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authorAlessio Vanni <vannilla@firemail.cc>2021-05-02 19:02:26 +0200
committerAlessio Vanni <vannilla@firemail.cc>2021-05-07 22:38:02 +0200
commit2bca4006c49c7b3875034f6fd6530cbcfe20bcb1 (patch)
tree391f0b63a81385b8ad7fabd7cb120c4de9a86ef6
parenta5082240f035f1851715771b0265e25088bb687c (diff)
[FCFSD] Provide a better user experience
The motivations behind these changes are as following. To begin with, at the most superficial level, the form is given a better appearance, instead of some plain XHTML. Additionally, the served pages can be substituted with something else by using an entry in the configuration value, altough with some limitations. The page listing all the registered zones has been removed in favour of a search function. A configuration entry could've been used to let service operators choose between showing the full listing or not, but at the same time, being presented with a (possibly) giant list of names is not that great from a usability point of view. Having a search function is, at the very least, faster than having to wait for the full list to be displayed before being able to use the user agent's page search feature. Other than the above, people registering names with the service might not want to be known by everyone. Even though checking if a certain name or key was registered already can be known simply by querying the service, it's not straightforward to associate a name with a specific key (or viceversa). Last but not least, the service was restructured to be more "route-oriented" instead of the traditional (X)HTML document format. The main purpose of this change is to decouple usage of the service from the tools used to access it. With a traditional document, users are pretty much forced to use a web browsers as data submission is carried through the standard HTML form handling. Now, it is possible to access the service using any tool capable of speaking HTTP, regardless of wether it's a web browser, cURL or even a custom tool specific for this service. Another advantage of this approach is that it allows adding "layers" to the service, for example an authentication check before letting users register a name. As long as the layer immediately on top of the service is able to send some JSON using HTTP, there is no need to have users access the service itself: just put a "proxy" inbetween and run the service locally, while the proxy handles other administrative tasks before a name can be registered. By using layers, the service can keep being small feature-wise (i.e. provide only searching and registering), while everything else is provided by other applications, including access through protocols other than HTTP.
-rw-r--r--contrib/Makefile.am3
-rw-r--r--contrib/fcfsd/fcfsd-forbidden.html11
-rw-r--r--contrib/fcfsd/fcfsd-index.html345
-rw-r--r--contrib/fcfsd/fcfsd-notfound.html11
-rw-r--r--src/namestore/Makefile.am3
-rw-r--r--src/namestore/gnunet-namestore-fcfsd.c1594
6 files changed, 1105 insertions, 862 deletions
diff --git a/contrib/Makefile.am b/contrib/Makefile.am
index 331620586..f42fb684d 100644
--- a/contrib/Makefile.am
+++ b/contrib/Makefile.am
@@ -11,6 +11,9 @@ dist_pkgdata_DATA = \
gns/def.tex \
gns/gns-form-fields.xml \
gns/gns-form.xslt \
+ fcfsd/fcfsd-index.html \
+ fcfsd/fcfsd-notfound.html \
+ fcfsd/fcfsd-forbidden.html \
branding/logo/gnunet-logo.pdf \
branding/logo/gnunet-logo.png \
branding/logo/gnunet-logo-color.png \
diff --git a/contrib/fcfsd/fcfsd-forbidden.html b/contrib/fcfsd/fcfsd-forbidden.html
new file mode 100644
index 000000000..57ebb4c61
--- /dev/null
+++ b/contrib/fcfsd/fcfsd-forbidden.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8"/>
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+ <title>Forbidden - GNUnet FCFS Authority Name Registration Service</title>
+ </head>
+ <body>
+ <h1>You can not access this resource.</h1>
+ </body>
+</html>
diff --git a/contrib/fcfsd/fcfsd-index.html b/contrib/fcfsd/fcfsd-index.html
new file mode 100644
index 000000000..3fa71d7c8
--- /dev/null
+++ b/contrib/fcfsd/fcfsd-index.html
@@ -0,0 +1,345 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8"/>
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+ <title>GNUnet FCFS Authority Name Registration Service</title>
+ <style>
+ html {
+ box-sizing: border-box;
+ font-family: sans-serif;
+ }
+
+ *, *:before, *:after {
+ box-sizing: inherit;
+ }
+
+ header {
+ width: 800px;
+ margin: 0 auto;
+ }
+
+ main {
+ width: 800px;
+ margin: 0 auto;
+ }
+
+ section h4 {
+ text-align: center;
+ width: 100%;
+ }
+
+ section input {
+ width: 100%;
+ padding: 8px 17px;
+ font-size: 1rem;
+ border: 1px solid #aaa;
+ border-radius: 7px;
+ background-color: white;
+ margin-bottom: 7px;
+ }
+
+ section input:focus {
+ box-shadow: 0px 0px 5px 3px lightblue;
+ }
+
+ section button {
+ font-size: 1rem;
+ font-weight: bold;
+ background-color: #8b008b;
+ color: white;
+ border: none;
+ padding: 7px;
+ }
+
+ section button:hover {
+ background-color: #bf00bf;
+ }
+
+ section button:disabled {
+ background-color: gray;
+ }
+
+ section h3 {
+ text-align: center;
+ width: 100%;
+ }
+
+ section small {
+ display: block;
+ margin-bottom: 5px;
+ }
+
+ .error-message {
+ color: red;
+ }
+
+ .success-message {
+ color: green;
+ }
+
+ @media screen and (max-width: 991px) {
+ header, main {
+ width: 100%;
+ }
+ }
+
+ footer {
+ margin-top: 30px;
+ text-align: center;
+ }
+
+ nav {
+ border-bottom: 1px solid black;
+ }
+
+ nav button {
+ font-size: 1rem;
+ font-weight: bold;
+ background-color: #ccc;
+ border: 1px solid black;
+ border-bottom: none;
+ border-top-right-radius: 7px;
+ border-top-left-radius: 7px;
+ padding: 7px;
+ }
+
+ nav button:hover {
+ background-color: #f0f0f0;
+ cursor: pointer;
+ }
+
+ nav button.selected {
+ background-color: #f0f0f0;
+ }
+ </style>
+ </head>
+ <body>
+ <header>
+ <h1>Name Registration Service</h1>
+ <p>Here you can register a name for your zone as part of this service's
+ delegated names.</p>
+ <p>The registration is based on a <em>First Come First Served</em>
+ policy, meaning a name is given to the first user requesting it.</p>
+ <p>Use the search bar below to see if your desired name is available and
+ then use the form to submit your registration request.</p>
+ </header>
+ <main>
+ <div class="form-container">
+ <nav>
+ <button id="tab-search">Search</button>
+ <button id="tab-register">Register</button>
+ </nav>
+ <section id="search-form">
+ <h4>Is your name available?</h4>
+ <h3 id="search-result-message"></h3>
+ <input id="search-name"
+ name="search-name"
+ type="text"
+ placeholder="Your name..."
+ autocomplete="name"
+ maxlength="63"
+ minlength="1">
+ <small class="error-message" id="search-name-error"></small>
+ <button>Search</button>
+ </section>
+ <section id="submit-form">
+ <h4>Submit a registration request</h4>
+ <h3 id="submit-result-message"></h3>
+ <input id="register-name"
+ name="register-name"
+ type="text"
+ placeholder="Your name..."
+ autocomplete="off"
+ maxlength="63"
+ minlength="1">
+ <input id="register-value"
+ name="register-value"
+ type="text"
+ placeholder="Your zone key..."
