David Fletcher / Mbed 2 deprecated CC3000WebServer

A Port of TI's Webserver for the CC3000

Dependencies:   mbed

WebServer/HttpString.cpp@2:e6a185df9e4c, 2013-09-16 (annotated)

Committer:
dflet
Date:
Mon Sep 16 18:37:14 2013 +0000
Revision:
2:e6a185df9e4c
Parent:
0:6ad60d78b315 
ADC and Leds now work on board and config.html page.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dflet 0:6ad60d78b315 1 /*****************************************************************************
dflet 0:6ad60d78b315 2 *
dflet 0:6ad60d78b315 3 * HttpString.c
dflet 0:6ad60d78b315 4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
dflet 0:6ad60d78b315 5 *
dflet 0:6ad60d78b315 6 * Redistribution and use in source and binary forms, with or without
dflet 0:6ad60d78b315 7 * modification, are permitted provided that the following conditions
dflet 0:6ad60d78b315 8 * are met:
dflet 0:6ad60d78b315 9 *
dflet 0:6ad60d78b315 10 * Redistributions of source code must retain the above copyright
dflet 0:6ad60d78b315 11 * notice, this list of conditions and the following disclaimer.
dflet 0:6ad60d78b315 12 *
dflet 0:6ad60d78b315 13 * Redistributions in binary form must reproduce the above copyright
dflet 0:6ad60d78b315 14 * notice, this list of conditions and the following disclaimer in the
dflet 0:6ad60d78b315 15 * documentation and/or other materials provided with the
dflet 0:6ad60d78b315 16 * distribution.
dflet 0:6ad60d78b315 17 *
dflet 0:6ad60d78b315 18 * Neither the name of Texas Instruments Incorporated nor the names of
dflet 0:6ad60d78b315 19 * its contributors may be used to endorse or promote products derived
dflet 0:6ad60d78b315 20 * from this software without specific prior written permission.
dflet 0:6ad60d78b315 21 *
dflet 0:6ad60d78b315 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
dflet 0:6ad60d78b315 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
dflet 0:6ad60d78b315 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
dflet 0:6ad60d78b315 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
dflet 0:6ad60d78b315 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
dflet 0:6ad60d78b315 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
dflet 0:6ad60d78b315 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
dflet 0:6ad60d78b315 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
dflet 0:6ad60d78b315 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
dflet 0:6ad60d78b315 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
dflet 0:6ad60d78b315 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
dflet 0:6ad60d78b315 33 *
dflet 0:6ad60d78b315 34 *****************************************************************************/
dflet 0:6ad60d78b315 35 #include "mbed.h"
dflet 0:6ad60d78b315 36 #include "string.h"
dflet 0:6ad60d78b315 37 #include <stdlib.h>
dflet 0:6ad60d78b315 38 #include "HttpString.h"
dflet 0:6ad60d78b315 39
dflet 0:6ad60d78b315 40 /**
dflet 0:6ad60d78b315 41 * @addtogroup HttpString
dflet 0:6ad60d78b315 42 * @{
dflet 0:6ad60d78b315 43 */
dflet 0:6ad60d78b315 44
