Skip to content

Commit e79c3be

Browse files
fhesselfhessel
committed
adjust coding style
1 parent a341caf commit e79c3be

File tree

3 files changed

+240
-198
lines changed

3 files changed

+240
-198
lines changed

‎examples/HTML-Forms/HTML-Forms.ino‎

Lines changed: 175 additions & 171 deletions
Original file line numberDiff line numberDiff line change
@@ -117,7 +117,7 @@ void setup() {
117117
ResourceNode * nodeDirectory = new ResourceNode("/public", "GET", &handleDirectory);
118118
ResourceNode * nodeFile = new ResourceNode("/public/*", "GET", &handleFile);
119119

120-
// 404 node has no URL as it is used for all requests that don't match anything else
120+
// 404 node has no URL as it is used for all requests that don't match anything else
121121
ResourceNode * node404 = new ResourceNode("", "GET", &handle404);
122122

123123
// Add the root nodes to the server
@@ -135,182 +135,186 @@ void setup() {
135135
Serial.println("Starting server...");
136136
secureServer.start();
137137
if (secureServer.isRunning()) {
138-
Serial.println("Server ready.");
138+
Serial.println("Server ready.");
139139
}
140140
}
141141

142142
void loop() {
143-
// This call will let the server do its work
144-
secureServer.loop();
143+
// This call will let the server do its work
144+
secureServer.loop();
145145

146-
// Other code would go here...
147-
delay(1);
146+
// Other code would go here...
147+
delay(1);
148148
}
149149

150150
void handleRoot(HTTPRequest * req, HTTPResponse * res) {
151-
// Status code is 200 OK by default.
152-
// We want to deliver a simple HTML page, so we send a corresponding content type:
153-
res->setHeader("Content-Type", "text/html");
154-
155-
// The response implements the Print interface, so you can use it just like
156-
// you would write to Serial etc.
157-
res->println("<!DOCTYPE html>");
158-
res->println("<html>");
159-
res->println("<head><title>Very simple file server</title></head>");
160-
res->println("<body>");
161-
res->println("<h1>Very simple file server</h1>");
162-
res->println("<p>This is a very simple file server to demonstrate the use of POST forms. </p>");
163-
res->println("<h2>List existing files</h2>");
164-
res->println("<p>See <a href=\"/public\">/public</a> to list existing files and retrieve or edit them.</p>");
165-
res->println("<h2>Upload new file</h2>");
166-
res->println("<p>This form allows you to upload files (text, jpg and png supported best). It demonstrates multipart/form-data.</p>");
167-
res->println("<form method=\"POST\" action=\"/upload\" enctype=\"multipart/form-data\">");
168-
res->println("file: <input type=\"file\" name=\"file\"><br>");
169-
res->println("<input type=\"submit\" value=\"Upload\">");
170-
res->println("</form>");
171-
res->println("</body>");
172-
res->println("</html>");
151+
// Status code is 200 OK by default.
152+
// We want to deliver a simple HTML page, so we send a corresponding content type:
153+
res->setHeader("Content-Type", "text/html");
154+
155+
// The response implements the Print interface, so you can use it just like
156+
// you would write to Serial etc.
157+
res->println("<!DOCTYPE html>");
158+
res->println("<html>");
159+
res->println("<head><title>Very simple file server</title></head>");
160+
res->println("<body>");
161+
res->println("<h1>Very simple file server</h1>");
162+
res->println("<p>This is a very simple file server to demonstrate the use of POST forms. </p>");
163+
res->println("<h2>List existing files</h2>");
164+
res->println("<p>See <a href=\"/public\">/public</a> to list existing files and retrieve or edit them.</p>");
165+
res->println("<h2>Upload new file</h2>");
166+
res->println("<p>This form allows you to upload files (text, jpg and png supported best). It demonstrates multipart/form-data.</p>");
167+
res->println("<form method=\"POST\" action=\"/upload\" enctype=\"multipart/form-data\">");
168+
res->println("file: <input type=\"file\" name=\"file\"><br>");
169+
res->println("<input type=\"submit\" value=\"Upload\">");
170+
res->println("</form>");
171+
res->println("</body>");
172+
res->println("</html>");
173173
}
174174

