Unable to establish SSL connection.

[Milutinke92]

When the download starts, file starts to download:
query_results.xml, file_dir.xml.
Then on the following link for example:
https://scihub.copernicus.eu/apihub/odata/v1/Products('326b6316-f7ae-4ae6-91e5-2121f3aedfe1')/Nodes('S2A_OPER_PRD_MSIL1C_PDMC_20160526T094552_R051_V20160521T105553_20160521T105553.SAFE')/Nodes('GRANULE')/Nodes
It says: Unable an to establish SSL connection. And "granule_dir.xml" is empty.

When I set https_proxy="" then there is no error.
But he's getting more time to send request for file.

I couldn't find your email to ask you, so I attach this question here. Sorry.

[olivierhagolle]

Sorry for replying late. This is indeed the place where issues should be posted.
I am not sure i understand this issue very well.
Could you please provide your command lines so that i can test ?
Best regards,
Olivier

[Milutinke92]

I download a fresh copy of your api, and setup like this:
export https_proxy=http://proxy.rcub.bg.ac.rs:8080
export http_proxy=http://proxy.rcub.bg.ac.rs:8080

Now the downloading started but now there is a second issue.
It saty "404 not found".
https://scihub.copernicus.eu/odata/v1/Products('b95cb837-6606-484b-89d6-b10bfaead9bd')/Nodes('S2A_OPER_PRD_MSIL1C_PDMC_20160626T152756_R136_V20160626T093035_20160626T093744.SAFE')/Nodes('DATASTRIP')/Nodes('S2A_OPER_MSI_L1C_DS_MPS__20160626T131738_S20160626T093744_N02.04')/Nodes
If you go to this link (copied from console when running api) you will see "page not found"

BUT, if you change link into https://scihub.copernicus.eu/dhus/odata/v1/Products('b95cb837-6606-484b-89d6-b10bfaead9bd')/Nodes('S2A_OPER_PRD_MSIL1C_PDMC_20160626T152756_R136_V20160626T093035_20160626T093744.SAFE')/Nodes('DATASTRIP')/Nodes('S2A_OPER_MSI_L1C_DS_MPS__20160626T131738_S20160626T093744_N02.04')/Nodes
The file is there.

So /dhus/odata/ works, /odata/ doesn't work.

I tried to add --dhus into console, and that's okay for first file granule_dir or something like that, but then he tries to download from /odata/ all other files.

Help?

[Milutinke92]

I tried to modify your API, to insert /dhus/ in every link.
The download start. But on some link same error: SSL Connection could not be establish.

I upload you log.txt file to see console output: http://www102.zippyshare.com/v/H9TsdBND/file.html

[Milutinke92]

This is fresh copy of API downloaded from here. When I add --dhus same error.

And one more thing. it happens that SSL conection sometimes apear on first file, sometimes on 10th and etc. no rule for that.

[olivierhagolle]

Thanks Milutinke92.
I have solved this issue (error 404) on Saturday, (it is due to an inconsistency within the files provided by scihub) please pull again the reprository.
I am interested to know if it solves the problem for you too

Regarding the SSL issue, I have never seen it on my side, so I do not know how I can resolve it. Maybe is it a problem with your proxy ?
Olivier

[Milutinke92]

I did and same issue.

wget --no-check-certificate --user="xxxx" --password="xxx" --continue --output-document=temp.xml "https://scihub.copernicus.eu/apihub/odata/v1/Products('c4f7c88d-c6b0-473a-879f-a9819f2f1113')/Nodes('S2A_OPER_PRD_MSIL1C_PDMC_20160620T201325_R051_V20160620T105336_20160620T105336.SAFE')/Nodes('HTML')/Nodes"
--2016-06-27 12:42:48-- https://scihub.copernicus.eu/apihub/odata/v1/Products('c4f7c88d-c6b0-473a-879f-a9819f2f1113')/Nodes('S2A_OPER_PRD_MSIL1C_PDMC_20160620T201325_R051_V20160620T105336_20160620T105336.SAFE')/Nodes('HTML')/Nodes
Resolving proxy.rcub.bg.ac.rs (proxy.rcub.bg.ac.rs)... 147.91.1.42, 147.91.1.43, 147.91.1.44, ...
Connecting to proxy.rcub.bg.ac.rs (proxy.rcub.bg.ac.rs)|147.91.1.42|:8080... connected.
Unable to establish SSL connection.
Traceback (most recent call last):
File "Sentinel_download.py", line 351, in
get_dir('HTML',url_html_dir,product_dir_name,wg,auth,wg_opt,value)
File "Sentinel_download.py", line 67, in get_dir
download_tree(product_dir_name+'/'+dir_name,"temp.xml",wg,auth,wg_opt,value)
File "Sentinel_download.py", line 40, in download_tree
urls,types,names=get_elements(xml_file)
File "Sentinel_download.py", line 29, in get_elements
line=fic.readlines()[0].split('')
IndexError: list index out of range
stefan@W04704:~/Downloads/Sentinel-download-master$

[olivierhagolle]

As I said, the new patch corrects for the error 404, but not for the issue with your proxy.
Maybe should you ask support from you proxy support.
Olivier

[Milutinke92]

It's something with our proxy on faculty. Thanks for all reply!