use a temporary directory to avoid permission problems

config_webrx.py

@@ -236,4 +236,6 @@ google_maps_api_key = ""
 # how long should positions be visible on the map?
 # they will start fading out after half of that
 # in seconds; default: 2 hours
-map_position_retention_time = 2 * 60 * 60
+map_position_retention_time = 2 * 60 * 60
+
+temporary_directory = "/tmp"

csdr.py

@@ -74,6 +74,10 @@ class dsp(object):
         self.unvoiced_quality = 1
         self.modification_lock = threading.Lock()
         self.output = output
+        self.temporary_directory = "/tmp"
+
+    def set_temporary_directory(self, what):
+        self.temporary_directory = what
 
     def chain(self,which):
         chain = ["nc -v 127.0.0.1 {nc_port}"]
@@ -468,7 +472,7 @@ class dsp(object):
         logger.debug(command_base)
 
         #create control pipes for csdr
-        self.pipe_base_path="/tmp/openwebrx_pipe_{myid}_".format(myid=id(self))
+        self.pipe_base_path = "{tmp_dir}/openwebrx_pipe_{myid}_".format(tmp_dir=self.temporary_directory, myid=id(self))
 
         self.try_create_pipes(self.pipe_names, command_base)
 

owrx/source.py

@@ -275,7 +275,7 @@ class SpectrumThread(csdr.output):
 
         self.props = props = self.sdrSource.props.collect(
             "samp_rate", "fft_size", "fft_fps", "fft_voverlap_factor", "fft_compression",
-            "csdr_dynamic_bufsize", "csdr_print_bufsizes", "csdr_through"
+            "csdr_dynamic_bufsize", "csdr_print_bufsizes", "csdr_through", "temporary_directory"
         ).defaults(PropertyManager.getSharedInstance())
 
         self.dsp = dsp = csdr.dsp(self)
@@ -295,6 +295,7 @@ class SpectrumThread(csdr.output):
             props.getProperty("fft_size").wire(dsp.set_fft_size),
             props.getProperty("fft_fps").wire(dsp.set_fft_fps),
             props.getProperty("fft_compression").wire(dsp.set_fft_compression),
+            props.getProperty("temporary_directory").wire(dsp.set_temporary_directory),
             props.collect("samp_rate", "fft_size", "fft_fps", "fft_voverlap_factor").wire(set_fft_averages)
         ]
 
@@ -352,7 +353,7 @@ class DspManager(csdr.output):
         self.localProps = self.sdrSource.getProps().collect(
             "audio_compression", "fft_compression", "digimodes_fft_size", "csdr_dynamic_bufsize",
             "csdr_print_bufsizes", "csdr_through", "digimodes_enable", "samp_rate", "digital_voice_unvoiced_quality",
-            "dmr_filter"
+            "dmr_filter", "temporary_directory"
         ).defaults(PropertyManager.getSharedInstance())
 
         self.dsp = csdr.dsp(self)
@@ -380,7 +381,8 @@ class DspManager(csdr.output):
             self.localProps.getProperty("high_cut").wire(set_high_cut),
             self.localProps.getProperty("mod").wire(self.dsp.set_demodulator),
             self.localProps.getProperty("digital_voice_unvoiced_quality").wire(self.dsp.set_unvoiced_quality),
-            self.localProps.getProperty("dmr_filter").wire(self.dsp.set_dmr_filter)
+            self.localProps.getProperty("dmr_filter").wire(self.dsp.set_dmr_filter),
+            self.localProps.getProperty("temporary_directory").wire(self.dsp.set_temporary_directory)
         ]
 
         self.dsp.set_offset_freq(0)

owrx/wsjt.py

@@ -8,6 +8,7 @@ import os
 from multiprocessing.connection import Pipe
 from owrx.map import Map, LocatorLocation
 import re
+from owrx.config import PropertyManager
 
 import logging
 logger = logging.getLogger(__name__)
@@ -16,6 +17,7 @@ logger = logging.getLogger(__name__)
 class Ft8Chopper(threading.Thread):
     def __init__(self, source):
         self.source = source
+        self.tmp_dir = PropertyManager.getSharedInstance()["temporary_directory"]
         (self.wavefilename, self.wavefile) = self.getWaveFile()
         self.switchingLock = threading.Lock()
         self.scheduler = sched.scheduler(time.time, time.sleep)
@@ -25,7 +27,8 @@ class Ft8Chopper(threading.Thread):
         super().__init__()
 
     def getWaveFile(self):
-        filename = "/tmp/openwebrx-ft8chopper-{id}-{timestamp}.wav".format(
+        filename = "{tmp_dir}/openwebrx-ft8chopper-{id}-{timestamp}.wav".format(
+            tmp_dir = self.tmp_dir,
             id = id(self),
             timestamp = datetime.now().strftime("%Y%m%d-%H%M%S")
         )
@@ -70,7 +73,7 @@ class Ft8Chopper(threading.Thread):
     def decode(self):
         def decode_and_unlink(file):
             #TODO expose decoding quality parameters through config
-            decoder = subprocess.Popen(["jt9", "--ft8", "-d", "3", file], stdout=subprocess.PIPE)
+            decoder = subprocess.Popen(["jt9", "--ft8", "-d", "3", file], stdout=subprocess.PIPE, cwd=self.tmp_dir)
             while True:
                 line = decoder.stdout.readline()
                 if line is None or (isinstance(line, bytes) and len(line) == 0):