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-rw-r--r--contrib/credential/gnome-keyring/.gitignore1
-rw-r--r--contrib/credential/gnome-keyring/Makefile24
-rw-r--r--contrib/credential/gnome-keyring/git-credential-gnome-keyring.c445
-rw-r--r--contrib/credential/osxkeychain/.gitignore1
-rw-r--r--contrib/credential/osxkeychain/Makefile17
-rw-r--r--contrib/credential/osxkeychain/git-credential-osxkeychain.c173
-rw-r--r--contrib/credential/wincred/Makefile14
-rw-r--r--contrib/credential/wincred/git-credential-wincred.c357
8 files changed, 1032 insertions, 0 deletions
diff --git a/contrib/credential/gnome-keyring/.gitignore b/contrib/credential/gnome-keyring/.gitignore
new file mode 100644
index 0000000000..88d8fcdbce
--- /dev/null
+++ b/contrib/credential/gnome-keyring/.gitignore
@@ -0,0 +1 @@
+git-credential-gnome-keyring
diff --git a/contrib/credential/gnome-keyring/Makefile b/contrib/credential/gnome-keyring/Makefile
new file mode 100644
index 0000000000..e6561d8db6
--- /dev/null
+++ b/contrib/credential/gnome-keyring/Makefile
@@ -0,0 +1,24 @@
+MAIN:=git-credential-gnome-keyring
+all:: $(MAIN)
+
+CC = gcc
+RM = rm -f
+CFLAGS = -g -O2 -Wall
+
+-include ../../../config.mak.autogen
+-include ../../../config.mak
+
+INCS:=$(shell pkg-config --cflags gnome-keyring-1)
+LIBS:=$(shell pkg-config --libs gnome-keyring-1)
+
+SRCS:=$(MAIN).c
+OBJS:=$(SRCS:.c=.o)
+
+%.o: %.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(INCS) -o $@ -c $<
+
+$(MAIN): $(OBJS)
+ $(CC) -o $@ $(LDFLAGS) $^ $(LIBS)
+
+clean:
+ @$(RM) $(MAIN) $(OBJS)
diff --git a/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c b/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c
new file mode 100644
index 0000000000..41f61c5db3
--- /dev/null
+++ b/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c
@@ -0,0 +1,445 @@
+/*
+ * Copyright (C) 2011 John Szakmeister <john@szakmeister.net>
+ * 2012 Philipp A. Hartmann <pah@qo.cx>
+ *
+ * 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 <stdarg.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <gnome-keyring.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 }
+
+void credential_init(struct credential *c);
+void credential_clear(struct credential *c);
+int credential_read(struct credential *c);
+void credential_write(const struct credential *c);
+
+typedef int (*credential_op_cb)(struct credential*);
+
+struct credential_operation
+{
+ char *name;
+ credential_op_cb op;
+};
+
+#define CREDENTIAL_OP_END \
+ { NULL,NULL }
+
+/*
+ * Table with operation callbacks is defined in concrete
+ * credential helper implementation and contains entries
+ * like { "get", function_to_get_credential } terminated
+ * by CREDENTIAL_OP_END.
