1021 lines
29 KiB
C
1021 lines
29 KiB
C
/*
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* Copyright (c) 2002, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki desktop environment
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*
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*
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*/
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#include <string.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include "ctk/ctk.h"
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#include "ctk/ctk-textentry-cmdline.h"
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#include "contiki-net.h"
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#include "lib/petsciiconv.h"
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#include "sys/arg.h"
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#include "sys/log.h"
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#if WWW_CONF_WITH_WGET
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#include "program-handler.h"
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#endif /* WWW_CONF_WITH_WGET */
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#include "webclient.h"
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#include "htmlparser.h"
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#include "http-strings.h"
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#include "www.h"
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/* Explicitly declare itoa as it is non-standard and not necessarily in stdlib.h */
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char *itoa(int value, char *str, int base);
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/* The array that holds the current URL. */
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static char url[WWW_CONF_MAX_URLLEN + 1];
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/* The array that holds the web page text. */
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static char webpage[WWW_CONF_WEBPAGE_WIDTH *
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WWW_CONF_WEBPAGE_HEIGHT + 1];
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/* The CTK widgets for the main window. */
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static struct ctk_window mainwindow;
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#if WWW_CONF_HISTORY_SIZE > 0
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static struct ctk_button backbutton =
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{CTK_BUTTON(0, 0, 4, "Back")};
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static struct ctk_button downbutton =
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{CTK_BUTTON(10, 0, 4, "Down")};
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#else /* WWW_CONF_HISTORY_SIZE > 0 */
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static struct ctk_button downbutton =
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{CTK_BUTTON(0, 0, 4, "Down")};
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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static struct ctk_button stopbutton =
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{CTK_BUTTON(WWW_CONF_WEBPAGE_WIDTH - 16, 0, 4, "Stop")};
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static struct ctk_button gobutton =
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{CTK_BUTTON(WWW_CONF_WEBPAGE_WIDTH - 4, 0, 2, "Go")};
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static struct ctk_separator sep1 =
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{CTK_SEPARATOR(0, 2, WWW_CONF_WEBPAGE_WIDTH)};
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static char editurl[WWW_CONF_MAX_URLLEN + 1];
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static struct ctk_textentry urlentry =
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{CTK_TEXTENTRY(0, 1, WWW_CONF_WEBPAGE_WIDTH - 2,
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1, editurl, WWW_CONF_MAX_URLLEN)};
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static struct ctk_label webpagelabel =
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{CTK_LABEL(0, 3, WWW_CONF_WEBPAGE_WIDTH,
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WWW_CONF_WEBPAGE_HEIGHT, webpage)};
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static char statustexturl[WWW_CONF_WEBPAGE_WIDTH];
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static struct ctk_label statustext =
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{CTK_LABEL(0, WWW_CONF_WEBPAGE_HEIGHT + 4,
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WWW_CONF_WEBPAGE_WIDTH, 1, "")};
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static struct ctk_separator sep2 =
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{CTK_SEPARATOR(0, WWW_CONF_WEBPAGE_HEIGHT + 3,
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WWW_CONF_WEBPAGE_WIDTH)};
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#if WWW_CONF_WITH_WGET || defined(WWW_CONF_WGET_EXEC)
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#if CTK_CONF_WINDOWS
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static struct ctk_window wgetdialog;
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static struct ctk_label wgetlabel1 =
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{CTK_LABEL(1, 1, 34, 1, "This web page cannot be displayed.")};
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static struct ctk_label wgetlabel2 =
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{CTK_LABEL(1, 3, 35, 1, "Would you like to download instead?")};
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static struct ctk_button wgetnobutton =
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{CTK_BUTTON(1, 5, 6, "Cancel")};
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static struct ctk_button wgetyesbutton =
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{CTK_BUTTON(11, 5, 24, "Close browser & download")};
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#else /* CTK_CONF_WINDOWS */
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static struct ctk_button wgetnobutton =
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{CTK_BUTTON((WWW_CONF_WEBPAGE_WIDTH - 38) / 2 + 1,
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11, 6, "Cancel")};
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static struct ctk_button wgetyesbutton =
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{CTK_BUTTON((WWW_CONF_WEBPAGE_WIDTH - 38) / 2 + 11,
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11, 24, "Close browser & download")};
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#endif /* CTK_CONF_WINDOWS */
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#endif /* WWW_CONF_WITH_WGET || WWW_CONF_WGET_EXEC */
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#if WWW_CONF_HISTORY_SIZE > 0
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/* The char arrays that hold the history of visited URLs. */
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static char history[WWW_CONF_HISTORY_SIZE][WWW_CONF_MAX_URLLEN];
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static unsigned char history_last;
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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struct linkattrib {
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struct ctk_hyperlink hyperlink;
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char url[1];
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};
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struct inputattrib;
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struct formattrib {
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struct inputattrib *nextptr;
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char action[1];
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};
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struct inputattrib {
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struct inputattrib *nextptr;
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struct formattrib *formptr;
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struct ctk_widget widget;
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};
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struct textattrib {
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struct inputattrib *nextptr;
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struct formattrib *formptr;
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struct ctk_textentry textentry;
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char name[1];
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};
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struct submitattrib {
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struct inputattrib *nextptr;
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struct formattrib *formptr;
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struct ctk_button button;
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char name[1];
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};
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static char pageattribs[WWW_CONF_PAGEATTRIB_SIZE];
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static char *pageattribptr;
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#if WWW_CONF_FORMS
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static struct formattrib *formptr;
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static struct inputattrib *currptr;
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#endif /* WWW_CONF_FORMS */
