| /* |
| * Copyright (c) 2002, Adam Dunkels. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * 3. The name of the author may not be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * This file is part of the Contiki desktop environment |
| * |
| * $Id: wget.c,v 1.3 2005/04/24 13:37:06 oliverschmidt Exp $ |
| * |
| */ |
| |
| |
| #include "ctk.h" |
| #include "ek.h" |
| #include "webclient.h" |
| #include "resolv.h" |
| #include "uiplib.h" |
| #include "loader.h" |
| #include "cfs.h" |
| |
| #include "contiki.h" |
| |
| #include "program-handler.h" |
| |
| #include <string.h> |
| #include <stdio.h> |
| #include <dio.h> |
| |
| |
| static struct ctk_window window; |
| |
| static struct ctk_label urllabel = |
| {CTK_LABEL(0, 1, 4, 1, "URL:")}; |
| static char url[80]; |
| static char urledit[80]; |
| struct ctk_textentry urltextentry = |
| {CTK_TEXTENTRY(5, 1, 30, 1, urledit, 78)}; |
| |
| static struct ctk_label savefilenamelabel = |
| {CTK_LABEL(0, 3, 14, 1, "Save filename:")}; |
| static char savefilename[40]; |
| static struct ctk_textentry savefilenametextentry = |
| {CTK_TEXTENTRY(15, 3, 20, 1, savefilename, 38)}; |
| |
| static struct ctk_button filebutton = |
| {CTK_BUTTON(0, 5, 16, "Download to file")}; |
| |
| static struct ctk_button dskbutton = |
| {CTK_BUTTON(19, 5, 16, "Download to disk")}; |
| |
| static struct ctk_label statustext = |
| {CTK_LABEL(0, 7, 37, 1, "")}; |
| static char statusmsg[40]; |
| |
| static struct ctk_window dskdialog; |
| static struct ctk_label overwritelabel = |
| {CTK_LABEL(0, 1, 36, 1, "This will overwrite the entire disk!")}; |
| static struct ctk_label makesurelabel1 = |
| {CTK_LABEL(7, 3, 22, 1, "Make sure you have the")}; |
| static struct ctk_label makesurelabel2 = |
| {CTK_LABEL(4, 4, 28, 1, "right disk in slot 6 drive 1")}; |
| static struct ctk_button overwritebutton = |
| {CTK_BUTTON(2, 6, 14, "Overwrite disk")}; |
| static struct ctk_button cancelbutton = |
| {CTK_BUTTON(26, 6, 6, "Cancel")}; |
| |
| EK_EVENTHANDLER(wget_eventhandler, ev, data); |
| EK_PROCESS(p, "Web downloader", EK_PRIO_NORMAL, |
| wget_eventhandler, NULL, NULL); |
| static ek_id_t id = EK_ID_NONE; |
| |
| /* State */ |
| |
| #define DLOAD_NONE 0 |
| #define DLOAD_FILE 1 |
| #define DLOAD_DSK 2 |
| static u8_t dload_state; |
| static unsigned long dload_bytes; |
| |
| static int savefile; |
| static void* savedsk; |
| |
| static char buffer[16][256]; |
| static u16_t bufferptr; |
| static u8_t relsector; |
| static u16_t absblock; |
| |
| /*-----------------------------------------------------------------------------------*/ |
| /* wget_init(); |
| * |
| * Initializes and starts the web browser. Called either at startup or |
| * to open the browser window. |
| */ |
| LOADER_INIT_FUNC(wget_init, arg) |
| { |
| if(arg != NULL) { |
| strncpy(url, arg, sizeof(url)); |
| strncpy(urledit, arg, sizeof(urledit)); |
| } else { |
| #ifdef WGET_CONF_URL |
| strncpy(url, WGET_CONF_URL, sizeof(url)); |
| strncpy(urledit, WGET_CONF_URL, sizeof(urledit)); |
| #endif /* WGET_CONF_URL */ |
| } |
| arg_free(arg); |
| |
| if(id == EK_ID_NONE) { |
| id = ek_start(&p); |
| |
| } |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| static void |
| show_statustext(char *text) |
| { |
| ctk_label_set_text(&statustext, text); |
| CTK_WIDGET_REDRAW(&statustext); |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| static void |
| dload_close(char *text) |
| { |
| show_statustext(text); |
| if(dload_state == DLOAD_FILE) { |
| cfs_close(savefile); |
| } else if(dload_state == DLOAD_DSK) { |
| dio_close(savedsk); |
| } |
| dload_state = DLOAD_NONE; |
| webclient_close(); |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| /* open_url(): |
| * |
