зеркало из https://github.com/microsoft/git.git
contrib: add credential helper for libsecret
This is based on the existing gnome-keyring helper, but instead of libgnome-keyring (which was specific to GNOME and is deprecated), it uses libsecret which can support other implementations of XDG Secret Service API. Passes t0303-credential-external.sh. Signed-off-by: Mantas Mikulėnas <grawity@gmail.com> Reviewed-by: Dennis Kaarsemaker <dennis@kaarsemaker.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Родитель
0b65a8dbdb
Коммит
87d1353a6a
|
@ -0,0 +1,25 @@
|
|||
MAIN:=git-credential-libsecret
|
||||
all:: $(MAIN)
|
||||
|
||||
CC = gcc
|
||||
RM = rm -f
|
||||
CFLAGS = -g -O2 -Wall
|
||||
PKG_CONFIG = pkg-config
|
||||
|
||||
-include ../../../config.mak.autogen
|
||||
-include ../../../config.mak
|
||||
|
||||
INCS:=$(shell $(PKG_CONFIG) --cflags libsecret-1 glib-2.0)
|
||||
LIBS:=$(shell $(PKG_CONFIG) --libs libsecret-1 glib-2.0)
|
||||
|
||||
SRCS:=$(MAIN).c
|
||||
OBJS:=$(SRCS:.c=.o)
|
||||
|
||||
%.o: %.c
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) $(INCS) -o $@ -c $<
|
||||
|
||||
$(MAIN): $(OBJS)
|
||||
$(CC) -o $@ $(LDFLAGS) $^ $(LIBS)
|
||||
|
||||
clean:
|
||||
@$(RM) $(MAIN) $(OBJS)
|
|
@ -0,0 +1,370 @@
|
|||
/*
|
||||
* Copyright (C) 2011 John Szakmeister <john@szakmeister.net>
|
||||
* 2012 Philipp A. Hartmann <pah@qo.cx>
|
||||
* 2016 Mantas Mikulėnas <grawity@gmail.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
* Credits:
|
||||
* - GNOME Keyring API handling originally written by John Szakmeister
|
||||
* - ported to credential helper API by Philipp A. Hartmann
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <glib.h>
|
||||
#include <libsecret/secret.h>
|
||||
|
||||
/*
|
||||
* This credential struct and API is simplified from git's credential.{h,c}
|
||||
*/
|
||||
struct credential {
|
||||
char *protocol;
|
||||
char *host;
|
||||
unsigned short port;
|
||||
char *path;
|
||||
char *username;
|
||||
char *password;
|
||||
};
|
||||
|
||||
#define CREDENTIAL_INIT { NULL, NULL, 0, NULL, NULL, NULL }
|
||||
|
||||
typedef int (*credential_op_cb)(struct credential *);
|
||||
|
||||
struct credential_operation {
|
||||
char *name;
|
||||
credential_op_cb op;
|
||||
};
|
||||
|
||||
#define CREDENTIAL_OP_END { NULL, NULL }
|
||||
|
||||
/* ----------------- Secret Service functions ----------------- */
|
||||
|
||||
static char *make_label(struct credential *c)
|
||||
{
|
||||
if (c->port)
|
||||
return g_strdup_printf("Git: %s://%s:%hu/%s",
|
||||
c->protocol, c->host, c->port, c->path ? c->path : "");
|
||||
else
|
||||
return g_strdup_printf("Git: %s://%s/%s",
|
||||
c->protocol, c->host, c->path ? c->path : "");
|
||||
}
|
||||
|
||||
static GHashTable *make_attr_list(struct credential *c)
|
||||
{
|
||||
GHashTable *al = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
|
||||
|
||||
if (c->username)
|
||||
g_hash_table_insert(al, "user", g_strdup(c->username));
|
||||
if (c->protocol)
|
||||
g_hash_table_insert(al, "protocol", g_strdup(c->protocol));
|
||||
if (c->host)
|
||||
g_hash_table_insert(al, "server", g_strdup(c->host));
|
||||
if (c->port)
|
||||
g_hash_table_insert(al, "port", g_strdup_printf("%hu", c->port));