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#define ISO_nl 0x0a
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#define ISO_space 0x20
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#define ISO_hash 0x23
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#define ISO_ampersand 0x26
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#define ISO_plus 0x2b
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#define ISO_slash 0x2f
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#define ISO_eq 0x3d
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#define ISO_questionmark 0x3f
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/* The state of the rendering code. */
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static char *webpageptr;
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static unsigned char x, y;
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static unsigned char loading;
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static unsigned short firsty, pagey;
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static unsigned char newlines;
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static unsigned char count;
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static char receivingmsgs[4][23] = {
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"Receiving web page ...",
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"Receiving web page. ..",
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"Receiving web page.. .",
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"Receiving web page... "
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};
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PROCESS(www_process, "Web browser");
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AUTOSTART_PROCESSES(&www_process);
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static void formsubmit(struct inputattrib *trigger);
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/*-----------------------------------------------------------------------------------*/
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/* make_window()
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*
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* Creates the web browser's window.
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*/
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static void
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make_window(void)
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{
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#if WWW_CONF_HISTORY_SIZE > 0
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CTK_WIDGET_ADD(&mainwindow, &backbutton);
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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CTK_WIDGET_ADD(&mainwindow, &downbutton);
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CTK_WIDGET_ADD(&mainwindow, &stopbutton);
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CTK_WIDGET_ADD(&mainwindow, &gobutton);
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CTK_WIDGET_ADD(&mainwindow, &urlentry);
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CTK_WIDGET_ADD(&mainwindow, &sep1);
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CTK_WIDGET_ADD(&mainwindow, &webpagelabel);
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CTK_WIDGET_SET_FLAG(&webpagelabel, CTK_WIDGET_FLAG_MONOSPACE);
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CTK_WIDGET_ADD(&mainwindow, &sep2);
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CTK_WIDGET_ADD(&mainwindow, &statustext);
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pageattribptr = pageattribs;
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}
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/*-----------------------------------------------------------------------------------*/
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/* redraw_window():
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*
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* Convenience function that calls upon CTK to redraw the browser
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* window. */
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static void
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redraw_window(void)
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{
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ctk_window_redraw(&mainwindow);
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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add_pageattrib(unsigned size)
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{
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char *ptr;
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if(pageattribptr + size > pageattribs + sizeof(pageattribs)) {
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return NULL;
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}
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ptr = pageattribptr;
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pageattribptr += size;
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return ptr;
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}
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/*-----------------------------------------------------------------------------------*/
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#if WWW_CONF_FORMS
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static void
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add_forminput(struct inputattrib *inputptr)
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{
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inputptr->nextptr = NULL;
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currptr->nextptr = inputptr;
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currptr = inputptr;
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}
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#endif /* WWW_CONF_FORMS */
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/*-----------------------------------------------------------------------------------*/
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static void
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clear_page(void)
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{
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ctk_window_clear(&mainwindow);
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make_window();
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memset(webpage, 0, WWW_CONF_WEBPAGE_WIDTH * WWW_CONF_WEBPAGE_HEIGHT);
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redraw_window();
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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show_url(void)
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{
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memcpy(editurl, url, WWW_CONF_MAX_URLLEN);
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strncpy(editurl, "http://", 7);
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petsciiconv_topetscii(editurl + 7, WWW_CONF_MAX_URLLEN - 7);
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CTK_WIDGET_REDRAW(&urlentry);
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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start_loading(void)
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{
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loading = 1;
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x = y = 0;
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pagey = 0;
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newlines = 0;
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webpageptr = webpage;
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clear_page();
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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show_statustext(char *text)
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{
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ctk_label_set_text(&statustext, text);
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CTK_WIDGET_REDRAW(&statustext);
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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end_page(char *status, void *focus)
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{
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show_statustext(status);
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petsciiconv_topetscii(webpageptr - x, x);
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CTK_WIDGET_FOCUS(&mainwindow, focus);
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redraw_window();
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log_message("Page attribs free: ", itoa(pageattribs + sizeof(pageattribs) - pageattribptr,
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pageattribs + sizeof(pageattribs) - 5, 10));
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}
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/*-----------------------------------------------------------------------------------*/
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/* open_url():
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*
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* Called when the URL present in the global "url" variable should be
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* opened. It will call the hostname resolver as well as the HTTP
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* client requester.