175175
void handleFormUpload(HTTPRequest * req, HTTPResponse * res) {
176-
// First, we need to check the encoding of the form that we have received.
177-
// The browser will set the Content-Type request header, so we can use it for that purpose.
178-
// Then we select the body parser based on the encoding.
179-
// Actually we do this only for documentary purposes, we know the form is going
180-
// to be multipart/form-data.
181-
HTTPBodyParser *parser;
182-
std::string contentType = req->getHeader("Content-Type");
183-
size_t semicolonPos = contentType.find(";");
184-
if (semicolonPos != std::string::npos) contentType = contentType.substr(0, semicolonPos);
185-
if (contentType == "multipart/form-data") {
186-
parser = new HTTPMultipartBodyParser(req);
187-
} else {
188-
Serial.printf("Unknown POST Content-Type: %s\n", contentType.c_str());
189-
return;
190-
}
191-
// We iterate over the fields. Any field with a filename is uploaded
192-
res->println("<html><head><title>File Upload</title></head><body><h1>File Upload</h1>");
193-
bool didwrite = false;
194-
while(parser->nextField()) {
195-
std::string name = parser->getFieldName();
196-
std::string filename = parser->getFieldFilename();
197-
std::string mimeType = parser->getFieldMimeType();
198-
Serial.printf("handleFormUpload: field name='%s', filename='%s', mimetype='%s'\n", name.c_str(), filename.c_str(), mimeType.c_str());
199-
// Double check that it is what we expect
200-
if (name != "file") {
201-
Serial.println("Skipping unexpected field");
202-
break;
203-
}
204-
// Should check file name validity and all that, but we skip that.
205-
std::string pathname = "/public/" + filename;
206-
File file = SPIFFS.open(pathname.c_str(), "w");
207-
size_t fileLength = 0;
208-
didwrite = true;
209-
while (!parser->endOfField()) {
210-
byte buf[512];
211-
size_t readLength = parser->read(buf, 512);
212-
file.write(buf, readLength);
213-
fileLength += readLength;
214-
}
215-
file.close();
216-
res->printf("<p>Saved %d bytes to %s</p>", (int)fileLength, pathname.c_str());
217-
}
218-
if (!didwrite) res->println("<p>Did not write any file</p>");
219-
res->println("</body></html>");
220-
delete parser;
176+
// First, we need to check the encoding of the form that we have received.
177+
// The browser will set the Content-Type request header, so we can use it for that purpose.
178+
// Then we select the body parser based on the encoding.
179+
// Actually we do this only for documentary purposes, we know the form is going
180+
// to be multipart/form-data.
181+
HTTPBodyParser *parser;
182+
std::string contentType = req->getHeader("Content-Type");
183+
size_t semicolonPos = contentType.find(";");
184+
if (semicolonPos != std::string::npos) {
185+
contentType = contentType.substr(0, semicolonPos);
186+
}
187+
if (contentType == "multipart/form-data") {
188+
parser = new HTTPMultipartBodyParser(req);
189+
} else {
190+
Serial.printf("Unknown POST Content-Type: %s\n", contentType.c_str());
191+
return;
192+
}
193+
// We iterate over the fields. Any field with a filename is uploaded
194+
res->println("<html><head><title>File Upload</title></head><body><h1>File Upload</h1>");
195+
bool didwrite = false;
196+
while(parser->nextField()) {
197+
std::string name = parser->getFieldName();
198+
std::string filename = parser->getFieldFilename();
199+
std::string mimeType = parser->getFieldMimeType();
200+
Serial.printf("handleFormUpload: field name='%s', filename='%s', mimetype='%s'\n", name.c_str(), filename.c_str(), mimeType.c_str());
201+
// Double check that it is what we expect
202+
if (name != "file") {
203+
Serial.println("Skipping unexpected field");
204+
break;
205+
}
206+
// Should check file name validity and all that, but we skip that.
207+
std::string pathname = "/public/" + filename;
208+
File file = SPIFFS.open(pathname.c_str(), "w");
209+
size_t fileLength = 0;
210+
didwrite = true;
211+
while (!parser->endOfField()) {
212+
byte buf[512];
213+
size_t readLength = parser->read(buf, 512);
214+
file.write(buf, readLength);
215+
fileLength += readLength;
216+
}
217+
file.close();
218+
res->printf("<p>Saved %d bytes to %s</p>", (int)fileLength, pathname.c_str());
219+
}
220+
if (!didwrite) {
221+
res->println("<p>Did not write any file</p>");
222+
}
223+
res->println("</body></html>");
224+
delete parser;
221225
}
222226

