Fixed spelling of captain.

1 files changed, 140 insertions, 0 deletions

diff --git a/captain/captain.f90 b/captain/captain.f90
new file mode 100644
index 0000000..76ea768
--- /dev/null
+++ b/captain/captain.f90
@@ -0,0 +1,140 @@
+! Copyright (c) 2021 Approximatrix, LLC <support@approximatrix.com>
+!
+! Permission is hereby granted, free of charge, to any person obtaining a copy
+! of this software and associated documentation files (the "Software"), to deal
+! in the Software without restriction, including without limitation the rights
+! to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+! copies of the Software, and to permit persons to whom the Software is
+! furnished to do so, subject to the following conditions:
+!
+! The above copyright notice and this permission notice shall be included in
+! all copies or substantial portions of the Software.
+!
+! The Software shall be used for Good, not Evil.
+!
+! THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+! AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+! OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+! SOFTWARE.
+
+program captain
+use captain_db
+use config
+use logging, only: initialize_log => initialize, shutdown_log => shutdown, write_log, LOG_INFO
+use gemini, only: handle_gemini => handle_request 
+use web, only: handle_web => handle_request 
+implicit none
+
+    integer::mode
+    integer, parameter::MODE_GEMINI   = 1, &
+                        MODE_CGI_HTML = 2
+
+    call random_seed() ! For possible crypto
+
+    call parse_options()
+
+    call initialize_log(log_filename, loglevel)
+
+    call initialize_db(database_filename)
+    
+    select case(mode)
+        case(MODE_GEMINI)
+            call handle_gemini()
+        case(MODE_CGI_HTML)
+            call handle_web()
+    end select
+    
+    call shutdown_db()
+    
+    call write_log("Process complete", LOG_INFO)
+    
+    call shutdown_log()
+    
+contains
+
+    subroutine usage()
+    implicit none
+    
+        character(len=256)::pname
+        
+        call get_command_argument(0, pname)
+    
+        Print *, "Usage: "//trim(pname)//" <options>"
+        Print *, " "
+        
+        Print *, "Options:"
+        Print *, "    -h              Display this help"
+        Print *, "    -c <configfile> Use the specified config file"
+        Print *, "    -g              Operate in Gemini mode"
+        Print *, "    -w              Operate in CGI mode (default)"
+        Print *, " "
+        Print *, "Config file can also be specified via the environment variables:"
+        Print *, "    LEVITATING_CONFIG_CGI     Path to config for CGI mode"
+        Print *, "    LEVITATING_CONFIG_GEMINI  Path to config for Gemini mode"
+        
+    end subroutine usage
+    
+    subroutine parse_options
+    use config
+    implicit none
+    
+        character(len=1024)::option
+        logical::config_loaded
+        integer::i
+
+        config_loaded = .false.
+        mode = MODE_CGI_HTML
+        loglevel = 3
+
+        i = 1
+        do while(i <= command_argument_count())
+            call get_command_argument(i, option)
+        
+            if(trim(option) == "-h") then
+                call usage()
+                stop
+            
+            else if(trim(option) == "-g") then
+                mode = MODE_GEMINI
+            
+            else if(trim(option) == "-c") then
+                i = i + 1
+                call get_command_argument(i, option)
+                call load_configuration(trim(option))
+                config_loaded = .true.
+
+            end if
+            
+            i = i + 1
+        end do
+        
+        if(.not. config_loaded) then
+            call get_environment_variable("LEVITATING_CONFIG_CGI", value=option, status=i)
+            if(i == 0) then
+                call load_configuration(trim(option))
+                config_loaded = .true.
+                mode = MODE_CGI_HTML
+            end if
+        end if
+        
+        if(.not. config_loaded) then
+            call get_environment_variable("LEVITATING_CONFIG_GEMINI", value=option, status=i)
+            if(i == 0) then
+                call load_configuration(trim(option))
+                config_loaded = .true.
+                mode = MODE_GEMINI
+            end if
+        end if
+        
+        ! Assign working directory from command if not specified
+        if(.not. config_loaded) then
+            Print *, "No configuration file specified"
+            stop
+        end if
+                
+    end subroutine parse_options
+    
+end program captain
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