dflet 0:6ad60d78b315 45 char digits[] = "0123456789";
dflet 0:6ad60d78b315 46 char hexDigits[] = "0123456789abcdef";
dflet 0:6ad60d78b315 47
dflet 0:6ad60d78b315 48 int HttpString_strcmp(struct HttpBlob first, struct HttpBlob second)
dflet 0:6ad60d78b315 49 {
dflet 0:6ad60d78b315 50 int min,res;
dflet 0:6ad60d78b315 51 if (first.uLength > second.uLength)
dflet 0:6ad60d78b315 52 min = second.uLength;
dflet 0:6ad60d78b315 53 else
dflet 0:6ad60d78b315 54 min = first.uLength;
dflet 0:6ad60d78b315 55
dflet 0:6ad60d78b315 56 // Compare a common length which might be equal
dflet 0:6ad60d78b315 57 res = memcmp(first.pData, second.pData, min);
dflet 0:6ad60d78b315 58 if (res != 0)
dflet 0:6ad60d78b315 59 return res;
dflet 0:6ad60d78b315 60
dflet 0:6ad60d78b315 61 // Common length is equal, so the longer blob is "larger"
dflet 0:6ad60d78b315 62 if (first.uLength > second.uLength)
dflet 0:6ad60d78b315 63 return 1;
dflet 0:6ad60d78b315 64 else if (first.uLength < second.uLength)
dflet 0:6ad60d78b315 65 return -1;
dflet 0:6ad60d78b315 66 else
dflet 0:6ad60d78b315 67 return 0;
dflet 0:6ad60d78b315 68 }
dflet 0:6ad60d78b315 69
dflet 0:6ad60d78b315 70 static void ToLower(char * str, uint16 len)
dflet 0:6ad60d78b315 71 {
dflet 0:6ad60d78b315 72 int i;
dflet 0:6ad60d78b315 73 for (i=0 ; i<=len; i++)
dflet 0:6ad60d78b315 74 {
dflet 0:6ad60d78b315 75 if (str[i]>='A' && str[i]<='Z')
dflet 0:6ad60d78b315 76 str[i] = str[i] + 32;
dflet 0:6ad60d78b315 77 }
dflet 0:6ad60d78b315 78 }
dflet 0:6ad60d78b315 79
dflet 0:6ad60d78b315 80 uint8* HttpString_nextToken(char* pToken, uint16 uTokenLength, struct HttpBlob blob)
dflet 0:6ad60d78b315 81 {
dflet 0:6ad60d78b315 82 uint8* pch = blob.pData;
dflet 0:6ad60d78b315 83 struct HttpBlob partialBlob;
dflet 0:6ad60d78b315 84 struct HttpBlob token;
dflet 0:6ad60d78b315 85 token.pData = (uint8*)pToken;
dflet 0:6ad60d78b315 86 token.uLength = uTokenLength;
dflet 0:6ad60d78b315 87 ToLower((char *)blob.pData, blob.uLength);
dflet 0:6ad60d78b315 88 while (pch < blob.pData + blob.uLength)
dflet 0:6ad60d78b315 89 {
dflet 0:6ad60d78b315 90 // Calculate how many blob bytes we should search
dflet 0:6ad60d78b315 91 int nMaxCount = blob.uLength - (pch - blob.pData) - uTokenLength + 1;
dflet 0:6ad60d78b315 92 if (nMaxCount < 1)
dflet 0:6ad60d78b315 93 return NULL;
dflet 0:6ad60d78b315 94
dflet 0:6ad60d78b315 95 // Search for the first character of the token
dflet 0:6ad60d78b315 96 pch = (uint8*)memchr(pch, pToken[0], nMaxCount);
dflet 0:6ad60d78b315 97 if (pch==NULL)
dflet 0:6ad60d78b315 98 return NULL;
dflet 0:6ad60d78b315 99
dflet 0:6ad60d78b315 100 // Found first character, now compare the rest
dflet 0:6ad60d78b315 101 partialBlob.pData = pch;
dflet 0:6ad60d78b315 102 partialBlob.uLength = uTokenLength;
dflet 0:6ad60d78b315 103 if (HttpString_strcmp(token, partialBlob)==0)
dflet 0:6ad60d78b315 104 return pch;
dflet 0:6ad60d78b315 105
dflet 0:6ad60d78b315 106 // Skip this byte, and look for the token in the rest of the blob
dflet 0:6ad60d78b315 107 ++pch;
dflet 0:6ad60d78b315 108 }
