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538 lines
16 KiB
538 lines
16 KiB
/**************************************************************************** |
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* apps/nshlib/nsh_apps.c |
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* |
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* This file is part of NuttX, contributed by Darcy Gong |
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* |
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* Copyright (C) 2012 Gregory Nutt. All rights reserved. |
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* Author: Darcy Gong 2012-10-30 |
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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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* |
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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 copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#ifdef CONFIG_NETUTILS_CODECS |
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#include <sys/stat.h> |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <string.h> |
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#include <sched.h> |
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#include <fcntl.h> |
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#include <libgen.h> |
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#include <errno.h> |
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#include <debug.h> |
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#if defined(CONFIG_NSH_DISABLE_URLENCODE) && defined(CONFIG_NSH_DISABLE_URLDECODE) |
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# undef CONFIG_CODECS_URLCODE |
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#endif |
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#ifdef CONFIG_CODECS_URLCODE |
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#include <apps/netutils/urldecode.h> |
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#endif |
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#if defined(CONFIG_NSH_DISABLE_BASE64ENC) && defined(CONFIG_NSH_DISABLE_BASE64ENC) |
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# undef CONFIG_CODECS_BASE64 |
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#endif |
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#ifdef CONFIG_CODECS_BASE64 |
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#include <apps/netutils/base64.h> |
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#endif |
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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#include <apps/netutils/md5.h> |
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#endif |
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#include "nsh.h" |
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#include "nsh_console.h" |
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/**************************************************************************** |
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* Pre-processor Definitions |
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****************************************************************************/ |
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#ifndef CONFIG_NSH_CODECS_BUFSIZE |
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# define CONFIG_NSH_CODECS_BUFSIZE 128 |
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#endif |
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#define CODEC_MODE_URLENCODE 1 |
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#define CODEC_MODE_URLDECODE 2 |
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#define CODEC_MODE_BASE64ENC 3 |
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#define CODEC_MODE_BASE64DEC 4 |
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#define CODEC_MODE_HASH_MD5 5 |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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typedef void (*codec_callback_t)(FAR char *src_buff, int src_buff_len, |
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FAR char *dst_buff, FAR int *dst_buff_len, |
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int mode); |
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/**************************************************************************** |
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* Private Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: urlencode_cb |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_URLCODE) && !defined(CONFIG_NSH_DISABLE_URLENCODE) |
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static void urlencode_cb(FAR char *src_buff, int src_buff_len, |
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FAR char *dst_buff, FAR int *dst_buff_len, int mode) |
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{ |
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urlencode(src_buff,src_buff_len,dst_buff,dst_buff_len); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: urldecode_cb |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_URLCODE) && !defined(CONFIG_NSH_DISABLE_URLDECODE) |
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static void urldecode_cb(FAR char *src_buff, int src_buff_len, FAR char *dst_buff, |
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FAR int *dst_buff_len, int mode) |
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{ |
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urldecode(src_buff,src_buff_len,dst_buff,dst_buff_len); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: b64enc_cb |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_BASE64) && !defined(CONFIG_NSH_DISABLE_BASE64ENC) |
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static void b64enc_cb(FAR char *src_buff, int src_buff_len, FAR char *dst_buff, |
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FAR int *dst_buff_len, int mode) |
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{ |
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if (mode == 0) |
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{ |
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//dst_buff = |
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base64_encode((unsigned char *)src_buff, src_buff_len, |
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(unsigned char *)dst_buff, (size_t *)dst_buff_len); |
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} |
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else |
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{ |
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//dst_buff = |
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base64w_encode((unsigned char *)src_buff, src_buff_len, |
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(unsigned char *)dst_buff, (size_t *)dst_buff_len); |
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} |
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} |
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#endif |
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/**************************************************************************** |
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* Name: b64dec_cb |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_BASE64) && !defined(CONFIG_NSH_DISABLE_BASE64DEC) |
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static void b64dec_cb(FAR char *src_buff, int src_buff_len, FAR char *dst_buff, |
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FAR int *dst_buff_len, int mode) |
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{ |
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if (mode == 0) |
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{ |
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//dst_buff = |
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base64_decode((unsigned char *)src_buff, src_buff_len, |
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(unsigned char *)dst_buff, (size_t *)dst_buff_len); |
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} |
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else |
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{ |
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//dst_buff = |
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base64w_decode((unsigned char *)src_buff, src_buff_len, |
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(unsigned char *)dst_buff,(size_t *)dst_buff_len); |
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} |
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} |
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#endif |
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/**************************************************************************** |
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* Name: md5_cb |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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static void md5_cb(FAR char *src_buff, int src_buff_len, FAR char *dst_buff, |
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FAR int *dst_buff_len, int mode) |
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{ |
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MD5Update((MD5_CTX *)dst_buff, (unsigned char *)src_buff, src_buff_len); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: calc_codec_buffsize |
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****************************************************************************/ |
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static int calc_codec_buffsize(int src_buffsize, uint8_t mode) |
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{ |
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switch (mode) |
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{ |
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case CODEC_MODE_URLENCODE: |
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return src_buffsize*3+1; |
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case CODEC_MODE_URLDECODE: |
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return src_buffsize+1; |
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case CODEC_MODE_BASE64ENC: |
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return ((src_buffsize + 2)/ 3 * 4)+1; |
