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 69c6accf 2023-02-04 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 92db0871 2023-02-04 op     char **gitconfig_owner, char **objectformat,
 59 92db0871 2023-02-04 op     char ***extensions, int *nextensions,
 60 13b2bc37 2022-10-23 stsp     const char *gitconfig_path)
 61 13b2bc37 2022-10-23 stsp {
 62 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
 63 13b2bc37 2022-10-23 stsp 	struct got_gitconfig *gitconfig = NULL;
 64 13b2bc37 2022-10-23 stsp 	struct got_gitconfig_list *tags;
 65 13b2bc37 2022-10-23 stsp 	struct got_gitconfig_list_node *node;
 66 13b2bc37 2022-10-23 stsp 	int fd, i;
 67 13b2bc37 2022-10-23 stsp 	const char *author, *email, *owner;
 68 13b2bc37 2022-10-23 stsp 
 69 13b2bc37 2022-10-23 stsp 	*gitconfig_repository_format_version = 0;
 70 13b2bc37 2022-10-23 stsp 	if (extensions)
 71 13b2bc37 2022-10-23 stsp 		*extensions = NULL;
 72 13b2bc37 2022-10-23 stsp 	if (nextensions)
 73 13b2bc37 2022-10-23 stsp 		*nextensions = 0;
 74 13b2bc37 2022-10-23 stsp 	*gitconfig_author_name = NULL;
 75 13b2bc37 2022-10-23 stsp 	*gitconfig_author_email = NULL;
 76 13b2bc37 2022-10-23 stsp 	if (remotes)
 77 13b2bc37 2022-10-23 stsp 		*remotes = NULL;
 78 13b2bc37 2022-10-23 stsp 	if (nremotes)
 79 13b2bc37 2022-10-23 stsp 		*nremotes = 0;
 80 13b2bc37 2022-10-23 stsp 	if (gitconfig_owner)
 81 13b2bc37 2022-10-23 stsp 		*gitconfig_owner = NULL;
 82 13b2bc37 2022-10-23 stsp 
 83 13b2bc37 2022-10-23 stsp 	fd = open(gitconfig_path, O_RDONLY | O_CLOEXEC);
 84 13b2bc37 2022-10-23 stsp 	if (fd == -1) {
 85 13b2bc37 2022-10-23 stsp 		if (errno == ENOENT)
 86 13b2bc37 2022-10-23 stsp 			return NULL;
 87 13b2bc37 2022-10-23 stsp 		return got_error_from_errno2("open", gitconfig_path);
 88 13b2bc37 2022-10-23 stsp 	}
 89 13b2bc37 2022-10-23 stsp 
 90 13b2bc37 2022-10-23 stsp 	err = got_gitconfig_open(&gitconfig, fd);
 91 13b2bc37 2022-10-23 stsp 	if (err)
 92 13b2bc37 2022-10-23 stsp 		goto done;
 93 13b2bc37 2022-10-23 stsp 
 94 13b2bc37 2022-10-23 stsp 	*gitconfig_repository_format_version = got_gitconfig_get_num(gitconfig,
 95 13b2bc37 2022-10-23 stsp 	    "core", "repositoryformatversion", 0);
 96 13b2bc37 2022-10-23 stsp 
 97 13b2bc37 2022-10-23 stsp 	tags = got_gitconfig_get_tag_list(gitconfig, "extensions");
 98 13b2bc37 2022-10-23 stsp 	if (extensions && nextensions && tags) {
 99 13b2bc37 2022-10-23 stsp 		size_t numext = 0;
100 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &tags->fields, link) {
101 13b2bc37 2022-10-23 stsp 			char *ext = node->field;
102 13b2bc37 2022-10-23 stsp 			char *val = got_gitconfig_get_str(gitconfig,
103 13b2bc37 2022-10-23 stsp 			    "extensions", ext);
104 13b2bc37 2022-10-23 stsp 			if (get_boolean_val(val))
105 13b2bc37 2022-10-23 stsp 				numext++;
106 13b2bc37 2022-10-23 stsp 		}
107 13b2bc37 2022-10-23 stsp 		*extensions = calloc(numext, sizeof(char *));
108 13b2bc37 2022-10-23 stsp 		if (*extensions == NULL) {
109 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("calloc");
