google广告脚本自动启动adobe的PDF浏览器Acrobat.exe

Question

下面就是google广告的那段js
(function(){
function quoted(str){return str!=null?'"'+str+'"':'""'}
function google_encodeURIComponent(str){if(typeof encodeURIComponent=="function"){return encodeURIComponent(str)}else{return escape(str)}}
function google_append_url(param,value){if(value){window.google_ad_url+="&"+param+"="+value}}
function google_append_url_esc(param,value){if(value){google_append_url(param,google_encodeURIComponent(value))}}
function google_append_color(param,value,random){if(value&&typeof value=="object"){value=value[random%value.length]}google_append_url("color_"+param,value)}
function google_get_user_data(w,date){var screen=w.screen;var javaEnabled=navigator.javaEnabled();var tz=-date.getTimezoneOffset();if(screen){google_append_url("u_h",screen.height);google_append_url("u_w",screen.width);google_append_url("u_ah",screen.availHeight);google_append_url("u_aw",screen.availWidth);google_append_url("u_cd",screen.colorDepth);google_append_url("u_fs",screen.fontSmoothingEnabled==true?"t":"f")}google_append_url("u_tz",tz);google_append_url("u_his",history.length);google_append_url(
"u_java",javaEnabled);if(navigator.plugins){google_append_url("u_nplug",navigator.plugins.length)}if(navigator.mimeTypes){google_append_url("u_nmime",navigator.mimeTypes.length)}pluginlist="";if(navigator.mimeTypes&&navigator.mimeTypes.length){var plugins=new Array("image/svg-xml","application/x-director","application/x-shockwave-flash","audio/x-pn-realaudio-plugin","video/quicktime","application/x-mplayer2","application/pdf");var names=new Array("svg","sd","sf","rp","qt","wmp","ar");for(i=0;i<plugins.length;
i++){pluginlist+=navigator.mimeTypes[plugins[i]]&&navigator.mimeTypes[plugins[i]].enabledPlugin?names[i]+",":""}}else{document.write("<SCR"+"IPT LANGUAGE = VBScript>\n on error resume next \n "+"dim plugins,names,backward_compatibility_index,comp_flags  \n"+'plugins = Array("acroPDF.PDF.1", "PDF.PdfCtrl.6", "PDF.PdfCtrl.5",'+'"PDF.PdfCtrl.4", "ShockwaveFlash.ShockwaveFlash.7",'+'"ShockwaveFlash.ShockwaveFlash.6", "ShockwaveFlash.ShockwaveFlash.5",'+'"ShockwaveFlash.ShockwaveFlash.4", "QuickTime.QuickTime.4",'
+'"QuickTimeCheckObject.QuickTimeCheck.1",'+'"rmocx.RealPlayer G2 Control.1",'+'"SWCt1.SWCt1.9", "SWCt1.SWCt1.8", "SWCt1.SWCt1.7", "SWCt1.SWCt1.1",'+'"MediaPlayer.MediaPlayer.1", "Adobe.SVGCtl") \n '+'names = Array("ar7", "ar6", "ar5", "ar4", "f7", "f6", "f5", "f4", '+'"q4", "qp", "rp", "sw9", "sw8", "sw7", "swp", "wmp", "svg") \n'+"backward_compatibility_index = Array(1, 1, 1, 1, 2, 2, 2, 2, 0, 0, 0,"+" 3, 3, 3, 3, 0, 0) \n"+"comp_flags = Array(0, 0, 0, 0) \n"+"for i = 0 to UBound(names) \n"+"  result = False \n"
+"  result = IsObject(CreateObject(plugins(i))) \n"+"  flag_index = backward_compatibility_index(i) \n"+"  if (result and comp_flags(flag_index) = 0) Then \n"+'    pluginlist = pluginlist & names(i) & "," \n'+"    if(flag_index > 0)  Then comp_flags(flag_index) = 1 \n"+"  end If \n"+"next \n"+"</SCR"+"IPT> \n")}if(pluginlist.length>0){pluginlist=pluginlist.substring(0,pluginlist.length-1)}google_append_url("u_plist",pluginlist)}
function google_modify_client(client){client=client.toLowerCase();if(client.substring(0,3)!="ca-"){client="ca-"+client}return client}
function google_write_iframe(w,d,ad_url){ad_url=ad_url.substring(0,1000);ad_url=ad_url.replace(/%\w?$/,"");if(w.google_ad_output=="js"&&(w.google_ad_request_done||w.google_radlink_request_done)){d.write('<script language="JavaScript1.1"'+" src="+quoted(ad_url)+"></"+"script>")}else if(w.google_ad_output=="html"){if(w.name!="google_ads_frame"){d.write("<iframe"+' name="google_ads_frame"'+" width="+quoted(w.google_ad_width)+" height="+quoted(w.google_ad_height)+" frameborder="+quoted(w.google_ad_frameborder)
+" src="+quoted(ad_url)+' marginwidth="0"'+' marginheight="0"'+' vspace="0"'+' hspace="0"'+' allowtransparency="true"'+' scrolling="no">');d.write("</iframe>")}}else if(w.google_ad_output=="textlink"){d.write('<script language="JavaScript1.1"'+" src="+quoted(ad_url)+"></"+"script>")}}