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*/
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static void
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open_url(void)
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{
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unsigned char i;
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static char host[32];
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char *file;
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register char *urlptr;
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static uip_ipaddr_t addr;
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/* Trim off any spaces in the end of the url. */
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urlptr = url + strlen(url);
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while(urlptr > url) {
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if(*(urlptr - 1) == ' ') {
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*--urlptr = 0;
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} else {
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break;
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}
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}
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/* Don't even try to go further if the URL is empty. */
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if(urlptr == url) {
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return;
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}
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/* See if the URL starts with http://, otherwise prepend it. */
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if(strncmp(url, http_http, 7) != 0) {
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while(urlptr >= url) {
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*(urlptr + 7) = *urlptr;
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--urlptr;
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}
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strncpy(url, http_http, 7);
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}
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/* Find host part of the URL. */
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urlptr = &url[7];
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for(i = 0; i < sizeof(host); ++i) {
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if(*urlptr == 0 ||
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*urlptr == '/' ||
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*urlptr == ' ' ||
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*urlptr == ':') {
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host[i] = 0;
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break;
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}
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host[i] = *urlptr;
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++urlptr;
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}
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/* XXX: Here we should find the port part of the URL, but this isn't
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currently done because of laziness from the programmer's side
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:-) */
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/* Find file part of the URL. */
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while(*urlptr != '/' && *urlptr != 0) {
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++urlptr;
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}
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if(*urlptr == '/') {
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file = urlptr;
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} else {
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file = "/";
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}
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#if UIP_UDP
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/* Try to lookup the hostname. If it fails, we initiate a hostname
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lookup and print out an informative message on the statusbar. */
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if(uiplib_ipaddrconv(host, &addr) == 0) {
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uip_ipaddr_t *addrptr;
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if(resolv_lookup(host, &addrptr) != RESOLV_STATUS_CACHED) {
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resolv_query(host);
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show_statustext("Resolving host...");
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return;
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}
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uip_ipaddr_copy(&addr, addrptr);
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}
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#else /* UIP_UDP */
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uiplib_ipaddrconv(host, &addr);
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#endif /* UIP_UDP */
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/* The hostname we present in the hostname table, so we send out the
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initial GET request. */
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if(webclient_get(host, 80, file) == 0) {
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show_statustext("Out of memory error");
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} else {
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show_statustext("Connecting...");
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}
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}
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/*-----------------------------------------------------------------------------------*/
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/* set_link(link):
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*
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* Will format a link from the current web pages so that it suits the
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* open_url() function.
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*/
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static void
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set_link(char *link)
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{
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register char *urlptr;
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if(strncmp(link, http_http, 7) == 0) {
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/* The link starts with http://. We just copy the contents of the
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link into the url string and jump away. */
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strncpy(url, link, WWW_CONF_MAX_URLLEN);
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} else if(*link == ISO_slash &&
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*(link + 1) == ISO_slash) {
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/* The link starts with //, so we'll copy it into the url
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variable, starting after the http (which already is present in
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the url variable since we were able to open the web page on
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which this link was found in the first place). */
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strncpy(&url[5], link, WWW_CONF_MAX_URLLEN);
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} else if(*link == ISO_slash) {
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/* The link starts with a slash, so it is a non-relative link
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within the same web site. We find the start of the filename of
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the current URL and paste the contents of this link there, and
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head off to the new URL. */
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for(urlptr = &url[7];
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*urlptr != 0 && *urlptr != ISO_slash;
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++urlptr);
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strncpy(urlptr, link, WWW_CONF_MAX_URLLEN - (urlptr - url));
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} else {
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/* A fully relative link is found. We find the last slash in the
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current URL and paste the link there. */
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/* XXX: we should really parse any ../ in the link as well. */
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for(urlptr = url + strlen(url);
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urlptr != url && *urlptr != ISO_slash;
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--urlptr);
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++urlptr;
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strncpy(urlptr, link, WWW_CONF_MAX_URLLEN - (urlptr - url));
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}
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}
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/*-----------------------------------------------------------------------------------*/
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#if WWW_CONF_HISTORY_SIZE > 0
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/* log_back():
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*
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* Copies the current URL from the url variable and into the log for
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* the back button.