+ */
+struct credential_operation const credential_helper_ops[];
+
+/* ---------------- common helper functions ----------------- */
+
+static inline void free_password(char *password)
+{
+ char *c = password;
+ if (!password)
+ return;
+
+ while (*c) *c++ = '\0';
+ free(password);
+}
+
+static inline void warning(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ fprintf(stderr, "warning: ");
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n" );
+ va_end(ap);
+}
+
+static inline void error(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ fprintf(stderr, "error: ");
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n" );
+ va_end(ap);
+}
+
+static inline void die(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap,fmt);
+ error(fmt, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+static inline void die_errno(int err)
+{
+ error("%s", strerror(err));
+ exit(EXIT_FAILURE);
+}
+
+static inline char *xstrdup(const char *str)
+{
+ char *ret = strdup(str);
+ if (!ret)
+ die_errno(errno);
+
+ return ret;
+}
+
+/* ----------------- GNOME Keyring functions ----------------- */
+
+/* create a special keyring option string, if path is given */
+static char* keyring_object(struct credential *c)
+{
+ char* object = NULL;
+
+ if (!c->path)
+ return object;
+
+ object = (char*) malloc(strlen(c->host)+strlen(c->path)+8);
+ if(!object)
+ die_errno(errno);
+
+ if(c->port)
+ sprintf(object,"%s:%hd/%s",c->host,c->port,c->path);
+ else
+ sprintf(object,"%s/%s",c->host,c->path);
+
+ return object;
+}
+
+int keyring_get(struct credential *c)
+{
+ char* object = NULL;
+ GList *entries;
+ GnomeKeyringNetworkPasswordData *password_data;
+ GnomeKeyringResult result;
+
+ if (!c->protocol || !(c->host || c->path))
+ return EXIT_FAILURE;
+
+ object = keyring_object(c);
+
+ result = gnome_keyring_find_network_password_sync(
+ c->username,
+ NULL /* domain */,
+ c->host,
+ object,
+ c->protocol,
+ NULL /* authtype */,
+ c->port,
+ &entries);
+
+ free(object);
+
+ if (result == GNOME_KEYRING_RESULT_NO_MATCH)
+ return EXIT_SUCCESS;
+
+ if (result == GNOME_KEYRING_RESULT_CANCELLED)
+ return EXIT_SUCCESS;
+
+ if (result != GNOME_KEYRING_RESULT_OK) {
+ error("%s",gnome_keyring_result_to_message(result));
+ return EXIT_FAILURE;
+ }
+
+ /* pick the first one from the list */
+ password_data = (GnomeKeyringNetworkPasswordData *) entries->data;
+
+ free_password(c->password);
+ c->password = xstrdup(password_data->password);
+
+ if (!c->username)
+ c->username = xstrdup(password_data->user);
+
+ gnome_keyring_network_password_list_free(entries);
+
+ return EXIT_SUCCESS;
+}
+
+
+int keyring_store(struct credential *c)
+{
+ guint32 item_id;
+ char *object = 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;
+
+ object = keyring_object(c);
+
+ gnome_keyring_set_network_password_sync(
+ GNOME_KEYRING_DEFAULT,
+ c->username,
+ NULL /* domain */,
+ c->host,
+ object,
+ c->protocol,
+ NULL /* authtype */,
+ c->port,
+ c->password,
+ &item_id);
+
+ free(object);
+ return EXIT_SUCCESS;
+}
+
+int keyring_erase(struct credential *c)
+{
+ char *object = NULL;
+ GList *entries;
+ GnomeKeyringNetworkPasswordData *password_data;
+ GnomeKeyringResult result;
+
+ /*
+ * 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;
+
+ object = keyring_object(c);
+
+ result = gnome_keyring_find_network_password_sync(
+ c->username,
+ NULL /* domain */,
+ c->host,
+ object,
+ c->protocol,
+ NULL /* authtype */,
+ c->port,
+ &entries);
+
+ free(object);
+
+ if (result == GNOME_KEYRING_RESULT_NO_MATCH)
+ return EXIT_SUCCESS;
+
+ if (result == GNOME_KEYRING_RESULT_CANCELLED)
+ return EXIT_SUCCESS;
+
+ if (result != GNOME_KEYRING_RESULT_OK)
+ {
+ error("%s",gnome_keyring_result_to_message(result));
+ return EXIT_FAILURE;
+ }
+
+ /* pick the first one from the list (delete all matches?) */
+ password_data = (GnomeKeyringNetworkPasswordData *) entries->data;
+
+ result = gnome_keyring_item_delete_sync(
+ password_data->keyring, password_data->item_id);
+
+ gnome_keyring_network_password_list_free(entries);
+
+ if (result != GNOME_KEYRING_RESULT_OK)
+ {
+ error("%s",gnome_keyring_result_to_message(result));
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}
+
+/*
+ * Table with helper operation callbacks, used by generic
+ * credential helper main function.