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case CODEC_MODE_BASE64DEC: |
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return (src_buffsize / 4 * 3 + 2)+1; |
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case CODEC_MODE_HASH_MD5: |
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return 32+1; |
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default: |
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return src_buffsize+1; |
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} |
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} |
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/**************************************************************************** |
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* Name: cmd_codecs_proc |
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****************************************************************************/ |
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static int cmd_codecs_proc(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv, |
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uint8_t mode, codec_callback_t func) |
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{ |
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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static const unsigned char hex_chars[] = "0123456789abcdef"; |
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MD5_CTX ctx; |
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unsigned char mac[16]; |
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char *pSrc; |
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char *pDest; |
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#endif |
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char *localfile = NULL; |
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char *src_buffer = NULL; |
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char *buffer = NULL; |
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char *fullpath = NULL; |
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const char *fmt; |
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char *s_data; |
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bool badarg = false; |
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bool is_file = false; |
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bool is_websafe=false; |
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int option; |
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int fd = -1; |
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int buff_len = 0; |
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int src_buff_len = 0; |
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int i = 0; |
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int ret = OK; |
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/* Get the command options */ |
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while ((option = getopt(argc, argv, ":fw")) != ERROR) |
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{ |
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switch (option) |
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{ |
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case 'f': |
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is_file = true; |
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break; |
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#ifdef CONFIG_CODECS_BASE64 |
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case 'w': |
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is_websafe = true; |
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if (!(mode == CODEC_MODE_BASE64ENC || mode == CODEC_MODE_BASE64DEC)) |
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{ |
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badarg = true; |
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} |
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break; |
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#endif |
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case ':': |
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nsh_output(vtbl, g_fmtargrequired, argv[0]); |
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badarg = true; |
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break; |
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case '?': |
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default: |
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nsh_output(vtbl, g_fmtarginvalid, argv[0]); |
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badarg = true; |
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break; |
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} |
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} |
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/* If a bad argument was encountered, then return without processing the command */ |
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if (badarg) |
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{ |
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return ERROR; |
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} |
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/* There should be exactly on parameter left on the command-line */ |
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if (optind == argc-1) |
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{ |
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s_data = argv[optind]; |
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} |
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else if (optind >= argc) |
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{ |
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fmt = g_fmttoomanyargs; |
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goto errout; |
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} |
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else |
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{ |
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fmt = g_fmtargrequired; |
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goto errout; |
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} |
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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if (mode == CODEC_MODE_HASH_MD5) |
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{ |
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MD5Init(&ctx); |
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} |
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#endif |
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if (is_file) |
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{ |
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/* Get the local file name */ |
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localfile = s_data; |
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/* Get the full path to the local file */ |
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fullpath = nsh_getfullpath(vtbl, localfile); |
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/* Open the local file for writing */ |
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fd = open(fullpath, O_RDONLY|O_TRUNC, 0644); |
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if (fd < 0) |
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{ |
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nsh_output(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO); |
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ret = ERROR; |
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goto exit; |
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} |
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src_buffer = malloc(CONFIG_NSH_CODECS_BUFSIZE+2); |
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#if defined(CONFIG_CODECS_BASE64) && !defined(CONFIG_NSH_DISABLE_BASE64ENC) |
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if (mode == CODEC_MODE_BASE64ENC) |
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{ |
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src_buff_len = CONFIG_NSH_CODECS_BUFSIZE / 3 * 3; |
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} |
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else |
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#endif |
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{ |
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src_buff_len = CONFIG_NSH_CODECS_BUFSIZE; |
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} |
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buff_len = calc_codec_buffsize(src_buff_len+2, mode); |
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buffer = malloc(buff_len); |
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while(true) |
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{ |
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memset(src_buffer, 0, src_buff_len+2); |
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ret=read(fd, src_buffer, src_buff_len); |
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if (ret < 0) |
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{ |
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nsh_output(vtbl, g_fmtcmdfailed, argv[0], "read", NSH_ERRNO); |
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ret = ERROR; |
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goto exit; |
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} |
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else if(ret==0) |
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{ |
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break; |
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} |
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#if defined(CONFIG_CODECS_URLCODE) && !defined(CONFIG_NSH_DISABLE_URLDECODE) |
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if (mode == CODEC_MODE_URLDECODE) |
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{ |
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if (src_buffer[src_buff_len-1]=='%') |
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{ |
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ret += read(fd,&src_buffer[src_buff_len],2); |
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} |
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else if (src_buffer[src_buff_len-2]=='%') |