+ autocomplete="off"
+ minlength="1">
+ <small class="error-message" id="submit-error"></small>
+ <button>Submit</button>
+ </section>
+ </div>
+ </main>
+ <footer>
+ <a href="https://gnunet.org">GNUnet homepage</a>
+ </footer>
+ <script>
+ const buttons = document.querySelectorAll('nav button');
+ for (let i=0; i<buttons.length; ++i) {
+ buttons[i].onclick = function (e) {
+ let selected = document.querySelector('nav button.selected');
+ if (selected) {
+ selected.classList.toggle('selected');
+ }
+ e.target.classList.toggle('selected');
+
+ let show = '';
+ let hide = '';
+ if (e.target.id === 'tab-search') {
+ show = 'search-form';
+ hide = 'submit-form';
+ } else {
+ show = 'submit-form';
+ hide = 'search-form'
+ }
+
+ document.getElementById(hide).style.display = 'none';
+ document.getElementById(show).style.display = 'block';
+ };
+ }
+
+ buttons[0].click({target: buttons[0]});
+
+ const searchbutton = document.querySelector('#search-form button');
+ const submitbutton = document.querySelector('#submit-form button');
+
+ document.getElementById('search-name').onkeydown = function (e) {
+ if (e.key !== 'Enter') {
+ return;
+ }
+
+ searchbutton.click();
+ };
+
+ for (let n of ['register-name', 'register-value']) {
+ document.getElementById(n).onkeydown = function (e) {
+ if (e.key !== 'Enter') {
+ return;
+ }
+
+ submitbutton.click();
+ };
+ }
+
+ searchbutton.onclick = function (e) {
+ const searchname = document.getElementById('search-name');
+ const errormsg = document.getElementById('search-name-error');
+ const resultmsg = document.getElementById('search-result-message');
+
+ if (0 === searchname.value.length) {
+ errormsg.innerText = 'The field can not be empty';
+ searchname.setCustomValidity('The field can not be empty');
+ return;
+ }
+
+ if (-1 !== searchname.value.indexOf('.')) {
+ errormsg.innerText = 'The name can not contain dots';
+ searchname.setCustomValidity('The name can not contain dots');
+ return;
+ }
+
+ searchname.setCustomValidity('');
+ errormsg.innerText = '';
+
+ const name = searchname.value.toLowerCase();
+
+ searchbutton.disabled = true;
+ submitbutton.disabled = true;
+
+ fetch(`/search?name=${name}`)
+ .then(function (response) {
+ if (!response.ok) {
+ throw 'error';
+ }
+
+ return response.json()
+ })
+ .then(function (data) {
+ if ("true" === data.free) {
+ resultmsg.innerText = `'${name}' is available!`;
+ resultmsg.classList.add('success-message');
+ resultmsg.classList.remove('error-message');
+ } else {
+ resultmsg.innerText = `'${name}' is not available`;
+ resultmsg.classList.remove('success-message');
+ resultmsg.classList.add('error-message');
+ }
+ searchbutton.disabled = false;
+ submitbutton.disabled = false;
+ })
+ .catch(function (error) {
+ resultmsg.innerText = 'An error occurred while processing your query';
+ resultmsg.classList.remove('success-message');
+ resultmsg.classList.add('error-message');
+ console.error(error);
+ searchbutton.disabled = false;
+ submitbutton.disabled = false;
+ });
+ };
+
+ submitbutton.onclick = function (e) {
+ const registername = document.getElementById('register-name');
+ const registervalue = document.getElementById('register-value');
+ const errormsg = document.getElementById('submit-error');
+ const resultmsg = document.getElementById('submit-result-message');
+
+ let errors = 0;
+ let errs = [];
+
+ if (0 === registername.value.length) {
+ errs.push('The name field can not be empty');
+ registername.setCustomValidity('The name field can not be empty');
+ ++errors;
+ }
+ if (-1 !== registername.value.indexOf('.')) {
+ errs.push('The name can not contain dots');
+ registername.setCustomValidity('The name can not contain dots');
+ ++errors;
+ }
+ if (0 === registervalue.value.length) {
+ errs.push('The value field can not be empty');
+ registervalue.setCustomValidity('The value field can not be empty');
+ ++errors;
+ }
+
+ if (0 < errors) {
+ errormsg.innerHTML = 'The form contains invalid values:';
+ for (let e of errs) {
+ errormsg.innerHTML += '<br/>' + e;
+ }
+ return;
+ }
+
+ searchbutton.disabled = true;
+ submitbutton.disabled = true;
+
+ fetch('/register', {
+ method: 'POST',
+ cache: 'no-cache',
+ headers: {
+ 'Content-Type': 'application/json',
+ },
+ body: JSON.stringify({
+ name: registername.value,
+ key: registervalue.value,
+ }),
+ }).then(function (response) {
+ return response.json();
+ }).then(function (data) {
+ if (data.error === "false") {
+ resultmsg.innerText = `'${registername.value}' was registered successfully!`;
+ resultmsg.classList.add('success-message');
+ resultmsg.classList.remove('error-message');
+ } else {
+ resultmsg.innerText = `'${registername.value}' could not be registered! (${data.message})`;
+ resultmsg.classList.remove('success-message');
+ resultmsg.classList.add('error-message');
+ }
+ searchbutton.disabled = false;
+ submitbutton.disabled = false;
+ }).catch(function (error) {
+ resultmsg.innerText = 'An error occurred while processing your query';
+ resultmsg.classList.remove('success-message');
+ resultmsg.classList.add('error-message');
+ console.error(error);
+ searchbutton.disabled = false;
+ submitbutton.disabled = false;
+ });
+ };
+ </script>
+ </body>
+</html>
diff --git a/contrib/fcfsd/fcfsd-notfound.html b/contrib/fcfsd/fcfsd-notfound.html
new file mode 100644
index 000000000..676bf4a9a
--- /dev/null
+++ b/contrib/fcfsd/fcfsd-notfound.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8"/>
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+ <title>Not Found - GNUnet FCFS Authority Name Registration Service</title>
+ </head>
+ <body>
+ <h1>The requested resource could not be found</h1>
+ </body>
+</html>
diff --git a/src/namestore/Makefile.am b/src/namestore/Makefile.am
index df4e5d662..61bcfbaf8 100644
--- a/src/namestore/Makefile.am
+++ b/src/namestore/Makefile.am
@@ -182,7 +182,8 @@ gnunet_namestore_fcfsd_LDADD = $(MHD_LIBS) \
$(top_builddir)/src/identity/libgnunetidentity.la \
libgnunetnamestore.la \
$(top_builddir)/src/util/libgnunetutil.la \
- $(GN_LIBINTL)
+ $(top_builddir)/src/json/libgnunetjson.la \
+ $(GN_LIBINTL) -ljansson
gnunet_namestore_fcfsd_CFLAGS = $(MHD_CFLAGS) $(AM_CFLAGS)
diff --git a/src/namestore/gnunet-namestore-fcfsd.c b/src/namestore/gnunet-namestore-fcfsd.c
index 313aea6fc..ec99d13e5 100644
--- a/src/namestore/gnunet-namestore-fcfsd.c
+++ b/src/namestore/gnunet-namestore-fcfsd.c
@@ -1,6 +1,6 @@
/*
This file is part of GNUnet.
- Copyright (C) 2012-2014 GNUnet e.V.
+ Copyright (C) 2012-2021 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
@@ -17,19 +17,13 @@
SPDX-License-Identifier: AGPL3.0-or-later
*/
+
/**
* @file gnunet-namestore-fcfsd.c
* @brief HTTP daemon that offers first-come-first-serve GNS domain registration
* @author Christian Grothoff
- *
- * TODO:
- * - need to track active zone info requests so we can cancel them
- * during shutdown, right?
- * - the code currently contains a 'race' between checking that the
- * domain name is available and allocating it to the new public key
- * (should this race be solved by namestore or by fcfsd?)
- * - nicer error reporting to browser
*/
+
#include "platform.h"
#include <microhttpd.h>
#include "gnunet_util_lib.h"
@@ -37,735 +31,618 @@
#include "gnunet_gnsrecord_lib.h"
#include "gnunet_namestore_service.h"
#include "gnunet_mhd_compat.h"
+#include "gnunet_json_lib.h"
/**
- * Invalid method page.
- */
-#define METHOD_ERROR \
- "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"><html lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\"><html><head><title>Illegal request</title></head><body>Go away.</body></html>"
-
-/**
- * Front page. (/)
- */
-#define MAIN_PAGE \
- "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"><html lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\"><html><head><title>GNUnet FCFS Authority Name Registration Service</title></head><body><form action=\"S\" method=\"post\">What is your desired domain name? (at most 63 lowercase characters, no dots allowed.) <input type=\"text\" name=\"domain\" /> <p> What is your public key? (Copy from gnunet-setup.) <input type=\"text\" name=\"pkey\" /> <input type=\"submit\" value=\"Next\" /><br/><a href=./Zoneinfo> List of all registered names </a></body></html>"
-
-/**
- * Second page (/S)
- */
-#define SUBMIT_PAGE \
- "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"><html lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\"><html><head><title>%s</title></head><body>%s</body></html>"
-
-/**
- * Fcfs zoneinfo page (/Zoneinfo)
- */
-#define ZONEINFO_PAGE \
- "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"><html lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\"><html><head><title>FCFS Zoneinfo</title></head><body><h1> FCFS Zoneinfo </h1><table border=\"1\"><th>name</th><th>PKEY</th>%s</table></body></html>"
-
-#define FCFS_ZONEINFO_URL "/Zoneinfo"
-
-/**
- * Mime type for HTML pages.
- */
-#define MIME_HTML "text/html"
-
-/**
- * Name of our cookie.
- */
-#define COOKIE_NAME "namestore-fcfsd"
-
-#define DEFAULT_ZONEINFO_BUFSIZE 2048
-
-/**
- * Phases a request goes through.
+ * Structure representing a static page.
+ * "Static" means that the server does not process the page before sending it
+ * to the client. Clients can still process the received data, for example
+ * because there are scripting elements within.
