caddy-frontend: Avoid needless double slashing for type:zope

For case if path (for zope) is provided from
/VirtualHostBase/https//example.com:443/zope_path/VirtualHostRoot/url_path
to
/VirtualHostBase/https/example.com:443/zope_path/VirtualHostRoot/url_path

If path (for zope) is not provided from

/VirtualHostBase/http//example.com:443//VirtualHostRoot/url_path
to
/VirtualHostBase/http/example.com:443/VirtualHostRoot/url_path

software/caddy-frontend/buildout.hash.cfg

@@ -46,7 +46,7 @@ md5sum = 88af61e7abbf30dc99a1a2526161128d
 
 [template-default-slave-virtualhost]
 _update_hash_filename_ = templates/default-virtualhost.conf.in
-md5sum = 13cd08d630cc51666a9f7e469fb6ea52
+md5sum = 37475d79f28c5f126bc1947fdb938fdb
 
 [template-backend-haproxy-configuration]
 _update_hash_filename_ = templates/backend-haproxy.cfg.in

software/caddy-frontend/templates/default-virtualhost.conf.in

@@ -2,6 +2,11 @@
 {%- if slave_parameter['prefer-gzip-encoding-to-backend'] %}
 {%- do proxy_append_list.append(('prefer-gzip', 'Proxy which always overrides Accept-Encoding to gzip if such is found')) %}
 {%- endif %} {#- if slave_parameter['prefer-gzip-encoding-to-backend'] #}
+{%- if slave_parameter['path'].strip().strip('/') %}
+{%-   set zope_path = slave_parameter['path'].strip().strip('/') ~ '/' %}
+{%- else %}
+{%-   set zope_path = '' %}
+{%- endif %}
 {%- set http_host_list = [] %}
 {%- set https_host_list = [] %}
 {%- for host in slave_parameter['host_list'] %}
@@ -129,27 +134,27 @@
     regexp (.*)
     if {>Accept-Encoding} match "(^gzip,.*|.*, gzip,.*|.*, gzip$|^gzip$)"
 {%- if tls %}
-    to /prefer-gzip/VirtualHostBase/{scheme}%2F%2F{hostonly}:{{ slave_parameter['virtualhostroot-https-port'] }}%2F{{ slave_parameter['path'] }}%2FVirtualHostRoot/{1}
+    to /prefer-gzip/VirtualHostBase/{scheme}%2F{hostonly}:{{ slave_parameter['virtualhostroot-https-port'] }}%2F{{ zope_path }}VirtualHostRoot/{1}
 {%- else %}
-    to /prefer-gzip/VirtualHostBase/{scheme}%2F%2F{hostonly}:{{ slave_parameter['virtualhostroot-http-port'] }}%2F{{ slave_parameter['path'] }}%2FVirtualHostRoot/{1}
+    to /prefer-gzip/VirtualHostBase/{scheme}%2F{hostonly}:{{ slave_parameter['virtualhostroot-http-port'] }}%2F{{ zope_path }}VirtualHostRoot/{1}
 {%- endif %}
   }
   rewrite {
     regexp (.*)
     if {>Accept-Encoding} not_match "(^gzip,.*|.*, gzip,.*|.*, gzip$|^gzip$)"
 {%- if tls %}
-    to /VirtualHostBase/{scheme}%2F%2F{hostonly}:{{ slave_parameter['virtualhostroot-https-port'] }}%2F{{ slave_parameter['path'] }}%2FVirtualHostRoot/{1}
+    to /VirtualHostBase/{scheme}%2F{hostonly}:{{ slave_parameter['virtualhostroot-https-port'] }}%2F{{ zope_path }}VirtualHostRoot/{1}
 {%- else %}
-    to /VirtualHostBase/{scheme}%2F%2F{hostonly}:{{ slave_parameter['virtualhostroot-http-port'] }}%2F{{ slave_parameter['path'] }}%2FVirtualHostRoot/{1}
+    to /VirtualHostBase/{scheme}%2F{hostonly}:{{ slave_parameter['virtualhostroot-http-port'] }}%2F{{ zope_path }}VirtualHostRoot/{1}
 {%- endif %}
   }
 {%- else %}
   rewrite {
     regexp (.*)
 {%- if tls %}
-    to /VirtualHostBase/{scheme}%2F%2F{hostonly}:{{ slave_parameter['virtualhostroot-https-port'] }}%2F{{ slave_parameter['path'] }}%2FVirtualHostRoot/{1}
+    to /VirtualHostBase/{scheme}%2F{hostonly}:{{ slave_parameter['virtualhostroot-https-port'] }}%2F{{ zope_path }}VirtualHostRoot/{1}
 {%- else %}
-    to /VirtualHostBase/{scheme}%2F%2F{hostonly}:{{ slave_parameter['virtualhostroot-http-port'] }}%2F{{ slave_parameter['path'] }}%2FVirtualHostRoot/{1}
+    to /VirtualHostBase/{scheme}%2F{hostonly}:{{ slave_parameter['virtualhostroot-http-port'] }}%2F{{ zope_path }}VirtualHostRoot/{1}
 {%- endif %}
   } {# rewrite #}
 {%- endif %} {#- if slave_parameter['prefer-gzip-encoding-to-backend'] #}