| * Called when the URL present in the global "url" variable should be |
| * opened. It will call the hostname resolver as well as the HTTP |
| * client requester. |
| */ |
| static void |
| start_get(void) |
| { |
| u16_t addr[2]; |
| unsigned char i; |
| static char host[32]; |
| char *file; |
| register char *urlptr; |
| |
| /* Trim off any spaces in the end of the url. */ |
| urlptr = url + strlen(url) - 1; |
| while(*urlptr == ' ' && urlptr > url) { |
| *urlptr = 0; |
| --urlptr; |
| } |
| |
| /* Don't even try to go further if the URL is empty. */ |
| if(urlptr == url) { |
| return; |
| } |
| |
| /* See if the URL starts with http://, otherwise prepend it. */ |
| if(strncmp(url, http_http, 7) != 0) { |
| while(urlptr >= url) { |
| *(urlptr + 7) = *urlptr; |
| --urlptr; |
| } |
| strncpy(url, http_http, 7); |
| } |
| |
| /* Find host part of the URL. */ |
| urlptr = &url[7]; |
| for(i = 0; i < sizeof(host); ++i) { |
| if(*urlptr == 0 || |
| *urlptr == '/' || |
| *urlptr == ' ' || |
| *urlptr == ':') { |
| host[i] = 0; |
| break; |
| } |
| host[i] = *urlptr; |
| ++urlptr; |
| } |
| |
| /* XXX: Here we should find the port part of the URL, but this isn't |
| currently done because of laziness from the programmer's side |
| :-) */ |
| |
| /* Find file part of the URL. */ |
| while(*urlptr != '/' && *urlptr != 0) { |
| ++urlptr; |
| } |
| if(*urlptr == '/') { |
| file = urlptr; |
| } else { |
| file = "/"; |
| } |
| |
| /* First check if the host is an IP address. */ |
| if(uiplib_ipaddrconv(host, (unsigned char *)addr) == 0) { |
| |
| /* Try to lookup the hostname. If it fails, we initiate a hostname |
| lookup and print out an informative message on the |
| statusbar. */ |
| if(resolv_lookup(host) == NULL) { |
| resolv_query(host); |
| show_statustext("Resolving host..."); |
| return; |
| } |
| } |
| |
| /* The hostname we present in the hostname table, so we send out the |
| initial GET request. */ |
| if(webclient_get(host, 80, file) == 0) { |
| show_statustext("Out of memory error."); |
| } else { |
| show_statustext("Connecting..."); |
| } |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| EK_EVENTHANDLER(wget_eventhandler, ev, data) |
| { |
| EK_EVENTHANDLER_ARGS(ev, data); |
| |
| if(ev == EK_EVENT_INIT) { |
| /* Create the main window. */ |
| ctk_window_new(&window, 37, 8, "Web downloader"); |
| |
| CTK_WIDGET_ADD(&window, &urllabel); |
| CTK_WIDGET_ADD(&window, &urltextentry); |
| CTK_WIDGET_ADD(&window, &savefilenamelabel); |
| CTK_WIDGET_ADD(&window, &savefilenametextentry); |
| CTK_WIDGET_ADD(&window, &filebutton); |
| CTK_WIDGET_ADD(&window, &dskbutton); |
| CTK_WIDGET_ADD(&window, &statustext); |
| |
| CTK_WIDGET_FOCUS(&window, &urltextentry); |
| |
| dload_state = DLOAD_NONE; |
| |
| memset(savefilename, 0, sizeof(savefilename)); |
| memset(url, 0, sizeof(url)); |
| |
| ctk_dialog_new(&dskdialog, 36, 8); |
| CTK_WIDGET_ADD(&dskdialog, &overwritelabel); |
| CTK_WIDGET_ADD(&dskdialog, &makesurelabel1); |
| CTK_WIDGET_ADD(&dskdialog, &makesurelabel2); |
| CTK_WIDGET_ADD(&dskdialog, &overwritebutton); |
| CTK_WIDGET_ADD(&dskdialog, &cancelbutton); |
| |
| CTK_WIDGET_FOCUS(&dskdialog, &cancelbutton); |
| |
| ctk_window_open(&window); |
| } else if(ev == tcpip_event) { |
| webclient_appcall(data); |
| } else if(ev == ctk_signal_button_activate) { |
| if(data == (void *)&filebutton) { |
| dload_close(""); |
| savefile = cfs_open(savefilename, CFS_WRITE); |
| if(savefile == -1) { |
| sprintf(statusmsg, "Open error with '%s'", savefilename); |
| show_statustext(statusmsg); |
| } else { |
| strncpy(url, urledit, sizeof(url)); |
| start_get(); |
| dload_bytes = 0; |
| dload_state = DLOAD_FILE; |
| } |
| } else if(data == (void *)&dskbutton) { |
| ctk_dialog_open(&dskdialog); |