*/
-enum Phase
+struct StaticPage
{
/**
- * Start phase (parsing POST, checking).
- */
- RP_START = 0,
-
- /**
- * Lookup to see if the domain name is taken.
+ * Handle to file on disk.
*/
- RP_LOOKUP,
+ struct GNUNET_DISK_FileHandle *handle;
/**
- * Storing of the record.
+ * Size in bytes of the file.
*/
- RP_PUT,
+ uint64_t size;
/**
- * We're done with success.
+ * Cached response object to send to clients.
*/
- RP_SUCCESS,
-
- /**
- * Send failure message.
- */
- RP_FAIL
+ struct MHD_Response *response;
};
-
/**
- * Data kept per request.
+ * Structure containing some request-specific data.
*/
-struct Request
+struct RequestData
{
/**
- * Associated session.
- */
- // FIXME: struct Session *session;
-
- /**
- * Post processor handling form data (IF this is
- * a POST request).
+ * The connection this request was sent in.
*/
- struct MHD_PostProcessor *pp;
+ struct MHD_Connection *c;
/**
- * MHD Connection
- */
- struct MHD_Connection *con;
- /**
- * URL to serve in response to this POST (if this request
- * was a 'POST')
+ * Body of the response object.
*/
- const char *post_url;
+ char *body;
/**
- * Active request with the namestore.
+ * Length in bytes of the body.
*/
- struct GNUNET_NAMESTORE_QueueEntry *qe;
+ size_t body_length;
/**
- * Active lookup iterator
- * TODO: deprecate or fix lookup by label and use above member
+ * Response code.
*/
- struct GNUNET_NAMESTORE_ZoneIterator *lookup_it;
- /**
- * Active iteration with the namestore.
- */
- struct GNUNET_NAMESTORE_ZoneIterator *zi;
+ int code;
/**
- * Current processing phase.
+ * Task started to search for an entry in the namestore.
*/
- enum Phase phase;
+ struct GNUNET_NAMESTORE_QueueEntry *searching;
/**
- * Domain name submitted via form.
+ * Task started to iterate over the namestore.
*/
- char domain_name[64];
+ struct GNUNET_NAMESTORE_ZoneIterator *iterating;
/**
- * Public key submitted via form.
- */
- char public_key[128];
-
- struct GNUNET_IDENTITY_PublicKey pub;
-};
-
-/**
- * Zoneinfo request
- */
-struct ZoneinfoRequest
-{
- /**
- * List iterator
+ * Pointer used while processing POST data.
*/
- struct GNUNET_NAMESTORE_ZoneIterator *list_it;
+ void *ptr;
/**
- * Buffer
+ * Name requested to be registered.
*/
- char*zoneinfo;
+ char *register_name;
/**
- * Buffer length
+ * Key (encoded as a string) to be associated with the requested name.
*/
- size_t buf_len;
+ char *register_key;
/**
- * Buffer write offset
+ * Key to be associated with the requested name.
*/
- size_t write_offset;
+ struct GNUNET_IDENTITY_PublicKey key;
};
/**
- * MHD daemon reference.
+ * Name of the zone being managed.
*/
-static struct MHD_Daemon *httpd;
+static char *zone = NULL;
/**
- * Main HTTP task.
+ * The port the daemon is listening to for HTTP requests.
*/
-static struct GNUNET_SCHEDULER_Task *httpd_task;
+static unsigned long long port = 18080;
/**
- * Handle to the namestore.
+ * Connection with the namestore service.
*/
-static struct GNUNET_NAMESTORE_Handle *ns;
+static struct GNUNET_NAMESTORE_Handle *namestore = NULL;
/**
- * Private key for the fcfsd zone.
+ * Connection with the identity service.
*/
-static struct GNUNET_IDENTITY_PrivateKey fcfs_zone_pkey;
+static struct GNUNET_IDENTITY_Handle *identity = NULL;
/**
- * Connection to identity service.
+ * Private key of the zone.
*/
-static struct GNUNET_IDENTITY_Handle *identity;
+static const struct GNUNET_IDENTITY_PrivateKey *zone_key = NULL;
/**
- * Zoneinfo page we currently use.
+ * The HTTP daemon.
*/
-static struct MHD_Response *info_page;
+static struct MHD_Daemon *httpd = NULL;
/**
- * Task that runs #update_zoneinfo_page peridicially.
+ * Task executing the HTTP daemon.
*/
-static struct GNUNET_SCHEDULER_Task *uzp_task;
+static struct GNUNET_SCHEDULER_Task *httpd_task = NULL;
/**
- * Request for our ego.
+ * The main page, a.k.a. "index.html"
*/
-static struct GNUNET_IDENTITY_Operation *id_op;
+static struct StaticPage *main_page = NULL;
/**
- * Port we use for the HTTP server.
+ * Page indicating the requested resource could not be found.
*/
-static unsigned long long port;
+static struct StaticPage *notfound_page = NULL;
/**
- * Name of the zone we manage.
+ * Page indicating the requested resource could not be accessed, and other
+ * errors.
*/
-static char *zone;
-
+static struct StaticPage *forbidden_page = NULL;
/**
- * Task run whenever HTTP server operations are pending.
+ * Task ran at shutdown to clean up everything.
*
* @param cls unused
*/
static void
-do_httpd (void *cls);
+do_shutdown (void *cls)
+{
+ /* We cheat a bit here: the file descriptor is implicitly closed by MHD, so
+ calling `GNUNET_DISK_file_close' would generate a spurious warning message
+ in the log. Since that function does nothing but close the descriptor and
+ free the allocated memory, After destroying the response all that's left to
+ do is call `GNUNET_free'. */
+ if (NULL != main_page)
+ {
+ MHD_destroy_response (main_page->response);
+ GNUNET_free (main_page->handle);
+ GNUNET_free (main_page);
+ }
+ if (NULL != notfound_page)
+ {
+ MHD_destroy_response (main_page->response);
+ GNUNET_free (main_page->handle);
+ GNUNET_free (main_page);
+ }
+ if (NULL != forbidden_page)
+ {
+ MHD_destroy_response (main_page->response);
+ GNUNET_free (main_page->handle);
+ GNUNET_free (main_page);
+ }
+ if (NULL != namestore)
+ {
+ GNUNET_NAMESTORE_disconnect (namestore);
+ }
-/**
- * Schedule task to run MHD server now.
- */
-static void
-run_httpd_now ()
-{
- if (NULL != httpd_task)
+ if (NULL != identity)
{
- GNUNET_SCHEDULER_cancel (httpd_task);
- httpd_task = NULL;
+ GNUNET_IDENTITY_disconnect (identity);
}
- httpd_task = GNUNET_SCHEDULER_add_now (&do_httpd, NULL);
}
-
/**
- * Create fresh version of zone information.
+ * Called when the HTTP server has some pending operations.
+ *
+ * @param cls unused
*/
static void
-update_zoneinfo_page (void *cls);
-
+do_httpd (void *cls);
/**
- * Function called on error in zone iteration.
+ * Schedule a task to run MHD.
*/
static void
-zone_iteration_error (void *cls)
+run_httpd (void)
{
- struct ZoneinfoRequest *zr = cls;
+ fd_set rs;
+ fd_set ws;
+ fd_set es;
- zr->list_it = NULL;
- GNUNET_free (zr->zoneinfo);
- GNUNET_SCHEDULER_cancel (uzp_task);
- uzp_task = GNUNET_SCHEDULER_add_now (&update_zoneinfo_page,
- NULL);
-}
+ struct GNUNET_NETWORK_FDSet *grs = GNUNET_NETWORK_fdset_create ();
+ struct GNUNET_NETWORK_FDSet *gws = GNUNET_NETWORK_fdset_create ();
+ struct GNUNET_NETWORK_FDSet *ges = GNUNET_NETWORK_fdset_create ();
+ FD_ZERO (&rs);
+ FD_ZERO (&ws);
+ FD_ZERO (&es);
+
+ int max = -1;
+ GNUNET_assert (MHD_YES == MHD_get_fdset (httpd, &rs, &ws, &es, &max));
+
+ unsigned MHD_LONG_LONG timeout = 0;
+ struct GNUNET_TIME_Relative gtime = GNUNET_TIME_UNIT_FOREVER_REL;
+ if (MHD_YES == MHD_get_timeout (httpd, &timeout))
+ {
+ gtime = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+ timeout);
+ }
+
+ GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
+ GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
+ GNUNET_NETWORK_fdset_copy_native (ges, &es, max + 1);
+
+ httpd_task = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_HIGH,
+ gtime,
+ grs,
+ gws,
+ &do_httpd,
+ NULL);
+ GNUNET_NETWORK_fdset_destroy (grs);
+ GNUNET_NETWORK_fdset_destroy (gws);
+ GNUNET_NETWORK_fdset_destroy (ges);
+}
/**
- * Function called once the zone iteration is done.
