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Commit | Line | Data |
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d812c3b6 | 1 | #include "git-compat-util.h" |
32a8f510 | 2 | #include "environment.h" |
8f1d2e6f | 3 | #include "tag.h" |
dabab1d6 | 4 | #include "object-name.h" |
a034e910 | 5 | #include "object-store-ll.h" |
0ab17950 NP |
6 | #include "commit.h" |
7 | #include "tree.h" | |
8 | #include "blob.h" | |
14ba97f8 | 9 | #include "alloc.h" |
94240b91 | 10 | #include "gpg-interface.h" |
41771fa4 | 11 | #include "hex.h" |
8c4cc326 | 12 | #include "packfile.h" |
2636f614 DB |
13 | |
14 | const char *tag_type = "tag"; | |
15 | ||
45a227ef ST |
16 | static int run_gpg_verify(const char *buf, unsigned long size, unsigned flags) |
17 | { | |
18 | struct signature_check sigc; | |
482c1191 | 19 | struct strbuf payload = STRBUF_INIT; |
20 | struct strbuf signature = STRBUF_INIT; | |
45a227ef ST |
21 | int ret; |
22 | ||
23 | memset(&sigc, 0, sizeof(sigc)); | |
24 | ||
482c1191 | 25 | if (!parse_signature(buf, size, &payload, &signature)) { |
45a227ef | 26 | if (flags & GPG_VERIFY_VERBOSE) |
482c1191 | 27 | write_in_full(1, buf, size); |
45a227ef ST |
28 | return error("no signature found"); |
29 | } | |
30 | ||
dd3aa418 | 31 | sigc.payload_type = SIGNATURE_PAYLOAD_TAG; |
02769437 FS |
32 | sigc.payload = strbuf_detach(&payload, &sigc.payload_len); |
33 | ret = check_signature(&sigc, signature.buf, signature.len); | |
94240b91 LP |
34 | |
35 | if (!(flags & GPG_VERIFY_OMIT_STATUS)) | |
36 | print_signature_buffer(&sigc, flags); | |
45a227ef ST |
37 | |
38 | signature_check_clear(&sigc); | |
482c1191 | 39 | strbuf_release(&payload); |
40 | strbuf_release(&signature); | |
45a227ef ST |
41 | return ret; |
42 | } | |
43 | ||
84571760 | 44 | int gpg_verify_tag(const struct object_id *oid, const char *name_to_report, |
45a227ef ST |
45 | unsigned flags) |
46 | { | |
47 | enum object_type type; | |
48 | char *buf; | |
49 | unsigned long size; | |
50 | int ret; | |
51 | ||
0df8e965 | 52 | type = oid_object_info(the_repository, oid, NULL); |
45a227ef ST |
53 | if (type != OBJ_TAG) |
54 | return error("%s: cannot verify a non-tag object of type %s.", | |
55 | name_to_report ? | |
56 | name_to_report : | |
d850b7a5 | 57 | repo_find_unique_abbrev(the_repository, oid, DEFAULT_ABBREV), |
debca9d2 | 58 | type_name(type)); |
45a227ef | 59 | |
bc726bd0 | 60 | buf = repo_read_object_file(the_repository, oid, &type, &size); |
45a227ef ST |
61 | if (!buf) |
62 | return error("%s: unable to read file.", | |
63 | name_to_report ? | |
64 | name_to_report : | |
d850b7a5 | 65 | repo_find_unique_abbrev(the_repository, oid, DEFAULT_ABBREV)); |
45a227ef ST |
66 | |
67 | ret = run_gpg_verify(buf, size, flags); | |
68 | ||
69 | free(buf); | |
70 | return ret; | |
71 | } | |
72 | ||
286d258d | 73 | struct object *deref_tag(struct repository *r, struct object *o, const char *warn, int warnlen) |
37fde874 | 74 | { |
8c4cc326 | 75 | struct object_id *last_oid = NULL; |
1974632c | 76 | while (o && o->type == OBJ_TAG) |
8c4cc326 JT |
