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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| """ | ||
| -------------------------------------------------------------------------- | ||
| Octavo Systems - OSD33MP157c-BRK Demo | ||
| -------------------------------------------------------------------------- | ||
| License: | ||
| Copyright 2020 - Octavo Systems LLC | ||
| Redistribution and use in source and binary forms, with or without | ||
| modification, are permitted provided that the following conditions are met: | ||
| 1. Redistributions of source code must retain the above copyright notice, | ||
| this list of conditions and the following disclaimer. | ||
| 2. Redistributions in binary form must reproduce the above copyright notice, | ||
| this list of conditions and the following disclaimer in the documentation | ||
| and/or other materials provided with the distribution. | ||
| 3. Neither the name of the copyright holder nor the names of its contributors | ||
| may be used to endorse or promote products derived from this software without | ||
| specific prior written permission. | ||
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
| FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| -------------------------------------------------------------------------- | ||
| This file was modifed from the tutorial found here: | ||
| https://www.e-tinkers.com/2018/04/how-to-control-raspberry-pi-gpio-via-http-web-server/ | ||
| It is a simple webserver used to display a single page and interact with the I/O | ||
| -------------------------------------------------------------------------- | ||
| """ | ||
| import os | ||
| from http.server import BaseHTTPRequestHandler, HTTPServer | ||
| from urllib.parse import urlparse, parse_qs | ||
|
|
||
| #the actual hardware interface | ||
| import brkLed | ||
|
|
||
| host_name = '' # bind to all interfaces | ||
| host_port = 8080 | ||
|
|
||
|
|
||
| class MyServer(BaseHTTPRequestHandler): | ||
| """ A special implementation of BaseHTTPRequestHander for reading data from | ||
| and control GPIO of the OSD32MP1-BRK | ||
| """ | ||
|
|
||
| def do_HEAD(self): | ||
| """ do_HEAD() can be tested use curl command | ||
| 'curl -I http://server-ip-address:port' | ||
| """ | ||
| self.send_response(200) | ||
| self.send_header('Content-type', 'text/html') | ||
| self.end_headers() | ||
|
|
||
| def _redirect(self, path): | ||
| self.send_response(303) | ||
| self.send_header('Content-type', 'text/html') | ||
| self.send_header('Location', path) | ||
| self.end_headers() | ||
|
|
||
| def do_GET(self): | ||
| """ do_GET() can be tested using curl command | ||
| 'curl http://server-ip-address:port' | ||
| """ | ||
| # load the HTML template | ||
| html = self.fileToStr('ledTemplate.html') | ||
| # get the status of the D1 Green LED | ||
| d1g_status = brkLed.ledStatus("d1g") | ||
| d1g_disabled = self.setDisabled(d1g_status) | ||
|
|
||
| # get the status of the D1 RED LED | ||
| d1r_status = brkLed.ledStatus("d1r") | ||
| d1r_disabled = self.setDisabled(d1r_status) | ||
|
|
||
| # get the status of the D2 Green LED | ||
| d2g_status = brkLed.ledStatus("d2g") | ||
| d2g_disabled = self.setDisabled(d2g_status) | ||
|
|
||
| self.do_HEAD() | ||
| #return the completed template | ||
| self.wfile.write(html.format(**locals()).encode("utf-8")) | ||
|
|
||
| def fileToStr(self, fileName): | ||
| """Return a string containing the contents of the named file.""" | ||
| fin = open(fileName); | ||
| contents = fin.read(); | ||
| fin.close() | ||
| return contents | ||
|
|
||
| def setDisabled(self, status): | ||
| """ | ||
| returns a list to diable the appropriate button based on the status | ||
| :param status: that current status | ||
| :return: a list with the appropraite strings to disable the correct button given the status | ||
| """ | ||
| if status =="OFF": | ||
| return ["disabled", "", ""] | ||
| if status == "ON": | ||
| return ["", "disabled", ""] | ||
| if status =="FLASHING": | ||
| return ["", "", "disabled"] | ||
|
|
||
| def do_POST(self): | ||
| """ do_POST() can be tested using curl command | ||
| 'curl -d "submit=On" http://server-ip-address:port' | ||
| """ | ||
| #get the POST agruments and parse them | ||
| content_length = int(self.headers['Content-Length']) # Get the size of data | ||
| post_data = self.rfile.read(content_length).decode("utf-8") # Get the data | ||
| post_data = parse_qs(post_data) | ||
|
|
||
| #pass the appropriate parameters based on which button was pressed | ||
| if "d1g" in post_data: | ||
| brkLed.ledSET("d1g", post_data["d1g"][0].lower()) | ||
| elif "d1r" in post_data: | ||
| brkLed.ledSET("d1r", post_data["d1r"][0].lower()) | ||
| elif "d2g" in post_data: | ||
| brkLed.ledSET("d2g", post_data["d2g"][0].lower()) | ||
|
|
||
| self._redirect('/') # Redirect back to the root url''' | ||
|
|
||
| if __name__ == '__main__': | ||
| #Reset all of the LEDs | ||
| brkLed.ledRest() | ||
|
|
||
| http_server = HTTPServer((host_name, host_port), MyServer) | ||
| print("Server Starts - %s:%s" % (host_name, host_port)) | ||
|
|
||
| try: | ||
| http_server.serve_forever() | ||
| except KeyboardInterrupt: | ||
| http_server.server_close() | ||
|
|
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