+ * Called when the HTTP server has some pending operations.
+ *
+ * @param cls unused
*/
static void
-zone_iteration_end (void *cls)
+do_httpd (void *cls)
{
- struct ZoneinfoRequest *zr = cls;
- struct MHD_Response *response;
- char*full_page;
-
- zr->list_it = NULL;
-
- /* return static form */
- GNUNET_asprintf (&full_page,
- ZONEINFO_PAGE,
- zr->zoneinfo);
- response = MHD_create_response_from_buffer (strlen (full_page),
- (void *) full_page,
- MHD_RESPMEM_MUST_FREE);
- MHD_add_response_header (response,
- MHD_HTTP_HEADER_CONTENT_TYPE,
- MIME_HTML);
- MHD_destroy_response (info_page);
- info_page = response;
- GNUNET_free (zr->zoneinfo);
+ httpd_task = NULL;
+ MHD_run (httpd);
+ run_httpd ();
}
+static void
+run_httpd_now (void)
+{
+ if (NULL != httpd_task)
+ {
+ GNUNET_SCHEDULER_cancel (httpd_task);
+ httpd_task = NULL;
+ }
+ httpd_task = GNUNET_SCHEDULER_add_now (&do_httpd, NULL);
+}
/**
- * Process a record that was stored in the namestore, adding
- * the information to the HTML.
+ * Generate a JSON object.
*
- * @param cls closure with the `struct ZoneinfoRequest *`
- * @param zone_key private key of the zone; NULL on disconnect
- * @param name label of the records; NULL on disconnect
- * @param rd_len number of entries in @a rd array, 0 if label was deleted
- * @param rd array of records with data to store
+ * @param key the key for the first element
+ * @param value the value for the first element
+ * @param ... key-value pairs of the object, terminated by NULL
+ * @return a JSON string (allocated)
*/
-static void
-iterate_cb (void *cls,
- const struct GNUNET_IDENTITY_PrivateKey *zone_key,
- const char *name,
- unsigned int rd_len,
- const struct GNUNET_GNSRECORD_Data *rd)
+static char *
+make_json (const char *key, const char *value, ...)
{
- struct ZoneinfoRequest *zr = cls;
- size_t bytes_free;
- char*pkey;
- char*new_buf;
+ va_list args;
+ va_start(args, value);
+
+ json_t *obj = NULL;
- (void) zone_key;
- if (1 != rd_len)
+ obj = json_object ();
+ if (NULL == key || NULL == value)
{
- GNUNET_NAMESTORE_zone_iterator_next (zr->list_it,
- 1);
- return;
+ va_end (args);
+ return json_dumps (obj, JSON_COMPACT);
}
- if ((GNUNET_GNSRECORD_TYPE_PKEY != rd->record_type) &&
- (GNUNET_GNSRECORD_TYPE_EDKEY != rd->record_type))
+ json_object_set (obj, key, json_string (value));
+
+ char *k = va_arg (args, char *);
+ if (NULL == k)
{
- GNUNET_NAMESTORE_zone_iterator_next (zr->list_it,
- 1);
- return;
+ va_end (args);
+ return json_dumps (obj, JSON_COMPACT);
}
-
- bytes_free = zr->buf_len - zr->write_offset;
- pkey = GNUNET_GNSRECORD_value_to_string (rd->record_type,
- rd->data,
- rd->data_size);
- if (NULL == pkey)
+ char *v = va_arg (args, char *);
+ if (NULL == v)
{
- GNUNET_break (0);
- GNUNET_NAMESTORE_zone_iterator_next (zr->list_it,
- 1);
- return;
+ va_end (args);
+ return json_dumps (obj, JSON_COMPACT);
}
- if (bytes_free < (strlen (name) + strlen (pkey) + 40))
+
+ while (NULL != k && NULL != v)
{
- new_buf = GNUNET_malloc (zr->buf_len * 2);
- GNUNET_memcpy (new_buf, zr->zoneinfo, zr->write_offset);
- GNUNET_free (zr->zoneinfo);
- zr->zoneinfo = new_buf;
- zr->buf_len *= 2;
+ json_object_set (obj, k, json_string (v));
+ k = va_arg (args, char *);
+ if (NULL != k)
+ {
+ v = va_arg (args, char *);
+ }
}
- sprintf (zr->zoneinfo + zr->write_offset,
- "<tr><td>%s</td><td>%s</td></tr>",
- name,
- pkey);
- zr->write_offset = strlen (zr->zoneinfo);
- GNUNET_NAMESTORE_zone_iterator_next (zr->list_it,
- 1);
- GNUNET_free (pkey);
-}
+ va_end (args);
-/**
- * Handler that returns FCFS zoneinfo page.
- *
- * @param connection connection to use
- */
-static int
-serve_zoneinfo_page (struct MHD_Connection *connection)
-{
- return MHD_queue_response (connection,
- MHD_HTTP_OK,
- info_page);
-}
+ char *json = json_dumps (obj, JSON_COMPACT);
+ json_decref (obj);
+ return json;
+}
/**
- * Create fresh version of zone information.
+ * The namestore search task failed.
+ *
+ * @param cls the request data
*/
static void
-update_zoneinfo_page (void *cls)
+search_error_cb (void *cls)
{
- static struct ZoneinfoRequest zr;
-
- (void) cls;
- uzp_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES,
- &update_zoneinfo_page,
- NULL);
- if (NULL != zr.list_it)
- return;
- zr.zoneinfo = GNUNET_malloc (DEFAULT_ZONEINFO_BUFSIZE);
- zr.buf_len = DEFAULT_ZONEINFO_BUFSIZE;
- zr.write_offset = 0;
- zr.list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
- &fcfs_zone_pkey,
- &zone_iteration_error,
- &zr,
- &iterate_cb,
- &zr,
- &zone_iteration_end,
- &zr);
+ struct RequestData *rd = cls;
+ MHD_resume_connection (rd->c);
+ rd->searching = NULL;
+ rd->body = make_json ("error", "true",
+ "message", _ ("can not search the namestore"),
+ NULL);
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_INTERNAL_SERVER_ERROR;
+ run_httpd_now ();
}
-
/**
- * Handler that returns a simple static HTTP page.
+ * The lookup terminated with some results.
*
- * @param connection connection to use
- * @return #MHD_YES on success
+ * @param cls closure
+ * @param zone the private key of the zone
+ * @param label the result label
+ * @param count number of records found
+ * @param d records found
*/
-static int
-serve_main_page (struct MHD_Connection *connection)
+static void
+search_done_cb (void *cls,
+ const struct GNUNET_IDENTITY_PrivateKey *zone,
+ const char *label,
+ unsigned int count,
+ const struct GNUNET_GNSRECORD_Data *d)
{
- int ret;
- struct MHD_Response *response;
+ (void) zone;
+ (void) d;
- /* return static form */
- response = MHD_create_response_from_buffer (strlen (MAIN_PAGE),
- (void *) MAIN_PAGE,
- MHD_RESPMEM_PERSISTENT);
- MHD_add_response_header (response,
- MHD_HTTP_HEADER_CONTENT_TYPE,
- MIME_HTML);
- ret = MHD_queue_response (connection,
- MHD_HTTP_OK,
- response);
- MHD_destroy_response (response);
- return ret;
-}
+ struct RequestData *rd = cls;
+ MHD_resume_connection (rd->c);
+ rd->searching = NULL;
+ rd->body = make_json ("error", "false",
+ "free", (0 == count) ? "true" : "false",
+ NULL);
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_OK;
-/**
- * Send the 'SUBMIT_PAGE'.
- *
- * @param info information string to send to the user
- * @param request request information
- * @param connection connection to use
- */
-static int
-fill_s_reply (const char *info,
- struct Request *request,
- struct MHD_Connection *connection)
-{
- int ret;
- char *reply;
- struct MHD_Response *response;
-
- (void) request;
- GNUNET_asprintf (&reply,
- SUBMIT_PAGE,
- info,
- info);
- /* return static form */
- response = MHD_create_response_from_buffer (strlen (reply),
- (void *) reply,
- MHD_RESPMEM_MUST_FREE);
- MHD_add_response_header (response,
- MHD_HTTP_HEADER_CONTENT_TYPE,
- MIME_HTML);
- ret = MHD_queue_response (connection,
- MHD_HTTP_OK,
- response);
- MHD_destroy_response (response);
- return ret;
+ run_httpd_now ();
}
-
/**
- * Iterator over key-value pairs where the value
- * maybe made available in increments and/or may
- * not be zero-terminated. Used for processing
- * POST data.
+ * An error occurred while registering a name.
