87 lines
2.6 KiB
Bash
87 lines
2.6 KiB
Bash
#!/bin/bash
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PRINTER_DEVICE="/dev/usb/lp0" # 热敏打印机设备路径
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# ESC/POS 指令部分
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ESC=$(echo -e "\x1b") # ESC 字符
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RESET="${ESC}@"
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BOLD_ON="${ESC}E\x01"
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BOLD_OFF="${ESC}E\x00"
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CENTER="${ESC}a\x01"
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LEFT_ALIGN="${ESC}a\x00"
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DOUBLE_HEIGHT="${ESC}!\x10" # 双倍高度
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DOUBLE_WIDTH="${ESC}!\x20" # 双倍宽度
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NORMAL_SIZE="${ESC}!\x00"
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CUT_PAPER="${ESC}i" # 切纸指令
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# 定义目标URL
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URL="https://www.caanet.org.cn/news.mx?id=3"
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LAST_URL_FILE="/volume2/docker/last_full_url.txt"
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# 使用curl抓取网页内容
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page_content=$(curl -s "$URL")
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# 使用htmlq调用htmlq根据CSS选择器提取第一条条目的标题和相对网址
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title=$(echo "$page_content" | /volume2/docker/htmlq '#AjaxList > li:nth-child(1) > a' --text)
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relative_url=$(echo "$page_content" | /volume2/docker/htmlq '#AjaxList > li:nth-child(1) > a' --attribute href)
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# 拼接完整网址
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full_url="https://www.caanet.org.cn/$relative_url"
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# 检查文件是否存在，如果不存在则创建
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if [ ! -f "$LAST_URL_FILE" ]; then
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touch "$LAST_URL_FILE"
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fi
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# 读取文件中上次的URL
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last_url=$(cat "$LAST_URL_FILE")
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# 比较full_url和上次的URL
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if [ "$full_url" == "$last_url" ]; then
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echo "条目未更新，不输出内容。"
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else
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# 使用curl抓取条目详情页内容
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details_content=$(curl -s "$full_url")
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# 调用htmlq根据CSS选择器提取内容，并截取“截稿时间”向后的25个字
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deadline_info=$(echo "$details_content" | /volume2/docker/htmlq '#contentWap > div.page_r' --text | sed -n 's/.*截稿时间\([^截稿时间]*\)\(.\{0,512\}\).*/\1\2/p')
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# 输出结果
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echo "标题: $title"
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echo "相对网址: $relative_url"
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echo "完整网址: $full_url"
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echo "截稿时间: $deadline_info"
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deadline="截稿时间""$deadline_info"
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# 格式化打印内容
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# 重置打印机状态
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echo -ne "$RESET" > "$PRINTER_DEVICE"
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# 打印五行空白
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echo -e "\n\n\n" > "$PRINTER_DEVICE"
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# 打印居中的加粗标题，双倍高度和宽度
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echo -ne "$CENTER$BOLD_ON$DOUBLE_HEIGHT$DOUBLE_WIDTH" > "$PRINTER_DEVICE"
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echo "$title" | iconv -f UTF-8 -t GBK > "$PRINTER_DEVICE"
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echo -ne "$RESET" > "$PRINTER_DEVICE" # 复位到正常大小和状态
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# 打印左对齐的描述
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echo -ne "$LEFT_ALIGN$NORMAL_SIZE"
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echo -e "\n" > "$PRINTER_DEVICE"
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echo -ne "$full_url" > "$PRINTER_DEVICE"
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echo -e "\n" > "$PRINTER_DEVICE"
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echo "$(echo "$deadline" | iconv -f UTF-8 -t GBK)" > "$PRINTER_DEVICE"
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echo -ne "$RESET" # 复位打印机状态
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# 打印五行空白
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echo -e "\n\n\n\n\n" > "$PRINTER_DEVICE"
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# 切纸
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echo -ne "$CUT_PAPER" > "$PRINTER_DEVICE"
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# 更新文件中的URL
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echo "$full_url" > "$LAST_URL_FILE"
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fi |