software/caddy-frontend/test/test.py

@@ -2231,7 +2231,7 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
       result,
       'Path',
       '/VirtualHostBase/'
-      'https//typezopepath.example.com:443/path/to/some/resource'
+      'https/typezopepath.example.com:443/path/to/some/resource'
       '/VirtualHostRoot/'
       'test-path/deeper'
     )
@@ -2793,7 +2793,7 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/https//typezope.example.com:443/'
+      '/VirtualHostBase/https/typezope.example.com:443'
       '/VirtualHostRoot/test-path/deeper'
     )
 
@@ -2833,8 +2833,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/https//'
-      'typezopeprefergzipencodingtobackendhttpsonly.example.com:443/'
+      '/VirtualHostBase/https/'
+      'typezopeprefergzipencodingtobackendhttpsonly.example.com:443'
       '/VirtualHostRoot/test-path/deeper'
     )
 
@@ -2845,8 +2845,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/http//'
-      'typezopeprefergzipencodingtobackendhttpsonly.example.com:80/'
+      '/VirtualHostBase/http/'
+      'typezopeprefergzipencodingtobackendhttpsonly.example.com:80'
       '/VirtualHostRoot/test-path/deeper'
     )
 
@@ -2868,8 +2868,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/https//'
-      'typezopeprefergzipencodingtobackendhttpsonly.example.com:443/'
+      '/VirtualHostBase/https/'
+      'typezopeprefergzipencodingtobackendhttpsonly.example.com:443'
       '/VirtualHostRoot/test-path/deeper'
     )
     self.assertEqual(
@@ -2883,8 +2883,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/http//'
-      'typezopeprefergzipencodingtobackendhttpsonly.example.com:80/'
+      '/VirtualHostBase/http/'
+      'typezopeprefergzipencodingtobackendhttpsonly.example.com:80'
       '/VirtualHostRoot/test-path/deeper'
     )
     self.assertEqual(
@@ -2911,8 +2911,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/https//'
-      'typezopeprefergzipencodingtobackend.example.com:443/'
+      '/VirtualHostBase/https/'
+      'typezopeprefergzipencodingtobackend.example.com:443'
       '/VirtualHostRoot/test-path/deeper'
     )
 
@@ -2949,8 +2949,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/https//'
-      'typezopeprefergzipencodingtobackend.example.com:443/'
+      '/VirtualHostBase/https/'
+      'typezopeprefergzipencodingtobackend.example.com:443'
       '/VirtualHostRoot/test-path/deeper'
     )
     self.assertEqual(
@@ -2982,8 +2982,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/http//typezopevirtualhostroothttpport'
-      '.example.com:12345//VirtualHostRoot/test-path'
+      '/VirtualHostBase/http/typezopevirtualhostroothttpport'
+      '.example.com:12345/VirtualHostRoot/test-path'
     )
 
   def test_type_zope_virtualhostroot_https_port(self):
@@ -3000,8 +3000,8 @@ class TestSlave(SlaveHttpFrontendTestCase, TestDataMixin):
     self.assertEqualResultJson(
       result,
       'Path',
-      '/VirtualHostBase/https//typezopevirtualhostroothttpsport'
-      '.example.com:12345//VirtualHostRoot/test-path'
+      '/VirtualHostBase/https/typezopevirtualhostroothttpsport'
+      '.example.com:12345/VirtualHostRoot/test-path'
     )
 
   def test_type_notebook(self):