# process rules with disruptive actions
SecRuleEngine On

# allow body checks
SecRequestBodyAccess On

# enable XML parsing
SecRule REQUEST_HEADERS:Content-Type "(?:application(?:/soap\+|/)|text/)xml" \
     "id:'200000',phase:1,t:none,t:lowercase,pass,nolog,ctl:requestBodyProcessor=XML"

# enable JSON parsing
SecRule REQUEST_HEADERS:Content-Type "application/json" \
     "id:'200001',phase:1,t:none,t:lowercase,pass,nolog,ctl:requestBodyProcessor=JSON"

# maximum data size
SecRequestBodyLimit 13107200
SecRequestBodyNoFilesLimit 131072

# reject requests if bigger than max data size
SecRequestBodyLimitAction Reject

# reject if we can't process the body
SecRule REQBODY_ERROR "!@eq 0" \
"id:'200002', phase:2,t:none,log,deny,status:400,msg:'Failed to parse request body.',logdata:'%{reqbody_error_msg}',severity:2"

# be strict with multipart/form-data body
SecRule MULTIPART_STRICT_ERROR "!@eq 0" \
"id:'200003',phase:2,t:none,log,deny,status:400, \
msg:'Multipart request body failed strict validation: \
PE %{REQBODY_PROCESSOR_ERROR}, \
BQ %{MULTIPART_BOUNDARY_QUOTED}, \
BW %{MULTIPART_BOUNDARY_WHITESPACE}, \
DB %{MULTIPART_DATA_BEFORE}, \
DA %{MULTIPART_DATA_AFTER}, \
HF %{MULTIPART_HEADER_FOLDING}, \
LF %{MULTIPART_LF_LINE}, \
SM %{MULTIPART_MISSING_SEMICOLON}, \
IQ %{MULTIPART_INVALID_QUOTING}, \
IP %{MULTIPART_INVALID_PART}, \
IH %{MULTIPART_INVALID_HEADER_FOLDING}, \
FL %{MULTIPART_FILE_LIMIT_EXCEEDED}'"
SecRule MULTIPART_UNMATCHED_BOUNDARY "@eq 1" \
    "id:'200004',phase:2,t:none,log,deny,msg:'Multipart parser detected a possible unmatched boundary.'"

# enable response body checks
SecResponseBodyAccess On
SecResponseBodyMimeType text/plain text/html text/xml application/json
SecResponseBodyLimit 524288
SecResponseBodyLimitAction ProcessPartial

# log usefull stuff
SecAuditEngine {{ MODSECURITY_SEC_AUDIT_ENGINE }}
SecAuditLogType Serial
SecAuditLog /var/log/nginx/modsec_audit.log

# include OWASP CRS configuration
{% if USE_MODSECURITY_CRS == "yes" %}
include /opt/bunkerized-nginx/crs-setup.conf

# custom CRS configurations before loading rules (exclusions) 
{% if is_custom_conf("/opt/bunkerized-nginx/modsec-crs-confs") %}
include /opt/bunkerized-nginx/modsec-crs-confs/*.conf
{% endif %}
{% if MULTISITE == "yes" and is_custom_conf("/opt/bunkerized-nginx/modsec-crs-confs/" + FIRST_SERVER) %}
include /opt/bunkerized-nginx/modsec-crs-confs/{{ FIRST_SERVER }}/*.conf
{% endif %}

# include OWASP CRS rules
include /opt/bunkerized-nginx/crs/*.conf
{% endif %}

# custom rules after loading the CRS
{% if is_custom_conf("/opt/bunkerized-nginx/modsec-confs") %}
include /opt/bunkerized-nginx/modsec-confs/*.conf
{% endif %}
{% if MULTISITE == "yes" and is_custom_conf("/opt/bunkerized-nginx/modsec-confs/" + FIRST_SERVER) %}
include /opt/bunkerized-nginx/modsec-confs/{{ FIRST_SERVER }}/*.conf
{% endif %}