feat(scan): WordPress Vulnerability Scan (core, plugin, theme) (#769)

https://github.com/future-architect/vuls/pull/769

models/wordpress.go

@@ -0,0 +1,88 @@
+/* Vuls - Vulnerability Scanner
+Copyright (C) 2016  Future Corporation , Japan.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package models
+
+// WordPressPackages has Core version, plugins and themes.
+type WordPressPackages []WpPackage
+
+// CoreVersion returns the core version of the installed WordPress
+func (w WordPressPackages) CoreVersion() string {
+	for _, p := range w {
+		if p.Type == WPCore {
+			return p.Version
+		}
+	}
+	return ""
+}
+
+// Plugins returns a slice of plugins of the installed WordPress
+func (w WordPressPackages) Plugins() (ps []WpPackage) {
+	for _, p := range w {
+		if p.Type == WPPlugin {
+			ps = append(ps, p)
+		}
+	}
+	return
+}
+
+// Themes returns a slice of themes of the installed WordPress
+func (w WordPressPackages) Themes() (ps []WpPackage) {
+	for _, p := range w {
+		if p.Type == WPTheme {
+			ps = append(ps, p)
+		}
+	}
+	return
+}
+
+// Find searches by specified name
+func (w WordPressPackages) Find(name string) (ps *WpPackage, found bool) {
+	for _, p := range w {
+		if p.Name == name {
+			return &p, true
+		}
+	}
+	return nil, false
+}
+
+const (
+	// WPCore is a type `core` in WPPackage struct
+	WPCore = "core"
+	// WPPlugin is a type `plugin` in WPPackage struct
+	WPPlugin = "plugin"
+	// WPTheme is a type `theme` in WPPackage struct
+	WPTheme = "theme"
+
+	// Inactive is a inactive status in WPPackage struct
+	Inactive = "inactive"
+)
+
+// WpPackage has a details of plugin and theme
+type WpPackage struct {
+	Name    string `json:"name,omitempty"`
+	Status  string `json:"status,omitempty"` // active, inactive or must-use
+	Update  string `json:"update,omitempty"` // available or none
+	Version string `json:"version,omitempty"`
+	Type    string `json:"type,omitempty"` // core, plugin, theme
+}
+
+// WpPackageFixStatus is used in Vulninfo.WordPress
+type WpPackageFixStatus struct {
+	Name    string `json:"name,omitempty"`
+	FixedIn string `json:"fixedIn,omitempty"`
+}