110 13b2bc37 2022-10-23 stsp 			goto done;
111 13b2bc37 2022-10-23 stsp 		}
112 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &tags->fields, link) {
113 13b2bc37 2022-10-23 stsp 			char *ext = node->field;
114 13b2bc37 2022-10-23 stsp 			char *val = got_gitconfig_get_str(gitconfig,
115 13b2bc37 2022-10-23 stsp 			    "extensions", ext);
116 13b2bc37 2022-10-23 stsp 			if (get_boolean_val(val)) {
117 13b2bc37 2022-10-23 stsp 				char *extstr = strdup(ext);
118 13b2bc37 2022-10-23 stsp 				if (extstr == NULL) {
119 13b2bc37 2022-10-23 stsp 					err = got_error_from_errno("strdup");
120 13b2bc37 2022-10-23 stsp 					goto done;
121 13b2bc37 2022-10-23 stsp 				}
122 13b2bc37 2022-10-23 stsp 				(*extensions)[(*nextensions)] = extstr;
123 13b2bc37 2022-10-23 stsp 				(*nextensions)++;
124 13b2bc37 2022-10-23 stsp 			}
125 01f02e60 2023-02-04 op 			if (objectformat && !strcmp(ext, "sha256")) {
126 92db0871 2023-02-04 op 				free(*objectformat);
127 01f02e60 2023-02-04 op 				*objectformat = strdup(val);
128 92db0871 2023-02-04 op 				if (*objectformat == NULL) {
129 92db0871 2023-02-04 op 					err = got_error_from_errno("strdup");
130 92db0871 2023-02-04 op 					goto done;
131 92db0871 2023-02-04 op 				}
132 92db0871 2023-02-04 op 			}
133 13b2bc37 2022-10-23 stsp 		}
134 13b2bc37 2022-10-23 stsp 	}
135 13b2bc37 2022-10-23 stsp 
136 13b2bc37 2022-10-23 stsp 	author = got_gitconfig_get_str(gitconfig, "user", "name");
137 13b2bc37 2022-10-23 stsp 	if (author) {
138 13b2bc37 2022-10-23 stsp 		*gitconfig_author_name = strdup(author);
139 13b2bc37 2022-10-23 stsp 		if (*gitconfig_author_name == NULL) {
140 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("strdup");
141 13b2bc37 2022-10-23 stsp 			goto done;
142 13b2bc37 2022-10-23 stsp 		}
143 13b2bc37 2022-10-23 stsp 	}
144 13b2bc37 2022-10-23 stsp 
145 13b2bc37 2022-10-23 stsp 	email = got_gitconfig_get_str(gitconfig, "user", "email");
146 13b2bc37 2022-10-23 stsp 	if (email) {
147 13b2bc37 2022-10-23 stsp 		*gitconfig_author_email = strdup(email);
148 13b2bc37 2022-10-23 stsp 		if (*gitconfig_author_email == NULL) {
149 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("strdup");
150 13b2bc37 2022-10-23 stsp 			goto done;
151 13b2bc37 2022-10-23 stsp 		}
152 13b2bc37 2022-10-23 stsp 	}
153 13b2bc37 2022-10-23 stsp 
154 13b2bc37 2022-10-23 stsp 	if (gitconfig_owner) {
155 13b2bc37 2022-10-23 stsp 		owner = got_gitconfig_get_str(gitconfig, "gotweb", "owner");
156 13b2bc37 2022-10-23 stsp 		if (owner == NULL)
157 13b2bc37 2022-10-23 stsp 			owner = got_gitconfig_get_str(gitconfig, "gitweb",
158 13b2bc37 2022-10-23 stsp 			    "owner");
159 13b2bc37 2022-10-23 stsp 		if (owner) {
160 13b2bc37 2022-10-23 stsp 			*gitconfig_owner = strdup(owner);
161 13b2bc37 2022-10-23 stsp 			if (*gitconfig_owner == NULL) {
162 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
163 13b2bc37 2022-10-23 stsp 				goto done;
164 13b2bc37 2022-10-23 stsp 			}
165 13b2bc37 2022-10-23 stsp 
166 13b2bc37 2022-10-23 stsp 		}
167 13b2bc37 2022-10-23 stsp 	}
168 13b2bc37 2022-10-23 stsp 