77 | if (((struct tag *)o)->tagged) { |
78 | last_oid = &((struct tag *)o)->tagged->oid; | |
09ca6130 | 79 | o = parse_object(r, last_oid); |
8c4cc326 JT |
80 | } else { |
81 | last_oid = NULL; | |
24e8a3c9 | 82 | o = NULL; |
8c4cc326 | 83 | } |
9534f40b | 84 | if (!o && warn) { |
8c4cc326 JT |
85 | if (last_oid && is_promisor_object(last_oid)) |
86 | return NULL; | |
9534f40b JH |
87 | if (!warnlen) |
88 | warnlen = strlen(warn); | |
89 | error("missing object referenced by '%.*s'", warnlen, warn); | |
90 | } | |
37fde874 JH |
91 | return o; |
92 | } | |
93 | ||
90108a24 JK |
94 | struct object *deref_tag_noverify(struct object *o) |
95 | { | |
96 | while (o && o->type == OBJ_TAG) { | |
109cd76d | 97 | o = parse_object(the_repository, &o->oid); |
90108a24 JK |
98 | if (o && o->type == OBJ_TAG && ((struct tag *)o)->tagged) |
99 | o = ((struct tag *)o)->tagged; | |
100 | else | |
101 | o = NULL; | |
102 | } | |
103 | return o; | |
104 | } | |
105 | ||
8bde69b9 | 106 | struct tag *lookup_tag(struct repository *r, const struct object_id *oid) |
2636f614 | 107 | { |
d0229abd | 108 | struct object *obj = lookup_object(r, oid); |
100c5f3b | 109 | if (!obj) |
a378509e | 110 | return create_object(r, oid, alloc_tag_node(r)); |
6da43d93 | 111 | return object_as_type(obj, OBJ_TAG, 0); |
2636f614 DB |
112 | } |
113 | ||
dddbad72 | 114 | static timestamp_t parse_tag_date(const char *buf, const char *tail) |
e451d06b SP |
115 | { |
116 | const char *dateptr; | |
117 | ||
118 | while (buf < tail && *buf++ != '>') | |
119 | /* nada */; | |
120 | if (buf >= tail) | |
121 | return 0; | |
122 | dateptr = buf; | |
123 | while (buf < tail && *buf++ != '\n') | |
124 | /* nada */; | |
125 | if (buf >= tail) | |
126 | return 0; | |
1aeb7e75 JS |
127 | /* dateptr < buf && buf[-1] == '\n', so parsing will stop at buf-1 */ |
128 | return parse_timestamp(dateptr, NULL, 10); | |
e451d06b SP |
129 | } |
130 | ||
14ba97f8 SB |
131 | void release_tag_memory(struct tag *t) |
132 | { | |
133 | free(t->tag); | |
134 | t->tagged = NULL; | |
135 | t->object.parsed = 0; | |
136 | t->date = 0; | |
137 | } | |
138 | ||
84f80cd2 | 139 | int parse_tag_buffer(struct repository *r, struct tag *item, const void *data, unsigned long size) |
2636f614 | 140 | { |
1e4085a0 | 141 | struct object_id oid; |
89e4202f | 142 | char type[20]; |
28de5b6b SP |
143 | const char *bufptr = data; |
144 | const char *tail = bufptr + size; | |
145 | const char *nl; | |
ae200ee5 | 146 | |
2e0052a5 SP |
147 | if (item->object.parsed) |
148 | return 0; | |
228c78fb JK |
149 | |
150 | if (item->tag) { | |
151 | /* | |
152 | * Presumably left over from a previous failed parse; | |
153 | * clear it out in preparation for re-parsing (we'll probably | |
154 | * hit the same error, which lets us tell our current caller | |
155 | * about the problem). | |
156 | */ | |
157 | FREE_AND_NULL(item->tag); | |
158 | } | |
2636f614 | 159 | |
d8a3a690 | 160 | if (size < the_hash_algo->hexsz + 24) |
bd2c39f5 | 161 | return -1; |
1e4085a0 | 162 | if (memcmp("object ", bufptr, 7) || parse_oid_hex(bufptr + 7, &oid, &bufptr) || *bufptr++ != '\n') |
