1 13b2bc37 2022-10-23 stsp /*
  2 13b2bc37 2022-10-23 stsp  * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
  3 13b2bc37 2022-10-23 stsp  *
  4 13b2bc37 2022-10-23 stsp  * Permission to use, copy, modify, and distribute this software for any
  5 13b2bc37 2022-10-23 stsp  * purpose with or without fee is hereby granted, provided that the above
  6 13b2bc37 2022-10-23 stsp  * copyright notice and this permission notice appear in all copies.
  7 13b2bc37 2022-10-23 stsp  *
  8 13b2bc37 2022-10-23 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 13b2bc37 2022-10-23 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 13b2bc37 2022-10-23 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 13b2bc37 2022-10-23 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 13b2bc37 2022-10-23 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 13b2bc37 2022-10-23 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 13b2bc37 2022-10-23 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 13b2bc37 2022-10-23 stsp  */
 16 13b2bc37 2022-10-23 stsp 
 17 13b2bc37 2022-10-23 stsp #include <sys/queue.h>
 18 13b2bc37 2022-10-23 stsp #include <sys/tree.h>
 19 13b2bc37 2022-10-23 stsp 
 20 13b2bc37 2022-10-23 stsp #include <errno.h>
 21 13b2bc37 2022-10-23 stsp #include <event.h>
 22 13b2bc37 2022-10-23 stsp #include <fcntl.h>
 23 13b2bc37 2022-10-23 stsp #include <imsg.h>
 24 13b2bc37 2022-10-23 stsp #include <sha1.h>
 25 5822e79e 2023-02-23 op #include <sha2.h>
 26 13b2bc37 2022-10-23 stsp #include <stdio.h>
 27 13b2bc37 2022-10-23 stsp #include <stdlib.h>
 28 13b2bc37 2022-10-23 stsp #include <string.h>
 29 13b2bc37 2022-10-23 stsp #include <limits.h>
 30 13b2bc37 2022-10-23 stsp #include <unistd.h>
 31 13b2bc37 2022-10-23 stsp 
 32 13b2bc37 2022-10-23 stsp #include "got_error.h"
 33 13b2bc37 2022-10-23 stsp #include "got_object.h"
 34 13b2bc37 2022-10-23 stsp #include "got_repository.h"
 35 13b2bc37 2022-10-23 stsp #include "got_path.h"
 36 13b2bc37 2022-10-23 stsp 
 37 13b2bc37 2022-10-23 stsp #include "got_lib_gitconfig.h"
 38 13b2bc37 2022-10-23 stsp #include "got_lib_delta.h"
 39 13b2bc37 2022-10-23 stsp #include "got_lib_object.h"
 40 13b2bc37 2022-10-23 stsp #include "got_lib_object_cache.h"
 41 13b2bc37 2022-10-23 stsp #include "got_lib_privsep.h"
 42 13b2bc37 2022-10-23 stsp #include "got_lib_pack.h"
 43 13b2bc37 2022-10-23 stsp #include "got_lib_repository.h"
 44 13b2bc37 2022-10-23 stsp 
 45 13b2bc37 2022-10-23 stsp static int
 46 13b2bc37 2022-10-23 stsp get_boolean_val(char *val)
 47 13b2bc37 2022-10-23 stsp {
 48 13b2bc37 2022-10-23 stsp     return (strcasecmp(val, "true") == 0 ||
 49 13b2bc37 2022-10-23 stsp 	strcasecmp(val, "on") == 0 ||
 50 13b2bc37 2022-10-23 stsp 	strcasecmp(val, "yes") == 0 ||
 51 13b2bc37 2022-10-23 stsp 	strcmp(val, "1") == 0);
 52 13b2bc37 2022-10-23 stsp }
 53 13b2bc37 2022-10-23 stsp 
 54 13b2bc37 2022-10-23 stsp const struct got_error *
 55 13b2bc37 2022-10-23 stsp got_repo_read_gitconfig(int *gitconfig_repository_format_version,
 56 13b2bc37 2022-10-23 stsp     char **gitconfig_author_name, char **gitconfig_author_email,
 57 13b2bc37 2022-10-23 stsp     struct got_remote_repo **remotes, int *nremotes,
