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wombat: Date: fixes to Date override, guard against double override

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document.write: use shared rewrite_html() method, issue single write call
loaders: read_http() don't use range request if no range is set
This commit is contained in:
Ilya Kreymer 2015-07-17 18:40:25 -07:00
parent b92d75ff9b
commit e435242d38
2 changed files with 24 additions and 38 deletions
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58
pywb/static/wombat.js
View File

@ -762,10 +762,17 @@ var wombat_internal = function(window) {
var timezone = 0;
var timediff = window.Date.now() - (timestamp - timezone);
window.__Date = window.Date;
window.__Date_now = window.Date.now;
var utc = window.Date.UTC;
var parse = window.Date.parse;
if (window.__wb_Date_now) {
return;
}
var orig_date = window.Date;
var orig_utc = window.Date.UTC;
var orig_parse = window.Date.parse;
var orig_now = window.Date.now;
window.__wb_Date_now = orig_now;
window.Date = function (Date) {
return function (A, B, C, D, E, F, G) {
@ -773,7 +780,7 @@ var wombat_internal = function(window) {
// seem to like undefined args, so must explicitly
// call constructor for each possible args 0..7
if (A === undefined) {
return new Date(Date.now());
return new Date(orig_now() - timediff);
} else if (B === undefined) {
return new Date(A);
} else if (C === undefined) {
@ -792,14 +799,14 @@ var wombat_internal = function(window) {
}
}(window.Date);
window.Date.prototype = window.__Date.prototype;
window.Date.prototype = orig_date.prototype;
window.Date.now = function() {
return __Date_now() - timediff;
return orig_now() - timediff;
}
window.Date.UTC = utc;
window.Date.parse = parse;
window.Date.UTC = orig_utc;
window.Date.parse = orig_parse;
}
//============================================
@ -961,7 +968,7 @@ var wombat_internal = function(window) {
}
//============================================
function rewrite_innerHTML(string) {
function rewrite_html(string) {
var inner_doc = new DOMParser().parseFromString(string, "text/html");
if (!inner_doc) {
@ -1091,7 +1098,7 @@ var wombat_internal = function(window) {
var res = orig;
if (!this._no_rewrite) {
//init_iframe_insert_obs(this);
res = rewrite_innerHTML(orig);
res = rewrite_html(orig);
}
orig_setter.call(this, res);
}
@ -1145,7 +1152,7 @@ var wombat_internal = function(window) {
//if (this.parentElement) {
// init_iframe_insert_obs(this.parentElement);
//}
text = rewrite_innerHTML(text);
text = rewrite_html(text);
}
return orig_insertAdjacentHTML.call(this, position, text);
@ -1422,31 +1429,8 @@ var wombat_internal = function(window) {
var orig_doc_write = window.document.write;
var new_write = function(string) {
var write_doc = new DOMParser().parseFromString(string, "text/html");
if (!write_doc) {
return;
}
if (write_doc.head && this.head) {
var elems = write_doc.head.children;
for (var i = 0; i < elems.length; i++) {
// Call orig write to ensure same execution order and placement
rewrite_elem(elems[i]);
orig_doc_write.call(this, elems[i].outerHTML);
}
}
if (write_doc.body && this.body) {
var elems = write_doc.body.children;
for (var i = 0; i < elems.length; i++) {
// Call orig write to ensure same execution order and placement
rewrite_elem(elems[i]);
orig_doc_write.call(this, elems[i].outerHTML);
}
}
new_buff = rewrite_html(string);
orig_doc_write.call(this, new_buff);
}
window.document.write = new_write;

4
pywb/utils/loaders.py
View File

@ -223,7 +223,9 @@ class BlockLoader(object):
Load a file-like reader over http using range requests
and an optional cookie created via a cookie_maker
"""
headers = {'Range': self._make_range_header(offset, length)}
headers = {}
if offset != 0 or length != -1:
headers['Range'] = self._make_range_header(offset, length)
if self.cookie_maker:
if isinstance(self.cookie_maker, basestring):