169 13b2bc37 2022-10-23 stsp 	if (remotes && nremotes) {
170 13b2bc37 2022-10-23 stsp 		struct got_gitconfig_list *sections;
171 13b2bc37 2022-10-23 stsp 		size_t nalloc = 0;
172 13b2bc37 2022-10-23 stsp 		err = got_gitconfig_get_section_list(&sections, gitconfig);
173 13b2bc37 2022-10-23 stsp 		if (err)
174 13b2bc37 2022-10-23 stsp 			return err;
175 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &sections->fields, link) {
176 13b2bc37 2022-10-23 stsp 			if (strncasecmp("remote \"", node->field, 8) != 0)
177 13b2bc37 2022-10-23 stsp 				continue;
178 13b2bc37 2022-10-23 stsp 			nalloc++;
179 13b2bc37 2022-10-23 stsp 		}
180 13b2bc37 2022-10-23 stsp 
181 13b2bc37 2022-10-23 stsp 		*remotes = recallocarray(NULL, 0, nalloc, sizeof(**remotes));
182 13b2bc37 2022-10-23 stsp 		if (*remotes == NULL) {
183 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("recallocarray");
184 13b2bc37 2022-10-23 stsp 			goto done;
185 13b2bc37 2022-10-23 stsp 		}
186 13b2bc37 2022-10-23 stsp 
187 13b2bc37 2022-10-23 stsp 		i = 0;
188 13b2bc37 2022-10-23 stsp 		TAILQ_FOREACH(node, &sections->fields, link) {
189 13b2bc37 2022-10-23 stsp 			struct got_remote_repo *remote;
190 13b2bc37 2022-10-23 stsp 			char *name, *end, *mirror;
191 13b2bc37 2022-10-23 stsp 			const char *fetch_url, *send_url;
192 13b2bc37 2022-10-23 stsp 
193 13b2bc37 2022-10-23 stsp 			if (strncasecmp("remote \"", node->field, 8) != 0)
194 13b2bc37 2022-10-23 stsp 				continue;
195 13b2bc37 2022-10-23 stsp 
196 13b2bc37 2022-10-23 stsp 			remote = &(*remotes)[i];
197 13b2bc37 2022-10-23 stsp 
198 13b2bc37 2022-10-23 stsp 			name = strdup(node->field + 8);
199 13b2bc37 2022-10-23 stsp 			if (name == NULL) {
200 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
201 13b2bc37 2022-10-23 stsp 				goto done;
202 13b2bc37 2022-10-23 stsp 			}
203 13b2bc37 2022-10-23 stsp 			end = strrchr(name, '"');
204 13b2bc37 2022-10-23 stsp 			if (end)
205 13b2bc37 2022-10-23 stsp 				*end = '\0';
206 13b2bc37 2022-10-23 stsp 			remote->name = name;
207 13b2bc37 2022-10-23 stsp 
208 13b2bc37 2022-10-23 stsp 			fetch_url = got_gitconfig_get_str(gitconfig,
209 13b2bc37 2022-10-23 stsp 			    node->field, "url");
210 13b2bc37 2022-10-23 stsp 			if (fetch_url == NULL) {
211 13b2bc37 2022-10-23 stsp 				err = got_error(GOT_ERR_GITCONFIG_SYNTAX);
212 13b2bc37 2022-10-23 stsp 				free(remote->name);
213 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
214 13b2bc37 2022-10-23 stsp 				goto done;
215 13b2bc37 2022-10-23 stsp 			}
216 13b2bc37 2022-10-23 stsp 			remote->fetch_url = strdup(fetch_url);
217 13b2bc37 2022-10-23 stsp 			if (remote->fetch_url == NULL) {
218 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
219 13b2bc37 2022-10-23 stsp 				free(remote->name);
220 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
221 13b2bc37 2022-10-23 stsp 				goto done;
222 13b2bc37 2022-10-23 stsp 			}
223 13b2bc37 2022-10-23 stsp 
224 13b2bc37 2022-10-23 stsp 			send_url = got_gitconfig_get_str(gitconfig,
225 13b2bc37 2022-10-23 stsp 			    node->field, "pushurl");
