David Fletcher
/
CC3000WebServer
A Port of TI's Webserver for the CC3000
WebServer/FlashDB.cpp@0:6ad60d78b315, 2013-09-14 (annotated)
- Committer:
- dflet
- Date:
- Sat Sep 14 17:38:41 2013 +0000
- Revision:
- 0:6ad60d78b315
Mostly working will serve the default pages index.html and config.html, but config.html is not woring at present.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dflet | 0:6ad60d78b315 | 1 | /***************************************************************************** |
dflet | 0:6ad60d78b315 | 2 | * |
dflet | 0:6ad60d78b315 | 3 | * FlashDB.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 "Common.h" |
dflet | 0:6ad60d78b315 | 37 | #include "FlashDB.h" |
dflet | 0:6ad60d78b315 | 38 | #include "HttpString.h" |
dflet | 0:6ad60d78b315 | 39 | #include "string.h" |
dflet | 0:6ad60d78b315 | 40 | |
dflet | 0:6ad60d78b315 | 41 | |
dflet | 0:6ad60d78b315 | 42 | /// This database flag indicates that all resource strings are to be matched with a case-sensitive string comparison function |
dflet | 0:6ad60d78b315 | 43 | #define FLASH_DB_FLAG_CASE_SENSITIVE (1 << 0) |
dflet | 0:6ad60d78b315 | 44 | |
dflet | 0:6ad60d78b315 | 45 | /** |
dflet | 0:6ad60d78b315 | 46 | * The header structure of the flash database |
dflet | 0:6ad60d78b315 | 47 | */ |
dflet | 0:6ad60d78b315 | 48 | //#ifdef __CCS__ |
dflet | 0:6ad60d78b315 | 49 | struct __attribute__ ((__packed__)) FlashDBHeader |
dflet | 0:6ad60d78b315 | 50 | //#elif __IAR_SYSTEMS_ICC__ |
dflet | 0:6ad60d78b315 | 51 | //#pragma pack(1) |
dflet | 0:6ad60d78b315 | 52 | //struct FlashDBHeader |
dflet | 0:6ad60d78b315 | 53 | //#endif |
dflet | 0:6ad60d78b315 | 54 | { |
dflet | 0:6ad60d78b315 | 55 | /// Amount of content type entries |
dflet | 0:6ad60d78b315 | 56 | uint16 uContentTypeAmount; |
dflet | 0:6ad60d78b315 | 57 | /// Offset of content-type entry list |
dflet | 0:6ad60d78b315 | 58 | uint16 uContentTypeOffset; |
dflet | 0:6ad60d78b315 | 59 | /// Amount of content entries |
dflet | 0:6ad60d78b315 | 60 | uint16 uContentAmount; |
dflet | 0:6ad60d78b315 | 61 | /// Offset of content entry list |
dflet | 0:6ad60d78b315 | 62 | uint16 uContentOffset; |
dflet | 0:6ad60d78b315 | 63 | /// Database flags. See FLASH_DB_FLAG_* |
dflet | 0:6ad60d78b315 | 64 | uint16 uFlags; |
dflet | 0:6ad60d78b315 | 65 | }; |
dflet | 0:6ad60d78b315 | 66 | |
dflet | 0:6ad60d78b315 | 67 | /** |
dflet | 0:6ad60d78b315 | 68 | * The header structure for a content entity in the database |
dflet | 0:6ad60d78b315 | 69 | */ |
dflet | 0:6ad60d78b315 | 70 | //#ifdef __CCS__ |
dflet | 0:6ad60d78b315 | 71 | struct __attribute__ ((__packed__)) FlashDBContentTypeEntry |
dflet | 0:6ad60d78b315 | 72 | //#elif __IAR_SYSTEMS_ICC__ |
dflet | 0:6ad60d78b315 | 73 | //#pragma pack(1) |
dflet | 0:6ad60d78b315 | 74 | //struct FlashDBContentTypeEntry |
dflet | 0:6ad60d78b315 | 75 | //#endif |
dflet | 0:6ad60d78b315 | 76 | { |
dflet | 0:6ad60d78b315 | 77 | /// Length of the value string. Should be 255 characters at most. |
dflet | 0:6ad60d78b315 | 78 | uint16 uValueLength; |
dflet | 0:6ad60d78b315 | 79 | /// Offset of the value string |
dflet | 0:6ad60d78b315 | 80 | uint16 uValueOffset; |
dflet | 0:6ad60d78b315 | 81 | }; |
dflet | 0:6ad60d78b315 | 82 | |
dflet | 0:6ad60d78b315 | 83 | extern const char FlashDBContentData[]; |
dflet | 0:6ad60d78b315 | 84 | |
dflet | 0:6ad60d78b315 | 85 | /** |