dflet 0:6ad60d78b315 109 return NULL;
dflet 0:6ad60d78b315 110 }
dflet 0:6ad60d78b315 111
dflet 0:6ad60d78b315 112 uint32 HttpString_atou(struct HttpBlob string)
dflet 0:6ad60d78b315 113 {
dflet 0:6ad60d78b315 114 return atoi((const char*)string.pData);
dflet 0:6ad60d78b315 115 }
dflet 0:6ad60d78b315 116
dflet 0:6ad60d78b315 117 void HttpString_utoa(uint32 uNum, struct HttpBlob* pString)
dflet 0:6ad60d78b315 118 {
dflet 0:6ad60d78b315 119 char* ptr;
dflet 0:6ad60d78b315 120 uint32 uTemp = uNum;
dflet 0:6ad60d78b315 121
dflet 0:6ad60d78b315 122 // value 0 is a special format
dflet 0:6ad60d78b315 123 if (uNum == 0)
dflet 0:6ad60d78b315 124 {
dflet 0:6ad60d78b315 125 pString->uLength = 1;
dflet 0:6ad60d78b315 126 *pString->pData = '0';
dflet 0:6ad60d78b315 127 return;
dflet 0:6ad60d78b315 128 }
dflet 0:6ad60d78b315 129
dflet 0:6ad60d78b315 130 // Find out the length of the number, in decimal base
dflet 0:6ad60d78b315 131 pString->uLength = 0;
dflet 0:6ad60d78b315 132 while (uTemp > 0)
dflet 0:6ad60d78b315 133 {
dflet 0:6ad60d78b315 134 uTemp /= 10;
dflet 0:6ad60d78b315 135 pString->uLength++;
dflet 0:6ad60d78b315 136 }
dflet 0:6ad60d78b315 137
dflet 0:6ad60d78b315 138 // Do the actual formatting, right to left
dflet 0:6ad60d78b315 139 uTemp = uNum;
dflet 0:6ad60d78b315 140 ptr = (char*)pString->pData + pString->uLength;
dflet 0:6ad60d78b315 141 while (uTemp > 0)
dflet 0:6ad60d78b315 142 {
dflet 0:6ad60d78b315 143 --ptr;
dflet 0:6ad60d78b315 144 *ptr = digits[uTemp % 10];
dflet 0:6ad60d78b315 145 uTemp /= 10;
dflet 0:6ad60d78b315 146 }
dflet 0:6ad60d78b315 147 }
dflet 0:6ad60d78b315 148
dflet 0:6ad60d78b315 149 void HttpString_htoa(uint32 uNum, struct HttpBlob* pString, uint8 bPadZero)
dflet 0:6ad60d78b315 150 {
dflet 0:6ad60d78b315 151 uint8* ptr;
dflet 0:6ad60d78b315 152 uint32 uTemp = uNum;
dflet 0:6ad60d78b315 153
dflet 0:6ad60d78b315 154 if (!bPadZero)
dflet 0:6ad60d78b315 155 {
dflet 0:6ad60d78b315 156 // value 0 is a special format
dflet 0:6ad60d78b315 157 if (uNum == 0)
dflet 0:6ad60d78b315 158 {
dflet 0:6ad60d78b315 159 pString->uLength = 1;
dflet 0:6ad60d78b315 160 *pString->pData = '0';
dflet 0:6ad60d78b315 161 return;
dflet 0:6ad60d78b315 162 }
dflet 0:6ad60d78b315 163
dflet 0:6ad60d78b315 164 // Find out the length of the number, in hexadecimal base
dflet 0:6ad60d78b315 165 pString->uLength = 0;
dflet 0:6ad60d78b315 166 while (uTemp > 0)
dflet 0:6ad60d78b315 167 {
dflet 0:6ad60d78b315 168 uTemp /= 16;
dflet 0:6ad60d78b315 169 pString->uLength++;
dflet 0:6ad60d78b315 170 }
dflet 0:6ad60d78b315 171 }
dflet 0:6ad60d78b315 172
dflet 0:6ad60d78b315 173 // Do the actual formatting, right to left
dflet 0:6ad60d78b315 174 uTemp = uNum;
dflet 0:6ad60d78b315 175 ptr = pString->pData + pString->uLength;
dflet 0:6ad60d78b315 176 while (ptr > pString->pData)
dflet 0:6ad60d78b315 177 {
dflet 0:6ad60d78b315 178 --ptr;
dflet 0:6ad60d78b315 179 *ptr = (uint8)hexDigits[uTemp % 16];
dflet 0:6ad60d78b315 180 uTemp /= 16;
dflet 0:6ad60d78b315 181 }
dflet 0:6ad60d78b315 182 }
dflet 0:6ad60d78b315 183