 58 b0ac38bb 2023-02-06 mark     char **gitconfig_owner, char ***extnames, char ***extvals,
 59 b0ac38bb 2023-02-06 mark     int *nextensions, const char *gitconfig_path)
 60 13b2bc37 2022-10-23 stsp {
 61 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
 62 13b2bc37 2022-10-23 stsp 	struct got_gitconfig *gitconfig = NULL;
 63 13b2bc37 2022-10-23 stsp 	struct got_gitconfig_list *tags;
 64 13b2bc37 2022-10-23 stsp 	struct got_gitconfig_list_node *node;
 65 13b2bc37 2022-10-23 stsp 	int fd, i;
 66 13b2bc37 2022-10-23 stsp 	const char *author, *email, *owner;
 67 13b2bc37 2022-10-23 stsp 
 68 13b2bc37 2022-10-23 stsp 	*gitconfig_repository_format_version = 0;
 69 b0ac38bb 2023-02-06 mark 	if (extnames)
 70 b0ac38bb 2023-02-06 mark 		*extnames = NULL;
 71 b0ac38bb 2023-02-06 mark 	if (extvals)
 72 b0ac38bb 2023-02-06 mark 		*extvals = NULL;
 73 13b2bc37 2022-10-23 stsp 	if (nextensions)
 74 13b2bc37 2022-10-23 stsp 		*nextensions = 0;
 75 13b2bc37 2022-10-23 stsp 	*gitconfig_author_name = NULL;
 76 13b2bc37 2022-10-23 stsp 	*gitconfig_author_email = NULL;
 77 13b2bc37 2022-10-23 stsp 	if (remotes)
 78 13b2bc37 2022-10-23 stsp 		*remotes = NULL;
 79 13b2bc37 2022-10-23 stsp 	if (nremotes)
 80 13b2bc37 2022-10-23 stsp 		*nremotes = 0;
 81 13b2bc37 2022-10-23 stsp 	if (gitconfig_owner)
 82 13b2bc37 2022-10-23 stsp 		*gitconfig_owner = NULL;
 83 13b2bc37 2022-10-23 stsp 
 84 13b2bc37 2022-10-23 stsp 	fd = open(gitconfig_path, O_RDONLY | O_CLOEXEC);
 85 13b2bc37 2022-10-23 stsp 	if (fd == -1) {
 86 13b2bc37 2022-10-23 stsp 		if (errno == ENOENT)
 87 13b2bc37 2022-10-23 stsp 			return NULL;
 88 13b2bc37 2022-10-23 stsp 		return got_error_from_errno2("open", gitconfig_path);
 89 13b2bc37 2022-10-23 stsp 	}
 90 13b2bc37 2022-10-23 stsp 
 91 13b2bc37 2022-10-23 stsp 	err = got_gitconfig_open(&gitconfig, fd);
 92 13b2bc37 2022-10-23 stsp 	if (err)
 93 13b2bc37 2022-10-23 stsp 		goto done;
 94 13b2bc37 2022-10-23 stsp 
 95 13b2bc37 2022-10-23 stsp 	*gitconfig_repository_format_version = got_gitconfig_get_num(gitconfig,
 96 13b2bc37 2022-10-23 stsp 	    "core", "repositoryformatversion", 0);
 97 13b2bc37 2022-10-23 stsp 
 98 13b2bc37 2022-10-23 stsp 	tags = got_gitconfig_get_tag_list(gitconfig, "extensions");
 99 b0ac38bb 2023-02-06 mark 	if (extnames && extvals && nextensions && tags) {
100 13b2bc37 2022-10-23 stsp 		size_t numext = 0;
101 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &tags->fields, link) {
102 13b2bc37 2022-10-23 stsp 			char *ext = node->field;
103 13b2bc37 2022-10-23 stsp 			char *val = got_gitconfig_get_str(gitconfig,
104 13b2bc37 2022-10-23 stsp 			    "extensions", ext);
105 13b2bc37 2022-10-23 stsp 			if (get_boolean_val(val))
106 13b2bc37 2022-10-23 stsp 				numext++;
107 13b2bc37 2022-10-23 stsp 		}
108 b0ac38bb 2023-02-06 mark 		*extnames = calloc(numext, sizeof(char *));
109 b0ac38bb 2023-02-06 mark 		if (*extnames == NULL) {
110 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("calloc");
111 13b2bc37 2022-10-23 stsp 			goto done;
112 13b2bc37 2022-10-23 stsp 		}
113 b0ac38bb 2023-02-06 mark 		*extvals = calloc(numext, sizeof(char *));
