X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fafb-hreq.c;h=9984cbcbe9d63fff1f803594f05394c19e2bc403;hb=fcef933b69ccc363ad10d9f7308f02c5dc474ff6;hp=19efd4b2b3cea7054dc3a6e21bddeedeff7f2754;hpb=3a10185ae380956bd356c73f34138f97255bf7e6;p=src%2Fapp-framework-binder.git

diff --git a/src/afb-hreq.c b/src/afb-hreq.c
index 19efd4b2..9984cbcb 100644
--- a/src/afb-hreq.c
+++ b/src/afb-hreq.c
@@ -15,18 +15,98 @@
  * limitations under the License.
  */
 
+#define USE_MAGIC_MIME_TYPE
 #define _GNU_SOURCE
-#include <microhttpd.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
 #include <assert.h>
-#include <poll.h>
+#include <errno.h>
+#include <fcntl.h>
 #include <sys/stat.h>
 
-#include "../include/local-def.h"
+#include <microhttpd.h>
+#include <json.h>
+
+#if defined(USE_MAGIC_MIME_TYPE)
+#include <magic.h>
+#endif
+
 #include "afb-method.h"
+#include "afb-req-itf.h"
 #include "afb-hreq.h"
+#include "session.h"
+#include "verbose.h"
 
+#define SIZE_RESPONSE_BUFFER   8000
 
-static char empty_string[1] = "";
+static char empty_string[] = "";
+
+static const char uuid_header[] = "x-afb-uuid";
+static const char uuid_arg[] = "uuid";
+static const char uuid_cookie[] = "uuid";
+
+static const char token_header[] = "x-afb-token";
+static const char token_arg[] = "token";
+static const char token_cookie[] = "token";
+
+static char *cookie_name = NULL;
+static char *cookie_setter = NULL;
+
+struct hreq_data {
+	struct hreq_data *next;
+	char *key;
+	size_t length;
+	char *value;
+	char *path;
+};
+
+static struct json_object *req_json(struct afb_hreq *hreq);
+static struct afb_arg req_get(struct afb_hreq *hreq, const char *name);
+static void req_fail(struct afb_hreq *hreq, const char *status, const char *info);
+static void req_success(struct afb_hreq *hreq, json_object *obj, const char *info);
+static const char *req_raw(struct afb_hreq *hreq, size_t *size);
+static void req_send(struct afb_hreq *hreq, char *buffer, size_t size);
+static int req_session_create(struct afb_hreq *hreq);
+static int req_session_check(struct afb_hreq *hreq, int refresh);
+static void req_session_close(struct afb_hreq *hreq);
+
+static const struct afb_req_itf afb_hreq_itf = {
+	.json = (void*)req_json,
+	.get = (void*)req_get,
+	.success = (void*)req_success,
+	.fail = (void*)req_fail,
+	.raw = (void*)req_raw,
+	.send = (void*)req_send,
+	.session_create = (void*)req_session_create,
+	.session_check = (void*)req_session_check,
+	.session_close = (void*)req_session_close
+};
+
+static struct hreq_data *get_data(struct afb_hreq *hreq, const char *key, int create)
+{
+	struct hreq_data *data = hreq->data;
+	while (data != NULL) {
+		if (!strcasecmp(data->key, key))
+			return data;
+		data = data->next;
+	}
+	if (create) {
+		data = calloc(1, sizeof *data);
+		if (data != NULL) {
+			data->key = strdup(key);
+			if (data->key == NULL) {
+				free(data);
+				data = NULL;
+			} else {
+				data->next = hreq->data;
+				hreq->data = data;
+			}
+		}
+	}
+	return data;
+}
 
 /* a valid subpath is a relative path not looking deeper than root using .. */
 static int validsubpath(const char *subpath)
@@ -65,8 +145,160 @@ static int validsubpath(const char *subpath)
 	return 1;
 }
 
