Revision 3adab6f3a7793253b22a4a7aae34221d19e0236a authored by Junio C Hamano on 09 February 2012, 21:30:52 UTC, committed by Junio C Hamano on 09 February 2012, 21:30:52 UTC
When the user explicitly asked us not to, don't launch an editor. But do everything else the same way as the "edit" case, i.e. leave the comment with verification result in the log template and record the mergesig in the resulting merge commit for later inspection. Based on initiail analysis by Jonathan Nieder. Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent b5c9f1c
credential-store.c
#include "cache.h"
#include "credential.h"
#include "string-list.h"
#include "parse-options.h"
static struct lock_file credential_lock;
static void parse_credential_file(const char *fn,
struct credential *c,
void (*match_cb)(struct credential *),
void (*other_cb)(struct strbuf *))
{
FILE *fh;
struct strbuf line = STRBUF_INIT;
struct credential entry = CREDENTIAL_INIT;
fh = fopen(fn, "r");
if (!fh) {
if (errno != ENOENT)
die_errno("unable to open %s", fn);
return;
}
while (strbuf_getline(&line, fh, '\n') != EOF) {
credential_from_url(&entry, line.buf);
if (entry.username && entry.password &&
credential_match(c, &entry)) {
if (match_cb) {
match_cb(&entry);
break;
}
}
else if (other_cb)
other_cb(&line);
}
credential_clear(&entry);
strbuf_release(&line);
fclose(fh);
}
static void print_entry(struct credential *c)
{
printf("username=%s\n", c->username);
printf("password=%s\n", c->password);
}
static void print_line(struct strbuf *buf)
{
strbuf_addch(buf, '\n');
write_or_die(credential_lock.fd, buf->buf, buf->len);
}
static void rewrite_credential_file(const char *fn, struct credential *c,
struct strbuf *extra)
{
if (hold_lock_file_for_update(&credential_lock, fn, 0) < 0)
die_errno("unable to get credential storage lock");
if (extra)
print_line(extra);
parse_credential_file(fn, c, NULL, print_line);
if (commit_lock_file(&credential_lock) < 0)
die_errno("unable to commit credential store");
}
static void store_credential(const char *fn, struct credential *c)
{
struct strbuf buf = STRBUF_INIT;
/*
* Sanity check that what we are storing is actually sensible.
* In particular, we can't make a URL without a protocol field.
* Without either a host or pathname (depending on the scheme),
* we have no primary key. And without a username and password,
* we are not actually storing a credential.
*/
if (!c->protocol || !(c->host || c->path) ||
!c->username || !c->password)
return;
strbuf_addf(&buf, "%s://", c->protocol);
strbuf_addstr_urlencode(&buf, c->username, 1);
strbuf_addch(&buf, ':');
strbuf_addstr_urlencode(&buf, c->password, 1);
strbuf_addch(&buf, '@');
if (c->host)
strbuf_addstr_urlencode(&buf, c->host, 1);
if (c->path) {
strbuf_addch(&buf, '/');
strbuf_addstr_urlencode(&buf, c->path, 0);
}
rewrite_credential_file(fn, c, &buf);
strbuf_release(&buf);
}
static void remove_credential(const char *fn, struct credential *c)
{
/*
* Sanity check that we actually have something to match
* against. The input we get is a restrictive pattern,
* so technically a blank credential means "erase everything".
* But it is too easy to accidentally send this, since it is equivalent
* to empty input. So explicitly disallow it, and require that the
* pattern have some actual content to match.
*/
if (c->protocol || c->host || c->path || c->username)
rewrite_credential_file(fn, c, NULL);
}
static int lookup_credential(const char *fn, struct credential *c)
{
parse_credential_file(fn, c, print_entry, NULL);
return c->username && c->password;
}
int main(int argc, const char **argv)
{
const char * const usage[] = {
"git credential-store [options] <action>",
NULL
};
const char *op;
struct credential c = CREDENTIAL_INIT;
char *file = NULL;
struct option options[] = {
OPT_STRING(0, "file", &file, "path",
"fetch and store credentials in <path>"),
OPT_END()
};
umask(077);
argc = parse_options(argc, argv, NULL, options, usage, 0);
if (argc != 1)
usage_with_options(usage, options);
op = argv[0];
if (!file)
file = expand_user_path("~/.git-credentials");
if (!file)
die("unable to set up default path; use --file");
if (credential_read(&c, stdin) < 0)
die("unable to read credential");
if (!strcmp(op, "get"))
lookup_credential(file, &c);
else if (!strcmp(op, "erase"))
remove_credential(file, &c);
else if (!strcmp(op, "store"))
store_credential(file, &c);
else
; /* Ignore unknown operation. */
return 0;
}
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