*
- * @param cls user-specified closure
- * @param kind type of the value
- * @param key 0-terminated key for the value
- * @param filename name of the uploaded file, NULL if not known
- * @param content_type mime-type of the data, NULL if not known
- * @param transfer_encoding encoding of the data, NULL if not known
- * @param data pointer to size bytes of data at the
- * specified offset
- * @param off offset of data in the overall value
- * @param size number of bytes in data available
- * @return #MHD_YES to continue iterating,
- * #MHD_NO to abort the iteration
+ * @param cls the connection
*/
-static MHD_RESULT
-post_iterator (void *cls,
- enum MHD_ValueKind kind,
- const char *key,
- const char *filename,
- const char *content_type,
- const char *transfer_encoding,
- const char *data,
- uint64_t off,
- size_t size)
+static void
+register_error_cb (void *cls)
{
- struct Request *request = cls;
-
- (void) kind;
- (void) filename;
- (void) content_type;
- (void) transfer_encoding;
- if (0 == strcmp ("domain", key))
- {
- if (size + off >= sizeof(request->domain_name))
- size = sizeof(request->domain_name) - off - 1;
- GNUNET_memcpy (&request->domain_name[off],
- data,
- size);
- request->domain_name[size + off] = '\0';
- return MHD_YES;
- }
- if (0 == strcmp ("pkey", key))
- {
- if (size + off >= sizeof(request->public_key))
- size = sizeof(request->public_key) - off - 1;
- GNUNET_memcpy (&request->public_key[off],
- data,
- size);
- request->public_key[size + off] = '\0';
- return MHD_YES;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _ ("Unsupported form value `%s'\n"),
- key);
- return MHD_YES;
+ struct RequestData *rd = cls;
+
+ MHD_resume_connection (rd->c);
+ rd->searching = NULL;
+ rd->body = make_json ("error", "true",
+ "message", _ ("unable to scan namestore"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_INTERNAL_SERVER_ERROR;
+ run_httpd_now ();
}
-
/**
- * Continuation called to notify client about result of the
- * operation.
+ * A name/key pair has been successfully registered, or maybe not.
*
- * @param cls closure
- * @param success #GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
- * #GNUNET_NO if content was already there
- * #GNUNET_YES (or other positive value) on success
- * @param emsg NULL on success, otherwise an error message
+ * @param cls the connection
+ * @param status result of the operation
+ * @param emsg error message if any
*/
static void
-put_continuation (void *cls,
- int32_t success,
+register_done_cb (void *cls,
+ int32_t status,
const char *emsg)
{
- struct Request *request = cls;
+ struct RequestData *rd = cls;
+
+ MHD_resume_connection (rd->c);
+ rd->searching = NULL;
- request->qe = NULL;
- if (0 >= success)
+ if (GNUNET_SYSERR == status || GNUNET_NO == status)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _ ("Failed to create record for domain `%s': %s\n"),
- request->domain_name,
+ _ ("Failed to create record for `%s': %s\n"),
+ rd->register_name,
emsg);
- request->phase = RP_FAIL;
+ rd->body = make_json ("error", "true",
+ "message", emsg);
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_INTERNAL_SERVER_ERROR;
}
else
- request->phase = RP_SUCCESS;
- MHD_resume_connection (request->con);
+ {
+ rd->body = make_json ("error", "false",
+ "message", _ ("no errors"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_OK;
+ }
+
run_httpd_now ();
}
-
/**
- * Function called if we had an error in zone-to-name mapping.
+ * Attempt to register the requested name.
+ *
+ * @param cls the connection
+ * @param key the zone key
+ * @param label name of the record
+ * @param count number of records found
+ * @param d records
*/
static void
-zone_to_name_error (void *cls)
+register_do_cb (void *cls,
+ const struct GNUNET_IDENTITY_PrivateKey *key,
+ const char *label,
+ unsigned int count,
+ const struct GNUNET_GNSRECORD_Data *d)
{
- struct Request *request = cls;
+ (void) key;
+ (void) d;
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _ ("Error when mapping zone to name\n"));
- request->phase = RP_FAIL;
- MHD_resume_connection (request->con);
- run_httpd_now ();
-}
+ struct RequestData *rd = cls;
+ rd->searching = NULL;
-/**
- * Test if a name mapping was found, if so, refuse. If not, initiate storing of the record.
- *
- * @param cls closure
- * @param zone_key public key of the zone
- * @param name name that is being mapped (at most 255 characters long)
- * @param rd_count number of entries in @a rd array
- * @param rd array of records with data to store
- */
-static void
-zone_to_name_cb (void *cls,
- const struct GNUNET_IDENTITY_PrivateKey *zone_key,
- const char *name,
- unsigned int rd_count,
- const struct GNUNET_GNSRECORD_Data *rd)
-{
- struct Request *request = cls;
- struct GNUNET_GNSRECORD_Data r;
- char *rdata;
-
- (void) rd;
- (void) zone_key;
- request->qe = NULL;
- if (0 != rd_count)
+ if (0 != count)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _ ("Found existing name `%s' for the given key\n"),
- name);
- request->phase = RP_FAIL;
- MHD_resume_connection (request->con);
+ _ ("The requested key `%s' exists as `%s'\n"),
+ rd->register_key,
+ label);
+
+ MHD_resume_connection (rd->c);
+ rd->searching = NULL;
+ rd->body = make_json ("error", "true",
+ "message", _ ("key exists"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_FORBIDDEN;
run_httpd_now ();
return;
}
- if (GNUNET_OK != GNUNET_GNSRECORD_data_from_identity (&request->pub,
- &rdata,
- &r.data_size,
- &r.record_type))
+
+ struct GNUNET_GNSRECORD_Data gd;
+ char *gdraw = NULL;
+
+ if (GNUNET_OK != GNUNET_GNSRECORD_data_from_identity (&(rd->key),
+ &gdraw,
+ &(gd.data_size),
+ &(gd.record_type)))
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _ ("Error creating record data.\n"));
- request->phase = RP_FAIL;
- MHD_resume_connection (request->con);
+ _ ("Error creating record data\n"));
+ MHD_resume_connection (rd->c);
+ rd->searching = NULL;
+ rd->body = make_json ("error", "true",
+ "message", _ ("unable to store record"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_INTERNAL_SERVER_ERROR;
run_httpd_now ();
return;
}
- r.data = rdata;
- r.expiration_time = UINT64_MAX;
- r.flags = GNUNET_GNSRECORD_RF_NONE;
- request->qe = GNUNET_NAMESTORE_records_store (ns,
- &fcfs_zone_pkey,
- request->domain_name,
- 1, &r,
- &put_continuation,
- request);
- GNUNET_free (rdata);
-}
+ gd.data = gdraw;
+ gd.expiration_time = UINT64_MAX;
+ gd.flags = GNUNET_GNSRECORD_RF_NONE;
+ rd->searching = GNUNET_NAMESTORE_records_store (namestore,
+ zone_key,
+ rd->register_name,
+ 1,
+ &gd,
+ &register_done_cb,
+ rd);
+
+ GNUNET_free (gdraw);
+}
/**
- * We encountered an error in the name lookup.
+ * An error occurred while iterating the namestore.
+ *
+ * @param cls the connection
*/
static void
-lookup_it_error (void *cls)
+iterate_error_cb (void *cls)
{
- struct Request *request = cls;
-
- MHD_resume_connection (request->con);
- request->qe = NULL;
- request->phase = RP_FAIL;
+ struct RequestData *rd = cls;
+
+ MHD_resume_connection (rd->c);
+ rd->iterating = NULL;
+ rd->body = make_json ("error", "true",
+ "message", _ ("unable to scan namestore"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_INTERNAL_SERVER_ERROR;
run_httpd_now ();
}
-
/**
- * We got a block back from the namestore. Decrypt it
- * and continue to process the result.
+ * A block was received from the namestore.