+#if defined(USE_MAGIC_MIME_TYPE)
+
+#if !defined(MAGIC_DB)
+#define MAGIC_DB "/usr/share/misc/magic.mgc"
+#endif
+
+static void afb_hreq_reply_v(struct afb_hreq *hreq, unsigned status, struct MHD_Response *response, va_list args)
+{
+	char *cookie;
+	const char *k, *v;
+	k = va_arg(args, const char *);
+	while (k != NULL) {
+		v = va_arg(args, const char *);
+		MHD_add_response_header(response, k, v);
+		k = va_arg(args, const char *);
+	}
+	if (hreq->context != NULL && asprintf(&cookie, cookie_setter, hreq->context->uuid)) {
+		MHD_add_response_header(response, MHD_HTTP_HEADER_SET_COOKIE, cookie);
+		free(cookie);
+	}
+	MHD_queue_response(hreq->connection, status, response);
+	MHD_destroy_response(response);
+}
+
+void afb_hreq_reply(struct afb_hreq *hreq, unsigned status, struct MHD_Response *response, ...)
+{
+	va_list args;
+	va_start(args, response);
+	afb_hreq_reply_v(hreq, status, response, args);
+	va_end(args);
+}
+
+void afb_hreq_reply_empty(struct afb_hreq *hreq, unsigned status, ...)
+{
+	va_list args;
+	va_start(args, status);
+	afb_hreq_reply_v(hreq, status, MHD_create_response_from_buffer(0, NULL, MHD_RESPMEM_PERSISTENT), args);
+	va_end(args);
+}
+
+void afb_hreq_reply_static(struct afb_hreq *hreq, unsigned status, size_t size, char *buffer, ...)
+{
+	va_list args;
+	va_start(args, buffer);
+	afb_hreq_reply_v(hreq, status, MHD_create_response_from_buffer((unsigned)size, buffer, MHD_RESPMEM_PERSISTENT), args);
+	va_end(args);
+}
+
+void afb_hreq_reply_copy(struct afb_hreq *hreq, unsigned status, size_t size, char *buffer, ...)
+{
+	va_list args;
+	va_start(args, buffer);
+	afb_hreq_reply_v(hreq, status, MHD_create_response_from_buffer((unsigned)size, buffer, MHD_RESPMEM_MUST_COPY), args);
+	va_end(args);
+}
+
+void afb_hreq_reply_free(struct afb_hreq *hreq, unsigned status, size_t size, char *buffer, ...)
+{
+	va_list args;
+	va_start(args, buffer);
+	afb_hreq_reply_v(hreq, status, MHD_create_response_from_buffer((unsigned)size, buffer, MHD_RESPMEM_MUST_FREE), args);
+	va_end(args);
+}
+
+static magic_t lazy_libmagic()
+{
+	static int done = 0;
+	static magic_t result = NULL;
+
+	if (!done) {
+		done = 1;
+		/* MAGIC_MIME tells magic to return a mime of the file,
+			 but you can specify different things */
+		if (verbosity)
+			printf("Loading mimetype default magic database\n");
+
+		result = magic_open(MAGIC_MIME_TYPE);
+		if (result == NULL) {
+			fprintf(stderr,"ERROR: unable to initialize magic library\n");
+		}
+		/* Warning: should not use NULL for DB
+				[libmagic bug wont pass efence check] */
+		else if (magic_load(result, MAGIC_DB) != 0) {
+			fprintf(stderr,"cannot load magic database - %s\n",
+					magic_error(result));
+			magic_close(result);
+			result = NULL;
+		}
+	}
+
+	return result;
+}
+
+static const char *magic_mimetype_fd(int fd)
+{
+	magic_t lib = lazy_libmagic();
+	return lib ? magic_descriptor(lib, fd) : NULL;
+}
+
+#endif
+
+static const char *mimetype_fd_name(int fd, const char *filename)
+{
+	const char *result = NULL;
+
+#if defined(INFER_EXTENSION)
+	const char *extension = strrchr(filename, '.');
+	if (extension) {
+		static const char *const known[][2] = {
+			{ ".js", "text/javascript" },
+			{ ".html", "text/html" },
+			{ NULL, NULL }
+		};
+		int i = 0;
+		while (known[i][0]) {
+			if (!strcasecmp(extension, known[i][0])) {
+				result = known[i][1];
+				break;
+			}
+			i++;
+		}
+	}
+#endif
+#if defined(USE_MAGIC_MIME_TYPE)
+	if (result == NULL)
+		result = magic_mimetype_fd(fd);
+#endif
+	return result;
+}
+
+void afb_hreq_free(struct afb_hreq *hreq)
+{
+	struct hreq_data *data;
+	if (hreq != NULL) {
+		if (hreq->postform != NULL)
+			MHD_destroy_post_processor(hreq->postform);
+		for (data = hreq->data; data; data = hreq->data) {
+			hreq->data = data->next;
+			if (data->path) {
+				unlink(data->path);
+				free(data->path);
+			}
+			free(data->key);
+			free(data->value);
+			free(data);
+		}
+		ctxClientPut(hreq->context);
+		json_object_put(hreq->json);
+		free(hreq);
+	}
+}
+
 /*
- * Removes the 'prefix' of 'length' frome the tail of 'hreq'
+ * Removes the 'prefix' of 'length' from the tail of 'hreq'
  * if and only if the prefix exists and is terminated by a leading
  * slash
  */
@@ -74,7 +306,7 @@ int afb_hreq_unprefix(struct afb_hreq *hreq, const char *prefix, size_t length)
 {
 	/* check the prefix ? */
 	if (length > hreq->lentail || (hreq->tail[length] && hreq->tail[length] != '/')
-	    || memcmp(prefix, hreq->tail, length))
+	    || strncasecmp(prefix, hreq->tail, length))
 		return 0;
 