dflet | 0:6ad60d78b315 | 86 | * The header structure for a content entity in the database |
dflet | 0:6ad60d78b315 | 87 | */ |
dflet | 0:6ad60d78b315 | 88 | //#ifdef __CCS__ |
dflet | 0:6ad60d78b315 | 89 | struct __attribute__ ((__packed__)) FlashDBContentEntry |
dflet | 0:6ad60d78b315 | 90 | //#elif __IAR_SYSTEMS_ICC__ |
dflet | 0:6ad60d78b315 | 91 | //#pragma pack(1) |
dflet | 0:6ad60d78b315 | 92 | //struct FlashDBContentEntry |
dflet | 0:6ad60d78b315 | 93 | //#endif |
dflet | 0:6ad60d78b315 | 94 | { |
dflet | 0:6ad60d78b315 | 95 | /// Length of the resource string. Should be 255 characters at most. |
dflet | 0:6ad60d78b315 | 96 | uint16 uResourceLength; |
dflet | 0:6ad60d78b315 | 97 | /// Offset of the resource string |
dflet | 0:6ad60d78b315 | 98 | //uint32 uResourceOffset; |
dflet | 0:6ad60d78b315 | 99 | unsigned long uResourceOffset; |
dflet | 0:6ad60d78b315 | 100 | /// Flags. See FLASHDB_FLAG_* |
dflet | 0:6ad60d78b315 | 101 | uint16 uFlags; |
dflet | 0:6ad60d78b315 | 102 | /// Index of content type entry for this resource, in the content type list |
dflet | 0:6ad60d78b315 | 103 | uint16 uContentType; |
dflet | 0:6ad60d78b315 | 104 | /// Length (in bytes) of the content blob |
dflet | 0:6ad60d78b315 | 105 | uint16 uContentLength; |
dflet | 0:6ad60d78b315 | 106 | /// Offset of the content blob in the database |
dflet | 0:6ad60d78b315 | 107 | //uint32 uContentOffset; |
dflet | 0:6ad60d78b315 | 108 | unsigned long uContentOffset; |
dflet | 0:6ad60d78b315 | 109 | }; |
dflet | 0:6ad60d78b315 | 110 | |
dflet | 0:6ad60d78b315 | 111 | extern const char FlashDBContentData[]; |
dflet | 0:6ad60d78b315 | 112 | |
dflet | 0:6ad60d78b315 | 113 | /** |
dflet | 0:6ad60d78b315 | 114 | * The layout of the database file is as follows: |
dflet | 0:6ad60d78b315 | 115 | * Database Header |
dflet | 0:6ad60d78b315 | 116 | * Content type entry 1 |
dflet | 0:6ad60d78b315 | 117 | * Content type entry 2 |
dflet | 0:6ad60d78b315 | 118 | * and so on... |
dflet | 0:6ad60d78b315 | 119 | * Content entry 1 |
dflet | 0:6ad60d78b315 | 120 | * Content entry 2 |
dflet | 0:6ad60d78b315 | 121 | * and so on... |
dflet | 0:6ad60d78b315 | 122 | * Content type string 1 |
dflet | 0:6ad60d78b315 | 123 | * Content type string 2 |
dflet | 0:6ad60d78b315 | 124 | * and so on... |
dflet | 0:6ad60d78b315 | 125 | * Content blob 1 |
dflet | 0:6ad60d78b315 | 126 | * Content blob 2 |
dflet | 0:6ad60d78b315 | 127 | * and so on... |
dflet | 0:6ad60d78b315 | 128 | * |
dflet | 0:6ad60d78b315 | 129 | * Note: All offsets in the structures are absolute offsets, meaning they are relative to the database base pointer, as passed to FlashDB_Init() |
dflet | 0:6ad60d78b315 | 130 | */ |
dflet | 0:6ad60d78b315 | 131 | |
dflet | 0:6ad60d78b315 | 132 | /* this global shows a sample how static pages/files are stored in the memory */ |
dflet | 0:6ad60d78b315 | 133 | |
dflet | 0:6ad60d78b315 | 134 | #if 0 |
dflet | 0:6ad60d78b315 | 135 | struct StaticExamplePages |
dflet | 0:6ad60d78b315 | 136 | { |
dflet | 0:6ad60d78b315 | 137 | struct FlashDBHeader header; |
dflet | 0:6ad60d78b315 | 138 | struct FlashDBContentTypeEntry contentTypeList[]; |
dflet | 0:6ad60d78b315 | 139 | struct FlashDBContentEntry ContentList[]; |
dflet | 0:6ad60d78b315 | 140 | char contentType[][]; |
dflet | 0:6ad60d78b315 | 141 | char resource[][]; |
dflet | 0:6ad60d78b315 | 142 | char content[][]; |