*
- * @param cls the 'struct Request' we are processing
- * @param zonekey private key of the zone; NULL on disconnect
- * @param label label of the records; NULL on disconnect
- * @param rd_count number of entries in @a rd array, 0 if label was deleted
- * @param rd array of records with data to store
+ * @param cls the connection
+ * @param key the zone key
+ * @param label the records' label
+ * @param count number of records found
+ * @param d the found records
*/
static void
-lookup_it_processor (void *cls,
- const struct GNUNET_IDENTITY_PrivateKey *zonekey,
- const char *label,
- unsigned int rd_count,
- const struct GNUNET_GNSRECORD_Data *rd)
+iterate_do_cb (void *cls,
+ const struct GNUNET_IDENTITY_PrivateKey *key,
+ const char *label,
+ unsigned int count,
+ const struct GNUNET_GNSRECORD_Data *d)
{
- struct Request *request = cls;
-
+ (void) key;
(void) label;
- (void) rd;
- (void) zonekey;
- if (0 == strcmp (label, request->domain_name))
+ (void) d;
+
+ struct RequestData *rd = cls;
+
+ if (0 == strcmp (label, rd->register_name))
{
- GNUNET_break (0 != rd_count);
+ GNUNET_break (0 != count);
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _ ("Found %u existing records for domain `%s'\n"),
- rd_count,
- request->domain_name);
- request->phase = RP_FAIL;
+ _ ("Requested name `%s' exists with `%u' records\n"),
+ rd->register_name,
+ count);
+
+ MHD_resume_connection (rd->c);
+ rd->body = make_json ("error", "true",
+ "message", _ ("name exists\n"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_FORBIDDEN;
+ GNUNET_NAMESTORE_zone_iteration_stop (rd->iterating);
+ run_httpd_now ();
+ return;
}
- GNUNET_NAMESTORE_zone_iterator_next (request->lookup_it, 1);
-}
+ GNUNET_NAMESTORE_zone_iterator_next (rd->iterating, 1);
+}
+/**
+ * All entries in the namestore have been iterated over.
+ *
+ * @param cls the connection
+ */
static void
-lookup_it_finished (void *cls)
+iterate_done_cb (void *cls)
{
- struct Request *request = cls;
-
- if (RP_FAIL == request->phase)
- {
- MHD_resume_connection (request->con);
- run_httpd_now ();
- return;
- }
- if (GNUNET_OK !=
- GNUNET_IDENTITY_public_key_from_string (request->public_key,
- &request->pub))
- {
- GNUNET_break (0);
- request->phase = RP_FAIL;
- MHD_resume_connection (request->con);
- run_httpd_now ();
- return;
- }
- request->qe = GNUNET_NAMESTORE_zone_to_name (ns,
- &fcfs_zone_pkey,
- &request->pub,
- &zone_to_name_error,
- request,
- &zone_to_name_cb,
- request);
+ struct RequestData *rd = cls;
+
+ rd->iterating = NULL;
+
+ /* See if the key was not registered already */
+ rd->searching = GNUNET_NAMESTORE_zone_to_name (namestore,
+ zone_key,
+ &(rd->key),
+ &register_error_cb,
+ rd,
+ &register_do_cb,
+ rd);
}
+/**
+ * Generate a response containing JSON and send it to the client.
+ *
+ * @param c the connection
+ * @param body the response body
+ * @param length the body length in bytes
+ * @param code the response code
+ * @return MHD_NO on error
+ */
+static MHD_RESULT
+serve_json (struct MHD_Connection *c,
+ char *body,
+ size_t length,
+ int code)
+{
+ struct MHD_Response *response =
+ MHD_create_response_from_buffer (length,
+ body,
+ MHD_RESPMEM_PERSISTENT);
+ MHD_RESULT r = MHD_queue_response (c, code, response);
+ MHD_destroy_response (response);
+ return r;
+}
/**
- * Main MHD callback for handling requests.
+ * Send a response back to a connected client.
*
* @param cls unused
- * @param connection MHD connection handle
- * @param url the requested url
- * @param method the HTTP method used ("GET", "PUT", etc.)
- * @param version the HTTP version string ("HTTP/1.1" for version 1.1, etc.)
- * @param upload_data the data being uploaded (excluding HEADERS,
- * for a POST that fits into memory and that is encoded
- * with a supported encoding, the POST data will NOT be
- * given in upload_data and is instead available as
- * part of MHD_get_connection_values; very large POST
- * data *will* be made available incrementally in
- * upload_data)
- * @param upload_data_size set initially to the size of the
- * @a upload_data provided; the method must update this
- * value to the number of bytes NOT processed;
- * @param ptr pointer to location where we store the 'struct Request'
- * @return #MHD_YES if the connection was handled successfully,
- * #MHD_NO if the socket must be closed due to a serious
- * error while handling the request
+ * @param connection the connection with the client
+ * @param url the requested address
+ * @param method the HTTP method used
+ * @param version the protocol version (including the "HTTP/" part)
+ * @param upload_data data sent with a POST request
+ * @param upload_data_size length in bytes of the POST data
+ * @param ptr used to pass data between request handling phases
+ * @return MHD_NO on error
*/
static MHD_RESULT
create_response (void *cls,
@@ -777,300 +654,249 @@ create_response (void *cls,
size_t *upload_data_size,
void **ptr)
{
- struct MHD_Response *response;
- struct Request *request;
- struct GNUNET_IDENTITY_PublicKey pub;
- MHD_RESULT ret;
-
(void) cls;
(void) version;
- if ((0 == strcmp (method, MHD_HTTP_METHOD_GET)) ||
- (0 == strcmp (method, MHD_HTTP_METHOD_HEAD)))
- {
- if (0 == strcmp (url, FCFS_ZONEINFO_URL))
- ret = serve_zoneinfo_page (connection);
- else
- ret = serve_main_page (connection);
- if (ret != MHD_YES)
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _ ("Failed to create page for `%s'\n"),
- url);
- return ret;
- }
- if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
+
+ struct RequestData *rd = *ptr;
+
+ if (0 == strcmp (method, MHD_HTTP_METHOD_GET))
{
- request = *ptr;
- if (NULL == request)
+ /* Handle a previously suspended request */
+ if (NULL != rd)
+ {
+ return serve_json (rd->c, rd->body, rd->body_length, rd->code);
+ }
+
+ if (0 == strcmp ("/", url))
{
- request = GNUNET_new (struct Request);
- request->con = connection;
- *ptr = request;
- request->pp = MHD_create_post_processor (connection,
- 1024,
- &post_iterator,
- request);
- if (NULL == request->pp)
+ return MHD_queue_response (connection,
+ MHD_HTTP_OK,
+ main_page->response);
+ }
+
+ if (0 == strcmp ("/search", url))
+ {
+ const char *name = MHD_lookup_connection_value (connection,
+ MHD_GET_ARGUMENT_KIND,
+ "name");
+ if (NULL == name)
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _ ("Failed to setup post processor for `%s'\n"),
- url);
- return MHD_NO; /* internal error */
+ return MHD_queue_response (connection,
+ MHD_HTTP_BAD_REQUEST,
+ forbidden_page->response);
}
+
+ MHD_suspend_connection (connection);
+ rd = GNUNET_new (struct RequestData);
+ rd->c = connection;
+ rd->searching = GNUNET_NAMESTORE_records_lookup (namestore,
+ zone_key,
+ name,
+ &search_error_cb,
+ rd,
+ &search_done_cb,
+ rd);
+ *ptr = rd;
return MHD_YES;
}
- if (NULL != request->pp)
+
+ return MHD_queue_response (connection,
+ MHD_HTTP_NOT_FOUND,
+ notfound_page->response);
+ }
+
+ if (0 == strcmp (method, MHD_HTTP_METHOD_HEAD))
+ {
+ /* We take a shortcut here by always serving the main page: starting a
+ namestore lookup, allocating the necessary resources, waiting for the
+ lookup to complete and then discard everything just because it was a HEAD
+ and thus only the headers are significative, is an unnecessary waste of
+ resources. The handling of this method could be smarter, for example by
+ sending a proper content type header based on the endpoint, but this is
+ not a service in which HEAD requests are significant, so there's no need
+ to spend too much time here. */
+ return MHD_queue_response (connection,
+ MHD_HTTP_OK,
+ main_page->response);
+ }
+
+ if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
+ {
+ if (0 == strcmp ("/register", url))
{
- /* evaluate POST data */
- MHD_post_process (request->pp,
- upload_data,
- *upload_data_size);
- if (0 != *upload_data_size)
+ /* Handle a previously suspended request */
+ if (NULL != rd && NULL != rd->body)
{
- *upload_data_size = 0;
- return MHD_YES;
+ return serve_json (rd->c, rd->body, rd->body_length, rd->code);
}
- /* done with POST data, serve response */
- MHD_destroy_post_processor (request->pp);
- request->pp = NULL;
- }
- if (GNUNET_OK !=
- GNUNET_IDENTITY_public_key_from_string (request->public_key,
- &pub))
- {
- /* parse error */
- return fill_s_reply ("Failed to parse given public key",
- request, connection);
- }
- switch (request->phase)
- {
- case RP_START:
- if (NULL != strchr (request->domain_name, (int) '.'))