 	/* removes successives / */
@@ -94,20 +326,7 @@ int afb_hreq_valid_tail(struct afb_hreq *hreq)
 
 void afb_hreq_reply_error(struct afb_hreq *hreq, unsigned int status)
 {
-	char *buffer;
-	int length;
-	struct MHD_Response *response;
-
-	length = asprintf(&buffer, "<html><body>error %u</body></html>", status);
-	if (length > 0)
-		response = MHD_create_response_from_buffer((unsigned)length, buffer, MHD_RESPMEM_MUST_FREE);
-	else {
-		buffer = "<html><body>error</body></html>";
-		response = MHD_create_response_from_buffer(strlen(buffer), buffer, MHD_RESPMEM_PERSISTENT);
-	}
-	if (!MHD_queue_response(hreq->connection, status, response))
-		fprintf(stderr, "Failed to reply error code %u", status);
-	MHD_destroy_response(response);
+	afb_hreq_reply_empty(hreq, status, NULL);
 }
 
 int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *filename)
@@ -119,14 +338,23 @@ int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *f
 	char etag[1 + 2 * sizeof(int)];
 	const char *inm;
 	struct MHD_Response *response;
+	const char *mimetype;
 
 	/* Opens the file or directory */
-	fd = openat(dirfd, filename, O_RDONLY);
-	if (fd < 0) {
-		if (errno == ENOENT)
-			return 0;
-		afb_hreq_reply_error(hreq, MHD_HTTP_FORBIDDEN);
-		return 1;
+	if (filename[0]) {
+		fd = openat(dirfd, filename, O_RDONLY);
+		if (fd < 0) {
+			if (errno == ENOENT)
+				return 0;
+			afb_hreq_reply_error(hreq, MHD_HTTP_FORBIDDEN);
+			return 1;
+		}
+	} else {
+		fd = dup(dirfd);
+		if (fd < 0) {
+			afb_hreq_reply_error(hreq, MHD_HTTP_INTERNAL_SERVER_ERROR);
+			return 1;
+		}
 	}
 
 	/* Retrieves file's status */
@@ -138,15 +366,24 @@ int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *f
 
