Android Intent-infliter Filter Verification

<span id="Label3"></p><p><p></p></p><p><p>Filtering is divided into four types of verification</p></p><p><p><action></p></p><p><p><category></p></p><p><p><data></p></p><p><p><ssp></p></p><p><p>0. Four components can declare multiple Intent-fliter tags.</p></p><p><p>1. Action validation is a required option, and if there is no action, the validation fails. The action validation is either a relationship, that is, satisfies one by passing the Validation.</p></p><p><p>eg</p></p><p><p><intent-infliter ></p></p><p><p><actionandroid:name= "Action1"/></p></p><p><p><actionandroid:name= "Action2"/></p></p><p><p><actionandroid:name= "Action3"/></p></p><p><p></intent-infliter ><</p></p><p><p></p></p><p><p></p></p><p><p>Action = "Action1"</p></p><p><p>by verifying</p></p><p><p></p></p><p><p>2.category is optional, the validation rule is that if multiple tags are declared on a intent-fliter label, all the category of the intent that requested validation must be a subset of the Intent-fliter label category that the current request Validates.</p></p><p><p></p></p><p><p><intent-infliter ></p></p><p><p><category android:name= "category 1"/></p></p><p><p><category android:name= "category2"/></p></p><p><p><category android:name= "category3"/></p></p><p><p></intent-infliter ><</p></p><p><p></p></p><p><p>Eg2:</p></p><p><p>Intent Intent = new Intent ();</p></p><p><p>Intent. addcategory ("category1");</p></p><p><p>Intent. addcategory ("category2");</p></p><p><p>by verifying</p></p><p><p></p></p><p><p>Eg3:</p></p><p><p>Intent Intent = new Intent ();</p></p><p><p>Intent. addcategory ("category1");</p></p><p><p>Intent. addcategory ("category2");</p></p><p><p>Intent. addcategory ("category4");</p></p><p><p>Failed to pass validation</p></p><p><p></p></p><p><p></p></p><p><p></p></p><p><p></p></p><p><p></p></p><p><p>3.data Authentication. Format of Data: Scheme://host:port/path</p></p><p><p>3.1: validation must be done from left to right to verify that skipping verification is not allowed.</p></p><p><p>eg</p></p><p><p>3.2:scheme is a Must-have.</p></p><p><p>3.3: Validated Properties</p></p><p><p>A android:scheme= ""</p></p><p><p>b android:host= ""</p></p><p><p>C android:port= ""</p></p><p><p>D android:path= ""</p></p><p><p>E android:pathpattern= ""</p></p><p><p>F android:pathprefix= ""</p></p><p><p>G Android:mimetype= ""</p></p><p><p>H android:ssp= "" 4.4 Plus</p></p><p><p>I android:ssppattern= "" 4.4 Plus</p></p><p><p>J android:sspprefix= "" 4.4 Plus</p></p><p><p></p></p><p><p>For a, b, c, D Their relationship is the relationship, only the full satisfaction is Counted.</p></p><p><p>For the relationship of d, e, f Their relationship is or is passed by any ONE.</p></p><p><p>The relationship to URIs (a, b, c, d, e, F) and MimeType is the Relationship. Only all satisfaction is Counted. Remember that if the intent of the request validation contains a URI or mimetype, and the label contains a URI or mimetype, then the request validation is Unsuccessful. conversely, it Fails.</p></p><p><p>4. SSP See https:/zybuluo.com/flyouting/note/18525</p></p><p><p>Note 1:path is used for full path matching. eg:/index.jsp</p></p><p><p>Note 2:pathpattern is a path matching pattern with two forms of "<strong><span style="color:red">*</span></strong>", "<strong><span style="color:red">. *</span></strong>"</p></p><p><p>* Represents a * before a character has 0 or more. AB*C matching AC ABC abbc ABBBC</p></p><p><p>. * Represents a string of 0 or More. Ab*c match ABC Abec ABFFC ABUUUUC</p></p><p><p>Note 3:pathprefix is used for path prefix matching. /in matching/in.jsp index.jsp .....</p></p><p><p>Note 4:host can also use wildcards however, the host can contain only one * wildcard character, and cannot contain other Characters.</p></p><br><p><p>Android Intent-infliter Filter Verification</p></p></span>