function google_reset_variables(w){var nullvalue=null;w.google_ad_frameborder=nullvalue;w.google_ad_format=nullvalue;w.google_page_url=nullvalue;w.google_language=nullvalue;w.google_gl=nullvalue;w.google_country=nullvalue;w.google_region=nullvalue;w.google_city=nullvalue;w.google_hints=nullvalue;w.google_safe=nullvalue;w.google_encoding=nullvalue;w.google_ad_output=nullvalue;w.google_max_num_ads=nullvalue;w.google_ad_channel=nullvalue;w.google_contents=nullvalue;w.google_alternate_ad_url=nullvalue;
w.google_alternate_color=nullvalue;w.google_color_bg=nullvalue;w.google_color_text=nullvalue;w.google_color_link=nullvalue;w.google_color_url=nullvalue;w.google_color_border=nullvalue;w.google_color_line=nullvalue;w.google_adtest=nullvalue;w.google_kw_type=nullvalue;w.google_kw=nullvalue;w.google_num_radlinks=nullvalue;w.google_max_radlink_len=nullvalue;w.google_rl_filtering=nullvalue;w.google_rl_mode=nullvalue;w.google_rt=nullvalue;w.google_ad_type=nullvalue;w.google_image_size=nullvalue;w.google_feedback=
nullvalue;w.google_skip=nullvalue;w.google_page_location=nullvalue;w.google_referrer_url=nullvalue;w.google_ad_region=nullvalue;w.google_ad_section=nullvalue;w.google_bid=nullvalue;w.google_cpa_choice=nullvalue;w.google_cust_age=nullvalue;w.google_cust_gender=nullvalue;w.google_cust_interests=nullvalue;w.google_cust_id=nullvalue;w.google_cust_job=nullvalue;w.google_cust_u_url=nullvalue}

Answer 1

function google_show_ad(){var nullvalue=null;var w=window;var d=document;var date=new Date;var random=date.getTime();var format=w.google_ad_format;if(w.google_cpa_choice){w.google_ad_url="http://pagead2.googlesyndication.com/cpa/ads?";w.google_ad_url+="client="+escape(google_modify_client(w.google_ad_client));w.google_ad_region="_google_cpa_region_";google_append_url("cpa_choice",w.google_cpa_choice);if(typeof d.characterSet!="undefined"){google_append_url_esc("oe",d.characterSet)}else if(typeof d.charset!=
"undefined"){google_append_url_esc("oe",d.charset)}}else{w.google_ad_url="http://pagead2.googlesyndication.com/pagead/ads?";w.google_ad_url+="client="+escape(google_modify_client(w.google_ad_client))}var num_slots_by_client=w.google_num_slots_by_client;var num_slots_by_channel=w.google_num_slots_by_channel;var prev_ad_formats=w.google_prev_ad_formats_by_region;w.onerror=w.google_org_error_handler;if(w.google_ad_region==nullvalue&&w.google_ad_section!=nullvalue){w.google_ad_region=w.google_ad_section}
var region=w.google_ad_region==nullvalue?"":w.google_ad_region;var is_zero_ad_format=false;if(format){is_zero_ad_format=format.indexOf("_0ads")>0}if(is_zero_ad_format){if(w.google_num_0ad_slots){w.google_num_0ad_slots=w.google_num_0ad_slots+1}else{w.google_num_0ad_slots=1}if(w.google_num_0ad_slots>1){return}}else if(!w.google_cpa_choice){if(w.google_num_ad_slots){w.google_num_ad_slots=w.google_num_ad_slots+1}else{w.google_num_ad_slots=1}if(w.google_num_slots_to_rotate){prev_ad_formats[region]=nullvalue;
if(w.google_num_slot_to_show==nullvalue){w.google_num_slot_to_show=random%w.google_num_slots_to_rotate+1}if(w.google_num_slot_to_show!=w.google_num_ad_slots){return}}else if(w.google_num_ad_slots>3&&region==""){return}}google_append_url("dt",date.getTime());google_append_url("hl",w.google_language);if(w.google_country){google_append_url("gl",w.google_country)}else{google_append_url("gl",w.google_gl)}google_append_url("gr",w.google_region);google_append_url_esc("gcs",w.google_city);google_append_url_esc(
"hints",w.google_hints);google_append_url("adsafe",w.google_safe);google_append_url("oe",w.google_encoding);google_append_url("lmt",w.google_last_modified_time);google_append_url_esc("alternate_ad_url",w.google_alternate_ad_url);google_append_url("alt_color",w.google_alternate_color);google_append_url("skip",w.google_skip);var client=w.google_ad_client;if(!num_slots_by_client[client]){num_slots_by_client[client]=1;num_slots_by_client.length+=1}else{num_slots_by_client[client]+=1}if(prev_ad_formats[
