Initial HTCPCP implementation

modules/access/Modules.am

@@ -63,6 +63,7 @@ SOURCES_access_attachment = attachment.c
 SOURCES_access_vdr = vdr.c
 SOURCES_libbluray = bluray.c
 SOURCES_decklink = decklink.cpp
+SOURCES_htcpcp = htcpcp.c
 
 
 SOURCES_access_rar = rar/rar.c rar/rar.h rar/access.c

modules/access/htcpcp.c

+/*****************************************************************************
+ * htcpcp.c: HTCPCP module for VLC media player
+ *****************************************************************************
+ * Copyright © 2011 Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_access.h>
+#include <vlc_dialog.h>
+#include <vlc_network.h>
+#include <vlc_url.h>
+
+#define IPPORT_HTCPCP 80
+
+static int Open (vlc_object_t *);
+static void Close (vlc_object_t *);
+
+vlc_module_begin ()
+    set_shortname ("HTCPCP")
+    set_description (N_("Coffee pot control"))
+    set_capability ("access", 0)
+    set_category (CAT_INPUT)
+    set_subcategory (SUBCAT_INPUT_ACCESS)
+    add_shortcut ("koffie", "q%C3%A6hv%C3%A6", "%D9%82%D9%87%D9%88%D8%A9",
+                  "akeita", "koffee", "kahva", "kafe", "caf%C3%E8",
+                  "%E5%92%96%E5%95%A1", "kava", "k%C3%A1va", "kaffe", "coffee",
+                  "kafo", "kohv", "kahvi", "%4Baffee"/*,
+                  "%CE%BA%CE%B1%CF%86%CE%AD",
+                  "%E0%A4%95%E0%A5%8C%E0%A4%AB%E0%A5%80",
+                  "%E3%82%B3%E3%83%BC%E3%83%92%E3%83%BC",
+                  "%EC%BB%A4%ED%94%BC", "%D0%BA%D0%BE%D1%84%D0%B5",
+                  "%E0%B8%81%E0%B8%B2%E0%B9%81%E0%B8%9F"*/)
+    set_callbacks (Open, Close)
+vlc_module_end ()
+
+static ssize_t Read( access_t *, uint8_t *, size_t );
+static int Seek( access_t *, uint64_t );
+static int Control( access_t *, int, va_list );
+
+struct access_sys_t
+{
+    int fd;
+};
+
+static int Open (vlc_object_t *obj)
+{
+    access_t *access = (access_t *)obj;
+
+    vlc_url_t url;
+    vlc_UrlParse (&url, access->psz_location, 0);
+
+    int fd = net_ConnectTCP (obj, url.psz_host,
+                             url.i_port ? url.i_port : IPPORT_HTCPCP);
+    if (fd == -1)
+    {
+        vlc_UrlClean (&url);
+        return VLC_EGENERIC;
+    }
+
+    access_sys_t *sys = malloc (sizeof (*sys));
+    if (unlikely(sys == NULL))
+        goto error;
+
+    sys->fd = fd;
+    net_Printf (obj, fd, NULL, "BREW %s HTTP/1.1\r\n",
+                url.psz_path ? url.psz_path : "/");
+    if (url.i_port)
+        net_Printf (obj, fd, NULL, "Host: %s:%u\r\n",
+                    url.psz_host, url.i_port);
+    else
+        net_Printf (obj, fd, NULL, "Host: %s\r\n", url.psz_host);
+    net_Printf (obj, fd, NULL,
+                "User-Agent: "PACKAGE_NAME"/"PACKAGE_VERSION"\r\n"
+                "Accept-Additions: \r\n"
+                "Content-Type: application/coffee-pot-command\r\n"
+                "Content-Length: 0\r\n"
+                "\r\n");
+    vlc_UrlClean (&url);
+
+    access->p_sys = sys;
+    access->pf_read = Read;
+    access->pf_seek = Seek;
+    access->pf_control = Control;
+    return VLC_SUCCESS;
+
+error:
+    net_Close (fd);
+    free (sys);
+    vlc_UrlClean (&url);
+    return VLC_EGENERIC;
+}
+
+static void Close (vlc_object_t *obj)
+{
+    access_t *access = (access_t *)obj;
+    access_sys_t *sys = access->p_sys;
+
+    net_Close (sys->fd);
+    free (sys);
+}
+
+static ssize_t Read (access_t *access, uint8_t *buf, size_t len)
+{
+    access_sys_t *sys = access->p_sys;
+
+    char *resp = net_Gets (access, sys->fd, NULL);
+    if (resp == NULL)
+        goto error;
+
+    unsigned code;
+    if (sscanf (resp, "HTTP/%*u.%*u %u", &code) != 1)
+    {
+        msg_Err (access, "cannot parse response frmo coffee server");
+        goto error;
+    }
+    if ((code / 100) != 2)
+    {
+        msg_Err (access, "server error %u", code);
+        dialog_FatalWait (access, N_("Coffee pot"),
+            N_("The pot failed to brew coffee (server error %u)."), code);
+        goto error;
+    }
+
+    (void) buf; (void) len;
+    dialog_FatalWait (access, N_("Coffee pot"), N_("Coffee is ready."));
+error:
+    access->info.b_eof = true;
+    return 0;
+}
+
+static int Seek (access_t *access, uint64_t pos)
+{
+    (void) access; (void) pos;
+    return VLC_EGENERIC;
+}
+
+static int Control (access_t *access, int query, va_list args)
+{
+    (void) access;
+
+    switch (query)
+    {
+        case ACCESS_CAN_SEEK:
+        case ACCESS_CAN_FASTSEEK:
+        case ACCESS_CAN_PAUSE:
+        case ACCESS_CAN_CONTROL_PACE:
+            *va_arg (args, bool *) = false;
+            break;
+
+        case ACCESS_GET_PTS_DELAY:
+            *va_arg (args, int64_t *) = DEFAULT_PTS_DELAY * INT64_C(1000);
+            break;
+
+        default:
+            return VLC_EGENERIC;
+
+    }
+    return VLC_SUCCESS;
+}