Add dummy filter module.

Currently only fetches filter module and returns 403

diff --git a/Makefile b/Makefile
index 2dad03f62afcc6b9f4be8e0fff4f8f5bb325f1e6..55a83dfd76bff865e7bce8f38084c184b65a1b8f 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2,4 +2,4 @@ setup_hooks:
        ln -s ../../scripts/git-hooks/pre-commit .git/hooks/pre-commit
 
 format:
-       indent ngx_office_hours.c
+       indent *.c

diff --git a/config b/config
new file mode 100644 (file)
index 0000000..e4a10e4
--- /dev/null
+++ b/config
@@ -0,0 +1,24 @@
+#
+# Copyright 2018 Rubén Beltrán del Río
+# 
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the
+# License. You may obtain a copy of the License at
+# 
+# http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations under the License.
+
+ngx_addon_name=ngx_http_office_hours_filter_module
+
+if test -n "$ngx_module_link"; then
+  ngx_module_type=HTTP
+  ngx_module_name=ngx_http_office_hours_filter_module
+  ngx_module_srcs="$ngx_addon_dir/ngx_http_office_hours_filter_module.c"
+
+  . auto/module
+else
+  HTTP_MODULES="$HTTP_MODULES ngx_http_office_hours_filter_module"
+  NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_office_hours_filter_module.c"
+fi

diff --git a/ngx_http_office_hours_filter_module.c b/ngx_http_office_hours_filter_module.c
new file mode 100644 (file)
index 0000000..5234473
--- /dev/null
+++ b/ngx_http_office_hours_filter_module.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2018 Rubén Beltrán del Río
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+
+// Module Config Definitions
+
+typedef struct {
+    ngx_array_t    *office_hours;
+}               ngx_http_office_hours_conf_t;
+
+static void    *ngx_http_office_hours_create_conf(ngx_conf_t * cf);
+static char    *ngx_http_office_hours_merge_conf(ngx_conf_t * cf, void *parent, void *child);
+static ngx_int_t ngx_http_office_hours_init(ngx_conf_t * cf);
+
+static char    *ngx_http_office_hours(ngx_conf_t * cf, ngx_command_t * cmd, void *conf);
+
+//Module Directive Definitions
+
+static ngx_command_t ngx_http_office_hours_commands[] = {
+    {
+        ngx_string("office_hours"),
+        NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_1MORE,
+        ngx_http_office_hours,
+        NGX_HTTP_LOC_CONF_OFFSET,
+        offsetof(ngx_http_office_hours_conf_t, office_hours),
+        NULL
+    },
+
+    ngx_null_command
+};
+
+//Define the module context
+
+static ngx_http_module_t ngx_http_office_hours_filter_module_ctx = {
+    NULL, //Preconfiguration
+    ngx_http_office_hours_init, //Postconfiguration
+
+    NULL, //Create main configuration
+    NULL, //Initialize main configuration
+    NULL, //Create server configuration
+    NULL, //Merge server configuration
+
+    ngx_http_office_hours_create_conf, //Create location configuration
+    ngx_http_office_hours_merge_conf // Merge location configuration
+};
+
+//Define the module
+
+ngx_module_t ngx_http_office_hours_filter_module = {
+    NGX_MODULE_V1, //Module Version
+        & ngx_http_office_hours_filter_module_ctx, //Module context
+        ngx_http_office_hours_commands, //Module commands
+        NGX_HTTP_MODULE, //Module Type
+        NULL, //Initialize Master
+        NULL, //Initialize Module
+        NULL, //Initialize Process
+        NULL, //Initialize Thread
+        NULL, //Exit Thread
+        NULL, //Exit Process
+        NULL, //Exit Master
+        NGX_MODULE_V1_PADDING
+};
+
+
+//Main Body Filter
+
+static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
+
+static          ngx_int_t
+ngx_http_office_hours_body_filter(ngx_http_request_t * r, ngx_chain_t * in) {
+
+ngx_http_office_hours_conf_t *conf;
+ngx_uint_t      i;
+ngx_str_t      *hours;
+
+    conf = ngx_http_get_module_loc_conf(r, ngx_http_office_hours_filter_module);
+
+    if (conf->office_hours == NULL) {
+
+        ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "Within office hours");
+
+        return ngx_http_next_body_filter(r, in);
+    }
+
+    ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "Outside office hours");
+
+    hours = conf->office_hours->elts;
+
+    for (i = 0; i < conf->office_hours->nelts; ++i) {
+        ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, (const char *)hours[i].data);
+    }
+
+    r->keepalive = 0;
+    return NGX_HTTP_FORBIDDEN;
+}
+
+//Read Arguments from config file
+
+static char    *
+ngx_http_office_hours(ngx_conf_t * cf, ngx_command_t * cmd, void *conf) {
+
+char           *conf_structure = conf;
+
+ngx_array_t   **office_hours;
+ngx_str_t      *hours;
+ngx_str_t      *value;
+ngx_uint_t      i;
+
+    //Gets the array from the config structure using the defined
+        // offset, and if the
+        pointer is unset it creates a new one.
+            //
+            //(The first element is the directive itself, so we should be
+            // offset by 1)
+            office_hours = (ngx_array_t **) (conf_structure + cmd->offset);
+
+    if (*office_hours == NGX_CONF_UNSET_PTR) {
+        *office_hours = ngx_array_create(cf->pool, cf->args->nelts - 1,
+            sizeof(ngx_str_t));
+
+        if (*office_hours == NULL) {
+            return NGX_CONF_ERROR;
+        }
+    }
+
+    value = cf->args->elts;
+
+    for (i = 1; i < cf->args->nelts; ++i) {
+
+        hours = ngx_array_push(*office_hours);
+        if (hours == NULL) {
+            return NGX_CONF_ERROR;
+        }
+
+        *hours = value[i];
+    }
+
+    return NGX_CONF_OK;
+}
+
+
+//Initialize the Configuration Object
+
+static void    *
+ngx_http_office_hours_create_conf(ngx_conf_t * cf) {
+
+ngx_http_office_hours_conf_t *conf;
+
+    conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_office_hours_conf_t));
+
+    if (conf == NULL) {
+        return NULL;
+    }
+
+    conf->office_hours = NGX_CONF_UNSET_PTR;
+
+    return conf;
+}
+
+//Merge Config Values
+
+static char    *
+ngx_http_office_hours_merge_conf(ngx_conf_t * cf, void *parent, void *child) {
+
+ngx_http_office_hours_conf_t *prev = parent;
+ngx_http_office_hours_conf_t *conf = child;
+
+    ngx_conf_merge_ptr_value(conf->office_hours, prev->office_hours, NULL);
+
+    return NGX_CONF_OK;
+}
+
+//Postconfig Initialization Handler
+// Sets the request filter at the top of the chain
+
+static ngx_int_t 
+ngx_http_office_hours_init(ngx_conf_t * cf) {
+
+    ngx_http_next_body_filter = ngx_http_top_body_filter;
+    ngx_http_top_body_filter = ngx_http_office_hours_body_filter;
+
+    return NGX_OK;
+}

diff --git a/ngx_office_hours.c b/ngx_office_hours.c
deleted file mode 100644 (file)
index e69de29..0000000