 	/* serve directory */
 	if (S_ISDIR(st.st_mode)) {
-		if (hreq->url[hreq->lenurl - 1] != '/') {
-			/* the redirect is needed for reliability of relative path */
-			char *tourl = alloca(hreq->lenurl + 2);
-			memcpy(tourl, hreq->url, hreq->lenurl);
-			tourl[hreq->lenurl] = '/';
-			tourl[hreq->lenurl + 1] = 0;
-			rc = afb_hreq_redirect_to(hreq, tourl);
-		} else {
-			rc = afb_hreq_reply_file_if_exist(hreq, fd, "index.html");
+		static const char *indexes[] = { "index.html", NULL };
+		int i = 0;
+		rc = 0;
+		while (indexes[i] != NULL) {
+			if (faccessat(fd, indexes[i], R_OK, 0) == 0) {
+				if (hreq->url[hreq->lenurl - 1] != '/') {
+					/* the redirect is needed for reliability of relative path */
+					char *tourl = alloca(hreq->lenurl + 2);
+					memcpy(tourl, hreq->url, hreq->lenurl);
+					tourl[hreq->lenurl] = '/';
+					tourl[hreq->lenurl + 1] = 0;
+					rc = afb_hreq_redirect_to(hreq, tourl);
+				} else {
+					rc = afb_hreq_reply_file_if_exist(hreq, fd, indexes[i]);
+				}
+				break;
+			}
+			i++;
 		}
 		close(fd);
 		return rc;
@@ -174,7 +411,7 @@ int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *f
 	if (inm && 0 == strcmp(inm, etag)) {
 		/* etag ok, return NOT MODIFIED */
 		close(fd);
-		if (verbose)
+		if (verbosity)
 			fprintf(stderr, "Not Modified: [%s]\n", filename);
 		response = MHD_create_response_from_buffer(0, empty_string, MHD_RESPMEM_PERSISTENT);
 		status = MHD_HTTP_NOT_MODIFIED;
@@ -190,21 +427,17 @@ int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *f
 		response = MHD_create_response_from_fd((size_t) st.st_size, fd);
 		status = MHD_HTTP_OK;
 
-#if defined(USE_MAGIC_MIME_TYPE)
 		/* set the type */
-		if (hreq->session->magic) {
-			const char *mimetype = magic_descriptor(hreq->session->magic, fd);
-			if (mimetype != NULL)
-				MHD_add_response_header(response, MHD_HTTP_HEADER_CONTENT_TYPE, mimetype);
-		}
-#endif
+		mimetype = mimetype_fd_name(fd, filename);
+		if (mimetype != NULL)
+			MHD_add_response_header(response, MHD_HTTP_HEADER_CONTENT_TYPE, mimetype);
 	}
 
 	/* fills the value and send */
-	MHD_add_response_header(response, MHD_HTTP_HEADER_CACHE_CONTROL, hreq->session->cacheTimeout);
-	MHD_add_response_header(response, MHD_HTTP_HEADER_ETAG, etag);
-	MHD_queue_response(hreq->connection, status, response);
-	MHD_destroy_response(response);
+	afb_hreq_reply(hreq, status, response,
+			MHD_HTTP_HEADER_CACHE_CONTROL, hreq->cacheTimeout,
+			MHD_HTTP_HEADER_ETAG, etag,
+			NULL);
 	return 1;
 }
 
@@ -218,14 +451,280 @@ int afb_hreq_reply_file(struct afb_hreq *hreq, int dirfd, const char *filename)
 
