1 files changed, 0 insertions, 512 deletions
diff --git a/third_party/git/credential.c b/third_party/git/credential.c
deleted file mode 100644
index e5202fbef261..000000000000
--- a/third_party/git/credential.c
+++ /dev/null
@@ -1,512 +0,0 @@
-#include "cache.h"
-#include "config.h"
-#include "credential.h"
-#include "string-list.h"
-#include "run-command.h"
-#include "url.h"
-#include "prompt.h"
-#include "sigchain.h"
-#include "urlmatch.h"
-
-void credential_init(struct credential *c)
-{
-	memset(c, 0, sizeof(*c));
-	c->helpers.strdup_strings = 1;
-}
-
-void credential_clear(struct credential *c)
-{
-	free(c->protocol);
-	free(c->host);
-	free(c->path);
-	free(c->username);
-	free(c->password);
-	string_list_clear(&c->helpers, 0);
-
-	credential_init(c);
-}
-
-int credential_match(const struct credential *want,
-		     const struct credential *have)
-{
-#define CHECK(x) (!want->x || (have->x && !strcmp(want->x, have->x)))
-	return CHECK(protocol) &&
-	       CHECK(host) &&
-	       CHECK(path) &&
-	       CHECK(username);
-#undef CHECK
-}
-
-
-static int credential_from_potentially_partial_url(struct credential *c,
-						   const char *url);
-
-static int credential_config_callback(const char *var, const char *value,
-				      void *data)
-{
-	struct credential *c = data;
-	const char *key;
-
-	if (!skip_prefix(var, "credential.", &key))
-		return 0;
-
-	if (!value)
-		return config_error_nonbool(var);
-
-	if (!strcmp(key, "helper")) {
-		if (*value)
-			string_list_append(&c->helpers, value);
-		else
-			string_list_clear(&c->helpers, 0);
-	} else if (!strcmp(key, "username")) {
-		if (!c->username_from_proto) {
-			free(c->username);
-			c->username = xstrdup(value);
-		}
-	}
-	else if (!strcmp(key, "usehttppath"))
-		c->use_http_path = git_config_bool(var, value);
-
-	return 0;
-}
-
-static int proto_is_http(const char *s)
-{
-	if (!s)
-		return 0;
-	return !strcmp(s, "https") || !strcmp(s, "http");
-}
-
-static void credential_describe(struct credential *c, struct strbuf *out);
-static void credential_format(struct credential *c, struct strbuf *out);
-
-static int select_all(const struct urlmatch_item *a,
-		      const struct urlmatch_item *b)
-{
-	return 0;
-}
-
-static int match_partial_url(const char *url, void *cb)
-{
-	struct credential *c = cb;
-	struct credential want = CREDENTIAL_INIT;
-	int matches = 0;
-
-	if (credential_from_potentially_partial_url(&want, url) < 0)
-		warning(_("skipping credential lookup for key: credential.%s"),
-			url);
-	else
-		matches = credential_match(&want, c);
-	credential_clear(&want);
-
-	return matches;
-}
-
-static void credential_apply_config(struct credential *c)
-{
-	char *normalized_url;
-	struct urlmatch_config config = { STRING_LIST_INIT_DUP };
-	struct strbuf url = STRBUF_INIT;
-
-	if (!c->host)
-		die(_("refusing to work with credential missing host field"));
-	if (!c->protocol)
-		die(_("refusing to work with credential missing protocol field"));
-
-	if (c->configured)
-		return;
-
-	config.section = "credential";
-	config.key = NULL;