|
||||
if (c->path)
|
||||
g_hash_table_insert(al, "object", g_strdup(c->path));
|
||||
|
||||
return al;
|
||||
}
|
||||
|
||||
static int keyring_get(struct credential *c)
|
||||
{
|
||||
SecretService *service = NULL;
|
||||
GHashTable *attributes = NULL;
|
||||
GError *error = NULL;
|
||||
GList *items = NULL;
|
||||
|
||||
if (!c->protocol || !(c->host || c->path))
|
||||
return EXIT_FAILURE;
|
||||
|
||||
service = secret_service_get_sync(0, NULL, &error);
|
||||
if (error != NULL) {
|
||||
g_critical("could not connect to Secret Service: %s", error->message);
|
||||
g_error_free(error);
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
||||
attributes = make_attr_list(c);
|
||||
items = secret_service_search_sync(service,
|
||||
SECRET_SCHEMA_COMPAT_NETWORK,
|
||||
attributes,
|
||||
SECRET_SEARCH_LOAD_SECRETS,
|
||||
NULL,
|
||||
&error);
|
||||
g_hash_table_unref(attributes);
|
||||
if (error != NULL) {
|
||||
g_critical("lookup failed: %s", error->message);
|
||||
g_error_free(error);
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
||||
if (items != NULL) {
|
||||
SecretItem *item;
|
||||
SecretValue *secret;
|
||||
const char *s;
|
||||
|
||||
item = items->data;
|
||||
secret = secret_item_get_secret(item);
|
||||
attributes = secret_item_get_attributes(item);
|
||||
|
||||
s = g_hash_table_lookup(attributes, "user");
|
||||
if (s) {
|
||||
g_free(c->username);
|
||||
c->username = g_strdup(s);
|
||||
}
|
||||
|
||||
s = secret_value_get_text(secret);
|
||||
if (s) {
|
||||
g_free(c->password);
|
||||
c->password = g_strdup(s);
|
||||
}
|
||||
|
||||
g_hash_table_unref(attributes);
|
||||
secret_value_unref(secret);
|
||||
g_list_free_full(items, g_object_unref);
|
||||
}
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
static int keyring_store(struct credential *c)
|
||||
{
|
||||
char *label = NULL;
|
||||
GHashTable *attributes = NULL;
|
||||
GError *error = NULL;
|
||||
|
||||
/*
|
||||
* 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 EXIT_FAILURE;
|
||||
|
||||
label = make_label(c);
|
||||
attributes = make_attr_list(c);
|
||||
secret_password_storev_sync(SECRET_SCHEMA_COMPAT_NETWORK,
|
||||
attributes,
|
||||
NULL,
|
||||
label,
|
||||
c->password,
|
||||
NULL,
|
||||
&error);
|
||||
g_free(label);
|
||||
g_hash_table_unref(attributes);
|
||||
|
||||
if (error != NULL) {
|
||||
g_critical("store failed: %s", error->message);
|
||||
g_error_free(error);
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
static int keyring_erase(struct credential *c)
|
||||
{
|
||||
GHashTable *attributes = NULL;
|
||||
GError *error = NULL;
|
||||
|
||||
/*
|
||||
* 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)
|
||||
return EXIT_FAILURE;
|
||||
|
||||
attributes = make_attr_list(c);
|
||||
secret_password_clearv_sync(SECRET_SCHEMA_COMPAT_NETWORK,
|
||||
attributes,
|
||||
NULL,
|
||||
&error);
|
||||
g_hash_table_unref(attributes);
|
||||
|
||||
if (error != NULL) {
|
||||
g_critical("erase failed: %s", error->message);
|
||||
g_error_free(error);
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
/*
|
||||
* Table with helper operation callbacks, used by generic
|
||||
* credential helper main function.