+ */
+struct credential_operation const credential_helper_ops[] =
+{
+ { "get", keyring_get },
+ { "store", keyring_store },
+ { "erase", keyring_erase },
+ CREDENTIAL_OP_END
+};
+
+/* ------------------ credential functions ------------------ */
+
+void credential_init(struct credential *c)
+{
+ memset(c, 0, sizeof(*c));
+}
+
+void credential_clear(struct credential *c)
+{
+ free(c->protocol);
+ free(c->host);
+ free(c->path);
+ free(c->username);
+ free_password(c->password);
+
+ credential_init(c);
+}
+
+int credential_read(struct credential *c)
+{
+ char buf[1024];
+ ssize_t line_len = 0;
+ char *key = buf;
+ char *value;
+
+ while (fgets(buf, sizeof(buf), stdin))
+ {
+ line_len = strlen(buf);
+
+ if(buf[line_len-1]=='\n')
+ buf[--line_len]='\0';
+
+ if(!line_len)
+ break;
+
+ value = strchr(buf,'=');
+ if(!value) {
+ warning("invalid credential line: %s", key);
+ return -1;
+ }
+ *value++ = '\0';
+
+ if (!strcmp(key, "protocol")) {
+ free(c->protocol);
+ c->protocol = xstrdup(value);
+ } else if (!strcmp(key, "host")) {
+ free(c->host);
+ c->host = xstrdup(value);
+ value = strrchr(c->host,':');
+ if (value) {
+ *value++ = '\0';
+ c->port = atoi(value);
+ }
+ } else if (!strcmp(key, "path")) {
+ free(c->path);
+ c->path = xstrdup(value);
+ } else if (!strcmp(key, "username")) {
+ free(c->username);
+ c->username = xstrdup(value);
+ } else if (!strcmp(key, "password")) {
+ free_password(c->password);
+ c->password = xstrdup(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.
+ */
+ }
+ return 0;
+}
+
+void credential_write_item(FILE *fp, const char *key, const char *value)
+{
+ if (!value)
+ return;
+ fprintf(fp, "%s=%s\n", key, value);
+}
+
+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]);
+ goto out;
+ }
+
+ /* 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;
+}
diff --git a/contrib/credential/osxkeychain/.gitignore b/contrib/credential/osxkeychain/.gitignore
new file mode 100644
index 0000000000..6c5b7026c5
--- /dev/null
+++ b/contrib/credential/osxkeychain/.gitignore
@@ -0,0 +1 @@
+git-credential-osxkeychain
diff --git a/contrib/credential/osxkeychain/Makefile b/contrib/credential/osxkeychain/Makefile
new file mode 100644
index 0000000000..4b3a08a2ba
--- /dev/null
+++ b/contrib/credential/osxkeychain/Makefile
@@ -0,0 +1,17 @@
+all:: git-credential-osxkeychain
+
+CC = gcc
+RM = rm -f
+CFLAGS = -g -O2 -Wall
+
+-include ../../../config.mak.autogen
+-include ../../../config.mak
+
+git-credential-osxkeychain: git-credential-osxkeychain.o
+ $(CC) $(CFLAGS) -o $@ $< $(LDFLAGS) -Wl,-framework -Wl,Security
+
+git-credential-osxkeychain.o: git-credential-osxkeychain.c
+ $(CC) -c $(CFLAGS) $<
+
+clean:
+ $(RM) git-credential-osxkeychain git-credential-osxkeychain.o
diff --git a/contrib/credential/osxkeychain/git-credential-osxkeychain.c b/contrib/credential/osxkeychain/git-credential-osxkeychain.c
new file mode 100644
index 0000000000..6beed123ab
--- /dev/null
+++ b/contrib/credential/osxkeychain/git-credential-osxkeychain.c
@@ -0,0 +1,173 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <Security/Security.h>
+
+static SecProtocolType protocol;
+static char *host;
+static char *path;
+static char *username;
+static char *password;
+static UInt16 port;
+
+static void die(const char *err, ...)