+
+ if (NULL == rd)
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _ ("Domain name must not contain `.'\n"));
- request->phase = RP_FAIL;
- return fill_s_reply ("Domain name must not contain `.', sorry.",
- request,
- connection);
+ rd = GNUNET_new (struct RequestData);
+ rd->c = connection;
+ rd->body = NULL;
+ rd->ptr = NULL;
+ *ptr = rd;
}
- if (NULL != strchr (request->domain_name, (int) '+'))
+
+ json_t *json = NULL;
+ enum GNUNET_JSON_PostResult result =
+ GNUNET_JSON_post_parser (32 * 1024,
+ connection,
+ &(rd->ptr),
+ upload_data,
+ upload_data_size,
+ &json);
+
+ switch (result)
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _ ("Domain name must not contain `+'\n"));
- request->phase = RP_FAIL;
- return fill_s_reply ("Domain name must not contain `+', sorry.",
- request, connection);
+ case GNUNET_JSON_PR_CONTINUE:
+ /* Keep processing POST data */
+ return MHD_YES;
+ case GNUNET_JSON_PR_OUT_OF_MEMORY:
+ case GNUNET_JSON_PR_REQUEST_TOO_LARGE:
+ rd->body = make_json ("error", "true",
+ "message", _ ("unable to process submitted data"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_PAYLOAD_TOO_LARGE;
+ return MHD_YES;
+ case GNUNET_JSON_PR_JSON_INVALID:
+ rd->body = make_json ("error", "true",
+ "message", _ ("the submitted data is invalid"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_BAD_REQUEST;
+ return MHD_YES;
+ default:
+ break;
}
- request->phase = RP_LOOKUP;
- MHD_suspend_connection (request->con);
- request->lookup_it
- = GNUNET_NAMESTORE_zone_iteration_start (ns,
- &fcfs_zone_pkey,
- &lookup_it_error,
- request,
- &lookup_it_processor,
- request,
- &lookup_it_finished,
- request);
- break;
-
- case RP_LOOKUP:
- break;
-
- case RP_PUT:
- break;
-
- case RP_FAIL:
- return fill_s_reply ("Request failed, sorry.",
- request, connection);
-
- case RP_SUCCESS:
- return fill_s_reply ("Success.",
- request, connection);
-
- default:
- GNUNET_break (0);
- return MHD_NO;
- }
- return MHD_YES; /* will have a reply later... */
- }
- /* unsupported HTTP method */
- response = MHD_create_response_from_buffer (strlen (METHOD_ERROR),
- (void *) METHOD_ERROR,
- MHD_RESPMEM_PERSISTENT);
- ret = MHD_queue_response (connection,
- MHD_HTTP_NOT_ACCEPTABLE,
- response);
- MHD_destroy_response (response);
- return ret;
-}
+ /* POST data has been read in its entirety */
-/**
- * Callback called upon completion of a request.
- * Decrements session reference counter.
- *
- * @param cls not used
- * @param connection connection that completed
- * @param con_cls session handle
- * @param toe status code
- */
-static void
-request_completed_callback (void *cls,
- struct MHD_Connection *connection,
- void **con_cls,
- enum MHD_RequestTerminationCode toe)
-{
- struct Request *request = *con_cls;
+ const char *name = json_string_value(json_object_get(json, "name"));
+ const char *key = json_string_value(json_object_get(json, "key"));
+ if (NULL == name || NULL == key || 0 == strlen (name) || 0 == strlen (key))
+ {
+ json_decref (json);
+ rd->body = make_json ("error", "true",
+ "message", _ ("invalid parameters"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_BAD_REQUEST;
+ return MHD_YES;
+ }
- (void) cls;
- (void) connection;
- (void) toe;
- if (NULL == request)
- return;
- if (NULL != request->pp)
- MHD_destroy_post_processor (request->pp);
- if (NULL != request->qe)
- GNUNET_NAMESTORE_cancel (request->qe);
- GNUNET_free (request);
-}
+ rd->register_name = strdup (name);
+ rd->register_key = strdup (key);
+ json_decref (json);
+ GNUNET_JSON_post_parser_cleanup (rd->ptr);
-#define UNSIGNED_MHD_LONG_LONG unsigned MHD_LONG_LONG
+ if (NULL != strchr (rd->register_name, '.') ||
+ NULL != strchr (rd->register_name, '+'))
+ {
+ rd->body = make_json ("error", "true",
+ "message", _ ("invalid name"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_BAD_REQUEST;
+ }
+ if (GNUNET_OK != GNUNET_IDENTITY_public_key_from_string (rd->register_key,
+ &(rd->key)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _ ("Unable to parse key %s\n"),
+ rd->register_key);
+
+ rd->body = make_json ("error", "true",
+ "message", _ ("unable to parse key"));
+ rd->body_length = strlen (rd->body);
+ rd->code = MHD_HTTP_INTERNAL_SERVER_ERROR;
+ return MHD_YES;
+ }
-/**
- * Schedule tasks to run MHD server.
- */
-static void
-run_httpd ()
-{
- fd_set rs;
- fd_set ws;
- fd_set es;
- struct GNUNET_NETWORK_FDSet *wrs;
- struct GNUNET_NETWORK_FDSet *wws;
- struct GNUNET_NETWORK_FDSet *wes;
- int max;
- int haveto;
- UNSIGNED_MHD_LONG_LONG timeout;
- struct GNUNET_TIME_Relative tv;
+ MHD_suspend_connection (connection);
+ /* See if the requested name is free */
+ rd->iterating =
+ GNUNET_NAMESTORE_zone_iteration_start (namestore,
+ zone_key,
+ &iterate_error_cb,
+ rd,
+ &iterate_do_cb,
+ rd,
+ &iterate_done_cb,
+ rd);
+ return MHD_YES;
+ }
- FD_ZERO (&rs);
- FD_ZERO (&ws);
- FD_ZERO (&es);
- wrs = GNUNET_NETWORK_fdset_create ();
- wes = GNUNET_NETWORK_fdset_create ();
- wws = GNUNET_NETWORK_fdset_create ();
- max = -1;
- GNUNET_assert (MHD_YES ==
- MHD_get_fdset (httpd,
- &rs,
- &ws,
- &es,
- &max));
- haveto = MHD_get_timeout (httpd,
- &timeout);
- if (haveto == MHD_YES)
- tv.rel_value_us = (uint64_t) timeout * 1000LL;
- else
- tv = GNUNET_TIME_UNIT_FOREVER_REL;
- GNUNET_NETWORK_fdset_copy_native (wrs,
- &rs,
- max + 1);
- GNUNET_NETWORK_fdset_copy_native (wws,
- &ws,
- max + 1);
- GNUNET_NETWORK_fdset_copy_native (wes,
- &es,
- max + 1);
- httpd_task =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_HIGH,
- tv,
- wrs,
- wws,
- &do_httpd,
- NULL);
- GNUNET_NETWORK_fdset_destroy (wrs);
- GNUNET_NETWORK_fdset_destroy (wws);
- GNUNET_NETWORK_fdset_destroy (wes);
-}
+ return MHD_queue_response (connection,
+ MHD_HTTP_FORBIDDEN,
+ forbidden_page->response);
+ }
+ return MHD_queue_response (connection,
+ MHD_HTTP_NOT_IMPLEMENTED,
+ forbidden_page->response);
+}
/**
- * Task run whenever HTTP server operations are pending.
+ * Called when a request is completed.
*
* @param cls unused
+ * @param connection the connection
+ * @param ptr connection-specific data
+ * @param status status code
*/
static void
-do_httpd (void *cls)
+completed_cb (void *cls,
+ struct MHD_Connection *connection,
+ void **ptr,
+ enum MHD_RequestTerminationCode status)
{
(void) cls;
- httpd_task = NULL;
- MHD_run (httpd);
- run_httpd ();
-}
+ (void) connection;
+ (void) status;
+ struct RequestData *rd = *ptr;
-/**
- * Task run on shutdown. Cleans up everything.
- *
- * @param cls unused
- */
-static void
-do_shutdown (void *cls)
-{
- (void) cls;
- if (NULL != httpd_task)
+ if (NULL == rd)
{
- GNUNET_SCHEDULER_cancel (httpd_task);
- httpd_task = NULL;
+ return;
}
- if (NULL != uzp_task)
+
+ if (NULL == rd->body)
{
- GNUNET_SCHEDULER_cancel (uzp_task);
- uzp_task = NULL;
+ GNUNET_free (rd->body);
}
- if (NULL != ns)
+
+ if (NULL != rd->searching)
{
- GNUNET_NAMESTORE_disconnect (ns);
- ns = NULL;
+ GNUNET_NAMESTORE_cancel (rd->searching);
}
- if (NULL != httpd)
+
+ if (NULL != rd->register_name)
{
- MHD_stop_daemon (httpd);
- httpd = NULL;
+ GNUNET_free (rd->register_name);
}
- if (NULL != id_op)
+
+ if (NULL != rd->register_key)
{
- GNUNET_IDENTITY_cancel (id_op);
- id_op = NULL;
+ GNUNET_free (rd->register_key);
}
- if (NULL != identity)
+
+ if (NULL != rd->iterating)
{
- GNUNET_IDENTITY_disconnect (identity);
- identity = NULL;
+ GNUNET_NAMESTORE_zone_iteration_stop (rd->iterating);
}
-}
+ GNUNET_free (rd);
+}
/**
- * Method called to inform about the egos of this peer.