114 b0ac38bb 2023-02-06 mark 		if (*extvals == NULL) {
115 b0ac38bb 2023-02-06 mark 			err = got_error_from_errno("calloc");
116 b0ac38bb 2023-02-06 mark 			goto done;
117 b0ac38bb 2023-02-06 mark 		}
118 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &tags->fields, link) {
119 13b2bc37 2022-10-23 stsp 			char *ext = node->field;
120 13b2bc37 2022-10-23 stsp 			char *val = got_gitconfig_get_str(gitconfig,
121 13b2bc37 2022-10-23 stsp 			    "extensions", ext);
122 13b2bc37 2022-10-23 stsp 			if (get_boolean_val(val)) {
123 b0ac38bb 2023-02-06 mark 				char *extstr = NULL, *valstr = NULL;
124 b0ac38bb 2023-02-06 mark 
125 b0ac38bb 2023-02-06 mark 				extstr = strdup(ext);
126 13b2bc37 2022-10-23 stsp 				if (extstr == NULL) {
127 13b2bc37 2022-10-23 stsp 					err = got_error_from_errno("strdup");
128 13b2bc37 2022-10-23 stsp 					goto done;
129 13b2bc37 2022-10-23 stsp 				}
130 b0ac38bb 2023-02-06 mark 				valstr = strdup(val);
131 b0ac38bb 2023-02-06 mark 				if (valstr == NULL) {
132 b0ac38bb 2023-02-06 mark 					err = got_error_from_errno("strdup");
133 b0ac38bb 2023-02-06 mark 					goto done;
134 b0ac38bb 2023-02-06 mark 				}
135 b0ac38bb 2023-02-06 mark 				(*extnames)[(*nextensions)] = extstr;
136 b0ac38bb 2023-02-06 mark 				(*extvals)[(*nextensions)] = valstr;
137 13b2bc37 2022-10-23 stsp 				(*nextensions)++;
138 13b2bc37 2022-10-23 stsp 			}
139 13b2bc37 2022-10-23 stsp 		}
140 13b2bc37 2022-10-23 stsp 	}
141 13b2bc37 2022-10-23 stsp 
142 13b2bc37 2022-10-23 stsp 	author = got_gitconfig_get_str(gitconfig, "user", "name");
143 13b2bc37 2022-10-23 stsp 	if (author) {
144 13b2bc37 2022-10-23 stsp 		*gitconfig_author_name = strdup(author);
145 13b2bc37 2022-10-23 stsp 		if (*gitconfig_author_name == NULL) {
146 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("strdup");
147 13b2bc37 2022-10-23 stsp 			goto done;
148 13b2bc37 2022-10-23 stsp 		}
149 13b2bc37 2022-10-23 stsp 	}
150 13b2bc37 2022-10-23 stsp 
151 13b2bc37 2022-10-23 stsp 	email = got_gitconfig_get_str(gitconfig, "user", "email");
152 13b2bc37 2022-10-23 stsp 	if (email) {
153 13b2bc37 2022-10-23 stsp 		*gitconfig_author_email = strdup(email);
154 13b2bc37 2022-10-23 stsp 		if (*gitconfig_author_email == NULL) {
155 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("strdup");
156 13b2bc37 2022-10-23 stsp 			goto done;
157 13b2bc37 2022-10-23 stsp 		}
158 13b2bc37 2022-10-23 stsp 	}
159 13b2bc37 2022-10-23 stsp 
160 13b2bc37 2022-10-23 stsp 	if (gitconfig_owner) {
161 13b2bc37 2022-10-23 stsp 		owner = got_gitconfig_get_str(gitconfig, "gotweb", "owner");
162 13b2bc37 2022-10-23 stsp 		if (owner == NULL)
163 13b2bc37 2022-10-23 stsp 			owner = got_gitconfig_get_str(gitconfig, "gitweb",
164 13b2bc37 2022-10-23 stsp 			    "owner");
165 13b2bc37 2022-10-23 stsp 		if (owner) {
166 13b2bc37 2022-10-23 stsp 			*gitconfig_owner = strdup(owner);
167 13b2bc37 2022-10-23 stsp 			if (*gitconfig_owner == NULL) {
168 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
169 13b2bc37 2022-10-23 stsp 				goto done;
170 13b2bc37 2022-10-23 stsp 			}
171 13b2bc37 2022-10-23 stsp 
172 13b2bc37 2022-10-23 stsp 		}
173 13b2bc37 2022-10-23 stsp 	}