dflet | 0:6ad60d78b315 | 143 | }; |
dflet | 0:6ad60d78b315 | 144 | #endif |
dflet | 0:6ad60d78b315 | 145 | |
dflet | 0:6ad60d78b315 | 146 | struct FlashDBHeader *gFlashDB; |
dflet | 0:6ad60d78b315 | 147 | |
dflet | 0:6ad60d78b315 | 148 | /** |
dflet | 0:6ad60d78b315 | 149 | * Initialize the flash database module |
dflet | 0:6ad60d78b315 | 150 | * @param pDatabase Pointer to the beginning of the database in flash memory |
dflet | 0:6ad60d78b315 | 151 | */ |
dflet | 0:6ad60d78b315 | 152 | void FlashDB_Init() |
dflet | 0:6ad60d78b315 | 153 | { |
dflet | 0:6ad60d78b315 | 154 | gFlashDB = (struct FlashDBHeader *)FlashDBContentData; |
dflet | 0:6ad60d78b315 | 155 | } |
dflet | 0:6ad60d78b315 | 156 | |
dflet | 0:6ad60d78b315 | 157 | /** |
dflet | 0:6ad60d78b315 | 158 | * Find a content-type in the database |
dflet | 0:6ad60d78b315 | 159 | * @param index The index of the content type in the database |
dflet | 0:6ad60d78b315 | 160 | * @param[out] pResult Returns the string and its length |
dflet | 0:6ad60d78b315 | 161 | * @return nonzero if successful. zero if index out of range. |
dflet | 0:6ad60d78b315 | 162 | */ |
dflet | 0:6ad60d78b315 | 163 | int FlashDB_FindContentType(uint16 index, struct HttpBlob* pResult) |
dflet | 0:6ad60d78b315 | 164 | { |
dflet | 0:6ad60d78b315 | 165 | struct FlashDBContentTypeEntry *pContentTypeEntryList; |
dflet | 0:6ad60d78b315 | 166 | |
dflet | 0:6ad60d78b315 | 167 | if (index > gFlashDB->uContentTypeAmount) |
dflet | 0:6ad60d78b315 | 168 | return 0; |
dflet | 0:6ad60d78b315 | 169 | |
dflet | 0:6ad60d78b315 | 170 | pContentTypeEntryList = (struct FlashDBContentTypeEntry *)((unsigned char*)gFlashDB + gFlashDB->uContentTypeOffset); |
dflet | 0:6ad60d78b315 | 171 | pContentTypeEntryList = (struct FlashDBContentTypeEntry *)(pContentTypeEntryList + index); |
dflet | 0:6ad60d78b315 | 172 | pResult->uLength = pContentTypeEntryList->uValueLength; |
dflet | 0:6ad60d78b315 | 173 | pResult->pData = (unsigned char*)((unsigned char*)gFlashDB + pContentTypeEntryList->uValueOffset); |
dflet | 0:6ad60d78b315 | 174 | |
dflet | 0:6ad60d78b315 | 175 | return 1; |
dflet | 0:6ad60d78b315 | 176 | } |
dflet | 0:6ad60d78b315 | 177 | |
dflet | 0:6ad60d78b315 | 178 | /** |
dflet | 0:6ad60d78b315 | 179 | * Lookup content in the database, given a resource identifier |
dflet | 0:6ad60d78b315 | 180 | * @param pResource The resource as given in the HTTP request |
dflet | 0:6ad60d78b315 | 181 | * @param[out] pResult Returns the content and its metadata |
dflet | 0:6ad60d78b315 | 182 | * @return nonzero if successful. zero if such a resource was not found. |
dflet | 0:6ad60d78b315 | 183 | */ |
dflet | 0:6ad60d78b315 | 184 | int FlashDB_FindContent(struct HttpBlob pResource, struct FlashDBContent* pResult) |
dflet | 0:6ad60d78b315 | 185 | { |
dflet | 0:6ad60d78b315 | 186 | /* it is assumed that the resource list is sorted */ |
dflet | 0:6ad60d78b315 | 187 | struct FlashDBContentEntry *pContentFieldStart; |
dflet | 0:6ad60d78b315 | 188 | struct FlashDBContentEntry *pContentFieldMoving; |
dflet | 0:6ad60d78b315 | 189 | struct HttpBlob MainPage; |
dflet | 0:6ad60d78b315 | 190 | uint16 uLowSearchIndex = 0; |
dflet | 0:6ad60d78b315 | 191 | uint16 uMidSearchIndex; |
dflet | 0:6ad60d78b315 | 192 | uint16 uHighSearchIndex; |
dflet | 0:6ad60d78b315 | 193 | int uComparison; |
dflet | 0:6ad60d78b315 | 194 | int16 found = -1; /* not found */ |
