System Console: Email notification content setting (#7122)

* PLT-7195: Added new config option, new license feature, and config UI to system console. Still need to implement behaviour change in email batching code

* PLT-7195: Modified batch emails to respect email notification content type setting

* PLT-7195: Tweaking the colours a bit

* PLT-7195: Added support for email notification content type setting in immediate (non-batched) notification messages. Attempted to clean up the code somewhat. Unit tests coming in a future commit

* PLT-7195: Added unit tests for non-batched emails

* Checked license when applying email content settings

* Changed return type of getFormattedPostTime

4 files changed, 61 insertions, 27 deletions

diff --git a/model/config.go b/model/config.go
index 5b0916cd3..55fe8490b 100644
--- a/model/config.go
+++ b/model/config.go
@@ -66,6 +66,9 @@ const (
 	EMAIL_BATCHING_BUFFER_SIZE = 256
 	EMAIL_BATCHING_INTERVAL    = 30
 
+	EMAIL_NOTIFICATION_CONTENTS_FULL    = "full"
+	EMAIL_NOTIFICATION_CONTENTS_GENERIC = "generic"
+
 	SITENAME_MAX_LENGTH = 30
 
 	SERVICE_SETTINGS_DEFAULT_SITE_URL        = ""
@@ -284,6 +287,7 @@ type EmailSettings struct {
 	EmailBatchingBufferSize           *int
 	EmailBatchingInterval             *int
 	SkipServerCertificateVerification *bool
+	EmailNotificationContentsType     *string
 }
 
 type RateLimitSettings struct {
@@ -819,6 +823,11 @@ func (o *Config) SetDefaults() {
 		*o.EmailSettings.SkipServerCertificateVerification = false
 	}
 
+	if o.EmailSettings.EmailNotificationContentsType == nil {
+		o.EmailSettings.EmailNotificationContentsType = new(string)
+		*o.EmailSettings.EmailNotificationContentsType = EMAIL_NOTIFICATION_CONTENTS_FULL
+	}
+
 	if !IsSafeLink(o.SupportSettings.TermsOfServiceLink) {
 		*o.SupportSettings.TermsOfServiceLink = SUPPORT_SETTINGS_DEFAULT_TERMS_OF_SERVICE_LINK
 	}
@@ -1550,6 +1559,10 @@ func (o *Config) IsValid() *AppError {
 		return NewLocAppError("Config.IsValid", "model.config.is_valid.email_batching_interval.app_error", nil, "")
 	}
 
+	if !(*o.EmailSettings.EmailNotificationContentsType == EMAIL_NOTIFICATION_CONTENTS_FULL || *o.EmailSettings.EmailNotificationContentsType == EMAIL_NOTIFICATION_CONTENTS_GENERIC) {
+		return NewLocAppError("Config.IsValid", "model.config.is_valid.email_notification_contents_type.app_error", nil, "")
+	}
+
 	if o.RateLimitSettings.MemoryStoreSize <= 0 {
 		return NewLocAppError("Config.IsValid", "model.config.is_valid.rate_mem.app_error", nil, "")
 	}
diff --git a/model/config_test.go b/model/config_test.go
index 62a77c133..1a944710f 100644
--- a/model/config_test.go
+++ b/model/config_test.go
@@ -15,3 +15,12 @@ func TestConfigDefaultFileSettingsDirectory(t *testing.T) {
 		t.Fatal("FileSettings.Directory should default to './data/'")
 	}
 }
+
+func TestConfigDefaultEmailNotificationContentsType(t *testing.T) {
+	c1 := Config{}
+	c1.SetDefaults()
+
+	if *c1.EmailSettings.EmailNotificationContentsType != EMAIL_NOTIFICATION_CONTENTS_FULL {
+		t.Fatal("EmailSettings.EmailNotificationContentsType should default to 'full'")
+	}
+}
diff --git a/model/license.go b/model/license.go
index 8d53bd4cd..ea1089723 100644
--- a/model/license.go
+++ b/model/license.go
@@ -37,39 +37,42 @@ type Customer struct {
 }
 
