GEVCUWeb/WebServer.cpp at master · neuweiler/GEVCUWeb · 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
/*
 * WebServer.cpp
 *
 Copyright (c) 2020 Michael Neuweiler

 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
 "Software"), to deal in the Software without restriction, including
 without limitation the rights to use, copy, modify, merge, publish,
 distribute, sublicense, and/or sell copies of the Software, and to
 permit persons to whom the Software is furnished to do so, subject to
 the following conditions:

 The above copyright notice and this permission notice shall be included
 in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 */

#include "WebServer.h"

WebServer webServer;

const char *WebServer::MIME_TYPE_JSON = "application/json";

WebServer::WebServer() {
	uploadPath = "";
	server = new AsyncWebServer(80);
}

WebServer::~WebServer() {
	if (server) {
		free(server);
		server = NULL;
	}
}

void handleFileUpload(AsyncWebServerRequest *request, const String &filename, size_t index, uint8_t *data, size_t len,
		bool final) {
	webServer.handleUpload(request, filename, index, data, len, final);
}

void WebServer::init() {
	server->on("/config", HTTP_GET, [](AsyncWebServerRequest *request) {
		request->send(*fsHandler.getFS(), "/config", MIME_TYPE_JSON, false, [](const String &key) {
			return gevcuAdapter.getConfigParameter(key);
		});
	});

	server->on("/saveConfig", HTTP_POST | HTTP_GET, [](AsyncWebServerRequest *request) {
		size_t paramCount = request->params();
		for (int i = 0; i < paramCount; i++) {
			AsyncWebParameter *param = request->getParam(i);
			if (logger.isDebug()) {
				logger.debug("input param: %s = %s", param->name().c_str(), param->value());
			}
			gevcuAdapter.setConfigParameter(param->name(), param->value());
		}
		request->redirect("/settings/index.html");
	});

	server->on("/log", HTTP_GET, [](AsyncWebServerRequest *request) {
		request->send(200, "text/html", gevcuAdapter.getLog());
	});

	server->on("/list", HTTP_GET, [](AsyncWebServerRequest *request) {
		String path = (request->hasArg("dir") ? request->arg("dir") : "/");
		String list = webServer.fileList(path);
		request->send(200, "text/html", list);
	});

	server->on("/upload", HTTP_POST, [](AsyncWebServerRequest *request) {
		request->redirect("/list?dir=" + webServer.getUploadPath());
	}, handleFileUpload);
	server->onFileUpload(handleFileUpload);

	server->on("/delete", HTTP_GET, [](AsyncWebServerRequest *request) {
		String file = (request->hasArg("file") ? request->arg("file") : "");
		if (file.length() > 0) {
			webServer.deleteFile(file);
		}
		request->redirect("/list?dir=" + webServer.getUploadPath());
	});

	server->serveStatic("/", *fsHandler.getFS(), "/").setDefaultFile("index.html");
	server->begin();

	logger.info("HTTP server started, use http://%s.local", config.wifiHostname);
}

void WebServer::handleUpload(AsyncWebServerRequest *request, const String &filename, size_t index, uint8_t *data,
		size_t len, bool final) {
	if (!index) {
		logger.info("UploadStart: %s/%s", uploadPath.c_str(), filename.c_str());
		uploadFile = fsHandler.getFS()->open(uploadPath + "/" + filename, FILE_WRITE);
	}
	uploadFile.write(data, len);
	if (final) {
		logger.info("UploadEnd: %s/%s (%d)", uploadPath.c_str(), filename.c_str(), index + len);
		uploadFile.close();
	}
}

String WebServer::fileList(String path) {
	uploadPath = path;
	File root = fsHandler.getFS()->open(path);
	String output = "<html><body><table>";
	if (path.length() > 1) {
		String parent = uploadPath.substring(0, uploadPath.lastIndexOf('/'));
		if (parent.length() == 0) {
			parent = "/";
		}
		output += "<tr><td colspan='4'><a href='/list?dir=" + parent + "'>..</a></td></tr>";
	}
	if (root.isDirectory()) {
		File file = root.openNextFile();
		while (file) {
			time_t time = file.getLastWrite();
			String prefix = (file.isDirectory() ? "/list?dir=/" : "");
			const char *name = file.name() + 1;
			output += "<tr>";
			output += "<td><a href='" + prefix + name + "'>" + name + "</a></td>";
			output += "<td style='text-align: right;'>" + (file.isDirectory() ? "(dir)" : String(file.size()))
					+ "</td>";
			output += "<td style='text-align: right;'>" + String(ctime(&time)) + "</td>";
			output += "<td><a href='/delete?file=/" + (String) name + "'>delete</a></td>";
			output += "</tr>";
			file = root.openNextFile();
		}
	}
	output += "</table>";
	output += "<form action='/upload' method='post' enctype='multipart/form-data'>";
	output += "Upload File: <input type='file' id='uploadFile' name='filename'>";
	output += "<input type='submit'>";
	output += "</form>";
	output += "</body></html>";

	return output;
}

void WebServer::deleteFile(String file) {
	logger.info("delete: %s", file.c_str());
	if (!fsHandler.getFS()->remove(file)) {
		fsHandler.getFS()->rmdir(file);
	}
}

AsyncWebServer* WebServer::getWebServer() {
	return server;
}

String WebServer::getUploadPath() {
	return this->uploadPath;
}