Struggling with a socket send problems #16687

sxkod · 2025-02-03T02:33:19Z

sxkod
Feb 3, 2025

Hi all, I am trying to serve a basic web server to download sensor data files and to flush the old data through get requests.

I can see the data getting processed as you can tell from the numerous print statements but the client doesn't receive the page.
Not sure what I am doing wrong. Any help greatly appreciated.

def proc_req(s):
    cmd=""
    args={}
    print("proc=",s)
    for n in s.split('\n'):
        if n.find('?get=')>0:
            print("xgetting ",n)
            paramstr=n[n.find('?get=')+1:]
            if len(paramstr)>0:
                tmpp=paramstr.split('&')
                if len(tmpp)>0: 
                    for m in tmpp:
                        tmpl=m.split('=')
                        args[tmpl[0].strip()]=tmpl[1].strip()
    return act_req(args)

def act_req(cmd):
    print('cmd=',cmd)
    if "get" in cmd:
        if cmd["get"]=="list":
            res=''
            l=os.listdir('ddir')
            print('sending',l)
            for n in l:
                res+=n+'\n'
            print('res=',res)
            return res
        elif cmd["get"]=="file":
            if "fname" in cmd:
                f=open('ddir/'+cmd["fname"])
                x=f.read()
                f.close()
                return x



ssid="mpbaro"
passw="12345678"

ap=network.WLAN(network.AP_IF)
ap.active(True)
ap.config(essid=ssid,password=passw)
while ap.active()==False:
    pass

print(ap.ifconfig())

s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.bind(('',80))
s.listen(5)

while True:
    conn,addr=s.accept()
    req=conn.recv(1024)
    req=req.decode('utf-8')
    res="<html><body>test</body></html>"
    res=proc_req(req)
    res="<html><body>"+str(res)+"</body></html>"
    print("sending out ",res)
    conn.setblocking(True)
    conn.sendall(res)
    time.sleep(0.1)
    conn.close()

And when I connect to the esp32 and request the ?get=list I am getting following print out.

%Run -c $EDITOR_CONTENT

MPY: soft reboot
Warning: I2C(-1, ...) is deprecated, use SoftI2C(...) instead
('192.168.4.1', '255.255.255.0', '192.168.4.1', '0.0.0.0')
proc= GET / HTTP/1.1
Connection: close
User-Agent: Dalvik/2.1.0 (Linux; U; Android 14; SM-S908U1 Build/UP1A.231005.007)
Host: 192.168.4.1
Accept-Encoding: gzip

cmd= {}
sending out None
proc= GET /?get=list HTTP/1.1
Host: 192.168.4.1
Connection: keep-alive
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Mobile Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,/;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9

xgetting GET /?get=list HTTP/1.1
cmd= {'get': 'list HTTP/1.1'}
sending out None
proc= GET /favicon.ico HTTP/1.1
Host: 192.168.4.1
Connection: keep-alive
User-Agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Mobile Safari/537.36
Accept: image/avif,image/webp,image/apng,image/svg+xml,image/,/*;q=0.8
Referer: http://192.168.4.1/?get=list
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9

xgetting Referer: http://192.168.4.1/?get=list
cmd= {'get': 'list'}
sending ['2000_1_1.txt']
res= 2000_1_1.txt

sending out 2000_1_1.txt

I tried with and without setblocking, with and without time.sleep, tried send and sendall.

I am lost.

Thanks

sxkod · 2025-02-03T18:37:03Z

sxkod
Feb 3, 2025
Author

Please ignore. I figured it out.

0 replies

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sxkod
Feb 3, 2025

sxkod
Feb 3, 2025
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