update doc, fix duplicate hook, hook spelling

Author: rajumsys

docs/hooks.md

@@ -2,32 +2,30 @@
 SparkPost's WordPress plugin has a number of hooks that can be used to modify how it works and/or inject new functionality around its lifecycle.
 
 ### Convention
-Hook names are prefixed with `wpsp_`.There are some hooks that are common across mailers (http and smtp). Unless the hook applies to both mailer, it has either `smtp_` or `smtp_` after the initial prefix (`wpsp_`).
+Hook names are prefixed with `wpsp_`.
 
 ### List of hooks
 
-| Hook Name                         | Applicable Mailer          | Description (Purpose)  |
-| -------------                     |:----------------:| -----:|
-| wpsp_get_settings                 | Both | Tap into settings objects  
-| wpsp_init_http_mailer*            | HTTP | Modify/replace http mailer instance
-| wpsp_http_get_lib                 | HTTP | Modify/replace http library
-| wpsp_http_before_send*            | HTTP |
-| wpsp_http_after_send*             | HTTP |  
-| wpsp_http_handle_response         | HTTP | Custom handler for http response. **Should return boolean to stop further processing.**
-| wpsp_http_recipients              | HTTP |
-| wpsp_open_tracking                | Both |  
-| wpsp_click_tracking               | Both |
-| wpsp_http_template_id             | HTTP | Use a different template ID
-| wpsp_substitution_content_tag_name| HTTP | Use a different tag for content substitution
-| wpsp_http_body                    | HTTP |  
-| wpsp_http_sender_email            | Both |
-| wpsp_http_sender_name             | Both |
-| wpsp_http_response_body           | HTTP |
-| wpsp_http_recipients              | HTTP |  
-| wpsp_api_key                      | BOTH | Use different API Key/Password
-| wpsp_http_request_headers         | HTTP |
-| wpsp_http_reply_to                | HTTP |
-| spwp_http_body_headers            | HTTP |  
-| wpsp_smtp_msys_api                | SMTP |
+| Hook Name                    | Description (Purpose)
+| -------------                |:----------------:|
+| wpsp_get_settings            | Tap into settings objects  
+| wpsp_init_mailer*            | Modify/replace http mailer instance
+| wpsp_get_http_lib            | Modify/replace http library
+| wpsp_before_send*            |
+| wpsp_after_send*             |  
+| wpsp_handle_response         | Custom handler for http response. **Should return boolean to stop further processing.**
+| wpsp_recipients              |
+| wpsp_open_tracking           |  
+| wpsp_click_tracking          |
+| wpsp_template_id             | Use a different template ID
+| wpsp_substitution_content_tag_name| Use a different tag for content substitution
+| wpsp_sender_email            |
+| wpsp_sender_name             |
+| wpsp_response_body           |
+| wpsp_api_key                 | Use different API Key/Password
+| wpsp_request_headers         |
+| wpsp_reply_to                |
+| wpsp_body_headers            |  
+| wpsp_smtp_msys_api            
 
-\* These are action hooks. So return value is irrelevant. 
+\* These are action hooks. So return value is irrelevant.

mailer.http.class.php

@@ -77,7 +77,7 @@ protected function get_request_body()
         $body = array();
 
         // add recipients
-        $body['recipients'] = apply_filters('wpsp_recipients', $this->get_recipients());
+        $body['recipients'] = $this->get_recipients();
 
         // enable engagement tracking
         $body['options'] = array(
@@ -410,6 +410,6 @@ protected function get_headers()
           $formatted_headers['CC'] = $this->stringify_recipients($cc);
         }
 
-        return apply_filters('spwp_body_headers', $formatted_headers);
+        return apply_filters('wpsp_body_headers', $formatted_headers);
     }
 }