-	config.collect_fn = credential_config_callback;
-	config.cascade_fn = NULL;
-	config.select_fn = select_all;
-	config.fallback_match_fn = match_partial_url;
-	config.cb = c;
-
-	credential_format(c, &url);
-	normalized_url = url_normalize(url.buf, &config.url);
-
-	git_config(urlmatch_config_entry, &config);
-	free(normalized_url);
-	strbuf_release(&url);
-
-	c->configured = 1;
-
-	if (!c->use_http_path && proto_is_http(c->protocol)) {
-		FREE_AND_NULL(c->path);
-	}
-}
-
-static void credential_describe(struct credential *c, struct strbuf *out)
-{
-	if (!c->protocol)
-		return;
-	strbuf_addf(out, "%s://", c->protocol);
-	if (c->username && *c->username)
-		strbuf_addf(out, "%s@", c->username);
-	if (c->host)
-		strbuf_addstr(out, c->host);
-	if (c->path)
-		strbuf_addf(out, "/%s", c->path);
-}
-
-static void credential_format(struct credential *c, struct strbuf *out)
-{
-	if (!c->protocol)
-		return;
-	strbuf_addf(out, "%s://", c->protocol);
-	if (c->username && *c->username) {
-		strbuf_add_percentencode(out, c->username, STRBUF_ENCODE_SLASH);
-		strbuf_addch(out, '@');
-	}
-	if (c->host)
-		strbuf_addstr(out, c->host);
-	if (c->path) {
-		strbuf_addch(out, '/');
-		strbuf_add_percentencode(out, c->path, 0);
-	}
-}
-
-static char *credential_ask_one(const char *what, struct credential *c,
-				int flags)
-{
-	struct strbuf desc = STRBUF_INIT;
-	struct strbuf prompt = STRBUF_INIT;
-	char *r;
-
-	credential_describe(c, &desc);
-	if (desc.len)
-		strbuf_addf(&prompt, "%s for '%s': ", what, desc.buf);
-	else
-		strbuf_addf(&prompt, "%s: ", what);
-
-	r = git_prompt(prompt.buf, flags);
-
-	strbuf_release(&desc);
-	strbuf_release(&prompt);
-	return xstrdup(r);
-}
-
-static void credential_getpass(struct credential *c)
-{
-	if (!c->username)
-		c->username = credential_ask_one("Username", c,
-						 PROMPT_ASKPASS|PROMPT_ECHO);
-	if (!c->password)
-		c->password = credential_ask_one("Password", c,
-						 PROMPT_ASKPASS);
-}
-
-int credential_read(struct credential *c, FILE *fp)
-{
-	struct strbuf line = STRBUF_INIT;
-
-	while (strbuf_getline(&line, fp) != EOF) {
-		char *key = line.buf;
-		char *value = strchr(key, '=');
-
-		if (!line.len)
-			break;
-
-		if (!value) {
-			warning("invalid credential line: %s", key);
-			strbuf_release(&line);
-			return -1;
-		}
-		*value++ = '\0';
-
-		if (!strcmp(key, "username")) {
-			free(c->username);
-			c->username = xstrdup(value);
-			c->username_from_proto = 1;
-		} else if (!strcmp(key, "password")) {
-			free(c->password);
-			c->password = xstrdup(value);
-		} else if (!strcmp(key, "protocol")) {
-			free(c->protocol);
-			c->protocol = xstrdup(value);
-		} else if (!strcmp(key, "host")) {
-			free(c->host);
-			c->host = xstrdup(value);
-		} else if (!strcmp(key, "path")) {
-			free(c->path);
-			c->path = xstrdup(value);
-		} else if (!strcmp(key, "url")) {
-			credential_from_url(c, value);
-		} else if (!strcmp(key, "quit")) {
-			c->quit = !!git_config_bool("quit", value);
-		}
-		/*
-		 * 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.
