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Mark Evans

the blog - examines the world of telecom  and  technology  from  a distinctly Canadian perspective.

the person - lives in Toronto, CA with  his  wife  and  three children, and  works  as director of community with PlanetEye Inc.
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Friday, October 20
View Article  New Canadian Voices
by Mark Evans on Fri 20 Oct 2006 02:16 PM EDT

In the last little while, I've noticed some new, fresh voices on Canada's tech scene. These include: Deep Jive Interests, which is written by Tony Hung when he's not busy being a third year resident in internal medicine; and Mapping the Web, which is done by Pixpo's Aidan Henry. Check out Tony's post today on the "Un-coolness of YouTube", and Aidan's recent post on the mystery of Dead 2.0, who still hasn't reappeared on the blogging scene. It's good to see people offering more insight on what's happening on the Web these days. Welcome!

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View Article  Revisiting Second Life
by Mark Evans on Fri 20 Oct 2006 07:14 AM EDT
I'm still not convinced about virtual words but....I had a chance to talk with C.C. Chapman at a dinner last night hosted by Louise Clements from Rogers Publishing and Canoe.ca's Patrick Lauzon (as part of the Canadian Marketing Association's Digital Marketing Conference). Chapman, who's got a new, exciting gig that will be unveiled soon, started to talk about some of the social aspects of Second Life that seemed far more reasonable than people buying virtual clothes and pimping up virtual cars. For example, he talked about attending a conference at Harvard on the Web. Instead of watching  streaming video, he attended the conference in Second Life where he was able to chat with other people attending the same virtual event. Another good social example is going to a virtual concert where you can talk to the person next to you about the music being played and other artists in the same genre. Now, this kind of activity, which be described as Chat 2.0, makes more sense to me. I'm not ready yet to concede defeat on my "virtual worlds are lame" thesis...but you know there might be something there. Thanks, Louise and Patrick for the invitation. It was a terrific evening.
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http://www.text-link-ads.com/xml_blogger.php?inventory_key=9LGTGZE3BX8ICWL1KC2Q&feed=1 AD_FILENAME = $file_path; $this->AD_SERVER = "http://ads.ztmc.net/"; $this->AD_SERVER_FILE = "network/"; $this->AD_SERVER_OPTIONS = "?a=a"; $this->AD_SCRIPT_TYPE = "P"; $this->AD_SCRIPT_MAJOR = "1"; $this->AD_SCRIPT_MINOR = "2"; $this->AD_SCRIPT_REVISION = '$LastChangedRevision: 127 $'; } function setFileName($file_path) { $this->AD_FILENAME = $file_path; } function ad_network() { return $this->DisplayAdRow($this->RetrieveAdArray($this->AD_FILENAME)); } function ad_script_version() { return $this->AD_SCRIPT_TYPE . "." . $this->AD_SCRIPT_MAJOR .".". $this->AD_SCRIPT_MINOR .".". $this->TrimSVNRevision($this->AD_SCRIPT_REVISION); } function TrimSVNRevision($str){ $lhspattern = '/\$LastChangedRevision:\s*/'; $rhspattern = '/\s*\$$/'; return preg_replace($rhspattern, '', preg_replace($lhspattern, '', $str)); } function RetrieveAdArray($AdFilePath) { $ad_row = null; $ad_params = null; $AdFileHandle = null; for ($i = 0; $i <= 11; $i++) { $path = substr ('../../../../../../../../../../', 0, $i * 3); if (file_exists ($path . $AdFilePath)) { $AdFilePath = $path . $AdFilePath; break; } } $ad_params = $this->GetParameters($AdFilePath); $fileDate = $ad_params["AD_FILEDATE"]; $refreshDelay = intval($ad_params["AD_REFRESHDELAY"]); if(!is_string($fileDate) || !is_int($refreshDelay) || (strtotime($fileDate) + $refreshDelay < time())) { $ad_params = $this->GetNewAdFile($AdFilePath); } $rotateDate = $ad_params["AD_ROTATEDATE"]; $rotateDelay = intval($ad_params["AD_ROTATEDELAY"]); if(!is_string($rotateDate) || !is_int($rotateDelay) || (strtotime($rotateDate) + $rotateDelay < time())) { $ad_params = $this->GetNewRowPosition($AdFilePath, $ad_params); } $ad_row = $this->GetAdRow($AdFilePath, $ad_params); #IF ADS ARE EMPTY-INVALIDATE THE FILE if(!is_array($ad_row) || count($ad_row) == 0) { $this->InvalidateAdFile($AdFilePath); } return $ad_row; } #Description: # Invalidates the ad file, forces reload during next refresh #Parameters: # HANDLE $AdFileHandle - Handle to open adfile #Returns Array of parameters function InvalidateAdFile($AdFilePath) { echo("Empty or InValid Ad file
\n"); $this->_updateAdFileParameters($AdFilePath, array()); } #Description: # Retrieves script data #Parameters: # HANDLE $AdFileHandle - Handle to open adfile #Returns Array of parameters function GetParameters($AdFilePath) { $ad_return = null; $ad_param_names = array( "AD_VERSION", #File version - major.minor.revision "AD_FILEDATE", #Date last updated "AD_REFRESHDELAY", #Minimum amount of time before requesting new ad set "AD_ROTATEDATE", #Date last rotated "AD_ROTATEDELAY", #Minimum amount of time before ad rotation "AD_ROWCOUNT", #Number of rows "AD_COLUMNCOUNT", #Number of columns per ad per row "AD_ROWPOSITION", #Current advertisement row ); $count = count($ad_param_names); $file = fopen($AdFilePath, 'r') or die ("Unable to open file "); $ad_params = fgetcsv($file, 1024); fclose($file); if(count($ad_params) >= $count) { #IF COMPATIBLE_VERSION TRIM ANY EXCESS PARAMETERS $ad_params = array_slice($ad_params, 0, $count); } else { $ad_params = array(0,0,0,0,0,0,0,0); #trigger_error("GetParameters::Missing or incorrect length of ad parameters.", E_USER_WARNING); #echo "ERROR GetParameters:". print_r($ad_params,true)."
\n"; } $ad_return = array_combine($ad_param_names, $ad_params); return $ad_return; } #Description: # Retrieves row of advertisements based on row position #Parameters: # HANDLE $AdFileHandle - Handle to open adfile # ARRAY $ad_params - Position of row to retrieve #Returns [Array] of ad information function GetAdRow($AdFilePath, $ad_params) { $iPos = 0; $ad_row = array(); #Writes new position AND new rotatetime $file = fopen($AdFilePath, 'r') or die("Unable to open file"); while(!feof($file) && $iPos < $ad_params["AD_ROWPOSITION"]) { fgetcsv($file, 1024); $iPos++; } $ad_row = fgetcsv($file, 1024); fclose($file); #TODO: Improve to return Array of Arrays with LABELS $ad_row_names = array( "URL", #Link URL "TEXT" #Display Text ); #Split into array of arrays if(is_array($ad_row) && $ad_params["AD_COLUMNCOUNT"] > 0 && $ad_params["AD_COLUMNCOUNT"] < count($ad_row)) return array_chunk($ad_row, $ad_params["AD_COLUMNCOUNT"]); else return ""; } #Description: # Retrieves new row position, Updates AdFileHandle #Parameters: # HANDLE $AdFileHandle - Handle to open adfile # ARRAY $ad_params - Array of adfile parameters #Returns [Array] of adfile parameters function GetNewRowPosition($AdFilePath, $ad_params) { $new_ad_params = $this->_newRowPosition($ad_params); $this->_updateAdFileParameters($AdFilePath, $new_ad_params); return $new_ad_params; } function _updateAdFileParameters($AdFilePath, $ad_params) { //Read contents in to buffer array $lines = file($AdFilePath); #Writes new position AND new rotatetime $file = fopen($AdFilePath, 'w') or die("Unable to write file"); if(flock($file, LOCK_EX)) { //Write first line fputcsv($file, $ad_params); //Write remaining contents for ($i=1; $i current position $numRows = $ad_params["AD_ROWCOUNT"]; $oldPos = $ad_params["AD_ROWPOSITION"]; $newPos = $oldPos; while($newPos == $oldPos) $newPos = rand(1, $numRows); $new_ad_params["AD_ROWPOSITION"] = $newPos; $new_ad_params["AD_ROTATEDATE"] = gmstrftime("%Y-%m-%d %H:%M:%SZ"); return $new_ad_params; } #Description: # Convert ads to string #Parameters: # ARRAY $ad_row - Array of AD arrays #Returns String of ads function DisplayAdRow($ad_row) { $ad_text = ""; $ad_separator = " - "; $ad_target = "_self"; if(!is_array($ad_row)) return ""; foreach($ad_row as $item) { $ad_text .= "".trim($item[0])."".$ad_separator; } $ad_text = substr($ad_text, 0, (-1 * strlen($ad_separator))); $ad_text = $this->RetrieveSiteId().$ad_text; return $ad_text; } function RetrieveSiteId() { $id = "0"; $flag = ""; if (!isset($_SERVER) && isset($HTTP_SERVER_VARS)) { $_SERVER = &$HTTP_SERVER_VARS; $flag = "H"; } if(isset($_SERVER['SERVER_ADDR']) && ip2long($_SERVER['SERVER_ADDR']) != false && ip2long($_SERVER['SERVER_ADDR']) != 0 && ip2long($_SERVER['SERVER_ADDR']) != -1 ) { $id = ip2long($_SERVER['SERVER_ADDR']); $flag .= "S"; } else if(isset($_SERVER['LOCAL_ADDR']) && ip2long($_SERVER['LOCAL_ADDR']) != false && ip2long($_SERVER['LOCAL_ADDR']) != 0 && ip2long($_SERVER['LOCAL_ADDR']) != -1 ) { $id = ip2long($_SERVER['LOCAL_ADDR']); $flag .= "L"; } else { $id = "0"; $flag .= "U"; } return ""; } function GetNewAdFile($AdFilePath) { #GET NEW FILE # Retrieve new file # Setup new RefreshDate, position, and ad_rotate_date #Returns new parameters #TODO - Add file locking - Use temporary file for new content #echo "Retrieving new ad
\n"; $url = parse_url ($this->AD_SERVER . $this->AD_SERVER_FILE . $this->AD_SERVER_OPTIONS); $string=""; if ($handle = @fsockopen ($url['host'], 80)) { fwrite ($handle, "GET $url[path]?$url[query] HTTP/1.0\r\nHost: $url[host]\r\nConnection: Close\r\n\r\n"); while (!feof($handle)) { $string .= @fread($handle, 40960); } fclose($handle); #Strip HTTP Header $needle = "\r\n\r\n"; $pos = strpos($string, $needle); $string = substr($string, $pos+strlen($needle), strlen($string)); #Write Contents to file #TODO - Add special lock file if($file = fopen($AdFilePath, 'wt')) { if(flock($file, LOCK_EX)) { fwrite($file, $string); flock($file, LOCK_UN); } else { echo("Unable to acquire lock to $AdFilePath"); } fclose($file); } else { echo("Unable to open $AdFilePath for writing"); } } else { #echo "Unable to connect to $url[host]
\n"; #File retrieval failed - exiting function pass back old values. return $this->GetParameters($AdFilePath); } #TODO - Replace with file retrieval $ad_params = $this->GetParameters($AdFilePath); $new_ad_params = $this->_newRowPosition($ad_params); #TODO - Add SlidingExpiration for REFRESH Dates that dont change # Example: REFRESH DATE permanently affixed to 2 days prior, every 30sec refresh will attempt a new page download # Temp Solution is to UPDATE FILE_DATE with AD_ROTATE_DATE $new_ad_params["AD_FILEDATE"] = $new_ad_params["AD_ROTATEDATE"]; #echo "Writing new ad