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*/
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static void
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log_back(void)
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{
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if(strncmp(url, history[(int)history_last], WWW_CONF_MAX_URLLEN) != 0) {
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memcpy(history[(int)history_last], url, WWW_CONF_MAX_URLLEN);
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++history_last;
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if(history_last >= WWW_CONF_HISTORY_SIZE) {
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history_last = 0;
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}
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}
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}
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#endif /* WWW_CONF_HISTORY_SIZE > 0 */
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/*-----------------------------------------------------------------------------------*/
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static void
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quit(void)
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{
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ctk_window_close(&mainwindow);
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process_exit(&www_process);
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LOADER_UNLOAD();
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}
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/*-----------------------------------------------------------------------------------*/
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/* www_process():
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*
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* The program's signal dispatcher function. Is called whenever a signal arrives.
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*/
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PROCESS_THREAD(www_process, ev, data)
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{
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static struct ctk_widget *w;
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#if WWW_CONF_WITH_WGET
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static char *argptr;
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#endif /* WWW_CONF_WITH_WGET */
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w = (struct ctk_widget *)data;
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PROCESS_BEGIN();
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/* Create the main window. */
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memset(webpage, 0, sizeof(webpage));
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ctk_window_new(&mainwindow, WWW_CONF_WEBPAGE_WIDTH,
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WWW_CONF_WEBPAGE_HEIGHT+5, "Web browser");
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make_window();
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#ifdef WWW_CONF_HOMEPAGE
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strncpy(editurl, WWW_CONF_HOMEPAGE, sizeof(editurl));
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#endif /* WWW_CONF_HOMEPAGE */
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CTK_WIDGET_FOCUS(&mainwindow, &urlentry);
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#if WWW_CONF_WITH_WGET || defined(WWW_CONF_WGET_EXEC)
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#if CTK_CONF_WINDOWS
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/* Create download dialog.*/
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ctk_dialog_new(&wgetdialog, 38, 7);
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CTK_WIDGET_ADD(&wgetdialog, &wgetlabel1);
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CTK_WIDGET_ADD(&wgetdialog, &wgetlabel2);
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CTK_WIDGET_ADD(&wgetdialog, &wgetnobutton);
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CTK_WIDGET_ADD(&wgetdialog, &wgetyesbutton);
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#endif /* CTK_CONF_WINDOWS */
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#endif /* WWW_CONF_WITH_WGET || WWW_CONF_WGET_EXEC */
|
|
|
|
ctk_window_open(&mainwindow);
|
|
|
|
while(1) {
|
|
|
|
PROCESS_WAIT_EVENT();
|
|
|
|
if(ev == tcpip_event) {
|
|
webclient_appcall(data);
|
|