223227
void handleFormEdit(HTTPRequest * req, HTTPResponse * res) {
224228
if (req->getMethod() == "GET") {
225-
// Initial request. Get filename from request parameters and return form.
226-
auto params = req->getParams();
227-
std::string filename;
228-
bool hasFilename = params->getQueryParameter("filename", filename);
229-
std::string pathname = std::string("/public/") + filename;
230-
res->println("<html><head><title>Edit File</title><head><body>");
231-
File file = SPIFFS.open(pathname.c_str());
232-
if (!hasFilename) {
233-
res->println("<p>No filename specified.</p>");
234-
} else
235-
if (!file.available()) {
236-
res->printf("<p>File not found: %s</p>\n", pathname.c_str());
237-
} else {
238-
res->printf("<h2>Edit content of %s</h2>\n", pathname.c_str());
239-
res->println("<form method=\"POST\" enctype=\"application/x-www-form-urlencoded\">");
240-
res->printf("<input name=\"filename\" type=\"hidden\" value=\"%s\">", filename.c_str());
241-
res->print("<textarea name=\"content\" rows=\"24\" cols=\"80\">");
242-
// Read the file and write it to the response
243-
size_t length = 0;
244-
do {
245-
char buffer[256];
246-
length = file.read((uint8_t *)buffer, 256);
247-
std::string bufferString(buffer, length);
248-
bufferString = htmlEncode(bufferString);
249-
res->write((uint8_t *)bufferString.c_str(), bufferString.size());
250-
} while (length > 0);
251-
res->println("</textarea><br>");
252-
res->println("<input type=\"submit\" value=\"Save\">");
253-
res->println("</form>");
254-
}
255-
res->println("</body></html>");
256-
} else {
257-
// Assume POST request. Contains submitted data.
258-
res->println("<html><head><title>File Edited</title><head><body><h1>File Edited</h1>");
259-
HTTPURLEncodedBodyParser parser(req);
260-
std::string filename;
261-
bool savedFile = false;
262-
while(parser.nextField()) {
263-
std::string name = parser.getFieldName();
264-
if (name == "filename") {
265-
char buf[512];
266-
size_t readLength = parser.read((byte *)buf, 512);
267-
filename = std::string("/public/") + std::string(buf, readLength);
268-
} else
269-
if (name == "content") {
270-
if (filename == "") {
271-
res->println("<p>Error: form contained content before filename.</p>");
272-
break;
273-
}
274-
size_t fieldLength = 0;
275-
File file = SPIFFS.open(filename.c_str(), "w");
276-
savedFile = true;
277-
while (!parser.endOfField()) {
278-
byte buf[512];
279-
size_t readLength = parser.read(buf, 512);
280-
file.write(buf, readLength);
281-
fieldLength += readLength;
282-
}
283-
file.close();
284-
res->printf("<p>Saved %d bytes to %s</p>", int(fieldLength), filename.c_str());
285-
} else {
286-
res->printf("<p>Unexpected field %s</p>", name.c_str());
287-
}
288-
}
289-
if (!savedFile) res->println("<p>No file to save...</p>");
290-
res->println("</body></html>");
229+
// Initial request. Get filename from request parameters and return form.
230+
auto params = req->getParams();
231+
std::string filename;
232+
bool hasFilename = params->getQueryParameter("filename", filename);
233+
std::string pathname = std::string("/public/") + filename;
234+
res->println("<html><head><title>Edit File</title><head><body>");
235+
File file = SPIFFS.open(pathname.c_str());
236+
if (!hasFilename) {
237+
res->println("<p>No filename specified.</p>");
238+
} else if (!file.available()) {
239+
res->printf("<p>File not found: %s</p>\n", pathname.c_str());
240+
} else {
241+
res->printf("<h2>Edit content of %s</h2>\n", pathname.c_str());
242+
res->println("<form method=\"POST\" enctype=\"application/x-www-form-urlencoded\">");
243+
res->printf("<input name=\"filename\" type=\"hidden\" value=\"%s\">", filename.c_str());
244+
res->print("<textarea name=\"content\" rows=\"24\" cols=\"80\">");
245+
// Read the file and write it to the response
246+
size_t length = 0;
247+
do {
248+
char buffer[256];
249+
length = file.read((uint8_t *)buffer, 256);
250+
std::string bufferString(buffer, length);
251+
bufferString = htmlEncode(bufferString);
252+
res->write((uint8_t *)bufferString.c_str(), bufferString.size());
253+
} while (length > 0);
254+
res->println("</textarea><br>");
255+
res->println("<input type=\"submit\" value=\"Save\">");
256+
res->println("</form>");
257+
}
258+
res->println("</body></html>");
259+
} else { // method != GET
260+
// Assume POST request. Contains submitted data.
261+
res->println("<html><head><title>File Edited</title><head><body><h1>File Edited</h1>");
262+
HTTPURLEncodedBodyParser parser(req);
263+
std::string filename;
264+
bool savedFile = false;
265+
while(parser.nextField()) {
266+
std::string name = parser.getFieldName();
267+
if (name == "filename") {
268+
char buf[512];
269+
size_t readLength = parser.read((byte *)buf, 512);
270+
filename = std::string("/public/") + std::string(buf, readLength);
271+
} else if (name == "content") {
272+
if (filename == "") {
273+
res->println("<p>Error: form contained content before filename.</p>");
274+
break;
275+
}
276+
size_t fieldLength = 0;
277+
File file = SPIFFS.open(filename.c_str(), "w");
278+
savedFile = true;
279+
while (!parser.endOfField()) {
280+
byte buf[512];
281+
size_t readLength = parser.read(buf, 512);
282+
file.write(buf, readLength);
283+
fieldLength += readLength;
284+
}
285+
file.close();
286+
res->printf("<p>Saved %d bytes to %s</p>", int(fieldLength), filename.c_str());
287+
} else {
288+
res->printf("<p>Unexpected field %s</p>", name.c_str());
289+
}
290+
}
291+
if (!savedFile) {
292+
res->println("<p>No file to save...</p>");
293+
}
294+
res->println("</body></html>");
291295
}
292296
}
293297

