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PUBLIC
CREATE PUBLIC .
PUBLIC SECTION.
CONSTANTS:
BEGIN OF c_scheme,
digest TYPE string VALUE 'Digest',
END OF c_scheme .
CLASS-METHODS get_agent
RETURNING
VALUE(rv_agent) TYPE string .
TYPES: BEGIN OF ty_key_value,
key TYPE string,
value TYPE string,
END OF ty_key_value.
TYPES ty_headers TYPE STANDARD TABLE OF ty_key_value WITH DEFAULT KEY.
CLASS-METHODS create_by_url
IMPORTING
!iv_url TYPE string
!iv_service TYPE string
it_headers TYPE ty_headers OPTIONAL
RETURNING
VALUE(ro_client) TYPE REF TO zcl_abapgit_http_client
RAISING
zcx_abapgit_exception .
CLASS-METHODS check_connection
IMPORTING
!iv_url TYPE string
RAISING
zcx_abapgit_exception.
PROTECTED SECTION.
CLASS-METHODS check_auth_requested
IMPORTING
!ii_client TYPE REF TO if_http_client
RETURNING
VALUE(rv_auth_requested) TYPE abap_bool
RAISING
zcx_abapgit_exception .
CLASS-METHODS is_local_system
IMPORTING
!iv_url TYPE string
RETURNING
VALUE(rv_bool) TYPE abap_bool .
CLASS-METHODS acquire_login_details
IMPORTING
!ii_client TYPE REF TO if_http_client
!io_client TYPE REF TO zcl_abapgit_http_client
!iv_url TYPE string
RETURNING
VALUE(rv_scheme) TYPE string
RAISING
zcx_abapgit_exception .
CLASS-METHODS get_http_client
IMPORTING
!iv_url TYPE string
RETURNING
VALUE(ri_client) TYPE REF TO if_http_client
RAISING
zcx_abapgit_exception.
CLASS-METHODS get_connection_longtext
IMPORTING
!iv_host TYPE string
!iv_ssl_id TYPE ssfapplssl
!iv_proxy_host TYPE string
!iv_proxy_service TYPE string
RETURNING
VALUE(rv_longtext) TYPE string.
PRIVATE SECTION.
ENDCLASS.
CLASS zcl_abapgit_http IMPLEMENTATION.
METHOD acquire_login_details.
DATA: lv_default_user TYPE string,
lv_user TYPE string,
lv_pass TYPE string,
lo_digest TYPE REF TO zcl_abapgit_http_digest.
lv_default_user = zcl_abapgit_persistence_user=>get_instance( )->get_repo_login( iv_url ).
lv_user = lv_default_user.
zcl_abapgit_password_dialog=>popup(
EXPORTING
iv_repo_url = iv_url
CHANGING
cv_user = lv_user
cv_pass = lv_pass ).
IF lv_user IS INITIAL.
zcx_abapgit_exception=>raise( 'Unauthorized access. Check your credentials' ).
ENDIF.
IF lv_user <> lv_default_user.
zcl_abapgit_persistence_user=>get_instance( )->set_repo_login(
iv_url = iv_url
iv_login = lv_user ).
ENDIF.
rv_scheme = ii_client->response->get_header_field( 'www-authenticate' ).
FIND REGEX '^(\w+)' IN rv_scheme SUBMATCHES rv_scheme.
CASE rv_scheme.
WHEN c_scheme-digest.
* https://en.wikipedia.org/wiki/Digest_access_authentication
* e.g. used by https://www.gerritcodereview.com/
CREATE OBJECT lo_digest
EXPORTING
ii_client = ii_client
iv_username = lv_user
iv_password = lv_pass.
lo_digest->run( ii_client ).
io_client->set_digest( lo_digest ).
WHEN OTHERS.
* https://en.wikipedia.org/wiki/Basic_access_authentication
ii_client->authenticate(
username = lv_user
password = lv_pass ).
ENDCASE.
ENDMETHOD.
METHOD check_auth_requested.
DATA: lv_code TYPE i.
ii_client->response->get_status( IMPORTING code = lv_code ).