+{
+ char msg[4096];
+ va_list params;
+ va_start(params, err);
+ vsnprintf(msg, sizeof(msg), err, params);
+ fprintf(stderr, "%s\n", msg);
+ va_end(params);
+ exit(1);
+}
+
+static void *xstrdup(const char *s1)
+{
+ void *ret = strdup(s1);
+ if (!ret)
+ die("Out of memory");
+ return ret;
+}
+
+#define KEYCHAIN_ITEM(x) (x ? strlen(x) : 0), x
+#define KEYCHAIN_ARGS \
+ NULL, /* default keychain */ \
+ KEYCHAIN_ITEM(host), \
+ 0, NULL, /* account domain */ \
+ KEYCHAIN_ITEM(username), \
+ KEYCHAIN_ITEM(path), \
+ port, \
+ protocol, \
+ kSecAuthenticationTypeDefault
+
+static void write_item(const char *what, const char *buf, int len)
+{
+ printf("%s=", what);
+ fwrite(buf, 1, len, stdout);
+ putchar('\n');
+}
+
+static void find_username_in_item(SecKeychainItemRef item)
+{
+ SecKeychainAttributeList list;
+ SecKeychainAttribute attr;
+
+ list.count = 1;
+ list.attr = &attr;
+ attr.tag = kSecAccountItemAttr;
+
+ if (SecKeychainItemCopyContent(item, NULL, &list, NULL, NULL))
+ return;
+
+ write_item("username", attr.data, attr.length);
+ SecKeychainItemFreeContent(&list, NULL);
+}
+
+static void find_internet_password(void)
+{
+ void *buf;
+ UInt32 len;
+ SecKeychainItemRef item;
+
+ if (SecKeychainFindInternetPassword(KEYCHAIN_ARGS, &len, &buf, &item))
+ return;
+
+ write_item("password", buf, len);
+ if (!username)
+ find_username_in_item(item);
+
+ SecKeychainItemFreeContent(NULL, buf);
+}
+
+static void delete_internet_password(void)
+{
+ SecKeychainItemRef item;
+
+ /*
+ * Require at least a protocol and host for removal, which is what git
+ * will give us; if you want to do something more fancy, use the
+ * Keychain manager.
+ */
+ if (!protocol || !host)
+ return;
+
+ if (SecKeychainFindInternetPassword(KEYCHAIN_ARGS, 0, NULL, &item))
+ return;
+
+ SecKeychainItemDelete(item);
+}
+
+static void add_internet_password(void)
+{
+ /* Only store complete credentials */
+ if (!protocol || !host || !username || !password)
+ return;
+
+ if (SecKeychainAddInternetPassword(
+ KEYCHAIN_ARGS,
+ KEYCHAIN_ITEM(password),
+ NULL))
+ return;
+}
+
+static void read_credential(void)
+{
+ char buf[1024];
+
+ while (fgets(buf, sizeof(buf), stdin)) {
+ char *v;
+
+ if (!strcmp(buf, "\n"))
+ break;
+ buf[strlen(buf)-1] = '\0';
+
+ v = strchr(buf, '=');
+ if (!v)
+ die("bad input: %s", buf);
+ *v++ = '\0';
+
+ if (!strcmp(buf, "protocol")) {
+ if (!strcmp(v, "https"))
+ protocol = kSecProtocolTypeHTTPS;
+ else if (!strcmp(v, "http"))
+ protocol = kSecProtocolTypeHTTP;
+ else /* we don't yet handle other protocols */
+ exit(0);
+ }
+ else if (!strcmp(buf, "host")) {
+ char *colon = strchr(v, ':');
+ if (colon) {
+ *colon++ = '\0';
+ port = atoi(colon);
+ }
+ host = xstrdup(v);
+ }
+ else if (!strcmp(buf, "path"))
+ path = xstrdup(v);
+ else if (!strcmp(buf, "username"))
+ username = xstrdup(v);
+ else if (!strcmp(buf, "password"))
+ password = xstrdup(v);
+ }
+}
+
+int main(int argc, const char **argv)
+{
+ const char *usage =
+ "Usage: git credential-osxkeychain <get|store|erase>";
+
+ if (!argv[1])
+ die(usage);
+
+ read_credential();
+
+ if (!strcmp(argv[1], "get"))
+ find_internet_password();
+ else if (!strcmp(argv[1], "store"))
+ add_internet_password();
+ else if (!strcmp(argv[1], "erase"))
+ delete_internet_password();
+ /* otherwise, ignore unknown action */
+
+ return 0;
+}
diff --git a/contrib/credential/wincred/Makefile b/contrib/credential/wincred/Makefile
new file mode 100644
index 0000000000..bad45ca47a
--- /dev/null
+++ b/contrib/credential/wincred/Makefile
@@ -0,0 +1,14 @@
+all: git-credential-wincred.exe
+
+CC = gcc
+RM = rm -f
+CFLAGS = -O2 -Wall
+
+-include ../../../config.mak.autogen
+-include ../../../config.mak
+
+git-credential-wincred.exe : git-credential-wincred.c
+ $(LINK.c) $^ $(LOADLIBES) $(LDLIBS) -o $@
+
+clean:
+ $(RM) git-credential-wincred.exe
diff --git a/contrib/credential/wincred/git-credential-wincred.c b/contrib/credential/wincred/git-credential-wincred.c
new file mode 100644
index 0000000000..cbaec5f24b
--- /dev/null
+++ b/contrib/credential/wincred/git-credential-wincred.c
@@ -0,0 +1,357 @@
+/*
+ * A git credential helper that interface with Windows' Credential Manager
+ *
+ */
+#include <windows.h>
+#include <stdio.h>
+#include <io.h>
+#include <fcntl.h>
+
+/* common helpers */
+
+static void die(const char *err, ...)