region]){google_append_url_esc("prev_fmts",prev_ad_formats[region].toLowerCase());if(num_slots_by_client.length>1){google_append_url("slot",num_slots_by_client[client])}}if(format){google_append_url_esc("format",format.toLowerCase());if(prev_ad_formats[region]){prev_ad_formats[region]=prev_ad_formats[region]+","+format}else{prev_ad_formats[region]=format}}google_append_url("num_ads",w.google_max_num_ads);google_append_url("output",w.google_ad_output);google_append_url("adtest",w.google_adtest);if(
w.google_ad_channel){var chnl=w.google_ad_channel.toLowerCase();google_append_url_esc("channel",chnl);var pv_ch="";var arr=chnl.split("+");for(var i=0;i<arr.length;i++){var ch=arr[i];if(!num_slots_by_channel[ch]){num_slots_by_channel[ch]=1}else{pv_ch+=ch+"+"}}google_append_url_esc("pv_ch",pv_ch)}google_append_url_esc("url",w.google_page_url);google_append_color("bg",w.google_color_bg,random);google_append_color("text",w.google_color_text,random);google_append_color("link",w.google_color_link,random)
;google_append_color("url",w.google_color_url,random);google_append_color("border",w.google_color_border,random);google_append_color("line",w.google_color_line,random);google_append_url("kw_type",w.google_kw_type);google_append_url_esc("kw",w.google_kw);google_append_url_esc("contents",w.google_contents);google_append_url("num_radlinks",w.google_num_radlinks);google_append_url("max_radlink_len",w.google_max_radlink_len);google_append_url("rl_filtering",w.google_rl_filtering);google_append_url("rl_mode"
,w.google_rl_mode);google_append_url("rt",w.google_rt);google_append_url("ad_type",w.google_ad_type);google_append_url("image_size",w.google_image_size);google_append_url("region",w.google_ad_region);google_append_url("feedback_link",w.google_feedback);google_append_url_esc("ref",w.google_referrer_url);google_append_url_esc("loc",w.google_page_location);google_append_url("bid",w.google_bid);google_append_url("cust_age",w.google_cust_age);google_append_url("cust_gender",w.google_cust_gender);google_append_url(
"cust_interests",w.google_cust_interests);google_append_url("cust_id",w.google_cust_id);google_append_url("cust_job",w.google_cust_job);google_append_url("cust_u_url",w.google_cust_u_url);if(google_onpage(w,d)&&d.body){var scr_h=d.body.scrollHeight;var clt_h=d.body.clientHeight;if(clt_h&&scr_h){google_append_url_esc("cc",Math.round(clt_h*100/scr_h))}}google_get_user_data(w,date);google_write_iframe(w,d,w.google_ad_url);google_reset_variables(w)}
function google_error_handler(message,url,line){google_show_ad();return true}
function google_onpage(w,d){return w.top.location==d.location}
function google_in_adframe(w,d){var documentElement=d.documentElement;if(google_onpage(w,d))return false;if(w.google_ad_width&&w.google_ad_height){var wd=1;var ht=1;if(w.innerHeight){wd=w.innerWidth;ht=w.innerHeight}else if(documentElement&&documentElement.clientHeight){wd=documentElement.clientWidth;ht=documentElement.clientHeight}else if(d.body){wd=d.body.clientWidth;ht=d.body.clientHeight}if(ht>2*w.google_ad_height||wd>2*w.google_ad_width){return false}}return true}
function google_init_globals(){var w=window;var d=document;var location=d.location;var referrer=d.referrer;var nullvalue=null;w.google_org_error_handler=w.onerror;w.onerror=google_error_handler;if(w.google_ad_frameborder==nullvalue){w.google_ad_frameborder=0}if(w.google_ad_output==nullvalue){w.google_ad_output="html"}if(w.google_ad_format==nullvalue&&w.google_ad_output=="html"){w.google_ad_format=w.google_ad_width+"x"+w.google_ad_height}if(w.google_page_url==nullvalue){w.google_page_url=referrer;
if(!google_in_adframe(w,d)){w.google_page_url=location;w.google_last_modified_time=Date.parse(d.lastModified)/1000;w.google_referrer_url=referrer}}else{w.google_page_location=referrer;if(!google_in_adframe(w,d)){w.google_page_location=location}}if(w.google_num_slots_by_channel==nullvalue){w.google_num_slots_by_channel=new Array}if(w.google_num_slots_by_client==nullvalue){w.google_num_slots_by_client=new Array}if(w.google_prev_ad_formats_by_region==nullvalue){w.google_prev_ad_formats_by_region=new Array}
}
google_init_globals();google_show_ad();})()