Support customized server config

[zhongnansu]

Issue #, if available:
#98
This is the most reported issue so far. Users are not able to generate any report if they have customized Kibana sever setting(host, sever base path, port), or enable TLS.

Server config is set in kibana.yml

Description of changes:

• remove the hardcoded localhost:5601 when building the complete url
• Dynamically retrieve serverInfo(which contains port, host, protocol), and server.basePath and pass them through route handler for validating the input url, compose complete url.
• Add one more puppeteer launch option ignoreHttpsError: true to support TLS-enabled kibana server https://github.com/puppeteer/puppeteer/blob/main/docs/api.md#puppeteerlaunchoptions
• Add one more param "path: server.basePath" to the cookie object, to support customized server.basePath when security is enabled.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

Merging #313 (3d518fb) into dev (1a5b871) will increase coverage by 0.07%.
The diff coverage is 88.88%.

@@             Coverage Diff              @@
##                dev     #313      +/-   ##
============================================
+ Coverage     64.16%   64.24%   +0.07%     
  Complexity      291      291              
============================================
  Files           100      100              
  Lines          4044     4047       +3     
  Branches        614      613       -1     
============================================
+ Hits           2595     2600       +5     
+ Misses         1288     1287       -1     
+ Partials        161      160       -1     

Flag	Coverage Δ	Complexity Δ
Kibana-reports	77.82% <88.88%> (+0.14%)	0.00 <0.00> (ø)
reports-scheduler	53.28% <ø> (ø)	0.00 <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ	Complexity Δ
kibana-reports/server/routes/utils/constants.ts	100.00% <ø> (ø)	0.00 <0.00> (ø)
...r/routes/utils/visual_report/visualReportHelper.ts	83.92% <ø> (ø)	0.00 <0.00> (ø)
...orts/server/routes/utils/converters/backendToUi.ts	79.04% <83.33%> (+2.12%)	0.00 <0.00> (ø)
kibana-reports/server/utils/validationHelper.ts	90.00% <100.00%> (+0.81%)	0.00 <0.00> (ø)

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[joshuali925]

what does this file do besides defining KibanaReportsPluginConfigType? it seems it's adding port and basepath config to the kibana.yml file? shouldn't be necessary since we are not reading from yml

[zhongnansu]

This is something I forget to remove when I tried the plugin config approach. Will remove

[joshuali925]

is query_url/base_url the full url with hostname? e.g. localhost:5601/alh/app/... would it replace alh in localhost

[zhongnansu]

query_url doesn't contain hostname