IF lv_code = 401.
rv_auth_requested = abap_true.
ENDIF.
ENDMETHOD.
METHOD check_connection.
" Check if a connection from this system to the git host is possible
" This will validate the general HTTP/HTTPS/SSL configuration and certificates
get_http_client( iv_url ).
ENDMETHOD.
METHOD create_by_url.
DATA: lv_uri TYPE string,
lv_scheme TYPE string,
lv_authorization TYPE string,
li_client TYPE REF TO if_http_client,
ls_header LIKE LINE OF it_headers.
li_client = get_http_client( iv_url ).
CREATE OBJECT ro_client
EXPORTING
ii_client = li_client.
IF is_local_system( iv_url ) = abap_true.
li_client->send_sap_logon_ticket( ).
ENDIF.
li_client->request->set_cdata( '' ).
li_client->request->set_header_field(
name = '~request_method'
value = 'GET' ).
li_client->request->set_header_field(
name = 'user-agent'
value = get_agent( ) ).
lv_uri = zcl_abapgit_url=>path_name( iv_url ) &&
'/info/refs?service=git-' &&
iv_service &&
'-pack'.
li_client->request->set_header_field(
name = '~request_uri'
value = lv_uri ).
LOOP AT it_headers INTO ls_header.
li_client->request->set_header_field(
name = ls_header-key
value = ls_header-value ).
ENDLOOP.
" Disable internal auth dialog (due to its unclarity)
li_client->propertytype_logon_popup = if_http_client=>co_disabled.
lv_authorization = zcl_abapgit_login_manager=>load( iv_url ).
IF lv_authorization IS NOT INITIAL.
li_client->request->set_header_field(
name = 'authorization'
value = lv_authorization ).
li_client->propertytype_logon_popup = li_client->co_disabled.
ENDIF.
li_client->request->set_version( if_http_request=>co_protocol_version_1_1 ).
zcl_abapgit_exit=>get_instance( )->http_client(
iv_url = iv_url
ii_client = li_client ).
ro_client->send_receive( ).
IF check_auth_requested( li_client ) = abap_true.
lv_scheme = acquire_login_details( ii_client = li_client
io_client = ro_client
iv_url = iv_url ).
ro_client->send_receive( ).
ENDIF.
ro_client->check_http_200( ).
IF lv_scheme <> c_scheme-digest.
zcl_abapgit_login_manager=>save(
iv_uri = iv_url
iv_authorization = li_client->request->get_header_field( 'authorization' ) ).
ENDIF.
ENDMETHOD.
METHOD get_agent.
* bitbucket require agent prefix = "git/"
* also see https://github.com/abapGit/abapGit/issues/1432
rv_agent = |git/2.0 (abapGit { zif_abapgit_version=>c_abap_version })|.
ENDMETHOD.
METHOD get_connection_longtext.
CONSTANTS lc_docs TYPE string VALUE 'https://docs.abapgit.org/user-guide/setup/ssl-setup.html'.
DATA lv_proxy TYPE string.
IF iv_proxy_host IS NOT INITIAL.
lv_proxy = | via proxy <b>{ iv_proxy_host }:{ iv_proxy_service }</b>|.
ENDIF.
rv_longtext = |abapGit is trying to connect to <b>{ iv_host }</b> |
&& |using SSL certificates under <b>{ iv_ssl_id }</b>{ lv_proxy }. |
&& |Check system parameters (transaction |
&& zcl_abapgit_html=>create( )->a(
iv_txt = 'RZ10'
iv_act = |{ zif_abapgit_definitions=>c_action-jump_transaction }?transaction=RZ10|
iv_class = 'no-pad' )
&& |), SSL setup (transaction |
&& zcl_abapgit_html=>create( )->a(
iv_txt = 'STRUST'
iv_act = |{ zif_abapgit_definitions=>c_action-jump_transaction }?transaction=STRUST|
iv_class = 'no-pad' )
&& |), Internet connection monitor (transaction |
&& zcl_abapgit_html=>create( )->a(
iv_txt = 'SMICM'
iv_act = |{ zif_abapgit_definitions=>c_action-jump_transaction }?transaction=SMICM|
iv_class = 'no-pad' )
&& |)|.