} else if(ev == ctk_signal_widget_activate) {
|
|
if(w == (struct ctk_widget *)&gobutton ||
|
|
w == (struct ctk_widget *)&urlentry) {
|
|
start_loading();
|
|
firsty = 0;
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
log_back();
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
|
memcpy(url, editurl, WWW_CONF_MAX_URLLEN);
|
|
petsciiconv_toascii(url, WWW_CONF_MAX_URLLEN);
|
|
open_url();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &gobutton);
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
} else if(w == (struct ctk_widget *)&backbutton) {
|
|
firsty = 0;
|
|
start_loading();
|
|
--history_last;
|
|
/* Note: history_last is unsigned ! */
|
|
if(history_last > WWW_CONF_HISTORY_SIZE) {
|
|
history_last = WWW_CONF_HISTORY_SIZE - 1;
|
|
}
|
|
memcpy(url, history[(int)history_last], WWW_CONF_MAX_URLLEN);
|
|
*history[(int)history_last] = 0;
|
|
open_url();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &backbutton);
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
|
} else if(w == (struct ctk_widget *)&downbutton) {
|
|
firsty = pagey + WWW_CONF_WEBPAGE_HEIGHT - 2;
|
|
start_loading();
|
|
open_url();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &downbutton);
|
|
} else if(w == (struct ctk_widget *)&stopbutton) {
|
|
loading = 0;
|
|
webclient_close();
|
|
#if WWW_CONF_WITH_WGET || defined(WWW_CONF_WGET_EXEC)
|
|
} else if(w == (struct ctk_widget *)&wgetnobutton) {
|
|
#if CTK_CONF_WINDOWS
|
|
ctk_dialog_close();
|
|
#else /* CTK_CONF_WINDOWS */
|
|
clear_page();
|
|
#endif /* CTK_CONF_WINDOWS */
|
|
} else if(w == (struct ctk_widget *)&wgetyesbutton) {
|
|
#if CTK_CONF_WINDOWS
|
|
ctk_dialog_close();
|
|
#else /* CTK_CONF_WINDOWS */
|
|
clear_page();
|
|
#endif /* CTK_CONF_WINDOWS */
|
|
#if WWW_CONF_WITH_WGET
|
|
quit();
|
|
argptr = arg_alloc((char)WWW_CONF_MAX_URLLEN);
|
|
if(argptr != NULL) {
|
|
strncpy(argptr, url, WWW_CONF_MAX_URLLEN);
|
|
}
|
|
program_handler_load("wget.prg", argptr);
|
|
#else /* WWW_CONF_WITH_WGET */
|
|
petsciiconv_topetscii(url, sizeof(url));
|
|
/* Clear screen */
|
|
ctk_restore();
|
|
WWW_CONF_WGET_EXEC(url);
|
|
redraw_window();
|
|
show_statustext("Cannot exec wget");
|
|
#endif /* WWW_CONF_WITH_WGET */
|
|
#endif /* WWW_CONF_WITH_WGET || WWW_CONF_WGET_EXEC */
|
|
#if WWW_CONF_FORMS
|
|
} else {
|
|
/* Assume form widget. */
|
|
formsubmit((struct inputattrib *)
|
|
(((char *)w) - offsetof(struct inputattrib, widget)));
|
|
#endif /* WWW_CONF_FORMS */
|
|
}
|
|
} else if(ev == ctk_signal_hyperlink_activate) {
|
|
firsty = 0;
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
log_back();
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
|
set_link(w->widget.hyperlink.url);
|
|
show_url();
|
|
open_url();
|
|
start_loading();
|
|
CTK_WIDGET_FOCUS(&mainwindow, &stopbutton);
|
|
} else if(ev == ctk_signal_hyperlink_hover) {
|
|
if(CTK_WIDGET_TYPE((struct ctk_widget *)data) == CTK_WIDGET_HYPERLINK) {
|
|
strncpy(statustexturl, w->widget.hyperlink.url,
|
|
sizeof(statustexturl));
|
|
petsciiconv_topetscii(statustexturl, sizeof(statustexturl));
|
|
show_statustext(statustexturl);
|
|
}
|
|
#if UIP_UDP
|
|
} else if(ev == resolv_event_found) {
|
|
/* Either found a hostname, or not. */
|
|
if((char *)data != NULL &&
|
|
resolv_lookup((char *)data, NULL) == RESOLV_STATUS_CACHED) {
|
|
open_url();
|
|
} else {
|
|
show_statustext("Host not found");
|
|
}
|
|
#endif /* UIP_UDP */
|
|
} else if(ev == ctk_signal_window_close ||
|
|
ev == PROCESS_EVENT_EXIT) {
|
|
quit();
|
|
}
|
|
}
|
|
PROCESS_END();
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* set_url():
|
|
*
|
|
* Constructs an URL from the arguments and puts it into the global
|
|
* "url" variable and the visible "editurl" (which is shown in the URL
|
|
* text entry widget in the browser window).
|
|
*/
|
|
static void
|
|
set_url(char *host, uint16_t port, char *file)
|
|
{
|
|
char *urlptr;
|
|
|
|
memset(url, 0, WWW_CONF_MAX_URLLEN);
|
|
|
|
if(strncmp(file, http_http, 7) == 0) {
|
|
strncpy(url, file, sizeof(url));
|
|
} else {
|
|
strncpy(url, http_http, 7);
|
|
urlptr = url + 7;
|
|
strcpy(urlptr, host);
|
|
urlptr += strlen(host);
|
|
strcpy(urlptr, file);
|
|
}
|
|
|
|
show_url();
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_aborted():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection was abruptly aborted.
|
|
*/
|
|
void
|
|
webclient_aborted(void)
|
|
{
|
|
show_statustext("Connection reset by peer");
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_timedout():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection timed out.
