0303944d0c
After page loading has finished the number of free bytes left for page attributes is logged. It turns out that "usual" pages tend to get along with ~800 bytes while i.e. the Google search pages use all of the 2000 bytes of page attribute memory allocated by default (because of the long URLs with many parameters). So it seems that reducing this default isn't exactly the best way to reduce memory consumption...
1014 lines
29 KiB
C
1014 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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/* 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) - 4, 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);
|
|
#endif /* CTK_CONF_WINDOWS */
|
|
#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)
|
|
{
|
|
char *wptr;
|
|
|
|
if(++newlines > 2) {
|
|
return;
|
|
}
|
|
|
|
if(pagey < firsty) {
|
|
++pagey;
|
|
x = 0;
|
|
return;
|
|
}
|
|
|
|
if(!loading) {
|
|
return;
|
|
}
|
|
|
|
webpageptr += (WWW_CONF_WEBPAGE_WIDTH - x);
|
|
++y;
|
|
x = 0;
|
|
|
|
wptr = webpageptr - WWW_CONF_WEBPAGE_WIDTH;
|
|
petsciiconv_topetscii(wptr, WWW_CONF_WEBPAGE_WIDTH);
|
|
|
|
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 */
|
|
|
|
show_url();
|
|
open_url();
|
|
start_loading();
|
|
}
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#endif /* WWW_CONF_FORMS */
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|
/*-----------------------------------------------------------------------------------*/
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