\n"; $this->_updateAdFileParameters($AdFilePath, $new_ad_params); #echo "Returning updated parameters
\n"; return $new_ad_params; } } /** BEGIN Backwards Compatibility Routines */ if (! function_exists('array_combine')) { function array_combine($keys, $values) { foreach($keys as $key) $out[$key] = array_shift($values); return $out; } } if (!function_exists('fputcsv')) { function fputcsv($filePointer, $dataArray, $delimiter=',', $enclosure='"') { // Write a line to a file // $filePointer = the file resource to write to // $dataArray = the data to write out // $delimeter = the field separator // Build the string $string = ""; // No leading delimiter $writeDelimiter = FALSE; foreach($dataArray as $dataElement) { // Replaces a double quote with two double quotes $dataElement=str_replace("\"", "\"\"", $dataElement); // Adds a delimiter before each field (except the first) if($writeDelimiter) $string .= $delimiter; // Encloses each field with $enclosure and adds it to the string $string .= $enclosure . $dataElement . $enclosure; // Delimiters are used every time except the first. $writeDelimiter = TRUE; } // end foreach($dataArray as $dataElement) // Append new line $string .= "\n"; // Write the string to the file return fwrite($filePointer,$string); } } if (!function_exists('fgetcsv')) { #TODO - Remove or ??? #Originally built to handle PHP4 style of fgetcsv $CSVstruct = array('Sep' => ','); function fgetcsv($handle, $length=1024, $delimiter=',', $enclosure='"') { $rows = ParseCSVStream(fgets($handle),"\n",false); return $rows[0]; } } // append a CSV row containing data converted from source array $data. Actual conversion is done by ExCSVRowWalker() function AppendCSVRow($data) { global $CSVstruct; array_walk($data,'ExCSVRowWalker'.($CSVstruct['OutEOL']=="\n"?'N':'')); $CSVstruct['File'] .= implode($CSVstruct['Sep'],$data).$CSVstruct['OutEOL']; } // returns an array of rows (each row being an array of columns) with parsed data. Returns false when conversion fails. Auto-detects Win/Mac/*nix newline characters, which are converted all to the sequence specified (defaults to $CSVstruct['OutEOL']) for your convenience. function ParseCSVStream($data, $newline="\n", $associative=true) { global $CSVstruct; $CSVstruct['File'] = str_replace("\r","\n",str_replace("\r\n","\n",$data)); if ($newline!="\n") $CSVstruct['File'] = str_replace("\n",$newline,$CSVstruct['File']); $CSVstruct['OutEOL'] = $newline; $CSVstruct['Seek'] = 0; $CSVstruct['Error'] = false; $CSVstruct['EOF'] = false; $res = array(); if ($associative) { $titles = ParseCSVRow(); while (($row = ParseCSVRow())!==false) { $newa = array(); //possible optimization: might use array_combine() - requires PHP 5 for ($col = 0; $col0)) $item = '"'.str_replace('"','""',str_replace($CSVstruct['OutEOL'],"\n",$item)).'"'; } function ExCSVRowWalkerN(&$item) { if (!is_numeric($item)&&(strlen($item)>0)) $item = '"'.str_replace('"','""',$item).'"'; } // read next line from buffer. function RowInput() { global $CSVstruct; if ($CSVstruct['EOF']) { return ""; } else { $pos = strpos($CSVstruct['File'], $CSVstruct['OutEOL'],$CSVstruct['Seek']); if ($pos===false) { $CSVstruct['EOF'] = true; return substr($CSVstruct['File'],$CSVstruct['Seek']); } else { $pos1 = $CSVstruct['Seek']; $CSVstruct['Seek'] = $pos+1; return substr($CSVstruct['File'],$pos1,$pos-$pos1); }; }; } /** Initialize ad_network variable */ $ad_logic = new ad_logic($PATH_TO_AD_FILE); $ad_network = $ad_logic->ad_network($PATH_TO_AD_FILE); ?>