| 147 | } |
| 148 | |
| 149 | public function handleWrite($curlHandle, string $chunk): int |
| 150 | { |
| 151 | if ($this->closed || !is_resource($this->buffer)) { |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | $len = strlen($chunk); |
| 156 | if ($len === 0) { |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | if (@fseek($this->buffer, $this->writeOffset) !== 0) { |
| 161 | $this->fail('Unable to seek WebDAV read buffer.'); |
| 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | $written = @fwrite($this->buffer, $chunk); |
| 166 | if ($written === false || $written !== $len) { |
| 167 | $this->fail('Unable to write WebDAV read buffer.'); |
| 168 | return 0; |
| 169 | } |
| 170 | |
| 171 | $this->writeOffset += $written; |
| 172 | return $written; |
| 173 | } |
| 174 | |
| 175 | private function pump(int $desiredBytes): void |
| 176 | { |