dflet | 0:6ad60d78b315 | 195 | struct HttpBlob ResourceBlob; |
dflet | 0:6ad60d78b315 | 196 | |
dflet | 0:6ad60d78b315 | 197 | uHighSearchIndex = gFlashDB->uContentAmount - 1; |
dflet | 0:6ad60d78b315 | 198 | pContentFieldStart = (struct FlashDBContentEntry *)((unsigned char*)gFlashDB + gFlashDB->uContentOffset); |
dflet | 0:6ad60d78b315 | 199 | |
dflet | 0:6ad60d78b315 | 200 | while (uLowSearchIndex <= uHighSearchIndex) |
dflet | 0:6ad60d78b315 | 201 | { |
dflet | 0:6ad60d78b315 | 202 | uMidSearchIndex = (uLowSearchIndex + uHighSearchIndex)/2; |
dflet | 0:6ad60d78b315 | 203 | pContentFieldMoving = pContentFieldStart + uMidSearchIndex; |
dflet | 0:6ad60d78b315 | 204 | ResourceBlob.pData = (unsigned char*)((unsigned char*)gFlashDB + pContentFieldMoving->uResourceOffset); |
dflet | 0:6ad60d78b315 | 205 | ResourceBlob.uLength = pContentFieldMoving->uResourceLength; |
dflet | 0:6ad60d78b315 | 206 | |
dflet | 0:6ad60d78b315 | 207 | if(pResource.uLength ==1 && *(pResource.pData)=='/') |
dflet | 0:6ad60d78b315 | 208 | { |
dflet | 0:6ad60d78b315 | 209 | MainPage.uLength = 11; |
dflet | 0:6ad60d78b315 | 210 | MainPage.pData = (unsigned char*)"/index.html"; |
dflet | 0:6ad60d78b315 | 211 | uComparison = HttpString_strcmp(MainPage, ResourceBlob); |
dflet | 0:6ad60d78b315 | 212 | } |
dflet | 0:6ad60d78b315 | 213 | else |
dflet | 0:6ad60d78b315 | 214 | uComparison = HttpString_strcmp(pResource, ResourceBlob); |
dflet | 0:6ad60d78b315 | 215 | // found the exact blob |
dflet | 0:6ad60d78b315 | 216 | if (uComparison == 0) |
dflet | 0:6ad60d78b315 | 217 | { |
dflet | 0:6ad60d78b315 | 218 | found = 1; |
dflet | 0:6ad60d78b315 | 219 | printf("Content found \r\n"); |
dflet | 0:6ad60d78b315 | 220 | break; |
dflet | 0:6ad60d78b315 | 221 | } |
dflet | 0:6ad60d78b315 | 222 | |
dflet | 0:6ad60d78b315 | 223 | // the requested blob is "larger" than the current blob |
dflet | 0:6ad60d78b315 | 224 | else if (uComparison > 0) |
dflet | 0:6ad60d78b315 | 225 | { |
dflet | 0:6ad60d78b315 | 226 | uLowSearchIndex = uMidSearchIndex + 1; |
dflet | 0:6ad60d78b315 | 227 | |
dflet | 0:6ad60d78b315 | 228 | } |
dflet | 0:6ad60d78b315 | 229 | // the requested blob is "smaller" than the current blob |
dflet | 0:6ad60d78b315 | 230 | else |
dflet | 0:6ad60d78b315 | 231 | { |
dflet | 0:6ad60d78b315 | 232 | uHighSearchIndex = uMidSearchIndex - 1; |
dflet | 0:6ad60d78b315 | 233 | |
dflet | 0:6ad60d78b315 | 234 | } |
dflet | 0:6ad60d78b315 | 235 | } |
dflet | 0:6ad60d78b315 | 236 | |
dflet | 0:6ad60d78b315 | 237 | if (found == -1) |
dflet | 0:6ad60d78b315 | 238 | { |
dflet | 0:6ad60d78b315 | 239 | printf("Content not found \r\n"); |
dflet | 0:6ad60d78b315 | 240 | return 0; |
dflet | 0:6ad60d78b315 | 241 | } |
dflet | 0:6ad60d78b315 | 242 | else |
dflet | 0:6ad60d78b315 | 243 | { |
dflet | 0:6ad60d78b315 | 244 | pResult->uContentType = pContentFieldMoving->uContentType; |
dflet | 0:6ad60d78b315 | 245 | pResult->uFlags = pContentFieldMoving->uFlags; |
dflet | 0:6ad60d78b315 | 246 | pResult->contentBlob.uLength = pContentFieldMoving->uContentLength; |
dflet | 0:6ad60d78b315 | 247 | pResult->contentBlob.pData = (unsigned char*)((unsigned char*)gFlashDB + pContentFieldMoving->uContentOffset); |
dflet | 0:6ad60d78b315 | 248 | return 1; |
dflet | 0:6ad60d78b315 | 249 | } |
dflet | 0:6ad60d78b315 | 250 | } |
dflet | 0:6ad60d78b315 | 251 |