{"id":2869,"date":"2012-12-19T22:01:05","date_gmt":"2012-12-19T22:01:05","guid":{"rendered":"https:\/\/www.jose-aguilar.com\/blog\/?p=2869"},"modified":"2015-07-14T22:05:17","modified_gmt":"2015-07-14T22:05:17","slug":"verificar-contrasena-segura-con-jquery","status":"publish","type":"post","link":"https:\/\/www.jose-aguilar.com\/blog\/verificar-contrasena-segura-con-jquery\/","title":{"rendered":"Verificar contrase\u00f1a segura con jQuery"},"content":{"rendered":"

En este art\u00edculo vamos a ver como verificar de forma segura una contrase\u00f1a con jQuery. En el ejemplo que vamos a ilustrar vamos a querer que la contrase\u00f1a tenga al menos 8 caracteres donde debe haber al menos un n\u00famero, una letra y una letra en may\u00fasculas.
\nEl patr\u00f3n de contrase\u00f1a segura podr\u00eda ser mucho m\u00e1s complejo aportando mucha m\u00e1s seguridad pero para ver un ejemplo ya est\u00e1 m\u00e1s que bien.<\/p>\n

\"pswd-secure\"<\/a><\/p>\n

Como vemos en la imagen, la idea es que cuando el usuario se disponga a introducir su contrase\u00f1a, le aparece este tooltip emergente indic\u00e1ndole en cada tecla que pulsa si cumple con uno de los requisitos marcado en color verde y si no lo cumple en rojo. En este caso, hasta que no est\u00e9 todo en verde no se podr\u00e1 procesar el formulario.<\/p>\n

Para obtener este resultado,\u00a0 dentro del <head> de nuestra p\u00e1gina deberemos a\u00f1adir los estilos necesarios (que podr\u00e1s descargar del ejemplo en funcionamiento), la librer\u00eda jQuery y las condiciones que se ejecutan al escribir dentro del campo password:<\/p>\n

<link rel=\"stylesheet\" type=\"text\/css\" media=\"all\" href=\"style.css\" \/>\u00a0\u00a0 \u00a0\r\n<script src=\"http:\/\/code.jquery.com\/jquery-1.7.min.js\"><\/script>\r\n<script>\r\n$(document).ready(function() {\r\n\r\n\u00a0\u00a0 \u00a0$('input[type=password]').keyup(function() {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/ set password variable\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0var pswd = $(this).val();\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/validate the length\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if ( pswd.length < 8 ) {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#length').removeClass('valid').addClass('invalid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0} else {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#length').removeClass('invalid').addClass('valid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/validate letter\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if ( pswd.match(\/[A-z]\/) ) {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#letter').removeClass('invalid').addClass('valid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0} else {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#letter').removeClass('valid').addClass('invalid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/validate capital letter\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if ( pswd.match(\/[A-Z]\/) ) {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#capital').removeClass('invalid').addClass('valid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0} else {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#capital').removeClass('valid').addClass('invalid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/validate number\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if ( pswd.match(\/\\d\/) ) {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#number').removeClass('invalid').addClass('valid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0} else {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#number').removeClass('valid').addClass('invalid');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0}).focus(function() {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#pswd_info').show();\r\n\u00a0\u00a0 \u00a0}).blur(function() {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$('#pswd_info').hide();\r\n\u00a0\u00a0 \u00a0});\r\n\r\n});\r\n<\/script><\/pre>\n
En el <body> de nuestra p\u00e1gina tendremos un formulario con un input de tipo password:<\/p>\n
<label for=\"pswd\">Contrase\u00f1a:<\/label>\r\n<span><input id=\"pswd\" type=\"password\" name=\"pswd\" \/><\/span><\/pre>\n
Y debajo a\u00f1adiremos un contenedor para mostrar los requerimientos de este campo:<\/p>\n
<div id=\"pswd_info\">\r\n   <h4>La contrase\u00f1a deber\u00eda cumplir con los siguientes requerimientos:<\/h4>\r\n\u00a0\u00a0 <ul>\r\n\u00a0\u00a0    <li id=\"letter\">Al menos deber\u00eda tener <strong>una letra<\/strong><\/li>\r\n\u00a0\u00a0 \u00a0\u00a0 <li id=\"capital\">Al menos deber\u00eda tener <strong>una letra en may\u00fasculas<\/strong><\/li>\r\n\u00a0\u00a0 \u00a0\u00a0 <li id=\"number\">Al menos deber\u00eda tener <strong>un n\u00famero<\/strong><\/li>\r\n\u00a0\u00a0 \u00a0\u00a0 <li id=\"length\">Deber\u00eda tener <strong>8 car\u00e1cteres<\/strong> como m\u00ednimo<\/li>\r\n\u00a0\u00a0 <\/ul>\r\n<\/div><\/pre>\n
Cuando revisemos la hoja de estilo, ver\u00e9is que este contenedor inicialmente est\u00e1 escondido en display:none para mostrarlo tan solo cuando estemos con el cursor dentro el campo contrase\u00f1a.<\/p>\n
Ver el ejemplo en funcionamiento<\/p>\n","protected":false},"excerpt":{"rendered":"
En este art\u00edculo vamos a ver como verificar de forma segura una contrase\u00f1a con jQuery. En el ejemplo que vamos a ilustrar vamos a querer que la contrase\u00f1a tenga al menos 8 caracteres donde debe haber al menos un n\u00famero, una letra y una letra en may\u00fasculas. El patr\u00f3n de contrase\u00f1a segura podr\u00eda ser mucho […]<\/p>\n","protected":false},"author":1,"featured_media":5614,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[84],"class_list":["post-2869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jquery","tag-formularios"],"yoast_head":"\nVerificar contrase\u00f1a segura con jQuery - Jose Aguilar Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Verificar contrase\u00f1a segura con jQuery - Jose Aguilar Blog\" \/>\n<meta property=\"og:description\" content=\"En este art\u00edculo vamos a ver como verificar de forma segura una contrase\u00f1a con jQuery. En el ejemplo que vamos a ilustrar vamos a querer que la contrase\u00f1a tenga al menos 8 caracteres donde debe haber al menos un n\u00famero, una letra y una letra en may\u00fasculas. 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