Utility library to read and write Ndef messages from/to a Type4 NFC tag
Dependents: NFC M2M_2016_STM32 MyongjiElec_capstone1 IDW01M1_Cloud_IBM ... more
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NDEF NFC library
This library provides an abstract API to create NDEF formatted messages and records and to read/write them from/to a Type4 NFC Tag.
Implementations
At the moment, the NDEF API is implemented by X_NUCLEO_NFC01A1 and X_NUCLEO_NFC02A1 Dynamic NFC Tag libraries respectively driving the X-NUCLEO-NFC01A1 and X-NUCLEO-NFC02A1 boards.
RecordType/RecordVCard.cpp@4:eaf6c49a86e4, 2015-12-01 (annotated)
- Committer:
- giovannivisentini
- Date:
- Tue Dec 01 08:30:27 2015 +0000
- Revision:
- 4:eaf6c49a86e4
- Parent:
- 2:760e36ba9c23
- Child:
- 6:739e3211749d
add the possibility to change the record content + add doc
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
giovannivisentini | 2:760e36ba9c23 | 1 | /* |
giovannivisentini | 2:760e36ba9c23 | 2 | * RecordVCard.cpp |
giovannivisentini | 2:760e36ba9c23 | 3 | * |
giovannivisentini | 2:760e36ba9c23 | 4 | * Created on: Nov 16, 2015 |
giovannivisentini | 2:760e36ba9c23 | 5 | * Author: giovanni visentini |
giovannivisentini | 2:760e36ba9c23 | 6 | */ |
giovannivisentini | 2:760e36ba9c23 | 7 | #include <cstring> |
giovannivisentini | 2:760e36ba9c23 | 8 | #include "RecordVCard.h" |
giovannivisentini | 2:760e36ba9c23 | 9 | |
giovannivisentini | 2:760e36ba9c23 | 10 | namespace NDefLib { |
giovannivisentini | 2:760e36ba9c23 | 11 | |
giovannivisentini | 4:eaf6c49a86e4 | 12 | const std::string RecordVCard::sEmptyTagContent(""); |
giovannivisentini | 4:eaf6c49a86e4 | 13 | const std::string RecordVCard::sVcardMimeType("text/vcard"); |
giovannivisentini | 4:eaf6c49a86e4 | 14 | const std::string RecordVCard::sStartVCardTag("BEGIN:VCARD\nVERSION:3.0\n"); |
giovannivisentini | 4:eaf6c49a86e4 | 15 | const std::string RecordVCard::sStartFieldTag[] = |
giovannivisentini | 4:eaf6c49a86e4 | 16 | { "ADR:", "ADR;TYPE=home:", "ADR;TYPE=work:", "AGENT:", "BDAY:", |
giovannivisentini | 4:eaf6c49a86e4 | 17 | "CATEGORIES:", "EMAIL:", "EMAIL;TYPE=home:", "EMAIL;TYPE=work:", |
giovannivisentini | 4:eaf6c49a86e4 | 18 | "FN:", "GEO:", "IMPP:", "KEY;TYPE=PGP:", |
giovannivisentini | 4:eaf6c49a86e4 | 19 | "KEY;TYPE=PGP;ENCODING=B:","LOGO:", "LOGO;VALUE=uri:", |
giovannivisentini | 4:eaf6c49a86e4 | 20 | "LOGO;ENCODING=B;", "N:", "NICKNAME:", "NOTE:", "ORG:", |
giovannivisentini | 4:eaf6c49a86e4 | 21 | "PHOTO;VALUE=uri:", "PHOTO;ENCODING=B;", "REV:", "SOURCE:", |
giovannivisentini | 4:eaf6c49a86e4 | 22 | "TEL:", "TEL;TYPE=HOME:", "TEL;TYPE=WORK:", "TEL;TYPE=CELL:", |
giovannivisentini | 4:eaf6c49a86e4 | 23 | "TITLE:", "URL:", }; |
giovannivisentini | 4:eaf6c49a86e4 | 24 | |
giovannivisentini | 4:eaf6c49a86e4 | 25 | const std::string RecordVCard::sEndFieldTag("\n"); |
giovannivisentini | 4:eaf6c49a86e4 | 26 | const std::string RecordVCard::sEndVCardTag("END:VCARD"); |
giovannivisentini | 4:eaf6c49a86e4 | 27 | |
giovannivisentini | 4:eaf6c49a86e4 | 28 | RecordVCard::RecordVCard(const VCardInfo_t &info) : |
giovannivisentini | 4:eaf6c49a86e4 | 29 | RecordMimeType(sVcardMimeType), mCardInfo(info),mContentIsChange(true) { |
giovannivisentini | 4:eaf6c49a86e4 | 30 | updateContentInfoString(); |