|
|
*/
|
|
void
|
|
webclient_timedout(void)
|
|
{
|
|
show_statustext("Connection timed out");
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_closed():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection was closed after a request from the "webclient_close()"
|
|
* function.
|
|
*/
|
|
void
|
|
webclient_closed(void)
|
|
{
|
|
end_page("Stopped", &downbutton);
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_connected():
|
|
*
|
|
* Callback function. Called from the webclient when the HTTP
|
|
* connection is connected.
|
|
*/
|
|
void
|
|
webclient_connected(void)
|
|
{
|
|
start_loading();
|
|
|
|
show_statustext("Request sent...");
|
|
set_url(webclient_hostname(), webclient_port(), webclient_filename());
|
|
|
|
htmlparser_init();
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* webclient_datahandler():
|
|
*
|
|
* Callback function. Called from the webclient module when HTTP data
|
|
* has arrived.
|
|
*/
|
|
void
|
|
webclient_datahandler(char *data, uint16_t len)
|
|
{
|
|
if(len > 0) {
|
|
if(strstr(webclient_mimetype(), http_html + 1) != 0) {
|
|
count = (count + 1) & 3;
|
|
show_statustext(receivingmsgs[count]);
|
|
htmlparser_parse(data, len);
|
|
redraw_window();
|
|
} else {
|
|
uip_abort();
|
|
#if WWW_CONF_WITH_WGET || defined(WWW_CONF_WGET_EXEC)
|
|
#if CTK_CONF_WINDOWS
|
|
ctk_dialog_open(&wgetdialog);
|
|
#else /* CTK_CONF_WINDOWS */
|
|
strcpy(webpage + WWW_CONF_WEBPAGE_WIDTH * 5,
|
|
(80 - WWW_CONF_WEBPAGE_WIDTH) / 2 +
|
|
" This web page cannot be displayed.");
|
|
strcpy(webpage + WWW_CONF_WEBPAGE_WIDTH * 6,
|
|
(80 - WWW_CONF_WEBPAGE_WIDTH) / 2 +
|
|
" Would you like to download instead?");
|
|
CTK_WIDGET_ADD(&mainwindow, &wgetnobutton);
|
|
CTK_WIDGET_ADD(&mainwindow, &wgetyesbutton);
|
|
CTK_WIDGET_FOCUS(&mainwindow, &wgetyesbutton);
|
|
redraw_window();
|
|
#endif /* CTK_CONF_WINDOWS */
|
|
#endif /* WWW_CONF_WITH_WGET || WWW_CONF_WGET_EXEC */
|
|
}
|
|
} else {
|
|
/* Clear remaining parts of page. */
|
|
loading = 0;
|
|
}
|
|
|
|
if(data == NULL) {
|
|
loading = 0;
|
|
end_page("Done", &urlentry);
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void
|
|
add_pagewidget(char *text, unsigned char size, char *attrib, unsigned char type,
|
|
unsigned char border)
|
|
{
|
|
char *wptr;
|
|
static unsigned char maxwidth;
|
|
|
|
newlines = 0;
|
|
|
|
if(!loading) {
|
|
return;
|
|
}
|
|
|
|
maxwidth = size ? WWW_CONF_WEBPAGE_WIDTH - (1 + 2 * border)
|
|
: WWW_CONF_WEBPAGE_WIDTH;
|
|
|
|
/* If the text of the link is too long so that it does not fit into
|
|
the width of the current window, counting from the current x
|
|
coordinate, we first try to jump to the next line. */
|
|
if(size + x > maxwidth) {
|
|
htmlparser_newline();
|
|
if(!loading) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* If the text of the link still is too long, we just chop it off!
