Mike Samuel ce008f8c37 exp/template/html: pre-sanitized content ... Not all content is plain text. Sometimes content comes from a trusted source, such as another template invocation, an HTML tag whitelister, etc. Template authors can deal with over-escaping in two ways. 1) They can encapsulate known-safe content via type HTML, type CSS, type URL, and friends in content.go. 2) If they know that the for a particular action never needs escaping then they can add |noescape to the pipeline. {{.KnownSafeContent | noescape}} which will prevent any escaping directives from being added. This CL defines string type aliases: HTML, CSS, JS, URI, ... It then modifies stringify to unpack the content type. Finally it modifies the escaping functions to use the content type and decline to escape content that does not require it. There are minor changes to escapeAction and helpers to treat as equivalent explicit escaping directives such as "html" and "urlquery" and the escaping directives defined in the contextual autoescape module and to recognize the special "noescape" directive. The html escaping functions are rearranged. Instead of having one escaping function used in each {{.}} in {{.}} : <textarea title="{{.}}">{{.}}</textarea> a slightly different escaping function is used for each. When {{.}} binds to a pre-sanitized string of HTML `one < <i>two</i> &amp; two < "3"` we produces something like one < <i>two</i> &amp; two < "3" : <textarea title="one &lt; two &amp; two &lt; &#34;3&#34;"> one &lt; &lt;i&gt;two&lt;/i&gt; &amp; two &lt; "3" </textarea> Although escaping is not required in <textarea> normally, if the substring </textarea> is injected, then it breaks, so we normalize special characters in RCDATA and do the same to preserve attribute boundaries. We also strip tags since developers never intend typed HTML injected in an attribute to contain tags escaped, but do occasionally confuse pre-escaped HTML with HTML from a tag-whitelister. R=golang-dev, nigeltao CC=golang-dev https://golang.org/cl/4962067		2011-09-15 08:51:55 -07:00
..
cmd	godoc: support for complete index serialization	2011-09-14 20:46:03 -07:00
lib9	build: fix unused parameters	2011-08-25 16:08:13 -04:00
libbio
libmach	libmach: fix incorrect use of memset	2011-09-01 13:43:03 -04:00
pkg	exp/template/html: pre-sanitized content	2011-09-15 08:51:55 -07:00
all-qemu.bash	build: update all-qemu.bash	2011-07-28 13:04:30 -04:00
all.bash
clean.bash	build: reenable clean.bash without gomake	2011-03-21 00:27:50 -03:00
env.bash	build: fix noclobber	2011-07-28 19:38:14 -04:00
make.bash	make.bash: remove old bash version of gotest on Windows	2011-05-04 11:16:55 +10:00
Make.ccmd	build: explain $PWD use	2011-06-22 17:00:46 -04:00
Make.clib	build: explain $PWD use	2011-06-22 17:00:46 -04:00
Make.cmd	make: add nuke target for C commands and libs	2011-05-11 22:53:42 -04:00
Make.common	make: prevent rm provoking 'text file busy' errors.	2011-04-15 08:25:44 -04:00
Make.inc	build: avoid redundant bss declarations	2011-08-23 22:39:14 -04:00
Make.pkg	gc: add -p flag to catch import cycles earlier	2011-09-07 15:50:21 -04:00
quietgcc.bash	build: handle spaces in $USER	2011-07-28 13:04:52 -04:00
run.bash	build: allow builds without cgo	2011-08-10 21:36:48 -04:00
sudo.bash	sudo.bash: print error/exit if problem with /usr/local/bin	2011-09-01 17:24:32 +10:00
version.bash	version.bash: update VERSION on -save if already present	2011-08-24 22:10:25 -03:00