-		 */
-	}
-
-	strbuf_release(&line);
-	return 0;
-}
-
-static void credential_write_item(FILE *fp, const char *key, const char *value,
-				  int required)
-{
-	if (!value && required)
-		BUG("credential value for %s is missing", key);
-	if (!value)
-		return;
-	if (strchr(value, '\n'))
-		die("credential value for %s contains newline", key);
-	fprintf(fp, "%s=%s\n", key, value);
-}
-
-void credential_write(const struct credential *c, FILE *fp)
-{
-	credential_write_item(fp, "protocol", c->protocol, 1);
-	credential_write_item(fp, "host", c->host, 1);
-	credential_write_item(fp, "path", c->path, 0);
-	credential_write_item(fp, "username", c->username, 0);
-	credential_write_item(fp, "password", c->password, 0);
-}
-
-static int run_credential_helper(struct credential *c,
-				 const char *cmd,
-				 int want_output)
-{
-	struct child_process helper = CHILD_PROCESS_INIT;
-	FILE *fp;
-
-	strvec_push(&helper.args, cmd);
-	helper.use_shell = 1;
-	helper.in = -1;
-	if (want_output)
-		helper.out = -1;
-	else
-		helper.no_stdout = 1;
-
-	if (start_command(&helper) < 0)
-		return -1;
-
-	fp = xfdopen(helper.in, "w");
-	sigchain_push(SIGPIPE, SIG_IGN);
-	credential_write(c, fp);
-	fclose(fp);
-	sigchain_pop(SIGPIPE);
-
-	if (want_output) {
-		int r;
-		fp = xfdopen(helper.out, "r");
-		r = credential_read(c, fp);
-		fclose(fp);
-		if (r < 0) {
-			finish_command(&helper);
-			return -1;
-		}
-	}
-
-	if (finish_command(&helper))
-		return -1;
-	return 0;
-}
-
-static int credential_do(struct credential *c, const char *helper,
-			 const char *operation)
-{
-	struct strbuf cmd = STRBUF_INIT;
-	int r;
-
-	if (helper[0] == '!')
-		strbuf_addstr(&cmd, helper + 1);
-	else if (is_absolute_path(helper))
-		strbuf_addstr(&cmd, helper);
-	else
-		strbuf_addf(&cmd, "git credential-%s", helper);
-
-	strbuf_addf(&cmd, " %s", operation);
-	r = run_credential_helper(c, cmd.buf, !strcmp(operation, "get"));
-
-	strbuf_release(&cmd);
-	return r;
-}
-
-void credential_fill(struct credential *c)
-{
-	int i;
-
-	if (c->username && c->password)
-		return;
-
-	credential_apply_config(c);
-
-	for (i = 0; i < c->helpers.nr; i++) {
-		credential_do(c, c->helpers.items[i].string, "get");
-		if (c->username && c->password)
-			return;
-		if (c->quit)
-			die("credential helper '%s' told us to quit",
-			    c->helpers.items[i].string);
-	}
-
-	credential_getpass(c);
-	if (!c->username && !c->password)
-		die("unable to get password from user");
-}
-
-void credential_approve(struct credential *c)
-{
-	int i;
-
-	if (c->approved)
-		return;
-	if (!c->username || !c->password)
-		return;
-
-	credential_apply_config(c);
-
-	for (i = 0; i < c->helpers.nr; i++)
-		credential_do(c, c->helpers.items[i].string, "store");
-	c->approved = 1;
-}
-
-void credential_reject(struct credential *c)
-{
-	int i;
-
-	credential_apply_config(c);
-
-	for (i = 0; i < c->helpers.nr; i++)
-		credential_do(c, c->helpers.items[i].string, "erase");
-
-	FREE_AND_NULL(c->username);
-	FREE_AND_NULL(c->password);
-	c->approved = 0;
-}
-
-static int check_url_component(const char *url, int quiet,
-			       const char *name, const char *value)
-{
-	if (!value)
-		return 0;
-	if (!strchr(value, '\n'))
-		return 0;
-
-	if (!quiet)
-		warning(_("url contains a newline in its %s component: %s"),
-			name, url);
-	return -1;
-}
-
-/*
- * Potentially-partial URLs can, but do not have to, contain
- *
- * - a protocol (or scheme) of the form "<protocol>://"
- *
- * - a host name (the part after the protocol and before the first slash after
- *   that, if any)
- *
- * - a user name and potentially a password (as "<user>[:<password>]@" part of
- *   the host name)
- *
- * - a path (the part after the host name, if any, starting with the slash)
- *
- * Missing parts will be left unset in `struct credential`. Thus, `https://`
- * will have only the `protocol` set, `example.com` only the host name, and
- * `/git` only the path.