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{ |
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ret += read(fd,&src_buffer[src_buff_len],1); |
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} |
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} |
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#endif |
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memset(buffer, 0, buff_len); |
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if (func) |
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{ |
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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if (mode == CODEC_MODE_HASH_MD5) |
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{ |
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func(src_buffer, ret, (char *)&ctx, &buff_len,0); |
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} |
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else |
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#endif |
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{ |
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func(src_buffer, ret, buffer, &buff_len,(is_websafe)?1:0); |
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nsh_output(vtbl, "%s", buffer); |
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} |
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} |
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buff_len = calc_codec_buffsize(src_buff_len+2, mode); |
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} |
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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if (mode == CODEC_MODE_HASH_MD5) |
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{ |
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MD5Final(mac, &ctx); |
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pSrc = (char *)&mac; |
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pDest = buffer; |
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for(i=0;i<16;i++,pSrc++) |
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{ |
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*pDest++ = hex_chars[(*pSrc) >> 4]; |
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*pDest++ = hex_chars[(*pSrc) & 0x0f]; |
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} |
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*pDest='\0'; |
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nsh_output(vtbl, "%s\n", buffer); |
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} |
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#endif |
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ret = OK; |
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goto exit; |
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} |
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else |
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{ |
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src_buffer = s_data; |
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src_buff_len = strlen(s_data); |
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buff_len = calc_codec_buffsize(src_buff_len, mode); |
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buffer = malloc(buff_len); |
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buffer[0]=0; |
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if (!buffer) |
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{ |
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fmt = g_fmtcmdoutofmemory; |
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goto errout; |
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} |
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memset(buffer, 0, buff_len); |
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if (func) |
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{ |
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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if (mode == CODEC_MODE_HASH_MD5) |
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{ |
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func(src_buffer, src_buff_len, (char *)&ctx, &buff_len, 0); |
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MD5Final(mac, &ctx); |
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pSrc = (char *)&mac; |
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pDest = buffer; |
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for(i=0;i<16;i++,pSrc++) |
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{ |
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*pDest++ = hex_chars[(*pSrc) >> 4]; |
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*pDest++ = hex_chars[(*pSrc) & 0x0f]; |
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} |
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*pDest='\0'; |
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} |
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else |
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#endif |
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{ |
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func(src_buffer, src_buff_len, buffer, &buff_len,(is_websafe)?1:0); |
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} |
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} |
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nsh_output(vtbl, "%s\n",buffer); |
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src_buffer = NULL; |
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goto exit; |
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} |
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exit: |
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if (fd >= 0) |
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{ |
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close(fd); |
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} |
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if (fullpath) |
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{ |
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free(fullpath); |
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} |
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if (src_buffer) |
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{ |
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free(src_buffer); |
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} |
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if (buffer) |
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{ |
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free(buffer); |
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} |
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return ret; |
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errout: |
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nsh_output(vtbl, fmt, argv[0]); |
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ret = ERROR; |
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goto exit; |
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} |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: cmd_urlencode |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_URLCODE) && !defined(CONFIG_NSH_DISABLE_URLENCODE) |
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int cmd_urlencode(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) |
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{ |
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return cmd_codecs_proc(vtbl, argc, argv, CODEC_MODE_URLENCODE, urlencode_cb); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: cmd_urldecode |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_URLCODE) && !defined(CONFIG_NSH_DISABLE_URLDECODE) |
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int cmd_urldecode(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) |
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{ |
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return cmd_codecs_proc(vtbl, argc, argv, CODEC_MODE_URLDECODE, urldecode_cb); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: cmd_base64encode |
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****************************************************************************/ |
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|
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#if defined(CONFIG_CODECS_BASE64) && !defined(CONFIG_NSH_DISABLE_BASE64ENC) |
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int cmd_base64encode(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) |
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{ |
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return cmd_codecs_proc(vtbl, argc, argv, CODEC_MODE_BASE64ENC, b64enc_cb); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: cmd_base64decode |
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****************************************************************************/ |
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#if defined(CONFIG_CODECS_BASE64) && !defined(CONFIG_NSH_DISABLE_BASE64DEC) |
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int cmd_base64decode(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) |
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{ |
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return cmd_codecs_proc(vtbl, argc, argv, CODEC_MODE_BASE64DEC, b64dec_cb); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: cmd_md5 |
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****************************************************************************/ |
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|
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#if defined(CONFIG_CODECS_HASH_MD5) && !defined(CONFIG_NSH_DISABLE_MD5) |
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int cmd_md5(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) |
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{ |
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return cmd_codecs_proc(vtbl,argc,argv,CODEC_MODE_HASH_MD5,md5_cb); |
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} |
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#endif |
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#endif /* CONFIG_NETUTILS_CODECS */
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