IF lv_proxy IS NOT INITIAL.
rv_longtext = rv_longtext
&& |, and proxy configuration (|
&& zcl_abapgit_html=>create( )->a(
iv_txt = 'global settings'
iv_act = |{ zif_abapgit_definitions=>c_action-go_settings }|
iv_class = 'no-pad' )
&& |)|.
ENDIF.
rv_longtext = rv_longtext
&& |. It's recommended to get your SAP Basis and network teams involved. |
&& |For more information and troubleshooting, see the |
&& zcl_abapgit_html=>create( )->a(
iv_txt = 'abapGit documentation'
iv_act = |{ zif_abapgit_definitions=>c_action-url }?url={ lc_docs }|
iv_class = 'no-pad' )
&& |.|.
ENDMETHOD.
METHOD get_http_client.
DATA:
lv_error TYPE string,
lv_longtext TYPE string,
lv_host TYPE string,
lv_ssl_id TYPE ssfapplssl,
lv_proxy_host TYPE string,
lv_proxy_service TYPE string,
lo_proxy_configuration TYPE REF TO zcl_abapgit_proxy_config.
CREATE OBJECT lo_proxy_configuration.
ri_client = zcl_abapgit_exit=>get_instance( )->create_http_client( iv_url ).
IF ri_client IS INITIAL.
lv_host = zcl_abapgit_url=>host( iv_url ).
lv_ssl_id = zcl_abapgit_exit=>get_instance( )->get_ssl_id( ).
lv_proxy_host = lo_proxy_configuration->get_proxy_url( iv_url ).
lv_proxy_service = lo_proxy_configuration->get_proxy_port( iv_url ).
lv_longtext = get_connection_longtext(
iv_host = lv_host
iv_ssl_id = lv_ssl_id
iv_proxy_host = lv_proxy_host
iv_proxy_service = lv_proxy_service ).
cl_http_client=>create_by_url(
EXPORTING
url = lv_host
ssl_id = lv_ssl_id
proxy_host = lv_proxy_host
proxy_service = lv_proxy_service
IMPORTING
client = ri_client
EXCEPTIONS
argument_not_found = 1
plugin_not_active = 2
internal_error = 3
OTHERS = 4 ).
IF sy-subrc <> 0.
CASE sy-subrc.
WHEN 1.
lv_error = 'ARGUMENT_NOT_FOUND'.
WHEN 2.
lv_error = 'PLUGIN_NOT_ACTIVE'.
WHEN 3.
lv_error = 'INTERNAL_ERROR'.
WHEN OTHERS.
lv_error = |OTHER_ERROR_{ sy-subrc }|.
ENDCASE.
zcx_abapgit_exception=>raise(
iv_text = |Error { lv_error } creating HTTP connection. Check the configuration|
iv_longtext = lv_longtext ).
ENDIF.
ENDIF.
IF lo_proxy_configuration->get_proxy_authentication( iv_url ) = abap_true.
zcl_abapgit_proxy_auth=>run( ri_client ).
ENDIF.
ENDMETHOD.
METHOD is_local_system.
DATA: lv_host TYPE string,
lt_list TYPE zif_abapgit_definitions=>ty_string_tt,
li_exit TYPE REF TO zif_abapgit_exit.
cl_http_server=>get_location( IMPORTING host = lv_host ).
APPEND lv_host TO lt_list.
APPEND 'localhost' TO lt_list.
li_exit = zcl_abapgit_exit=>get_instance( ).
li_exit->change_local_host( CHANGING ct_hosts = lt_list ).
FIND REGEX 'https?://([^/^:]*)' IN iv_url SUBMATCHES lv_host.
READ TABLE lt_list WITH KEY table_line = lv_host TRANSPORTING NO FIELDS.
rv_bool = boolc( sy-subrc = 0 ).
ENDMETHOD.
ENDCLASS.
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