+{
+ char msg[4096];
+ va_list params;
+ va_start(params, err);
+ vsnprintf(msg, sizeof(msg), err, params);
+ fprintf(stderr, "%s\n", msg);
+ va_end(params);
+ exit(1);
+}
+
+static void *xmalloc(size_t size)
+{
+ void *ret = malloc(size);
+ if (!ret && !size)
+ ret = malloc(1);
+ if (!ret)
+ die("Out of memory");
+ return ret;
+}
+
+static char *xstrdup(const char *str)
+{
+ char *ret = strdup(str);
+ if (!ret)
+ die("Out of memory");
+ return ret;
+}
+
+/* MinGW doesn't have wincred.h, so we need to define stuff */
+
+typedef struct _CREDENTIAL_ATTRIBUTEW {
+ LPWSTR Keyword;
+ DWORD Flags;
+ DWORD ValueSize;
+ LPBYTE Value;
+} CREDENTIAL_ATTRIBUTEW, *PCREDENTIAL_ATTRIBUTEW;
+
+typedef struct _CREDENTIALW {
+ DWORD Flags;
+ DWORD Type;
+ LPWSTR TargetName;
+ LPWSTR Comment;
+ FILETIME LastWritten;
+ DWORD CredentialBlobSize;
+ LPBYTE CredentialBlob;
+ DWORD Persist;
+ DWORD AttributeCount;
+ PCREDENTIAL_ATTRIBUTEW Attributes;
+ LPWSTR TargetAlias;
+ LPWSTR UserName;
+} CREDENTIALW, *PCREDENTIALW;
+
+#define CRED_TYPE_GENERIC 1
+#define CRED_PERSIST_LOCAL_MACHINE 2
+#define CRED_MAX_ATTRIBUTES 64
+
+typedef BOOL (WINAPI *CredWriteWT)(PCREDENTIALW, DWORD);
+typedef BOOL (WINAPI *CredUnPackAuthenticationBufferWT)(DWORD, PVOID, DWORD,
+ LPWSTR, DWORD *, LPWSTR, DWORD *, LPWSTR, DWORD *);
+typedef BOOL (WINAPI *CredEnumerateWT)(LPCWSTR, DWORD, DWORD *,
+ PCREDENTIALW **);
+typedef BOOL (WINAPI *CredPackAuthenticationBufferWT)(DWORD, LPWSTR, LPWSTR,
+ PBYTE, DWORD *);
+typedef VOID (WINAPI *CredFreeT)(PVOID);
+typedef BOOL (WINAPI *CredDeleteWT)(LPCWSTR, DWORD, DWORD);
+
+static HMODULE advapi, credui;
+static CredWriteWT CredWriteW;
+static CredUnPackAuthenticationBufferWT CredUnPackAuthenticationBufferW;
+static CredEnumerateWT CredEnumerateW;
+static CredPackAuthenticationBufferWT CredPackAuthenticationBufferW;
+static CredFreeT CredFree;
+static CredDeleteWT CredDeleteW;
+
+static void load_cred_funcs(void)
+{
+ /* load DLLs */
+ advapi = LoadLibrary("advapi32.dll");
+ credui = LoadLibrary("credui.dll");
+ if (!advapi || !credui)
+ die("failed to load DLLs");
+
+ /* get function pointers */
+ CredWriteW = (CredWriteWT)GetProcAddress(advapi, "CredWriteW");
+ CredUnPackAuthenticationBufferW = (CredUnPackAuthenticationBufferWT)
+ GetProcAddress(credui, "CredUnPackAuthenticationBufferW");
+ CredEnumerateW = (CredEnumerateWT)GetProcAddress(advapi,
+ "CredEnumerateW");
+ CredPackAuthenticationBufferW = (CredPackAuthenticationBufferWT)
+ GetProcAddress(credui, "CredPackAuthenticationBufferW");
+ CredFree = (CredFreeT)GetProcAddress(advapi, "CredFree");
+ CredDeleteW = (CredDeleteWT)GetProcAddress(advapi, "CredDeleteW");
+ if (!CredWriteW || !CredUnPackAuthenticationBufferW ||
+ !CredEnumerateW || !CredPackAuthenticationBufferW || !CredFree ||
+ !CredDeleteW)
+ die("failed to load functions");
+}
+
+static char target_buf[1024];
+static char *protocol, *host, *path, *username;
+static WCHAR *wusername, *password, *target;
+