- *
- * When used with #GNUNET_IDENTITY_create or #GNUNET_IDENTITY_get, this
- * function is only called ONCE, and 'NULL' being passed in @a ego does
- * indicate an error (for example because name is taken or no default value is
- * known). If @a ego is non-NULL and if '*ctx' is set in those callbacks, the
- * value WILL be passed to a subsequent call to the identity callback of
- * #GNUNET_IDENTITY_connect (if that one was not NULL).
+ * Called for each ego provided by the identity service.
*
- * @param cls closure, NULL
- * @param ego ego handle
- * @param ctx context for application to store data for this ego
- * (during the lifetime of this process, initially NULL)
- * @param name name assigned by the user for this ego,
- * NULL if the user just deleted the ego and it
- * must thus no longer be used
+ * @param cls closure
+ * @param ego the ego
+ * @param ctx application-provided data for the ego
+ * @param name the ego name
*/
static void
identity_cb (void *cls,
@@ -1078,15 +904,14 @@ identity_cb (void *cls,
void **ctx,
const char *name)
{
- int options;
-
(void) cls;
(void) ctx;
- if (NULL == name)
- return;
- if (0 != strcmp (name,
- zone))
+
+ if (NULL == name || 0 != strcmp (name, zone))
+ {
return;
+ }
+
if (NULL == ego)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
@@ -1094,30 +919,24 @@ identity_cb (void *cls,
GNUNET_SCHEDULER_shutdown ();
return;
}
- fcfs_zone_pkey = *GNUNET_IDENTITY_ego_get_private_key (ego);
- options = MHD_USE_DUAL_STACK | MHD_USE_DEBUG | MHD_ALLOW_SUSPEND_RESUME;
+ zone_key = GNUNET_IDENTITY_ego_get_private_key (ego);
+
+ int flags = MHD_USE_DUAL_STACK | MHD_USE_DEBUG | MHD_ALLOW_SUSPEND_RESUME;
do
{
- httpd = MHD_start_daemon (options,
+ httpd = MHD_start_daemon (flags,
(uint16_t) port,
NULL, NULL,
&create_response, NULL,
- MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 128,
- MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned
- int) 1,
- MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 16,
- MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (4
- *
- 1024),
- MHD_OPTION_NOTIFY_COMPLETED,
- &request_completed_callback, NULL,
+ MHD_OPTION_CONNECTION_LIMIT, 128,
+ MHD_OPTION_PER_IP_CONNECTION_LIMIT, 1,
+ MHD_OPTION_CONNECTION_TIMEOUT, 4 * 1024,
+ MHD_OPTION_NOTIFY_COMPLETED, &completed_cb, NULL,
MHD_OPTION_END);
- if (MHD_USE_DEBUG == options)
- break;
- options = MHD_USE_DEBUG;
- }
- while (NULL == httpd);
+ flags = MHD_USE_DEBUG;
+ } while (NULL == httpd && flags != MHD_USE_DEBUG);
+
if (NULL == httpd)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
@@ -1125,105 +944,158 @@ identity_cb (void *cls,
GNUNET_SCHEDULER_shutdown ();
return;
}
+
run_httpd ();
}
+/**
+ * Open a file on disk and generate a response object for it.
+ *
+ * @param name name of the file to open
+ * @param basedir directory where the file is located
+ * @return #GNUNET_SYSERR on error
+ */
+static struct StaticPage *
+open_static_page (const char *name, const char *basedir)
+{
+ char *fullname = NULL;
+ GNUNET_asprintf (&fullname, "%s/fcfsd-%s", basedir, name);
+
+ struct GNUNET_DISK_FileHandle *f =
+ GNUNET_DISK_file_open (fullname,
+ GNUNET_DISK_OPEN_READ,
+ GNUNET_DISK_PERM_NONE);
+ GNUNET_free (fullname);
+
+ if (NULL == f)
+ {
+ return NULL;
+ }
+
+ off_t size = 0;
+ if (GNUNET_SYSERR == GNUNET_DISK_file_handle_size (f, &size))
+ {
+ GNUNET_DISK_file_close (f);
+ return NULL;
+ }
+
+ struct MHD_Response *response =
+ MHD_create_response_from_fd64 (size,
+ f->fd);
+
+ if (NULL == response)
+ {
+ GNUNET_DISK_file_close (f);
+ return NULL;
+ }
+
+ struct StaticPage *page = GNUNET_new (struct StaticPage);
+ page->handle = f;
+ page->size = (uint64_t) size;
+ page->response = response;
+ return page;
+}
/**
- * Main function that will be run.
+ * Called after the service is up.
*
* @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be NULL!)
- * @param cfg configuration
+ * @param args remaining command line arguments
+ * @param cfgfile name of the configuration file
+ * @param cfg the service configuration
*/
static void
-run (void *cls,
- char *const *args,
- const char *cfgfile,
- const struct GNUNET_CONFIGURATION_Handle *cfg)
+run_service (void *cls,
+ char *const *args,
+ const char *cfgfile,
+ const struct GNUNET_CONFIGURATION_Handle *cfg)
{
(void) cls;
(void) args;
(void) cfgfile;
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg,
- "fcfsd",
- "HTTPPORT",
- &port))
+
+ GNUNET_log_setup ("fcfsd", "WARNING", NULL);
+
+ if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg,
+ "fcfsd",
+ "HTTPPORT",
+ &port))
{
- GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
- "fcfsd", "HTTPPORT");
- return;
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _ ("No port specified, using default value\n"));
}
- ns = GNUNET_NAMESTORE_connect (cfg);
- if (NULL == ns)
+
+ GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
+
+ namestore = GNUNET_NAMESTORE_connect (cfg);
+ if (NULL == namestore)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_ ("Failed to connect to namestore\n"));
+ GNUNET_SCHEDULER_shutdown ();
return;
}
- identity = GNUNET_IDENTITY_connect (cfg,
- &identity_cb,
- NULL);
+
+ identity = GNUNET_IDENTITY_connect (cfg, &identity_cb, NULL);
if (NULL == identity)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_ ("Failed to connect to identity\n"));
+ GNUNET_SCHEDULER_shutdown ();
return;
}
- uzp_task = GNUNET_SCHEDULER_add_now (&update_zoneinfo_page,
- NULL);
- GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
- NULL);
-}
+ char *basedir = NULL;
+ if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg,
+ "fcfsd",
+ "HTMLDIR",
+ &basedir))
+ {
+ basedir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_DATADIR);
+ }
+
+ main_page = open_static_page ("index.html", basedir);
+ notfound_page = open_static_page ("notfound.html", basedir);
+ forbidden_page = open_static_page ("forbidden.html", basedir);
+
+ GNUNET_free (basedir);
+
+ if (NULL == main_page || NULL == notfound_page || NULL == forbidden_page)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _ ("Unable to set up the daemon\n"));
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+}
/**
- * The main function for the fcfs daemon.
+ * The main function of the fcfs daemon.
*
* @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
+ * @parsm argv the command line argumens
+ * @return 0 successful exit, a different value otherwise
*/
int
-main (int argc,
- char *const *argv)
+main (int argc, char *const *argv)
{
struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_option_mandatory
- (GNUNET_GETOPT_option_string ('z',
- "zone",
- "EGO",
- gettext_noop (
- "name of the zone that is to be managed by FCFSD"),
- &zone)),
+ (GNUNET_GETOPT_option_string ('z',
+ "zone",
+ "EGO",
+ gettext_noop ("name of the zone managed by FCFSD"),
+ &zone)),
GNUNET_GETOPT_OPTION_END
};
- int ret;
-
- if (GNUNET_OK !=
- GNUNET_STRINGS_get_utf8_args (argc, argv,
- &argc, &argv))
- return 2;
-
- GNUNET_log_setup ("fcfsd",
- "WARNING",
- NULL);
- ret =
- (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc,
- argv,
- "gnunet-namestore-fcfsd",
- _ (
- "GNU Name System First Come First Serve name registration service"),
- options,
- &run, NULL)) ? 0 : 1;
- GNUNET_free_nz ((void *) argv);
- // FIXME
- // GNUNET_CRYPTO_ecdsa_key_clear (&fcfs_zone_pkey);
- return ret;
-}
-
-/* end of gnunet-namestore-fcfsd.c */
+ return ((GNUNET_OK == GNUNET_PROGRAM_run (argc,
+ argv,
+ "gnunet-namestore-fcfsd",
+ _ ("GNU Name System First-Come-First-Served name registration service"),
+ options,
+ &run_service,
+ NULL)) ?
+ 0 :
+ 1);
+}