|
|
XXX: this is not really the right thing to do, we should probably
|
|
either make a link into a multiline link, or add multiple
|
|
buttons. But this will do for now. */
|
|
if(size > maxwidth) {
|
|
text[maxwidth] = 0;
|
|
size = maxwidth;
|
|
}
|
|
|
|
if(firsty == pagey) {
|
|
unsigned char attriblen = strlen(attrib);
|
|
|
|
wptr = webpageptr;
|
|
/* To save memory, we'll copy the widget text to the web page
|
|
drawing area and reference it from there. */
|
|
wptr[0] = 0;
|
|
wptr += border;
|
|
memcpy(wptr, text, size);
|
|
wptr[size] = 0;
|
|
wptr[size + border] = ' ';
|
|
|
|
switch(type) {
|
|
case CTK_WIDGET_HYPERLINK: {
|
|
struct linkattrib *linkptr =
|
|
(struct linkattrib *)add_pageattrib(sizeof(struct linkattrib) /* incl 1 attrib char */ + attriblen);
|
|
if(linkptr != NULL) {
|
|
CTK_HYPERLINK_NEW(&linkptr->hyperlink, x, y + 3, size, wptr, linkptr->url);
|
|
strcpy(linkptr->url, attrib);
|
|
CTK_WIDGET_SET_FLAG(&linkptr->hyperlink, CTK_WIDGET_FLAG_MONOSPACE);
|
|
CTK_WIDGET_ADD(&mainwindow, &linkptr->hyperlink);
|
|
}
|
|
break;
|
|
}
|
|
#if WWW_CONF_FORMS
|
|
case CTK_WIDGET_BUTTON: {
|
|
struct submitattrib *submitptr =
|
|
(struct submitattrib *)add_pageattrib(sizeof(struct submitattrib) /* incl 1 attrib char */ + attriblen);
|
|
if(submitptr != NULL) {
|
|
CTK_BUTTON_NEW((struct ctk_button *)&submitptr->button, x, y + 3, size, wptr);
|
|
add_forminput((struct inputattrib *)submitptr);
|
|
submitptr->formptr = formptr;
|
|
strcpy(submitptr->name, attrib);
|
|
CTK_WIDGET_SET_FLAG(&submitptr->button, CTK_WIDGET_FLAG_MONOSPACE);
|
|
CTK_WIDGET_ADD(&mainwindow, &submitptr->button);
|
|
}
|
|
break;
|
|
}
|
|
case CTK_WIDGET_TEXTENTRY: {
|
|
struct textattrib *textptr =
|
|
(struct textattrib *)add_pageattrib(sizeof(struct textattrib) /* incl 1 attrib char */ + attriblen
|
|
+ (size ? WWW_CONF_MAX_INPUTVALUELEN : strlen(text)) + 1);
|
|
if(textptr != NULL) {
|
|
CTK_TEXTENTRY_NEW((struct ctk_textentry *)&textptr->textentry, x, y + 3, size, 1,
|
|
textptr->name + attriblen + 1, WWW_CONF_MAX_INPUTVALUELEN);
|
|
add_forminput((struct inputattrib *)textptr);
|
|
textptr->formptr = formptr;
|
|
petsciiconv_topetscii(text, strlen(text));
|
|
strcpy(textptr->textentry.text, text);
|
|
strcpy(textptr->name, attrib);
|
|
if(size) {
|
|
CTK_WIDGET_SET_FLAG(&textptr->textentry, CTK_WIDGET_FLAG_MONOSPACE);
|
|
CTK_WIDGET_ADD(&mainwindow, &textptr->textentry);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
#endif /* WWW_CONF_FORMS */
|
|
}
|
|
}
|
|
/* Increase the x coordinate with the length of the link text plus
|
|
the extra space behind it and the CTK button markers. */
|
|
if(size) {
|
|
size += 1 + 2 * border;
|
|
}
|
|
x += size;
|
|
|
|
if(firsty == pagey) {
|
|
webpageptr += size;
|
|
}
|
|
|
|
if(x == WWW_CONF_WEBPAGE_WIDTH) {
|
|
htmlparser_newline();
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_newline(void)
|
|
{
|
|
#ifdef WITH_PETSCII
|
|
char *wptr;
|
|
#endif /* WITH_PETSCII */
|
|
|
|
if(++newlines > 2) {
|
|
return;
|
|
}
|
|
|
|
if(pagey < firsty) {
|
|
++pagey;
|
|
x = 0;
|
|
return;
|
|
}
|
|
|
|
if(!loading) {
|
|
return;
|
|
}
|
|
|
|
webpageptr += (WWW_CONF_WEBPAGE_WIDTH - x);
|
|
++y;
|
|
x = 0;
|
|
|
|
#ifdef WITH_PETSCII
|
|
wptr = webpageptr - WWW_CONF_WEBPAGE_WIDTH;
|
|
petsciiconv_topetscii(wptr, WWW_CONF_WEBPAGE_WIDTH);
|
|
#endif /* WITH_PETSCII */
|
|
|
|
if(y == WWW_CONF_WEBPAGE_HEIGHT) {
|
|
loading = 0;
|
|
webclient_close();
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_word(char *word, unsigned char wordlen)
|
|
{
|
|
newlines = 0;
|
|
|
|
if(loading) {
|
|
if(wordlen + 1 > WWW_CONF_WEBPAGE_WIDTH - x) {
|
|
htmlparser_newline();
|
|
}
|
|
|
|
if(loading) {
|
|
if(pagey == firsty) {
|
|
memcpy(webpageptr, word, wordlen);