 int afb_hreq_redirect_to(struct afb_hreq *hreq, const char *url)
 {
+	afb_hreq_reply_static(hreq, MHD_HTTP_MOVED_PERMANENTLY, 0, NULL,
+			MHD_HTTP_HEADER_LOCATION, url, NULL);
+	if (verbosity)
+		fprintf(stderr, "redirect from [%s] to [%s]\n", hreq->url, url);
+	return 1;
+}
+
+const char *afb_hreq_get_cookie(struct afb_hreq *hreq, const char *name)
+{
+	return MHD_lookup_connection_value(hreq->connection, MHD_COOKIE_KIND, name);
+}
+
+const char *afb_hreq_get_argument(struct afb_hreq *hreq, const char *name)
+{
+	struct hreq_data *data = get_data(hreq, name, 0);
+	return data ? data->value : MHD_lookup_connection_value(hreq->connection, MHD_GET_ARGUMENT_KIND, name);
+}
+
+const char *afb_hreq_get_header(struct afb_hreq *hreq, const char *name)
+{
+	return MHD_lookup_connection_value(hreq->connection, MHD_HEADER_KIND, name);
+}
+
+int afb_hreq_post_add(struct afb_hreq *hreq, const char *key, const char *data, size_t size)
+{
+	void *p;
+	struct hreq_data *hdat = get_data(hreq, key, 1);
+	if (hdat->path != NULL) {
+		return 0;
+	}
+	p = realloc(hdat->value, hdat->length + size + 1);
+	if (p == NULL) {
+		return 0;
+	}
+	hdat->value = p;
+	memcpy(&hdat->value[hdat->length], data, size);
+	hdat->length += size;
+	hdat->value[hdat->length] = 0;
+	return 1;
+}
+
+static int opentempfile(char **path)
+{
+	int fd;
+	char *fname;
+
+	fname = strdup("XXXXXX"); /* TODO improve the path */
+	if (fname == NULL)
+		return -1;
+
+	fd = mkostemp(fname, O_CLOEXEC|O_WRONLY);
+	if (fd < 0)
+		free(fname);
+	else
+		*path = fname;
+	return fd;
+}
+
+int afb_hreq_post_add_file(struct afb_hreq *hreq, const char *key, const char *file, const char *data, size_t size)
+{
+	int fd;
+	ssize_t sz;
+	struct hreq_data *hdat = get_data(hreq, key, 1);
+
+	if (hdat->value == NULL) {
+		hdat->value = strdup(file);
+		if (hdat->value == NULL)
+			return 0;
+		fd = opentempfile(&hdat->path);
+	} else if (strcmp(hdat->value, file) || hdat->path == NULL) {
+		return 0;
+	} else {
+		fd = open(hdat->path, O_WRONLY|O_APPEND);
+	}
+	if (fd < 0)
+		return 0;
+	while (size) {
+		sz = write(fd, data, size);
+		if (sz >= 0) {
+			hdat->length += (size_t)sz;
+			size -= (size_t)sz;
+			data += sz;
+		} else if (errno != EINTR)
+			break;
+	}
+	close(fd);
+	return !size;
+}
+
+struct afb_req afb_hreq_to_req(struct afb_hreq *hreq)
+{
+	return (struct afb_req){ .itf = &afb_hreq_itf, .data = hreq };
+}
+
+static struct afb_arg req_get(struct afb_hreq *hreq, const char *name)
+{
+	struct hreq_data *hdat = get_data(hreq, name, 0);
+	if (hdat)
+		return (struct afb_arg){
+			.name = hdat->key,
+			.value = hdat->value,
+			.path = hdat->path
+		};
+		
+	return (struct afb_arg){
+		.name = name,
+		.value = MHD_lookup_connection_value(hreq->connection, MHD_GET_ARGUMENT_KIND, name),
+		.path = NULL
+	};
+}
+
+static int _iterargs_(struct json_object *obj, enum MHD_ValueKind kind, const char *key, const char *value)
+{
+	json_object_object_add(obj, key, value ? json_object_new_string(value) : NULL);
+	return 1;
+}
+
+static struct json_object *req_json(struct afb_hreq *hreq)
+{
+	struct hreq_data *hdat;
+	struct json_object *obj, *val;
+
+	obj = hreq->json;
+	if (obj == NULL) {
+		hreq->json = obj = json_object_new_object();
+		if (obj == NULL) {
+		} else {
+			MHD_get_connection_values (hreq->connection, MHD_GET_ARGUMENT_KIND, (void*)_iterargs_, obj);
+			for (hdat = hreq->data ; hdat ; hdat = hdat->next) {
+				if (hdat->path == NULL)
+					val = hdat->value ? json_object_new_string(hdat->value) : NULL;
+				else {
+					val = json_object_new_object();
+					if (val == NULL) {
+					} else {
+						json_object_object_add(val, "file", json_object_new_string(hdat->value));
+						json_object_object_add(val, "path", json_object_new_string(hdat->path));
+					}
+				}
+				json_object_object_add(obj, hdat->key, val);
+			}
+		}
+	}
+	return obj;
+}
+
+static const char *req_raw(struct afb_hreq *hreq, size_t *size)
+{
+	const char *result = json_object_get_string(req_json(hreq));
+	*size = result ? strlen(result) : 0;
+	return result;
+}
+
+static void req_send(struct afb_hreq *hreq, char *buffer, size_t size)
+{
+	afb_hreq_reply_free(hreq, MHD_HTTP_OK, size, buffer, NULL);
+}
+
+static ssize_t send_json_cb(json_object *obj, uint64_t pos, char *buf, size_t max)
+{
+	ssize_t len = stpncpy(buf, json_object_to_json_string(obj)+pos, max) - buf;
+	return len ? : -1;
+}
+
+static void req_reply(struct afb_hreq *hreq, unsigned retcode, const char *status, const char *info, json_object *resp)
+{
+	json_object *root, *request;
 	struct MHD_Response *response;
 