174 13b2bc37 2022-10-23 stsp 
175 13b2bc37 2022-10-23 stsp 	if (remotes && nremotes) {
176 13b2bc37 2022-10-23 stsp 		struct got_gitconfig_list *sections;
177 13b2bc37 2022-10-23 stsp 		size_t nalloc = 0;
178 13b2bc37 2022-10-23 stsp 		err = got_gitconfig_get_section_list(&sections, gitconfig);
179 13b2bc37 2022-10-23 stsp 		if (err)
180 13b2bc37 2022-10-23 stsp 			return err;
181 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &sections->fields, link) {
182 13b2bc37 2022-10-23 stsp 			if (strncasecmp("remote \"", node->field, 8) != 0)
183 13b2bc37 2022-10-23 stsp 				continue;
184 13b2bc37 2022-10-23 stsp 			nalloc++;
185 13b2bc37 2022-10-23 stsp 		}
186 13b2bc37 2022-10-23 stsp 
187 13b2bc37 2022-10-23 stsp 		*remotes = recallocarray(NULL, 0, nalloc, sizeof(**remotes));
188 13b2bc37 2022-10-23 stsp 		if (*remotes == NULL) {
189 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("recallocarray");
190 13b2bc37 2022-10-23 stsp 			goto done;
191 13b2bc37 2022-10-23 stsp 		}
192 13b2bc37 2022-10-23 stsp 
193 13b2bc37 2022-10-23 stsp 		i = 0;
194 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &sections->fields, link) {
195 13b2bc37 2022-10-23 stsp 			struct got_remote_repo *remote;
196 13b2bc37 2022-10-23 stsp 			char *name, *end, *mirror;
197 13b2bc37 2022-10-23 stsp 			const char *fetch_url, *send_url;
198 13b2bc37 2022-10-23 stsp 
199 13b2bc37 2022-10-23 stsp 			if (strncasecmp("remote \"", node->field, 8) != 0)
200 13b2bc37 2022-10-23 stsp 				continue;
201 13b2bc37 2022-10-23 stsp 
202 13b2bc37 2022-10-23 stsp 			remote = &(*remotes)[i];
203 13b2bc37 2022-10-23 stsp 
204 13b2bc37 2022-10-23 stsp 			name = strdup(node->field + 8);
205 13b2bc37 2022-10-23 stsp 			if (name == NULL) {
206 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
207 13b2bc37 2022-10-23 stsp 				goto done;
208 13b2bc37 2022-10-23 stsp 			}
209 13b2bc37 2022-10-23 stsp 			end = strrchr(name, '"');
210 13b2bc37 2022-10-23 stsp 			if (end)
211 13b2bc37 2022-10-23 stsp 				*end = '\0';
212 13b2bc37 2022-10-23 stsp 			remote->name = name;
213 13b2bc37 2022-10-23 stsp 
214 13b2bc37 2022-10-23 stsp 			fetch_url = got_gitconfig_get_str(gitconfig,
215 13b2bc37 2022-10-23 stsp 			    node->field, "url");
216 13b2bc37 2022-10-23 stsp 			if (fetch_url == NULL) {
217 13b2bc37 2022-10-23 stsp 				err = got_error(GOT_ERR_GITCONFIG_SYNTAX);
218 13b2bc37 2022-10-23 stsp 				free(remote->name);
219 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
220 13b2bc37 2022-10-23 stsp 				goto done;
221 13b2bc37 2022-10-23 stsp 			}
222 13b2bc37 2022-10-23 stsp 			remote->fetch_url = strdup(fetch_url);
223 13b2bc37 2022-10-23 stsp 			if (remote->fetch_url == NULL) {
224 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
225 13b2bc37 2022-10-23 stsp 				free(remote->name);
226 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
227 13b2bc37 2022-10-23 stsp 				goto done;
228 13b2bc37 2022-10-23 stsp 			}
229 13b2bc37 2022-10-23 stsp 
230 13b2bc37 2022-10-23 stsp 			send_url = got_gitconfig_get_str(gitconfig,
231 13b2bc37 2022-10-23 stsp 			    node->field, "pushurl");
232 13b2bc37 2022-10-23 stsp 			if (send_url == NULL)