|
|
webpageptr += wordlen;
|
|
*webpageptr = ' ';
|
|
++webpageptr;
|
|
}
|
|
x += wordlen + 1;
|
|
if(x == WWW_CONF_WEBPAGE_WIDTH) {
|
|
htmlparser_newline();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_link(char *text, unsigned char textlen, char *url)
|
|
{
|
|
/* No link for https or fragment-only as we would't be able to handle it anyway. */
|
|
if(url[0] == ISO_hash || strncmp(url, http_https, sizeof(http_https) - 1) == 0) {
|
|
htmlparser_word(text, textlen);
|
|
} else {
|
|
add_pagewidget(text, textlen, url, CTK_WIDGET_HYPERLINK, 0);
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
#if WWW_CONF_FORMS
|
|
void
|
|
htmlparser_form(char *action)
|
|
{
|
|
formptr = (struct formattrib *)add_pageattrib(sizeof(struct formattrib) + strlen(action));
|
|
if(formptr != NULL) {
|
|
formptr->nextptr = NULL;
|
|
currptr = (struct inputattrib *)formptr;
|
|
strcpy(formptr->action, action);
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_submitbutton(char *text, char *name)
|
|
{
|
|
add_pagewidget(text, (unsigned char)strlen(text), name, CTK_WIDGET_BUTTON, 1);
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
htmlparser_inputfield(unsigned char type, unsigned char size, char *text, char *name)
|
|
{
|
|
if(type == HTMLPARSER_INPUTTYPE_HIDDEN) {
|
|
add_pagewidget(text, 0, name, CTK_WIDGET_TEXTENTRY, 0);
|
|
} else {
|
|
add_pagewidget(text, size, name, CTK_WIDGET_TEXTENTRY, 1);
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void
|
|
add_query(char delimiter, char *string)
|
|
{
|
|
static char *query;
|
|
unsigned char length;
|
|
|
|
if(delimiter == ISO_questionmark) {
|
|
query = url + strlen(url);
|
|
}
|
|
|
|
length = strlen(string);
|
|
if(query - url + WWW_CONF_MAX_URLLEN - 1 /* delimiter */ < length) {
|
|
return;
|
|
}
|
|
|
|
*query++ = delimiter;
|
|
strcpy(query, string);
|
|
if(delimiter == ISO_eq) {
|
|
char *space = query;
|
|
|
|
petsciiconv_toascii(query, length);
|
|
while((space = strchr(space, ISO_space)) != NULL) {
|
|
*space = ISO_plus;
|
|
}
|
|
}
|
|
query += length;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void
|
|
formsubmit(struct inputattrib *trigger)
|
|
{
|
|
struct inputattrib *input;
|
|
struct formattrib *form = trigger->formptr;
|
|
char delimiter = ISO_questionmark;
|
|
|
|
set_link(form->action);
|
|
|
|
/* No button pressed so prepare to look for default button. */
|
|
if(trigger->widget.type == CTK_WIDGET_TEXTENTRY) {
|
|
trigger = NULL;
|
|
}
|
|
|
|
for(input = form->nextptr; input != NULL; input = input->nextptr) {
|
|
char *name;
|
|
char *value;
|
|
|
|
if(input->widget.type == CTK_WIDGET_TEXTENTRY) {
|
|
name = ((struct textattrib *)input)->name;
|
|
value = ((struct textattrib *)input)->textentry.text;
|
|
} else {
|
|
/* Consider first button as default button. */
|
|
if(trigger == NULL) {
|
|
trigger = input;
|
|
}
|
|
if(input != trigger) {
|
|
continue;
|
|
}
|
|
name = ((struct submitattrib *)input)->name;
|
|
value = ((struct submitattrib *)input)->button.text;
|
|
}
|
|
|
|
add_query(delimiter, name);
|
|
add_query(ISO_eq, value);
|
|
delimiter = ISO_ampersand;
|
|
}
|
|
|
|
#if WWW_CONF_HISTORY_SIZE > 0
|
|
log_back();
|
|
#endif /* WWW_CONF_HISTORY_SIZE > 0 */
|
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show_url();
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open_url();
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start_loading();
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}
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#endif /* WWW_CONF_FORMS */
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/*-----------------------------------------------------------------------------------*/
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