wp-super-cache如何在Nginx下启用的mod_rewrite缓存模式及其配置规则

记录一下，如何在Nginx下启用mod_rewrite

1. location / {

2. <span class="hljs-comment"># 如果请求的文件已存在，直接返回</span>

3. <span class="hljs-keyword">if</span> (<span class="hljs-operator">-f</span> <span class="hljs-variable">$request_filename</span>) {

4. <span class="hljs-built_in">break</span>;

5. }

6. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache_file</span> <span class="hljs-string">''</span>;

7. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache_uri</span> <span class="hljs-variable">$request_uri</span>;

8. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache</span> <spanclass="hljs-number">1</span>;

9. <span class="hljs-built_in">set</span> <span class="hljs-variable">$ihttp_host</span> <span class="hljs-string">''</span>;

11. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$request_method</span> =POST) {

12. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache</span> <spanclass="hljs-number">0</span>;

13. }

15. <span class="hljs-comment"># 仅在访问文章永久链接时使用静态文件，请求中带参数则不使用静态缓存</span>

16. <span class="hljs-built_in">set</span> <span class="hljs-variable">$qs</span> <span class="hljs-number">0</span>;

17. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$query_string</span>) {

18. <span class="hljs-built_in">set</span> <span class="hljs-variable">$qs</span> <span class="hljs-number">1</span>;

19. }

21. <span class="hljs-comment"># 不过从 twitter, facebook, feedburner 链接点过来的，总是带参数，这些访问仍然可以使用静态文件</span>

22. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$query_string</span> ~* <span class="hljs-string">"^utm_source=([^&amp;]+)&amp;utm_medium([^&amp;]+)&amp;utm_campaign=([^&amp;]+)(&amp;utm_content=([^&amp;]+))?$"</span>) {

23. <span class="hljs-built_in">set</span> <span class="hljs-variable">$qs</span> <span class="hljs-number">0</span>;

24. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache_uri</span> <span class="hljs-variable">$document_uri</span>;

25. }

26. <span class="hljs-comment">#deactivate on high load</span>

27. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$qs</span> = <span class="hljs-number">1</span>) {

28. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache</span> <spanclass="hljs-number">0</span>;

29. }

30. <span class="hljs-comment"># 针对已登录用户（发表过评论），可以不静态化。在访问量高峰时可注释掉</span>

31. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$http_cookie</span> ~* <span class="hljs-string">"comment_author_|wordpress|wp-postpass_"</span> ) {

32. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache</span> <spanclass="hljs-number">0</span>;

33. }

35. <span class="hljs-comment"># 支持移动设备，访问移动版本的网页缓存</span>

36. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$http_user_agent</span> ~*<span class="hljs-string">'(iphone|ipod|aspen|incognito|webmate|android|dream|cupcake|froyo|blackberry9500|blackberry9520|blackberry9530|blackberry9550|blackberry 9800|webos|s8000|bada)'</span>) {

37. <span class="hljs-built_in">set</span> <span class="hljs-variable">$ihttp_host</span> <span class="hljs-string">'-mobile'</span>;

38. }

40. <span class="hljs-comment"># 指定静态缓存文件的路径</span>

41. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$supercache</span> = <span class="hljs-number">0</span>) {

42. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache_uri</span> <span class="hljs-string">''</span>;

43. }

44. <span class="hljs-keyword">if</span> (<span class="hljs-variable">$supercache_uri</span> ~ ^(.+)$) {

45. <span class="hljs-built_in">set</span> <span class="hljs-variable">$supercache_file</span> /wp-content/cache/supercache/<span class="hljs-variable">$http_host</span><span class="hljs-variable">$1</span>/index<span class="hljs-variable">${ihttp_host}</span>.html;

46. }

48. <span class="hljs-comment"># 只有当缓存文件存在时，才进行 rewrite</span>

49. <span class="hljs-keyword">if</span> (<span class="hljs-operator">-f</span> <span class="hljs-variable">$document_root</span><span class="hljs-variable">$supercache_file</span>) {

50. <span class="hljs-comment">#rewrite ^(.*)$ $supercache_file break;</span>

51. rewrite ^ <span class="hljs-variable">$supercache_file</span> last;

52. }

54. <span class="hljs-comment"># 所有其他请求，转给 wordpress 处理</span>

55. <span class="hljs-keyword">if</span> (!<span class="hljs-operator">-e</span> <span class="hljs-variable">$request_filename</span>) {

56. rewrite . /index.php last;

57. }