+static void write_item(const char *what, WCHAR *wbuf)
+{
+ char *buf;
+ int len = WideCharToMultiByte(CP_UTF8, 0, wbuf, -1, NULL, 0, NULL,
+ FALSE);
+ buf = xmalloc(len);
+
+ if (!WideCharToMultiByte(CP_UTF8, 0, wbuf, -1, buf, len, NULL, FALSE))
+ die("WideCharToMultiByte failed!");
+
+ printf("%s=", what);
+ fwrite(buf, 1, len - 1, stdout);
+ putchar('\n');
+ free(buf);
+}
+
+static int match_attr(const CREDENTIALW *cred, const WCHAR *keyword,
+ const char *want)
+{
+ int i;
+ if (!want)
+ return 1;
+
+ for (i = 0; i < cred->AttributeCount; ++i)
+ if (!wcscmp(cred->Attributes[i].Keyword, keyword))
+ return !strcmp((const char *)cred->Attributes[i].Value,
+ want);
+
+ return 0; /* not found */
+}
+
+static int match_cred(const CREDENTIALW *cred)
+{
+ return (!wusername || !wcscmp(wusername, cred->UserName)) &&
+ match_attr(cred, L"git_protocol", protocol) &&
+ match_attr(cred, L"git_host", host) &&
+ match_attr(cred, L"git_path", path);
+}
+
+static void get_credential(void)
+{
+ WCHAR *user_buf, *pass_buf;
+ DWORD user_buf_size = 0, pass_buf_size = 0;
+ CREDENTIALW **creds, *cred = NULL;
+ DWORD num_creds;
+ int i;
+
+ if (!CredEnumerateW(L"git:*", 0, &num_creds, &creds))
+ return;
+
+ /* search for the first credential that matches username */
+ for (i = 0; i < num_creds; ++i)
+ if (match_cred(creds[i])) {
+ cred = creds[i];
+ break;
+ }
+ if (!cred)
+ return;
+
+ CredUnPackAuthenticationBufferW(0, cred->CredentialBlob,
+ cred->CredentialBlobSize, NULL, &user_buf_size, NULL, NULL,
+ NULL, &pass_buf_size);
+
+ user_buf = xmalloc(user_buf_size * sizeof(WCHAR));
+ pass_buf = xmalloc(pass_buf_size * sizeof(WCHAR));
+
+ if (!CredUnPackAuthenticationBufferW(0, cred->CredentialBlob,
+ cred->CredentialBlobSize, user_buf, &user_buf_size, NULL, NULL,
+ pass_buf, &pass_buf_size))
+ die("CredUnPackAuthenticationBuffer failed");
+
+ CredFree(creds);
+
+ /* zero-terminate (sizes include zero-termination) */
+ user_buf[user_buf_size - 1] = L'\0';
+ pass_buf[pass_buf_size - 1] = L'\0';
+
+ write_item("username", user_buf);
+ write_item("password", pass_buf);
+
+ free(user_buf);
+ free(pass_buf);
+}
+
+static void write_attr(CREDENTIAL_ATTRIBUTEW *attr, const WCHAR *keyword,
+ const char *value)
+{
+ attr->Keyword = (LPWSTR)keyword;
+ attr->Flags = 0;
+ attr->ValueSize = strlen(value) + 1; /* store zero-termination */
+ attr->Value = (LPBYTE)value;
+}
+
+static void store_credential(void)
+{
+ CREDENTIALW cred;
+ BYTE *auth_buf;
+ DWORD auth_buf_size = 0;
+ CREDENTIAL_ATTRIBUTEW attrs[CRED_MAX_ATTRIBUTES];
+
+ if (!wusername || !password)
+ return;
+
+ /* query buffer size */
+ CredPackAuthenticationBufferW(0, wusername, password,
+ NULL, &auth_buf_size);
+
+ auth_buf = xmalloc(auth_buf_size);
+
+ if (!CredPackAuthenticationBufferW(0, wusername, password,
+ auth_buf, &auth_buf_size))
+ die("CredPackAuthenticationBuffer failed");
+
+ cred.Flags = 0;
+ cred.Type = CRED_TYPE_GENERIC;
+ cred.TargetName = target;
+ cred.Comment = L"saved by git-credential-wincred";