giovannivisentini | 4:eaf6c49a86e4 | 31 | } |
giovannivisentini | 2:760e36ba9c23 | 32 | |
giovannivisentini | 4:eaf6c49a86e4 | 33 | void RecordVCard::updateContentInfoString() { |
giovannivisentini | 4:eaf6c49a86e4 | 34 | if(!mContentIsChange) |
giovannivisentini | 4:eaf6c49a86e4 | 35 | return; |
giovannivisentini | 4:eaf6c49a86e4 | 36 | |
giovannivisentini | 4:eaf6c49a86e4 | 37 | mCardInfoString = sStartVCardTag; |
giovannivisentini | 4:eaf6c49a86e4 | 38 | |
giovannivisentini | 4:eaf6c49a86e4 | 39 | VCardInfo_t::const_iterator it = mCardInfo.begin(); |
giovannivisentini | 4:eaf6c49a86e4 | 40 | VCardInfo_t::const_iterator end = mCardInfo.end(); |
giovannivisentini | 2:760e36ba9c23 | 41 | |
giovannivisentini | 4:eaf6c49a86e4 | 42 | for (; it != end; ++it) { |
giovannivisentini | 4:eaf6c49a86e4 | 43 | mCardInfoString += sStartFieldTag[it->first]; |
giovannivisentini | 4:eaf6c49a86e4 | 44 | mCardInfoString += it->second; |
giovannivisentini | 4:eaf6c49a86e4 | 45 | mCardInfoString += sEndFieldTag; |
giovannivisentini | 4:eaf6c49a86e4 | 46 | } //for |
giovannivisentini | 4:eaf6c49a86e4 | 47 | |
giovannivisentini | 4:eaf6c49a86e4 | 48 | mCardInfoString += sEndVCardTag; |
giovannivisentini | 4:eaf6c49a86e4 | 49 | |
giovannivisentini | 4:eaf6c49a86e4 | 50 | setMimeDataPointer((uint8_t*)mCardInfoString.data(),mCardInfoString.size()); |
giovannivisentini | 4:eaf6c49a86e4 | 51 | |
giovannivisentini | 4:eaf6c49a86e4 | 52 | mContentIsChange=false; |
giovannivisentini | 2:760e36ba9c23 | 53 | |
giovannivisentini | 2:760e36ba9c23 | 54 | } |
giovannivisentini | 2:760e36ba9c23 | 55 | |
giovannivisentini | 4:eaf6c49a86e4 | 56 | uint16_t RecordVCard::findVCardFieldDataLenght(const std::string &content, |
giovannivisentini | 4:eaf6c49a86e4 | 57 | uint16_t offset) { |
giovannivisentini | 4:eaf6c49a86e4 | 58 | std::size_t pos = content.find(sEndFieldTag, offset); |
giovannivisentini | 4:eaf6c49a86e4 | 59 | if (pos == std::string::npos) { //if we don't find the end, lets consume all the content |
giovannivisentini | 4:eaf6c49a86e4 | 60 | return content.size() - offset; |
giovannivisentini | 4:eaf6c49a86e4 | 61 | } //else |
giovannivisentini | 4:eaf6c49a86e4 | 62 | return content.find(sEndFieldTag, offset) - offset; |
giovannivisentini | 4:eaf6c49a86e4 | 63 | } //findVCardFieldDataLenght |
giovannivisentini | 2:760e36ba9c23 | 64 | |
giovannivisentini | 4:eaf6c49a86e4 | 65 | int8_t RecordVCard::findVCardFieldType(const std::string &content, |
giovannivisentini | 4:eaf6c49a86e4 | 66 | uint16_t offset) { |
giovannivisentini | 4:eaf6c49a86e4 | 67 | const uint32_t nFieldTag = sizeof(sStartFieldTag) |
giovannivisentini | 4:eaf6c49a86e4 | 68 | / sizeof(sStartFieldTag[0]); |
giovannivisentini | 4:eaf6c49a86e4 | 69 | for (uint32_t i = 0; i < nFieldTag; i++) { |
giovannivisentini | 4:eaf6c49a86e4 | 70 | if (content.find(sStartFieldTag[i], offset) != std::string::npos) |
giovannivisentini | 2:760e36ba9c23 | 71 | return i; |
giovannivisentini | 4:eaf6c49a86e4 | 72 | } //for |
giovannivisentini | 2:760e36ba9c23 | 73 | return -1; |
giovannivisentini | 4:eaf6c49a86e4 | 74 | } //findVCardFieldType |
giovannivisentini | 2:760e36ba9c23 | 75 | |
giovannivisentini | 4:eaf6c49a86e4 | 76 | RecordVCard* RecordVCard::parse(const RecordHeader &header, |
