esp_avr_programmer/WebServ.cpp at master · supperbo/esp_avr_programmer · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
#include "Arduino.h"
#include "WebServ.h"
#include <ESP8266WiFi.h>
#include "FS.h"
#include "IntelHexParse.h"
#include "Stk500.h"


WebServ::WebServ(int resetPin) {
  _resetPin = resetPin;
}

void WebServ::WSCmdIndex(WiFiClient* client) {

  SPIFFS.begin();
  File file = SPIFFS.open("/index.htm.gz", "r");

  if(file) {

    int fs = file.size();
    byte buff[1024];
    int i = 0;

    client->print(DefaultHeader(true));
    while(fs > 0) {
      i = (fs < 1024) ? fs : 1024;
      file.read(buff, i);
      client->write((const uint8_t*)buff, i);
      fs -= 1024;
    }
    client->print(DefaultFooter());

  } else {
    String html = HttpSimplePage(F("spiffs error: index.htm not found."));
    PrintPage(client, html);
  }

  file.close();
  SPIFFS.end();
}

void WebServ::WSCmdList(WiFiClient* client) {

  String text = HttpRawText(GetDirList());
  PrintPage(client, text);
}

void WebServ::WSCmdDelete(WiFiClient* client, String filename) {

  SPIFFS.begin();
  SPIFFS.remove(filename);
  SPIFFS.end();

  String text = HttpRawText(GetDirList());
  PrintPage(client, text);
}

void WebServ::WSCmdFlash(WiFiClient* client, String filename) {

  Stk500 stk500(_resetPin);

  SPIFFS.begin();

  File file = SPIFFS.open(filename, "r");

  if(file) {
    stk500.setupDevice();
    IntelHexParse hexParse = IntelHexParse();

    while(file.available()) {

      byte buff[50];
      String data = file.readStringUntil('\n');
      data.getBytes(buff, data.length());
      hexParse.ParseLine(buff);

      if(hexParse.IsPageReady()){
        byte* page = hexParse.GetMemoryPage();
        byte* address = hexParse.GetLoadAddress();
        stk500.flashPage(address, page);
      }
    }
  }

  stk500.exitProgMode();
  file.close();
  SPIFFS.end();
}


void WebServ::WSCmdUpload(WiFiClient* client, String filename) {

  int contentLen = 0;

  while (client->connected()) {
    if (client->available()) {
      String line = client->readStringUntil('\n');

      if(line.startsWith("Content-Length")) {
        contentLen = line.substring(16, (line.length()-1)).toInt();
      }

      if(line.length() == 1 && line[0] == '\r') {

        SPIFFS.begin();
        String path = "/hex/" + filename;
        File file = SPIFFS.open(path, "w+");

        if(file) {
          int i = 0;
          while (i < contentLen) {
            file.write(client->read());
            i++;
          }
          file.close();
        }
        SPIFFS.end();

        delay(10);
        String html = HttpSimplePage("DONE");
        client->println(html);
        delay(10);

        break;
      }
    }
  }
}

int WebServ::GetCommand(String s) {

  if(s.startsWith("GET /files")){
    return httpCmdList;
  } else if (s.startsWith("GET /delete")) {
    return httpCmdDelete;
  } else if (s.startsWith("GET /flash")) {
    return httpCmdFlash;
  } else if (s.startsWith("GET /delete")) {
    return httpCmdDelete;
  } else if (s.startsWith("POST /upload")) {
    return httpCmdUpload;
  } else {
    return httpCmdIndex;
  }

}

String WebServ::GetUrlParam(String s) {

  String param = "";
  if(s.indexOf("&") > -1) {
    int pStart = s.indexOf("&") +1;
    int pEnd = s.indexOf(" ", pStart);
    param = s.substring(pStart, pEnd);
  }

  return param;

}

String WebServ::HttpSimplePage(String text) {

  String html = DefaultHeader(false);
  html += "<!DOCTYPE HTML><html>" + text + "</html>";
  html += DefaultFooter();

  return html;

}

String WebServ::HttpRawText(String text) {

  String html = DefaultHeader(false);
  html +=  text;
  html += DefaultFooter();

  return html;

}


String WebServ::DefaultHeader(bool gzip) {

  if(gzip){
    return String(F("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nContent-Encoding: gzip\r\nAccess-Control-Allow-Origin: *\r\nConnection: close\r\n\r\n"));
  }
  return String(F("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nAccess-Control-Allow-Origin: *\r\nConnection: close\r\n\r\n"));

}

String WebServ::DefaultFooter() {

  return String(F("\r\n"));

}

void WebServ::PrintPage(WiFiClient* client, String page) {
  while (client->connected()) {
    if (client->available()) {
      String line = client->readStringUntil('\r');
      if (line.length() == 1 && line[0] == '\n') {
        client->println(page);
        break;
      }
    }
  }
}

String WebServ::GetDirList() {

  String list = "";
  SPIFFS.begin();
  Dir dir = SPIFFS.openDir("/hex");
  while (dir.next()) {
    list += dir.fileName() + ";";
    File f = dir.openFile("r");
    list += String(f.size()) + ";\n";
  }
  SPIFFS.end();
  return list;
}