 type Features struct {
-	Users                *int  `json:"users"`
-	LDAP                 *bool `json:"ldap"`
-	MFA                  *bool `json:"mfa"`
-	GoogleOAuth          *bool `json:"google_oauth"`
-	Office365OAuth       *bool `json:"office365_oauth"`
-	Compliance           *bool `json:"compliance"`
-	Cluster              *bool `json:"cluster"`
-	Metrics              *bool `json:"metrics"`
-	CustomBrand          *bool `json:"custom_brand"`
-	MHPNS                *bool `json:"mhpns"`
-	SAML                 *bool `json:"saml"`
-	PasswordRequirements *bool `json:"password_requirements"`
-	Elasticsearch        *bool `json:"elastic_search"`
-	Announcement         *bool `json:"announcement"`
+	Users                     *int  `json:"users"`
+	LDAP                      *bool `json:"ldap"`
+	MFA                       *bool `json:"mfa"`
+	GoogleOAuth               *bool `json:"google_oauth"`
+	Office365OAuth            *bool `json:"office365_oauth"`
+	Compliance                *bool `json:"compliance"`
+	Cluster                   *bool `json:"cluster"`
+	Metrics                   *bool `json:"metrics"`
+	CustomBrand               *bool `json:"custom_brand"`
+	MHPNS                     *bool `json:"mhpns"`
+	SAML                      *bool `json:"saml"`
+	PasswordRequirements      *bool `json:"password_requirements"`
+	Elasticsearch             *bool `json:"elastic_search"`
+	Announcement              *bool `json:"announcement"`
+	EmailNotificationContents *bool `json:"email_notification_contents"`
+
 	// after we enabled more features for webrtc we'll need to control them with this
 	FutureFeatures *bool `json:"future_features"`
 }
 
 func (f *Features) ToMap() map[string]interface{} {
 	return map[string]interface{}{
-		"ldap":           *f.LDAP,
-		"mfa":            *f.MFA,
-		"google":         *f.GoogleOAuth,
-		"office365":      *f.Office365OAuth,
-		"compliance":     *f.Compliance,
-		"cluster":        *f.Cluster,
-		"metrics":        *f.Metrics,
-		"custom_brand":   *f.CustomBrand,
-		"mhpns":          *f.MHPNS,
-		"saml":           *f.SAML,
-		"password":       *f.PasswordRequirements,
-		"elastic_search": *f.Elasticsearch,
-		"future":         *f.FutureFeatures,
+		"ldap":                        *f.LDAP,
+		"mfa":                         *f.MFA,
+		"google":                      *f.GoogleOAuth,
+		"office365":                   *f.Office365OAuth,
+		"compliance":                  *f.Compliance,
+		"cluster":                     *f.Cluster,
+		"metrics":                     *f.Metrics,
+		"custom_brand":                *f.CustomBrand,
+		"mhpns":                       *f.MHPNS,
+		"saml":                        *f.SAML,
+		"password":                    *f.PasswordRequirements,
+		"elastic_search":              *f.Elasticsearch,
+		"email_notification_contents": *f.EmailNotificationContents,
+		"future":                      *f.FutureFeatures,
 	}
 }
 
@@ -148,6 +151,11 @@ func (f *Features) SetDefaults() {
 		f.Announcement = new(bool)
 		*f.Announcement = true
 	}
+
+	if f.EmailNotificationContents == nil {
+		f.EmailNotificationContents = new(bool)
+		*f.EmailNotificationContents = *f.FutureFeatures
+	}
 }
 
 func (l *License) IsExpired() bool {
diff --git a/model/license_test.go b/model/license_test.go
index 952ab493e..2338c9b93 100644
--- a/model/license_test.go
+++ b/model/license_test.go
@@ -27,6 +27,7 @@ func TestLicenseFeaturesToMap(t *testing.T) {
 	CheckTrue(t, m["password"].(bool))
 	CheckTrue(t, m["elastic_search"].(bool))
 	CheckTrue(t, m["future"].(bool))
+	CheckTrue(t, m["email_notification_contents"].(bool))
 }
 
 func TestLicenseFeaturesSetDefaults(t *testing.T) {
@@ -46,6 +47,7 @@ func TestLicenseFeaturesSetDefaults(t *testing.T) {
 	CheckTrue(t, *f.SAML)
 	CheckTrue(t, *f.PasswordRequirements)
 	CheckTrue(t, *f.Elasticsearch)
+	CheckTrue(t, *f.EmailNotificationContents)
 	CheckTrue(t, *f.FutureFeatures)
 
 	f = Features{}
@@ -65,6 +67,7 @@ func TestLicenseFeaturesSetDefaults(t *testing.T) {
 	*f.SAML = true
 	*f.PasswordRequirements = true
 	*f.Elasticsearch = true
+	*f.EmailNotificationContents = true
 
 	f.SetDefaults()
 
@@ -81,6 +84,7 @@ func TestLicenseFeaturesSetDefaults(t *testing.T) {
 	CheckTrue(t, *f.SAML)
 	CheckTrue(t, *f.PasswordRequirements)
 	CheckTrue(t, *f.Elasticsearch)
+	CheckTrue(t, *f.EmailNotificationContents)
 	CheckFalse(t, *f.FutureFeatures)
 }