giovannivisentini | 4:eaf6c49a86e4 | 77 | const uint8_t* buffer) { |
giovannivisentini | 4:eaf6c49a86e4 | 78 | if (header.getFNT() != RecordHeader::Mime_media_type |
giovannivisentini | 4:eaf6c49a86e4 | 79 | || header.getTypeLength() != sVcardMimeType.size()) { |
giovannivisentini | 2:760e36ba9c23 | 80 | return NULL; |
giovannivisentini | 4:eaf6c49a86e4 | 81 | } //else |
giovannivisentini | 4:eaf6c49a86e4 | 82 | if (sVcardMimeType.compare(0, sVcardMimeType.size(), (const char*) buffer, |
giovannivisentini | 4:eaf6c49a86e4 | 83 | sVcardMimeType.size()) != 0) { |
giovannivisentini | 2:760e36ba9c23 | 84 | return NULL; |
giovannivisentini | 2:760e36ba9c23 | 85 | } |
giovannivisentini | 4:eaf6c49a86e4 | 86 | buffer += header.getTypeLength(); |
giovannivisentini | 2:760e36ba9c23 | 87 | //we are at the start of the vcard data |
giovannivisentini | 4:eaf6c49a86e4 | 88 | if (sStartVCardTag.compare(0, sStartVCardTag.size(), (const char*) (buffer), |
giovannivisentini | 4:eaf6c49a86e4 | 89 | sStartVCardTag.size()) != 0) |
giovannivisentini | 2:760e36ba9c23 | 90 | return NULL; |
giovannivisentini | 2:760e36ba9c23 | 91 | //the version is ok |
giovannivisentini | 4:eaf6c49a86e4 | 92 | const std::string vCardContent((const char*) buffer + sStartVCardTag.size(), |
giovannivisentini | 4:eaf6c49a86e4 | 93 | header.getPlayloadLength() - sStartVCardTag.size()); |
giovannivisentini | 4:eaf6c49a86e4 | 94 | uint16_t offset = 0; |
giovannivisentini | 4:eaf6c49a86e4 | 95 | buffer += sStartVCardTag.size(); // for debug |
giovannivisentini | 2:760e36ba9c23 | 96 | VCardInfo_t info; |
giovannivisentini | 4:eaf6c49a86e4 | 97 | do { |
giovannivisentini | 4:eaf6c49a86e4 | 98 | const int8_t type = findVCardFieldType(vCardContent, offset); |
giovannivisentini | 2:760e36ba9c23 | 99 | |
giovannivisentini | 4:eaf6c49a86e4 | 100 | if (type >= 0) { //if is a valid type |
giovannivisentini | 4:eaf6c49a86e4 | 101 | const VCardField_t fieldType = (VCardField_t) type; |
giovannivisentini | 4:eaf6c49a86e4 | 102 | offset += sStartFieldTag[fieldType].size(); // skip the tag name |
giovannivisentini | 2:760e36ba9c23 | 103 | //search the tag size |
giovannivisentini | 4:eaf6c49a86e4 | 104 | const uint16_t length = findVCardFieldDataLenght(vCardContent, |
giovannivisentini | 4:eaf6c49a86e4 | 105 | offset); |
giovannivisentini | 4:eaf6c49a86e4 | 106 | info[fieldType] = vCardContent.substr(offset, length); |
giovannivisentini | 4:eaf6c49a86e4 | 107 | offset += length + sEndFieldTag.size(); |
giovannivisentini | 4:eaf6c49a86e4 | 108 | } else { |
giovannivisentini | 2:760e36ba9c23 | 109 | //unknow field, skip until next one |
giovannivisentini | 4:eaf6c49a86e4 | 110 | offset += findVCardFieldDataLenght(vCardContent, offset) |
giovannivisentini | 4:eaf6c49a86e4 | 111 | + sEndFieldTag.size(); |
giovannivisentini | 2:760e36ba9c23 | 112 | } |
giovannivisentini | 2:760e36ba9c23 | 113 | |
giovannivisentini | 4:eaf6c49a86e4 | 114 | } while (offset < vCardContent.size()); |
giovannivisentini | 2:760e36ba9c23 | 115 | |
giovannivisentini | 2:760e36ba9c23 | 116 | return new RecordVCard(info); |
giovannivisentini | 2:760e36ba9c23 | 117 | } |
giovannivisentini | 2:760e36ba9c23 | 118 | |
giovannivisentini | 2:760e36ba9c23 | 119 | } /* namespace NDefLib */ |