diff --git a/apps/shell/shell-wget.c b/apps/shell/shell-wget.c new file mode 100644 index 000000000..c25f8a22d --- /dev/null +++ b/apps/shell/shell-wget.c @@ -0,0 +1,214 @@ +/* + * Copyright (c) 2008, Swedish Institute of Computer Science. + * 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. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 operating system. + * + * $Id: shell-wget.c,v 1.1 2008/11/09 12:36:23 adamdunkels Exp $ + */ + +/** + * \file + * Wget Contiki shell command + * \author + * Adam Dunkels + */ + +#include "contiki.h" +#include "shell.h" +#include "dev/leds.h" +#include "dev/watchdog.h" + +#include "webclient.h" + +#include +#include + +#define MAX_URLLEN 128 +static char url[MAX_URLLEN]; + +static uint8_t running; + +/*---------------------------------------------------------------------------*/ +PROCESS(shell_wget_process, "wget"); +SHELL_COMMAND(wget_command, + "wget", + "wget [URL]: download a file with HTTP", + &shell_wget_process); +/*---------------------------------------------------------------------------*/ +static void +open_url(char *url) +{ + unsigned char i; + static char host[32]; + char *file; + register char *urlptr; + static u16_t addr[2]; + + /* 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 = "/"; + } + + /* Try to lookup the hostname. If it fails, we initiate a hostname + lookup and print out an informative message on the statusbar. */ + if(uiplib_ipaddrconv(host, (unsigned char *)addr) == 0) { + shell_output_str(&wget_command, "Not an IP address", ""); + if(resolv_lookup(host) == NULL) { + shell_output_str(&wget_command, "Not resolved", ""); + resolv_query(host); + return; + } + } + + /* The hostname we present in the hostname table, so we send out the + initial GET request. */ + shell_output_str(&wget_command, "Host ", host); + shell_output_str(&wget_command, "File ", file); + + if(webclient_get(host, 80, file) == 0) { + shell_output_str(&wget_command, "Out of memory", ""); + } else { + shell_output_str(&wget_command, "Connecting...", ""); + } +} +/*---------------------------------------------------------------------------*/ +PROCESS_THREAD(shell_wget_process, ev, data) +{ + PROCESS_BEGIN(); + + strncpy(url, data, sizeof(url)); + open_url(url); + + running = 1; + + while(running) { + PROCESS_WAIT_EVENT(); + + if(ev == tcpip_event) { + webclient_appcall(data); + } else if(ev == resolv_event_found) { + /* Either found a hostname, or not. */ + if((char *)data != NULL && + resolv_lookup((char *)data) != NULL) { + open_url(url); + } else { + shell_output_str(&wget_command, "Host not found.", ""); + } + } + } + + PROCESS_END(); +} +/*---------------------------------------------------------------------------*/ +void +shell_wget_init(void) +{ + shell_register_command(&wget_command); +} +/*---------------------------------------------------------------------------*/ +void +webclient_datahandler(char *data, u16_t len) +{ + if(len == 0) { + running = 0; + } else { + shell_output(&wget_command, data, len, NULL, 0); + } +} +/*---------------------------------------------------------------------------*/ +void +webclient_connected(void) +{ + shell_output_str(&wget_command, "connected", ""); +} +/*---------------------------------------------------------------------------*/ +void +webclient_timedout(void) +{ + shell_output_str(&wget_command, "timedout", ""); + running = 0; +} +/*---------------------------------------------------------------------------*/ +void +webclient_aborted(void) +{ + shell_output_str(&wget_command, "aborted", ""); + running = 0; +} +/*---------------------------------------------------------------------------*/ +void +webclient_closed(void) +{ + shell_output_str(&wget_command, "closed", ""); + running = 0; +} +/*---------------------------------------------------------------------------*/ diff --git a/apps/shell/shell-wget.h b/apps/shell/shell-wget.h new file mode 100644 index 000000000..6153cb7d3 --- /dev/null +++ b/apps/shell/shell-wget.h @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2008, Swedish Institute of Computer Science. + * 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. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 operating system. + * + * $Id: shell-wget.h,v 1.1 2008/11/09 12:36:23 adamdunkels Exp $ + */ + +/** + * \file + * Header file for Contik shell command wget + * \author + * Adam Dunkels + */ + +#ifndef __SHELL_WGET_H__ +#define __SHELL_WGET_H__ + +#include "shell.h" + +void shell_wget_init(void); + +#endif /* __SHELL_WGET_H__ */