", &timeout, | |
113 | "number of seconds to cache credentials"), | |
114 | OPT_STRING(0, "socket", &socket_path, "path", | |
115 | "path of cache-daemon socket"), | |
116 | OPT_END() | |
117 | }; | |
118 | ||
b5dd96b7 | 119 | argc = parse_options(argc, argv, prefix, options, usage, 0); |
e2770979 JK |
120 | if (!argc) |
121 | usage_with_options(usage, options); | |
122 | op = argv[0]; | |
123 | ||
124 | if (!socket_path) | |
60759baa | 125 | socket_path = get_socket_path(); |
e2770979 JK |
126 | if (!socket_path) |
127 | die("unable to find a suitable socket path; use --socket"); | |
128 | ||
129 | if (!strcmp(op, "exit")) | |
130 | do_cache(socket_path, op, timeout, 0); | |
131 | else if (!strcmp(op, "get") || !strcmp(op, "erase")) | |
132 | do_cache(socket_path, op, timeout, FLAG_RELAY); | |
133 | else if (!strcmp(op, "store")) | |
134 | do_cache(socket_path, op, timeout, FLAG_RELAY|FLAG_SPAWN); | |
135 | else | |
136 | ; /* ignore unknown operation */ | |
137 | ||
138 | return 0; | |
139 | } | |
b5dd96b7 JK |
140 | |
141 | #else | |
142 | ||
143 | int cmd_credential_cache(int argc, const char **argv, const char *prefix) | |
144 | { | |
145 | const char * const usage[] = { | |
146 | "git credential-cache [options] <action>", | |
147 | "", | |
148 | "credential-cache is disabled in this build of Git", | |
149 | NULL | |
150 | }; | |
151 | struct option options[] = { OPT_END() }; | |
152 | ||
153 | argc = parse_options(argc, argv, prefix, options, usage, 0); | |
154 | die(_("credential-cache unavailable; no unix socket support")); | |
155 | } | |
156 | ||
157 | #endif /* NO_UNIX_SOCKETS */ |