|
||||
*/
|
||||
static struct credential_operation const credential_helper_ops[] = {
|
||||
{ "get", keyring_get },
|
||||
{ "store", keyring_store },
|
||||
{ "erase", keyring_erase },
|
||||
CREDENTIAL_OP_END
|
||||
};
|
||||
|
||||
/* ------------------ credential functions ------------------ */
|
||||
|
||||
static void credential_init(struct credential *c)
|
||||
{
|
||||
memset(c, 0, sizeof(*c));
|
||||
}
|
||||
|
||||
static void credential_clear(struct credential *c)
|
||||
{
|
||||
g_free(c->protocol);
|
||||
g_free(c->host);
|
||||
g_free(c->path);
|
||||
g_free(c->username);
|
||||
g_free(c->password);
|
||||
|
||||
credential_init(c);
|
||||
}
|
||||
|
||||
static int credential_read(struct credential *c)
|
||||
{
|
||||
char *buf;
|
||||
size_t line_len;
|
||||
char *key;
|
||||
char *value;
|
||||
|
||||
key = buf = g_malloc(1024);
|
||||
|
||||
while (fgets(buf, 1024, stdin)) {
|
||||
line_len = strlen(buf);
|
||||
|
||||
if (line_len && buf[line_len-1] == '\n')
|
||||
buf[--line_len] = '\0';
|
||||
|
||||
if (!line_len)
|
||||
break;
|
||||
|
||||
value = strchr(buf, '=');
|
||||
if (!value) {
|
||||
g_warning("invalid credential line: %s", key);
|
||||
g_free(buf);
|
||||
return -1;
|
||||
}
|
||||
*value++ = '\0';
|
||||
|
||||
if (!strcmp(key, "protocol")) {
|
||||
g_free(c->protocol);
|
||||
c->protocol = g_strdup(value);
|
||||
} else if (!strcmp(key, "host")) {
|
||||
g_free(c->host);
|
||||
c->host = g_strdup(value);
|
||||
value = strrchr(c->host, ':');
|
||||
if (value) {
|
||||
*value++ = '\0';
|
||||
c->port = atoi(value);
|
||||
}
|
||||
} else if (!strcmp(key, "path")) {
|
||||
g_free(c->path);
|
||||
c->path = g_strdup(value);
|
||||
} else if (!strcmp(key, "username")) {
|
||||
g_free(c->username);
|
||||
c->username = g_strdup(value);
|
||||
} else if (!strcmp(key, "password")) {
|
||||
g_free(c->password);
|
||||
c->password = g_strdup(value);
|
||||
while (*value)
|
||||
*value++ = '\0';
|
||||
}
|
||||
/*
|
||||
* Ignore other lines; we don't know what they mean, but
|
||||
* this future-proofs us when later versions of git do
|
||||
* learn new lines, and the helpers are updated to match.
|
||||
*/
|
||||
}
|
||||
|
||||
g_free(buf);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void credential_write_item(FILE *fp, const char *key, const char *value)
|
||||
{
|
||||
if (!value)
|
||||
return;
|
||||
fprintf(fp, "%s=%s\n", key, value);
|
||||
}
|
||||
|
||||
static void credential_write(const struct credential *c)
|
||||
{
|
||||
/* only write username/password, if set */
|
||||
credential_write_item(stdout, "username", c->username);
|
||||
credential_write_item(stdout, "password", c->password);
|
||||
}
|
||||
|
||||
static void usage(const char *name)
|
||||
{
|
||||
struct credential_operation const *try_op = credential_helper_ops;
|
||||
const char *basename = strrchr(name, '/');
|
||||
|
||||
basename = (basename) ? basename + 1 : name;
|
||||
fprintf(stderr, "usage: %s <", basename);
|
||||
while (try_op->name) {
|
||||
fprintf(stderr, "%s", (try_op++)->name);
|
||||
if (try_op->name)
|
||||
fprintf(stderr, "%s", "|");
|
||||
}
|
||||
fprintf(stderr, "%s", ">\n");
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
int ret = EXIT_SUCCESS;
|
||||
|
||||
struct credential_operation const *try_op = credential_helper_ops;
|
||||
struct credential cred = CREDENTIAL_INIT;
|
||||
|
||||
if (!argv[1]) {
|
||||
usage(argv[0]);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
g_set_application_name("Git Credential Helper");
|
||||
|
||||
/* lookup operation callback */
|
||||
while (try_op->name && strcmp(argv[1], try_op->name))
|
||||
try_op++;
|
||||
|
||||
/* unsupported operation given -- ignore silently */
|
||||
if (!try_op->name || !try_op->op)
|
||||
goto out;
|
||||
|
||||
ret = credential_read(&cred);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
/* perform credential operation */
|
||||
ret = (*try_op->op)(&cred);
|
||||
|
||||
credential_write(&cred);
|
||||
|
||||
out:
|
||||
credential_clear(&cred);
|
||||
return ret;
|
||||
}
|
Загрузка…
Ссылка в новой задаче