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![Elijah Newren](/assets/img/avatar_default.png)
hash.h depends upon and includes repository.h, due to the definition and use of the_hash_algo (defined as the_repository->hash_algo). However, most headers trying to include hash.h are only interested in the layout of the structs like object_id. Move the parts of hash.h that do not depend upon repository.h into a new file hash-ll.h (the "low level" parts of hash.h), and adjust other files to use this new header where the convenience inline functions aren't needed. This allows hash.h and object.h to be fairly small, minimal headers. It also exposes a lot of hidden dependencies on both path.h (which was brought in by repository.h) and repository.h (which was previously implicitly brought in by object.h), so also adjust other files to be more explicit about what they depend upon. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
203 lines
5.4 KiB
C
203 lines
5.4 KiB
C
#include "builtin.h"
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#include "config.h"
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#include "gettext.h"
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#include "lockfile.h"
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#include "credential.h"
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#include "path.h"
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#include "string-list.h"
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#include "parse-options.h"
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#include "write-or-die.h"
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static struct lock_file credential_lock;
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static int parse_credential_file(const char *fn,
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struct credential *c,
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void (*match_cb)(struct credential *),
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void (*other_cb)(struct strbuf *))
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{
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FILE *fh;
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struct strbuf line = STRBUF_INIT;
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struct credential entry = CREDENTIAL_INIT;
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int found_credential = 0;
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fh = fopen(fn, "r");
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if (!fh) {
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if (errno != ENOENT && errno != EACCES)
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die_errno("unable to open %s", fn);
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return found_credential;
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}
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while (strbuf_getline_lf(&line, fh) != EOF) {
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if (!credential_from_url_gently(&entry, line.buf, 1) &&
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entry.username && entry.password &&
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credential_match(c, &entry)) {
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found_credential = 1;
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if (match_cb) {
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match_cb(&entry);
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break;
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}
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}
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else if (other_cb)
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other_cb(&line);
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}
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credential_clear(&entry);
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strbuf_release(&line);
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fclose(fh);
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return found_credential;
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}
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static void print_entry(struct credential *c)
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{
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printf("username=%s\n", c->username);
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printf("password=%s\n", c->password);
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}
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static void print_line(struct strbuf *buf)
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{
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strbuf_addch(buf, '\n');
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write_or_die(get_lock_file_fd(&credential_lock), buf->buf, buf->len);
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}
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static void rewrite_credential_file(const char *fn, struct credential *c,
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struct strbuf *extra)
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{
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int timeout_ms = 1000;
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git_config_get_int("credentialstore.locktimeoutms", &timeout_ms);
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if (hold_lock_file_for_update_timeout(&credential_lock, fn, 0, timeout_ms) < 0)
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die_errno(_("unable to get credential storage lock in %d ms"), timeout_ms);
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if (extra)
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print_line(extra);
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parse_credential_file(fn, c, NULL, print_line);
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if (commit_lock_file(&credential_lock) < 0)
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die_errno("unable to write credential store");
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}
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static void store_credential_file(const char *fn, struct credential *c)
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{
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struct strbuf buf = STRBUF_INIT;
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strbuf_addf(&buf, "%s://", c->protocol);
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strbuf_addstr_urlencode(&buf, c->username, is_rfc3986_unreserved);
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strbuf_addch(&buf, ':');
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strbuf_addstr_urlencode(&buf, c->password, is_rfc3986_unreserved);
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strbuf_addch(&buf, '@');
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if (c->host)
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strbuf_addstr_urlencode(&buf, c->host, is_rfc3986_unreserved);
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if (c->path) {
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strbuf_addch(&buf, '/');
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strbuf_addstr_urlencode(&buf, c->path,
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is_rfc3986_reserved_or_unreserved);
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}
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rewrite_credential_file(fn, c, &buf);
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strbuf_release(&buf);
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}
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static void store_credential(const struct string_list *fns, struct credential *c)
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{
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struct string_list_item *fn;
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/*
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* Sanity check that what we are storing is actually sensible.
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* In particular, we can't make a URL without a protocol field.
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* Without either a host or pathname (depending on the scheme),
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* we have no primary key. And without a username and password,
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* we are not actually storing a credential.
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*/
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if (!c->protocol || !(c->host || c->path) || !c->username || !c->password)
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return;
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for_each_string_list_item(fn, fns)
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if (!access(fn->string, F_OK)) {
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store_credential_file(fn->string, c);
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return;
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}
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/*
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* Write credential to the filename specified by fns->items[0], thus
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* creating it
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*/
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if (fns->nr)
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store_credential_file(fns->items[0].string, c);
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}
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static void remove_credential(const struct string_list *fns, struct credential *c)
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{
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struct string_list_item *fn;
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/*
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* Sanity check that we actually have something to match
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* against. The input we get is a restrictive pattern,
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* so technically a blank credential means "erase everything".
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* But it is too easy to accidentally send this, since it is equivalent
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* to empty input. So explicitly disallow it, and require that the
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* pattern have some actual content to match.
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*/
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if (!c->protocol && !c->host && !c->path && !c->username)
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return;
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for_each_string_list_item(fn, fns)
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if (!access(fn->string, F_OK))
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rewrite_credential_file(fn->string, c, NULL);
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}
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static void lookup_credential(const struct string_list *fns, struct credential *c)
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{
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struct string_list_item *fn;
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for_each_string_list_item(fn, fns)
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if (parse_credential_file(fn->string, c, print_entry, NULL))
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return; /* Found credential */
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}
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int cmd_credential_store(int argc, const char **argv, const char *prefix)
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{
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const char * const usage[] = {
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"git credential-store [<options>] <action>",
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NULL
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};
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const char *op;
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struct credential c = CREDENTIAL_INIT;
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struct string_list fns = STRING_LIST_INIT_DUP;
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char *file = NULL;
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struct option options[] = {
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OPT_STRING(0, "file", &file, "path",
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"fetch and store credentials in <path>"),
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OPT_END()
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};
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umask(077);
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argc = parse_options(argc, (const char **)argv, prefix, options, usage, 0);
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if (argc != 1)
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usage_with_options(usage, options);
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op = argv[0];
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if (file) {
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string_list_append(&fns, file);
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} else {
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if ((file = interpolate_path("~/.git-credentials", 0)))
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string_list_append_nodup(&fns, file);
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file = xdg_config_home("credentials");
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if (file)
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string_list_append_nodup(&fns, file);
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}
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if (!fns.nr)
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die("unable to set up default path; use --file");
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if (credential_read(&c, stdin) < 0)
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die("unable to read credential");
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if (!strcmp(op, "get"))
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lookup_credential(&fns, &c);
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else if (!strcmp(op, "erase"))
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remove_credential(&fns, &c);
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else if (!strcmp(op, "store"))
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store_credential(&fns, &c);
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else
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; /* Ignore unknown operation. */
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string_list_clear(&fns, 0);
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return 0;
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}
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