bd2c39f5 | 163 | return -1; |
2636f614 | 164 | |
59556548 | 165 | if (!starts_with(bufptr, "type ")) |
bd2c39f5 | 166 | return -1; |
28de5b6b SP |
167 | bufptr += 5; |
168 | nl = memchr(bufptr, '\n', tail - bufptr); | |
169 | if (!nl || sizeof(type) <= (nl - bufptr)) | |
bd2c39f5 | 170 | return -1; |
eddda371 | 171 | memcpy(type, bufptr, nl - bufptr); |
28de5b6b SP |
172 | type[nl - bufptr] = '\0'; |
173 | bufptr = nl + 1; | |
2636f614 | 174 | |
0ab17950 | 175 | if (!strcmp(type, blob_type)) { |
84f80cd2 | 176 | item->tagged = (struct object *)lookup_blob(r, &oid); |
0ab17950 | 177 | } else if (!strcmp(type, tree_type)) { |
84f80cd2 | 178 | item->tagged = (struct object *)lookup_tree(r, &oid); |
0ab17950 | 179 | } else if (!strcmp(type, commit_type)) { |
84f80cd2 | 180 | item->tagged = (struct object *)lookup_commit(r, &oid); |
0ab17950 | 181 | } else if (!strcmp(type, tag_type)) { |
84f80cd2 | 182 | item->tagged = (struct object *)lookup_tag(r, &oid); |
0ab17950 | 183 | } else { |
78d50148 JK |
184 | return error("unknown tag type '%s' in %s", |
185 | type, oid_to_hex(&item->object.oid)); | |
0ab17950 NP |
186 | } |
187 | ||
78d50148 JK |
188 | if (!item->tagged) |
189 | return error("bad tag pointer to %s in %s", | |
190 | oid_to_hex(&oid), | |
191 | oid_to_hex(&item->object.oid)); | |
192 | ||
59556548 | 193 | if (bufptr + 4 < tail && starts_with(bufptr, "tag ")) |
85594252 NTND |
194 | ; /* good */ |
195 | else | |
28de5b6b SP |
196 | return -1; |
197 | bufptr += 4; | |
198 | nl = memchr(bufptr, '\n', tail - bufptr); | |
199 | if (!nl) | |
200 | return -1; | |
201 | item->tag = xmemdupz(bufptr, nl - bufptr); | |
202 | bufptr = nl + 1; | |
203 | ||
59556548 | 204 | if (bufptr + 7 < tail && starts_with(bufptr, "tagger ")) |
e451d06b SP |
205 | item->date = parse_tag_date(bufptr, tail); |
206 | else | |
207 | item->date = 0; | |
208 | ||
228c78fb | 209 | item->object.parsed = 1; |
2636f614 | 210 | return 0; |
bd2c39f5 | 211 | } |
13019d41 | 212 | |
bd2c39f5 NP |
213 | int parse_tag(struct tag *item) |
214 | { | |
21666f1a | 215 | enum object_type type; |
bd2c39f5 NP |
216 | void *data; |
217 | unsigned long size; | |
218 | int ret; | |
219 | ||
220 | if (item->object.parsed) | |
221 | return 0; | |
bc726bd0 ÆAB |
222 | data = repo_read_object_file(the_repository, &item->object.oid, &type, |
223 | &size); | |
bd2c39f5 NP |
224 | if (!data) |
225 | return error("Could not read %s", | |
f2fd0760 | 226 | oid_to_hex(&item->object.oid)); |
21666f1a | 227 | if (type != OBJ_TAG) { |
bd2c39f5 NP |
228 | free(data); |
229 | return error("Object %s not a tag", | |
f2fd0760 | 230 | oid_to_hex(&item->object.oid)); |
bd2c39f5 | 231 | } |
0e740fed | 232 | ret = parse_tag_buffer(the_repository, item, data, size); |
13019d41 | 233 | free(data); |
bd2c39f5 | 234 | return ret; |
2636f614 | 235 | } |
dad3f060 RS |
236 | |
237 | struct object_id *get_tagged_oid(struct tag *tag) | |
238 | { | |
239 | if (!tag->tagged) | |
240 | die("bad tag"); | |
241 | return &tag->tagged->oid; | |
242 | } |