226 13b2bc37 2022-10-23 stsp 			if (send_url == NULL)
227 13b2bc37 2022-10-23 stsp 				send_url = got_gitconfig_get_str(gitconfig,
228 13b2bc37 2022-10-23 stsp 				    node->field, "url");
229 13b2bc37 2022-10-23 stsp 			if (send_url == NULL) {
230 13b2bc37 2022-10-23 stsp 				err = got_error(GOT_ERR_GITCONFIG_SYNTAX);
231 13b2bc37 2022-10-23 stsp 				free(remote->name);
232 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
233 13b2bc37 2022-10-23 stsp 				free(remote->fetch_url);
234 13b2bc37 2022-10-23 stsp 				remote->fetch_url = NULL;
235 13b2bc37 2022-10-23 stsp 				goto done;
236 13b2bc37 2022-10-23 stsp 			}
237 13b2bc37 2022-10-23 stsp 			remote->send_url = strdup(send_url);
238 13b2bc37 2022-10-23 stsp 			if (remote->send_url == NULL) {
239 13b2bc37 2022-10-23 stsp 				err = got_error_from_errno("strdup");
240 13b2bc37 2022-10-23 stsp 				free(remote->name);
241 13b2bc37 2022-10-23 stsp 				remote->name = NULL;
242 13b2bc37 2022-10-23 stsp 				free(remote->fetch_url);
243 13b2bc37 2022-10-23 stsp 				remote->fetch_url = NULL;
244 13b2bc37 2022-10-23 stsp 				goto done;
245 13b2bc37 2022-10-23 stsp 			}
246 13b2bc37 2022-10-23 stsp 
247 13b2bc37 2022-10-23 stsp 			remote->mirror_references = 0;
248 13b2bc37 2022-10-23 stsp 			mirror = got_gitconfig_get_str(gitconfig, node->field,
249 13b2bc37 2022-10-23 stsp 			    "mirror");
250 13b2bc37 2022-10-23 stsp 			if (mirror != NULL && get_boolean_val(mirror))
251 13b2bc37 2022-10-23 stsp 				remote->mirror_references = 1;
252 13b2bc37 2022-10-23 stsp 
253 13b2bc37 2022-10-23 stsp 			i++;
254 13b2bc37 2022-10-23 stsp 			(*nremotes)++;
255 13b2bc37 2022-10-23 stsp 		}
256 13b2bc37 2022-10-23 stsp 	}
257 13b2bc37 2022-10-23 stsp done:
258 13b2bc37 2022-10-23 stsp 	if (fd != -1)
259 13b2bc37 2022-10-23 stsp 		close(fd);
260 13b2bc37 2022-10-23 stsp 	if (gitconfig)
261 13b2bc37 2022-10-23 stsp 		got_gitconfig_close(gitconfig);
262 13b2bc37 2022-10-23 stsp 	if (err) {
263 13b2bc37 2022-10-23 stsp 		if (extensions && nextensions) {
264 13b2bc37 2022-10-23 stsp 			for (i = 0; i < (*nextensions); i++)
265 13b2bc37 2022-10-23 stsp 				free((*extensions)[i]);
266 13b2bc37 2022-10-23 stsp 			free(*extensions);
267 13b2bc37 2022-10-23 stsp 			*extensions = NULL;
268 13b2bc37 2022-10-23 stsp 			*nextensions = 0;
269 13b2bc37 2022-10-23 stsp 		}
270 13b2bc37 2022-10-23 stsp 		if (remotes && nremotes) {
271 13b2bc37 2022-10-23 stsp 			for (i = 0; i < (*nremotes); i++) {
272 13b2bc37 2022-10-23 stsp 				struct got_remote_repo *remote;
273 13b2bc37 2022-10-23 stsp 				remote = &(*remotes)[i];
274 13b2bc37 2022-10-23 stsp 				free(remote->name);
275 13b2bc37 2022-10-23 stsp 				free(remote->fetch_url);
276 13b2bc37 2022-10-23 stsp 				free(remote->send_url);
277 13b2bc37 2022-10-23 stsp 			}
278 13b2bc37 2022-10-23 stsp 			free(*remotes);
279 13b2bc37 2022-10-23 stsp 			*remotes = NULL;
280 13b2bc37 2022-10-23 stsp 			*nremotes = 0;
281 13b2bc37 2022-10-23 stsp 		}
282 13b2bc37 2022-10-23 stsp 	}
283 13b2bc37 2022-10-23 stsp 	return err;
284 13b2bc37 2022-10-23 stsp }