233 13b2bc37 2022-10-23 stsp 				send_url = got_gitconfig_get_str(gitconfig,
234 13b2bc37 2022-10-23 stsp 				    node->field, "url");
235 13b2bc37 2022-10-23 stsp 			if (send_url == NULL) {
236 13b2bc37 2022-10-23 stsp 				err = got_error(GOT_ERR_GITCONFIG_SYNTAX);
237 13b2bc37 2022-10-23 stsp 				free(remote->name);
238 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
239 13b2bc37 2022-10-23 stsp 				free(remote->fetch_url);
240 13b2bc37 2022-10-23 stsp 				remote->fetch_url = NULL;
241 13b2bc37 2022-10-23 stsp 				goto done;
242 13b2bc37 2022-10-23 stsp 			}
243 13b2bc37 2022-10-23 stsp 			remote->send_url = strdup(send_url);
244 13b2bc37 2022-10-23 stsp 			if (remote->send_url == NULL) {
245 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
246 13b2bc37 2022-10-23 stsp 				free(remote->name);
247 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
248 13b2bc37 2022-10-23 stsp 				free(remote->fetch_url);
249 13b2bc37 2022-10-23 stsp 				remote->fetch_url = NULL;
250 13b2bc37 2022-10-23 stsp 				goto done;
251 13b2bc37 2022-10-23 stsp 			}
252 13b2bc37 2022-10-23 stsp 
253 13b2bc37 2022-10-23 stsp 			remote->mirror_references = 0;
254 13b2bc37 2022-10-23 stsp 			mirror = got_gitconfig_get_str(gitconfig, node->field,
255 13b2bc37 2022-10-23 stsp 			    "mirror");
256 13b2bc37 2022-10-23 stsp 			if (mirror != NULL && get_boolean_val(mirror))
257 13b2bc37 2022-10-23 stsp 				remote->mirror_references = 1;
258 13b2bc37 2022-10-23 stsp 
259 13b2bc37 2022-10-23 stsp 			i++;
260 13b2bc37 2022-10-23 stsp 			(*nremotes)++;
261 13b2bc37 2022-10-23 stsp 		}
262 13b2bc37 2022-10-23 stsp 	}
263 13b2bc37 2022-10-23 stsp done:
264 13b2bc37 2022-10-23 stsp 	if (fd != -1)
265 13b2bc37 2022-10-23 stsp 		close(fd);
266 13b2bc37 2022-10-23 stsp 	if (gitconfig)
267 13b2bc37 2022-10-23 stsp 		got_gitconfig_close(gitconfig);
268 13b2bc37 2022-10-23 stsp 	if (err) {
269 b0ac38bb 2023-02-06 mark 		if (extnames && extvals && nextensions) {
270 b0ac38bb 2023-02-06 mark 			for (i = 0; i < (*nextensions); i++) {
271 b0ac38bb 2023-02-06 mark 				free((*extnames)[i]);
272 b0ac38bb 2023-02-06 mark 				free((*extvals)[i]);
273 b0ac38bb 2023-02-06 mark 			}
274 b0ac38bb 2023-02-06 mark 			free(*extnames);
275 b0ac38bb 2023-02-06 mark 			*extnames = NULL;
276 b0ac38bb 2023-02-06 mark 			free(*extvals);
277 b0ac38bb 2023-02-06 mark 			*extvals = NULL;
278 13b2bc37 2022-10-23 stsp 			*nextensions = 0;
279 13b2bc37 2022-10-23 stsp 		}
280 13b2bc37 2022-10-23 stsp 		if (remotes && nremotes) {
281 13b2bc37 2022-10-23 stsp 			for (i = 0; i < (*nremotes); i++) {
282 13b2bc37 2022-10-23 stsp 				struct got_remote_repo *remote;
283 13b2bc37 2022-10-23 stsp 				remote = &(*remotes)[i];
284 13b2bc37 2022-10-23 stsp 				free(remote->name);
285 13b2bc37 2022-10-23 stsp 				free(remote->fetch_url);
286 13b2bc37 2022-10-23 stsp 				free(remote->send_url);
287 13b2bc37 2022-10-23 stsp 			}
288 13b2bc37 2022-10-23 stsp 			free(*remotes);
289 13b2bc37 2022-10-23 stsp 			*remotes = NULL;
290 13b2bc37 2022-10-23 stsp 			*nremotes = 0;
291 13b2bc37 2022-10-23 stsp 		}
292 13b2bc37 2022-10-23 stsp 	}
293 13b2bc37 2022-10-23 stsp 	return err;
294 13b2bc37 2022-10-23 stsp }