Fix SSL certificate removal with WordOps backend

CHANGELOG.md

@@ -8,9 +8,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### v3.9.x - [Unreleased]
 
+### v3.9.8.5 - 2019-08-29
+
 #### Fixed
 
 - Fix Netdata install on Raspbian 9/10
+- `wo stack remove/purge` confirmation
+- Nginx error after removing a SSL certificate used to secure WordOps backend
 
 ### v3.9.8.4 - 2019-08-28
 

wo/cli/plugins/site_functions.py

@@ -989,8 +989,6 @@ def display_cache_settings(self, data):
                      "page=nginx".format(data['site_name']))
 
 
-
-
 def logwatch(self, logfiles):
     import zlib
     import base64
@@ -1012,8 +1010,8 @@ def logwatch(self, logfiles):
                              'caught exception rendering a new log line in %s'
                              % filename)
 
-    l = logwatch.LogWatcher(logfiles, callback)
-    l.loop()
+    logl = logwatch.LogWatcher(logfiles, callback)
+    logl.loop()
 
 
 def detSitePar(opts):
@@ -1243,10 +1241,19 @@ def removeAcmeConf(self, domain):
                        .format(domain))
         WOFileUtils.rm(self, '/etc/nginx/conf.d/force-ssl-{0}.conf.disabled'
                        .format(domain))
-
-        WOGit.add(self, ["/etc/letsencrypt"],
-                  msg="Deleted {0} "
-                  .format(domain))
+    if WOFileUtils.grepcheck(self, '/var/www/22222/conf/nginx/ssl.conf',
+                             '{0}'.format(domain)):
+        Log.info(self, "Setting back default certificate for WordOps backend")
+        with open("/var/www/22222/conf/nginx/"
+                  "ssl.conf", "w") as ssl_conf_file:
+            ssl_conf_file.write("ssl_certificate "
+                                "/var/www/22222/cert/22222.crt;\n"
+                                "ssl_certificate_key "
+                                "/var/www/22222/cert/22222.key;\n")
+    WOGit.add(self, ["/etc/letsencrypt"],
+              msg="Deleted {0} "
+              .format(domain))
+    WOService.restart_service(self, "nginx")
 
 
 def site_url_https(self, domain):

wo/cli/plugins/stack_pref.py

@@ -460,9 +460,8 @@ def post_pref(self, apt_packages, packages, upgrade=False):
 
                 if not os.path.isfile('{0}22222/conf/nginx/ssl.conf'
                                       .format(ngxroot)):
-
                     with open("/var/www/22222/conf/nginx/"
-                              "ssl.conf", "a") as php_file:
+                              "ssl.conf", "w") as php_file:
                         php_file.write("ssl_certificate "
                                        "/var/www/22222/cert/22222.crt;\n"
                                        "ssl_certificate_key "

wo/core/fileutils.py

@@ -244,6 +244,22 @@ class WOFileUtils():
             Log.error(self, "Unable to Search string {0} in {1}"
                       .format(sstr, fnm))
 
+    def grepcheck(self, fnm, sstr):
+        """
+            Searches for string in file and returns True or False.
+        """
+        try:
+            Log.debug(self, "Finding string {0} to file {1}"
+                      .format(sstr, fnm))
+            for line in open(fnm, encoding='utf-8'):
+                if sstr in line:
+                    return True
+            return False
+        except OSError as e:
+            Log.debug(self, "{0}".format(e.strerror))
+            Log.error(self, "Unable to Search string {0} in {1}"
+                      .format(sstr, fnm))
+
     def rm(self, path):
         """
             Remove files