| } else if(data == (void *)&cancelbutton) { |
| ctk_dialog_close(); |
| } else if(data == (void *)&overwritebutton) { |
| ctk_dialog_close(); |
| dload_close(""); |
| savedsk = dio_open(/*slot*/6 * 2 + /*drive*/1 - 1); |
| if(savedsk == NULL) { |
| sprintf(statusmsg, "Access error with slot 6 drive 1"); |
| show_statustext(statusmsg); |
| } else { |
| strncpy(url, urledit, sizeof(url)); |
| start_get(); |
| dload_bytes = 0; |
| dload_state = DLOAD_DSK; |
| bufferptr = 0; |
| relsector = 0; |
| absblock = 0; |
| } |
| } |
| } else if(ev == ctk_signal_hyperlink_activate) { |
| if(dload_state == DLOAD_NONE) { |
| /* open_link(w->widget.hyperlink.url);*/ |
| strncpy(urledit, |
| ((struct ctk_widget *)data)->widget.hyperlink.url, sizeof(urledit)); |
| CTK_WIDGET_REDRAW(&urltextentry); |
| CTK_WIDGET_FOCUS(&window, &urltextentry); |
| } |
| } else if(ev == resolv_event_found) { |
| /* Either found a hostname, or not. */ |
| if((char *)data != NULL && |
| resolv_lookup((char *)data) != NULL) { |
| start_get(); |
| } else { |
| show_statustext("Host not found."); |
| } |
| } else if(ev == ctk_signal_window_close) { |
| dload_close(""); |
| ek_exit(); |
| id = EK_ID_NONE; |
| LOADER_UNLOAD(); |
| } |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| /* 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) |
| { |
| dload_close("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) |
| { |
| if(dload_state == DLOAD_NONE) { |
| return; |
| } |
| show_statustext("Done."); |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| /* webclient_closed(): |
| * |
| * Callback function. Called from the webclient when the HTTP |
| * connection is connected. |
| */ |
| void |
| webclient_connected(void) |
| { |
| show_statustext("Request sent..."); |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| static unsigned char |
| write_buffer(void) |
| { |
| u8_t sector; |
| |
| for(sector = 0; sector < 16; sector += 2) { |
| if(dio_write(savedsk, absblock++, buffer[sector]) != 0) { |
| return 0; |
| } |
| } |
| return 1; |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| static unsigned char |
| handle_dsk_data(char *data, u16_t len) |
| { |
| static u8_t skew[16] = {0x0, 0xE, 0xD, 0xC, 0xB, 0xA, 0x9, 0x8, |
| 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0xF}; |
| u16_t bufferlen; |
| |
| while(len > 0) { |
| bufferlen = sizeof(buffer[0]) - bufferptr; |
| if(len < bufferlen) { |
| bufferlen = len; |
| } |
| |
| memcpy(&buffer[skew[relsector]][bufferptr], data, bufferlen); |
| |
| data += bufferlen; |
| bufferptr += bufferlen; |
| len -= bufferlen; |
| |
| if(bufferptr == sizeof(buffer[0])) { |
| bufferptr = 0; |
| if(++relsector == 16) { |
| relsector = 0; |
| if(write_buffer() == 0) { |
| return 0; |
| } |
| } |
| } |
| } |
| return 1; |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| /* webclient_datahandler(): |
| * |
| * Callback function. Called from the webclient module when HTTP data |
| * has arrived. |
| */ |
| void |
| webclient_datahandler(char *data, u16_t len) |
| { |
| int ret; |
| |
| if(len > 0) { |
| dload_bytes += len; |
| sprintf(statusmsg, "Downloading (%lu bytes)", dload_bytes); |
| show_statustext(statusmsg); |
| if(dload_state == DLOAD_DSK) { |
| if(handle_dsk_data(data, len) == 0) { |
| dload_close("Write error with slot 6 drive 1"); |
| } |
| } else if(dload_state == DLOAD_FILE) { |
| ret = cfs_write(savefile, data, len); |
| if(ret != len) { |
| sprintf(statusmsg, "Wrote only %d bytes", ret); |
| dload_close(statusmsg); |
| } |
| } |
| } |
| |
| if(data == NULL) { |
| sprintf(statusmsg, "Finished downloading %lu bytes", dload_bytes); |
| dload_close(statusmsg); |
| } |
| } |
| /*-----------------------------------------------------------------------------------*/ |