294298
void handleDirectory(HTTPRequest * req, HTTPResponse * res) {
295299
res->println("<html><head><title>File Listing</title><head><body>");
296300
File d = SPIFFS.open("/public");
297301
if (!d.isDirectory()) {
298-
res->println("<p>No files found.</p>");
302+
res->println("<p>No files found.</p>");
299303
} else {
300-
res->println("<h1>File Listing</h1>");
301-
res->println("<ul>");
302-
File f = d.openNextFile();
303-
while (f) {
304-
std::string pathname(f.name());
305-
res->printf("<li><a href=\"%s\">%s</a>", pathname.c_str(), pathname.c_str());
306-
if (pathname.rfind(".txt") != std::string::npos) {
307-
std::string filename = pathname.substr(8); // Remove /public/
308-
res->printf(" <a href=\"/edit?filename=%s\">[edit]</a>", filename.c_str());
309-
}
310-
res->println("</li>");
311-
f = d.openNextFile();
312-
}
313-
res->println("</ul>");
304+
res->println("<h1>File Listing</h1>");
305+
res->println("<ul>");
306+
File f = d.openNextFile();
307+
while (f) {
308+
std::string pathname(f.name());
309+
res->printf("<li><a href=\"%s\">%s</a>", pathname.c_str(), pathname.c_str());
310+
if (pathname.rfind(".txt") != std::string::npos) {
311+
std::string filename = pathname.substr(8); // Remove /public/
312+
res->printf(" <a href=\"/edit?filename=%s\">[edit]</a>", filename.c_str());
313+
}
314+
res->println("</li>");
315+
f = d.openNextFile();
316+
}
317+
res->println("</ul>");
314318
}
315319
res->println("</body></html>");
316320
}
@@ -353,21 +357,21 @@ void handleFile(HTTPRequest * req, HTTPResponse * res) {
353357
}
354358

355359
void handle404(HTTPRequest * req, HTTPResponse * res) {
356-
// Discard request body, if we received any
357-
// We do this, as this is the default node and may also server POST/PUT requests
358-
req->discardRequestBody();
359-
360-
// Set the response status
361-
res->setStatusCode(404);
362-
res->setStatusText("Not Found");
363-
364-
// Set content type of the response
365-
res->setHeader("Content-Type", "text/html");
366-
367-
// Write a tiny HTML page
368-
res->println("<!DOCTYPE html>");
369-
res->println("<html>");
370-
res->println("<head><title>Not Found</title></head>");
371-
res->println("<body><h1>404 Not Found</h1><p>The requested resource was not found on this server.</p></body>");
372-
res->println("</html>");
360+
// Discard request body, if we received any
361+
// We do this, as this is the default node and may also server POST/PUT requests
362+
req->discardRequestBody();
363+
364+
// Set the response status
365+
res->setStatusCode(404);
366+
res->setStatusText("Not Found");
367+
368+
// Set content type of the response
369+
res->setHeader("Content-Type", "text/html");
370+
371+
// Write a tiny HTML page
372+
res->println("<!DOCTYPE html>");
373+
res->println("<html>");
374+
res->println("<head><title>Not Found</title></head>");
375+
res->println("<body><h1>404 Not Found</h1><p>The requested resource was not found on this server.</p></body>");
376+
res->println("</html>");
373377
}

0 commit comments

Comments
 (0)