+ cred.CredentialBlobSize = auth_buf_size;
+ cred.CredentialBlob = auth_buf;
+ cred.Persist = CRED_PERSIST_LOCAL_MACHINE;
+ cred.AttributeCount = 1;
+ cred.Attributes = attrs;
+ cred.TargetAlias = NULL;
+ cred.UserName = wusername;
+
+ write_attr(attrs, L"git_protocol", protocol);
+
+ if (host) {
+ write_attr(attrs + cred.AttributeCount, L"git_host", host);
+ cred.AttributeCount++;
+ }
+
+ if (path) {
+ write_attr(attrs + cred.AttributeCount, L"git_path", path);
+ cred.AttributeCount++;
+ }
+
+ if (!CredWriteW(&cred, 0))
+ die("CredWrite failed");
+}
+
+static void erase_credential(void)
+{
+ CREDENTIALW **creds;
+ DWORD num_creds;
+ int i;
+
+ if (!CredEnumerateW(L"git:*", 0, &num_creds, &creds))
+ return;
+
+ for (i = 0; i < num_creds; ++i) {
+ if (match_cred(creds[i]))
+ CredDeleteW(creds[i]->TargetName, creds[i]->Type, 0);
+ }
+
+ CredFree(creds);
+}
+
+static WCHAR *utf8_to_utf16_dup(const char *str)
+{
+ int wlen = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
+ WCHAR *wstr = xmalloc(sizeof(WCHAR) * wlen);
+ MultiByteToWideChar(CP_UTF8, 0, str, -1, wstr, wlen);
+ return wstr;
+}
+
+static void read_credential(void)
+{
+ char buf[1024];
+
+ while (fgets(buf, sizeof(buf), stdin)) {
+ char *v;
+
+ if (!strcmp(buf, "\n"))
+ break;
+ buf[strlen(buf)-1] = '\0';
+
+ v = strchr(buf, '=');
+ if (!v)
+ die("bad input: %s", buf);
+ *v++ = '\0';
+
+ if (!strcmp(buf, "protocol"))
+ protocol = xstrdup(v);
+ else if (!strcmp(buf, "host"))
+ host = xstrdup(v);
+ else if (!strcmp(buf, "path"))
+ path = xstrdup(v);
+ else if (!strcmp(buf, "username")) {
+ username = xstrdup(v);
+ wusername = utf8_to_utf16_dup(v);
+ } else if (!strcmp(buf, "password"))
+ password = utf8_to_utf16_dup(v);
+ else
+ die("unrecognized input");
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ const char *usage =
+ "Usage: git credential-wincred <get|store|erase>\n";
+
+ if (!argv[1])
+ die(usage);
+
+ /* git use binary pipes to avoid CRLF-issues */
+ _setmode(_fileno(stdin), _O_BINARY);
+ _setmode(_fileno(stdout), _O_BINARY);
+
+ read_credential();
+
+ load_cred_funcs();
+
+ if (!protocol || !(host || path))
+ return 0;
+
+ /* prepare 'target', the unique key for the credential */
+ strncat(target_buf, "git:", sizeof(target_buf));
+ strncat(target_buf, protocol, sizeof(target_buf));
+ strncat(target_buf, "://", sizeof(target_buf));
+ if (username) {
+ strncat(target_buf, username, sizeof(target_buf));
+ strncat(target_buf, "@", sizeof(target_buf));
+ }
+ if (host)
+ strncat(target_buf, host, sizeof(target_buf));
+ if (path) {
+ strncat(target_buf, "/", sizeof(target_buf));
+ strncat(target_buf, path, sizeof(target_buf));
+ }
+
+ target = utf8_to_utf16_dup(target_buf);
+
+ if (!strcmp(argv[1], "get"))
+ get_credential();
+ else if (!strcmp(argv[1], "store"))
+ store_credential();
+ else if (!strcmp(argv[1], "erase"))
+ erase_credential();
+ /* otherwise, ignore unknown action */
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 00:25:22 +0000