- *
- * Note that an empty host name in an otherwise fully-qualified URL (e.g.
- * `cert:///path/to/cert.pem`) will be treated as unset if we expect the URL to
- * be potentially partial, and only then (otherwise, the empty string is used).
- *
- * The credential_from_url() function does not allow partial URLs.
- */
-static int credential_from_url_1(struct credential *c, const char *url,
-				 int allow_partial_url, int quiet)
-{
-	const char *at, *colon, *cp, *slash, *host, *proto_end;
-
-	credential_clear(c);
-
-	/*
-	 * Match one of:
-	 *   (1) proto://<host>/...
-	 *   (2) proto://<user>@<host>/...
-	 *   (3) proto://<user>:<pass>@<host>/...
-	 */
-	proto_end = strstr(url, "://");
-	if (!allow_partial_url && (!proto_end || proto_end == url)) {
-		if (!quiet)
-			warning(_("url has no scheme: %s"), url);
-		return -1;
-	}
-	cp = proto_end ? proto_end + 3 : url;
-	at = strchr(cp, '@');
-	colon = strchr(cp, ':');
-
-	/*
-	 * A query or fragment marker before the slash ends the host portion.
-	 * We'll just continue to call this "slash" for simplicity. Notably our
-	 * "trim leading slashes" part won't skip over this part of the path,
-	 * but that's what we'd want.
-	 */
-	slash = cp + strcspn(cp, "/?#");
-
-	if (!at || slash <= at) {
-		/* Case (1) */
-		host = cp;
-	}
-	else if (!colon || at <= colon) {
-		/* Case (2) */
-		c->username = url_decode_mem(cp, at - cp);
-		if (c->username && *c->username)
-			c->username_from_proto = 1;
-		host = at + 1;
-	} else {
-		/* Case (3) */
-		c->username = url_decode_mem(cp, colon - cp);
-		if (c->username && *c->username)
-			c->username_from_proto = 1;
-		c->password = url_decode_mem(colon + 1, at - (colon + 1));
-		host = at + 1;
-	}
-
-	if (proto_end && proto_end - url > 0)
-		c->protocol = xmemdupz(url, proto_end - url);
-	if (!allow_partial_url || slash - host > 0)
-		c->host = url_decode_mem(host, slash - host);
-	/* Trim leading and trailing slashes from path */
-	while (*slash == '/')
-		slash++;
-	if (*slash) {
-		char *p;
-		c->path = url_decode(slash);
-		p = c->path + strlen(c->path) - 1;
-		while (p > c->path && *p == '/')
-			*p-- = '\0';
-	}
-
-	if (check_url_component(url, quiet, "username", c->username) < 0 ||
-	    check_url_component(url, quiet, "password", c->password) < 0 ||
-	    check_url_component(url, quiet, "protocol", c->protocol) < 0 ||
-	    check_url_component(url, quiet, "host", c->host) < 0 ||
-	    check_url_component(url, quiet, "path", c->path) < 0)
-		return -1;
-
-	return 0;
-}
-
-static int credential_from_potentially_partial_url(struct credential *c,
-						   const char *url)
-{
-	return credential_from_url_1(c, url, 1, 0);
-}
-
-int credential_from_url_gently(struct credential *c, const char *url, int quiet)
-{
-	return credential_from_url_1(c, url, 0, quiet);
-}
-
-void credential_from_url(struct credential *c, const char *url)
-{
-	if (credential_from_url_gently(c, url, 0) < 0)
-		die(_("credential url cannot be parsed: %s"), url);
-}