{"id":121141,"date":"2024-12-25T15:46:00","date_gmt":"2024-12-25T13:46:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pervyj-testovyj-vypusk-web-brauzera-fixbrowser"},"modified":"2024-12-25T15:46:00","modified_gmt":"2024-12-25T13:46:00","slug":"pervyj-testovyj-vypusk-web-brauzera-fixbrowser","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/pervyj-testovyj-vypusk-web-brauzera-fixbrowser","title":{"rendered":"Primeira vers\u00e3o de teste do navegador web FixBrowser","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Foi lan\u00e7ado o primeiro teste do navegador web FixBrowser, projetado para baixo consumo de recursos e garantir privacidade. O navegador est\u00e1 sendo desenvolvido do zero e, por princ\u00edpio, n\u00e3o suporta a execu\u00e7\u00e3o de JavaScript, mas ainda permite que sites baseados em JavaScript sejam acess\u00edveis. O c\u00f3digo \u00e9 escrito nas linguagens C e FixScript, e \u00e9 distribu\u00eddo sob a licen\u00e7a ZLIB. Compila\u00e7\u00f5es prontas est\u00e3o dispon\u00edveis para Linux (GTK2) e Windows. Est\u00e3o previstas compila\u00e7\u00f5es para Haiku e macOS 10.6+, bem como a produ\u00e7\u00e3o de compila\u00e7\u00f5es para Linux que utilizam GTK3\/4. <\/p>\n

Para trabalhar com sites que dependem de JavaScript, o FixBrowser utiliza uma camada chamada FixProxy, que transforma esses sites em uma representa\u00e7\u00e3o que pode ser acessada sem JavaScript. A substitui\u00e7\u00e3o \u00e9 feita tanto por templates padr\u00e3o quanto por meio de fix-manipuladores que consideram as especificidades de sites espec\u00edficos (inclui fix-manipuladores para mais de 1200 sites). O FixProxy se desenvolve na forma de um processo proxy separado, n\u00e3o vinculado ao FixBrowser e adequado para uso com outros navegadores. <\/p>\n

Observa-se que, para exibir a maioria dos sites sem JavaScript, s\u00e3o necess\u00e1rias apenas altera\u00e7\u00f5es m\u00ednimas. Al\u00e9m disso, muitos sites utilizam tecnologias semelhantes para a gera\u00e7\u00e3o din\u00e2mica de conte\u00fado, permitindo a aplica\u00e7\u00e3o de manipuladores fixos padr\u00e3o para sua renderiza\u00e7\u00e3o. Por exemplo, manipuladores fixos universais podem ser usados para sites baseados na plataforma WordPress e em f\u00f3runs na plataforma Disqus. Tamb\u00e9m \u00e9 poss\u00edvel criar manipuladores para sites que renderizam conte\u00fado dinamicamente \u2014 por exemplo, para exibir uma lista de coment\u00e1rios que, inicialmente, s\u00e3o carregados dinamicamente usando JavaScript; o manipulador fixo carrega diretamente os dados no formato JSON e gera o HTML com base nesses dados. <\/p>\n

Para processar captchas e componentes JavaScript, como verifica\u00e7\u00f5es do CloudFlare, sem os quais n\u00e3o \u00e9 poss\u00edvel acessar alguns sites, est\u00e1 planejada a cria\u00e7\u00e3o de uma camada baseada na estrutura CEF (Chromium Embedded Framework), que poder\u00e1 executar seletivamente apenas o c\u00f3digo JavaScript necess\u00e1rio. A camada para JavaScript ser\u00e1 implementada como um servi\u00e7o separado (pode ser executado em seu pr\u00f3prio sistema ou pode-se utilizar um servi\u00e7o em nuvem p\u00fablico). <\/p>\n

Para bloquear o rastreamento da atividade do usu\u00e1rio, o carregamento de recursos de hosts externos \u00e9 proibido, e para permitir o carregamento de imagens atrav\u00e9s de redes de entrega de conte\u00fado, s\u00e3o utilizados listas brancas. O suporte a HTTPS est\u00e1 dispon\u00edvel. \u00c9 poss\u00edvel conectar extens\u00f5es escritas na linguagem FixScript. <\/p>\n

O projeto \u00e9 desenvolvido por Martin Dvorak, da Rep\u00fablica Tcheca, que criou a linguagem de programa\u00e7\u00e3o FixScript. A maior parte do c\u00f3digo do FixBrowser \u00e9 escrita na linguagem FixScript, exceto as opera\u00e7\u00f5es cr\u00edticas em rela\u00e7\u00e3o ao desempenho e a estrutura b\u00e1sica. O c\u00f3digo em FixScript \u00e9 incorporado ao c\u00f3digo em C, e para a compila\u00e7\u00e3o \u00e9 utilizado um compilador fornecido em um \u00fanico arquivo, que cont\u00e9m cerca de 27 mil linhas de c\u00f3digo em C (800 KB). A linguagem \u00e9 semelhante ao C, mas utiliza tipagem din\u00e2mica, coletor de lixo e compila\u00e7\u00e3o JIT. O FixBrowser garante um funcionamento seguro com mem\u00f3ria e threads, al\u00e9m de ter prote\u00e7\u00e3o integrada contra estouros de inteiros. <\/p>\n

A implementa\u00e7\u00e3o do mecanismo do navegador foi significativamente simplificada, pois o FixBrowser realiza apenas a renderiza\u00e7\u00e3o prim\u00e1ria e n\u00e3o suporta a atualiza\u00e7\u00e3o din\u00e2mica do conte\u00fado. Depois que a p\u00e1gina \u00e9 exibida, ela n\u00e3o muda mais, portanto, n\u00e3o \u00e9 necess\u00e1rio recorrer a abstra\u00e7\u00f5es como o DOM (Document Object Model). Atualmente, o foco est\u00e1 na cria\u00e7\u00e3o de um parser HTML que suporte as especifica\u00e7\u00f5es HTML5. A implementa\u00e7\u00e3o proposta na primeira vers\u00e3o de teste abrange apenas 30% dos testes HTML5. O suporte b\u00e1sico a CSS foi implementado.

\"Primeira<\/center>
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":121142,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-121141","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Primeira vers\u00e3o de teste do navegador web FixBrowser | ProHoster","description":"A primeira vers\u00e3o de teste do navegador web FixBrowser foi lan\u00e7ada, visando baixo consumo de recursos e garantia de 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