-	response = MHD_create_response_from_buffer(0, empty_string, MHD_RESPMEM_PERSISTENT);
-	MHD_add_response_header(response, MHD_HTTP_HEADER_LOCATION, url);
-	MHD_queue_response(hreq->connection, MHD_HTTP_MOVED_PERMANENTLY, response);
-	MHD_destroy_response(response);
-	if (verbose)
-		fprintf(stderr, "redirect from [%s] to [%s]\n", hreq->url, url);
+	root = json_object_new_object();
+	json_object_object_add(root, "jtype", json_object_new_string("afb-reply"));
+	request = json_object_new_object();
+	json_object_object_add(root, "request", request);
+	json_object_object_add(request, "status", json_object_new_string(status));
+	if (info)
+		json_object_object_add(request, "info", json_object_new_string(info));
+	if (resp)
+		json_object_object_add(root, "response", resp);
+	if (hreq->context) {
+		json_object_object_add(request, uuid_arg, json_object_new_string(hreq->context->uuid));
+		json_object_object_add(request, token_arg, json_object_new_string(hreq->context->token));
+	}
+
+	response = MHD_create_response_from_callback(MHD_SIZE_UNKNOWN, SIZE_RESPONSE_BUFFER, (void*)send_json_cb, root, (void*)json_object_put);
+	afb_hreq_reply(hreq, retcode, response, NULL);
+}
+
+static void req_fail(struct afb_hreq *hreq, const char *status, const char *info)
+{
+	req_reply(hreq, MHD_HTTP_OK, status, info, NULL);
+}
+
+static void req_success(struct afb_hreq *hreq, json_object *obj, const char *info)
+{
+	req_reply(hreq, MHD_HTTP_OK, "success", info, obj);
+}
+
+struct AFB_clientCtx *afb_hreq_context(struct afb_hreq *hreq)
+{
+	const char *uuid;
+
+	if (hreq->context == NULL) {
+		uuid = afb_hreq_get_header(hreq, uuid_header);
+		if (uuid == NULL)
+			uuid = afb_hreq_get_argument(hreq, uuid_arg);
+		if (uuid == NULL)
+			uuid = afb_hreq_get_cookie(hreq, cookie_name);
+		hreq->context = ctxClientGetForUuid(uuid);
+	}
+	return hreq->context;
+}
+
+static int req_session_create(struct afb_hreq *hreq)
+{
+	struct AFB_clientCtx *context = afb_hreq_context(hreq);
+	if (context == NULL)
+		return 0;
+	if (context->created)
+		return 0;
+	return req_session_check(hreq, 1);
+}
+
+static int req_session_check(struct afb_hreq *hreq, int refresh)
+{
+	const char *token;
+
+	struct AFB_clientCtx *context = afb_hreq_context(hreq);
+
+	if (context == NULL)
+		return 0;
+
+	token = afb_hreq_get_header(hreq, token_header);
+	if (token == NULL)
+		token = afb_hreq_get_argument(hreq, token_arg);
+	if (token == NULL)
+		token = afb_hreq_get_cookie(hreq, token_cookie);
+	if (token == NULL)
+		return 0;
+
+	if (!ctxTokenCheck (context, token))
+		return 0;
+
+	if (refresh) {
+		ctxTokenNew (context);
+	}
+
 	return 1;
 }
 
+static void req_session_close(struct afb_hreq *hreq)
+{
+	struct AFB_clientCtx *context = afb_hreq_context(hreq);
+	if (context != NULL)
+		ctxClientClose(context);
+}
+
+int afb_hreq_init_cookie(int port, const char *path, int maxage)
+{
+	int rc;
+
+	free(cookie_name);
+	free(cookie_setter);
+	cookie_name = NULL;
+	cookie_setter = NULL;
+
+	path = path ? : "/";
+	rc = asprintf(&cookie_name, "x-afb-uuid-%d", port);
+	if (rc < 0)
+		return 0;
+	rc = asprintf(&cookie_setter, "%s=%%s; Path=%s; Max-Age=%d; HttpOnly",
+			cookie_name, path, maxage);
+	if (rc < 0)
+		return 0;
+	return 1;
+}
+
+