1 | /**
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2 | * \file
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3 | * ESP8266 RESTful Bridge
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4 | * \author
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5 | * Tuan PM <tuanpm@live.com>
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6 | */
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7 | #include "rest.h"
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8 | REST::REST(ESP *e)
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9 | {
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10 | esp = e;
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11 | remote_instance = 0;
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12 | timeout = DEFAULT_REST_TIMEOUT;
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13 | }
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14 | void REST::restCallback(void *resp)
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15 | {
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16 | response = true;
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17 | res = resp;
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18 | }
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19 |
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20 | boolean REST::begin(const char* host, uint16_t port, boolean security)
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21 | {
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22 | uint8_t sec = 0;
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23 | if(security)
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24 | sec = 1;
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25 | restCb.attach(this, &REST::restCallback);
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26 |
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27 | uint16_t crc = esp->request(CMD_REST_SETUP, (uint32_t)&restCb, 1, 3);
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28 | crc = esp->request(crc,(uint8_t*)host, strlen(host));
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29 | crc = esp->request(crc,(uint8_t*)&port, 2);
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30 | crc = esp->request(crc,(uint8_t*)&sec, 1);
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31 | esp->request(crc);
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32 |
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33 | if(esp->waitReturn(timeout) && esp->return_value != 0){
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34 | remote_instance = esp->return_value;
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35 | return true;
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36 | }
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37 | return false;
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38 | }
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39 |
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40 | boolean REST::begin(const char* host)
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41 | {
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42 | return begin(host, 80, false);
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43 | }
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44 | void REST::request(const char* path, const char* method, const char* data, int len)
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45 | {
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46 | if(remote_instance == 0)
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47 | return;
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48 | uint16_t crc;
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49 | if(len > 0)
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50 | crc = esp->request(CMD_REST_REQUEST, 0, 0, 5);
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51 | else
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52 | crc = esp->request(CMD_REST_REQUEST, 0, 0, 3);
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53 | crc = esp->request(crc,(uint8_t*)&remote_instance, 4);
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54 | crc = esp->request(crc,(uint8_t*)method, strlen(method));
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55 | crc = esp->request(crc,(uint8_t*)path, strlen(path));
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56 | if(len > 0){
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57 | crc = esp->request(crc,(uint8_t*)&len, 2);
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58 | crc = esp->request(crc,(uint8_t*)data, len);
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59 | }
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60 |
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61 | esp->request(crc);
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62 | }
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63 | void REST::request(const char* path, const char* method, const char* data)
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64 | {
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65 | request(path, method, data, strlen(data));
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66 | }
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67 | void REST::get(const char* path, const char* data)
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68 | {
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69 | request(path, "GET", data);
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70 | }
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71 | void REST::get(const char* path)
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72 | {
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73 | request(path, "GET", 0, 0);
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74 | }
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75 | void REST::post(const char* path, const char* data)
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76 | {
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77 | request(path, "POST", data);
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78 | }
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79 | void REST::put(const char* path, const char* data)
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80 | {
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81 | request(path, "PUT", data);
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82 | }
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83 | void REST::del(const char* path, const char* data)
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84 | {
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85 | request(path, "DELETE", data);
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86 | }
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87 |
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88 | /*
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89 | void REST::setHeader(const char* value)
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90 | {
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91 | uint8_t header_index = HEADER_GENERIC;
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92 | uint16_t crc = esp->request(CMD_REST_SETHEADER, 0, 0, 3);
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93 | crc = esp->request(crc,(uint8_t*)&remote_instance, 4);
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94 | crc = esp->request(crc,(uint8_t*)&header_index, 1);
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95 | crc = esp->request(crc,(uint8_t*)value, strlen(value));
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96 | esp->request(crc);
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97 | }
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98 | void REST::setContentType(const char* value)
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99 | {
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100 | uint8_t header_index = HEADER_CONTENT_TYPE;
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101 | uint16_t crc = esp->request(CMD_REST_SETHEADER, 0, 0, 3);
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102 | crc = esp->request(crc,(uint8_t*)&remote_instance, 4);
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103 | crc = esp->request(crc,(uint8_t*)&header_index, 1);
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104 | crc = esp->request(crc,(uint8_t*)value, strlen(value));
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105 | esp->request(crc);
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106 | }
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107 | void REST::setUserAgent(const char* value)
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108 | {
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109 | uint8_t header_index = HEADER_USER_AGENT;
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110 | uint16_t crc = esp->request(CMD_REST_SETHEADER, 0, 0, 3);
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111 | crc = esp->request(crc,(uint8_t*)&remote_instance, 4);
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112 | crc = esp->request(crc,(uint8_t*)&header_index, 1);
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113 | crc = esp->request(crc,(uint8_t*)value, strlen(value));
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114 | esp->request(crc);
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115 | }
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116 | void REST::setTimeout(uint32_t ms)
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117 | {
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118 | timeout = ms;
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119 | }
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120 | */
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121 |
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122 | uint16_t REST::getResponse(char* data, uint16_t maxLen)
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123 | {
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124 | response = false;
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125 | uint32_t wait = millis();
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126 | while(response == false && (millis() - wait < timeout)) {
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127 | esp->process();
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128 | }
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129 | if(response){
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130 | RESPONSE resp(res);
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131 |
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132 | resp.popArgs((uint8_t*)data, maxLen);
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133 | return esp->return_value;
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134 | }
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135 |
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136 |
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137 | return 0;
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138 | }
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