WIP: OctoPrint

xs/CMakeLists.txt

@@ -201,6 +201,8 @@ add_library(libslic3r_gui STATIC
     ${LIBDIR}/slic3r/GUI/wxExtensions.hpp
     ${LIBDIR}/slic3r/Utils/Http.cpp
     ${LIBDIR}/slic3r/Utils/Http.hpp
+    ${LIBDIR}/slic3r/Utils/OctoPrint.cpp
+    ${LIBDIR}/slic3r/Utils/OctoPrint.hpp
 )
 
 add_library(admesh STATIC
@@ -340,6 +342,7 @@ set(XS_XSP_FILES
     ${XSP_DIR}/Surface.xsp
     ${XSP_DIR}/SurfaceCollection.xsp
     ${XSP_DIR}/TriangleMesh.xsp
+    ${XSP_DIR}/Utils_OctoPrint.xsp
     ${XSP_DIR}/XS.xsp
 )
 foreach (file ${XS_XSP_FILES})

xs/src/libslic3r/PrintConfig.cpp

@@ -904,10 +904,17 @@ PrintConfigDef::PrintConfigDef()
     def->cli = "octoprint-apikey=s";
     def->default_value = new ConfigOptionString("");
     
+    def = this->add("octoprint_cafile", coString);
+    def->label = "HTTPS CA file";
+    def->tooltip = "Custom CA certificate file can be specified for HTTPS OctoPrint connections, in crt/pem format. "
+                   "If left blank, the default OS CA certificate repository is used.";
+    def->cli = "octoprint-cafile=s";
+    def->default_value = new ConfigOptionString("");
+
     def = this->add("octoprint_host", coString);
-    def->label = L("Host or IP");
+    def->label = L("Hostname, IP or URL");
     def->tooltip = L("Slic3r can upload G-code files to OctoPrint. This field should contain "
-                   "the hostname or IP address of the OctoPrint instance.");
+                   "the hostname, IP address or URL of the OctoPrint instance.");
     def->cli = "octoprint-host=s";
     def->default_value = new ConfigOptionString("");
 

xs/src/libslic3r/PrintConfig.hpp

@@ -684,6 +684,7 @@ class HostConfig : public StaticPrintConfig
 public:
     ConfigOptionString              octoprint_host;
     ConfigOptionString              octoprint_apikey;
+    ConfigOptionString              octoprint_cafile;
     ConfigOptionString              serial_port;
     ConfigOptionInt                 serial_speed;
     
@@ -692,6 +693,7 @@ protected:
     {
         OPT_PTR(octoprint_host);
         OPT_PTR(octoprint_apikey);
+        OPT_PTR(octoprint_cafile);
         OPT_PTR(serial_port);
         OPT_PTR(serial_speed);
     }

xs/src/perlglue.cpp

@@ -64,6 +64,7 @@ REGISTER_CLASS(PresetCollection, "GUI::PresetCollection");
 REGISTER_CLASS(PresetBundle, "GUI::PresetBundle");
 REGISTER_CLASS(PresetHints, "GUI::PresetHints");
 REGISTER_CLASS(TabIface, "GUI::Tab");
+REGISTER_CLASS(OctoPrint, "OctoPrint");
 
 SV* ConfigBase__as_hash(ConfigBase* THIS)
 {

xs/src/slic3r/GUI/GUI.cpp

@@ -5,9 +5,9 @@
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/lexical_cast.hpp>
-
 #include <boost/algorithm/string/split.hpp>
 #include <boost/algorithm/string/classification.hpp>
+#include <boost/format.hpp>
 
 #if __APPLE__
 #import <IOKit/pwr_mgt/IOPMLib.h>
@@ -570,4 +570,18 @@ wxString from_u8(std::string str)
 	return wxString::FromUTF8(str.c_str());
 }
 
+wxWindow *get_widget_by_id(int id)
+{
+    if (g_wxMainFrame == nullptr) {
+        throw std::runtime_error("Main frame not set");
+    }
+
+    wxWindow *window = g_wxMainFrame->FindWindow(id);
+    if (window == nullptr) {
+        throw std::runtime_error((boost::format("Could not find widget by ID: %1%") % id).str());
+    }
+
+    return window;
+}
+
 } }

xs/src/slic3r/GUI/GUI.hpp

@@ -6,6 +6,7 @@
 #include "Config.hpp"
 
 class wxApp;
+class wxWindow;
 class wxFrame;
 class wxWindow;
 class wxMenuBar;
@@ -118,6 +119,8 @@ wxString	L_str(std::string str);
 // Return wxString from std::string in UTF8
 wxString	from_u8(std::string str);
 
+wxWindow *get_widget_by_id(int id);
+
 }
 }
 

xs/src/slic3r/GUI/Preset.cpp

@@ -224,7 +224,7 @@ const std::vector<std::string>& Preset::printer_options()
     if (s_opts.empty()) {
         s_opts = {
             "bed_shape", "z_offset", "gcode_flavor", "use_relative_e_distances", "serial_port", "serial_speed", 
-            "octoprint_host", "octoprint_apikey", "use_firmware_retraction", "use_volumetric_e", "variable_layer_height", 
+            "octoprint_host", "octoprint_apikey", "octoprint_cafile", "use_firmware_retraction", "use_volumetric_e", "variable_layer_height",
             "single_extruder_multi_material", "start_gcode", "end_gcode", "before_layer_gcode", "layer_gcode", "toolchange_gcode",
             "between_objects_gcode", "printer_notes"
         };

xs/src/slic3r/Utils/OctoPrint.cpp

@@ -0,0 +1,105 @@
+#include "OctoPrint.hpp"
+
+#include <iostream>
+#include <boost/format.hpp>
+
+#include <wx/frame.h>
+#include <wx/event.h>
+
+#include "libslic3r/PrintConfig.hpp"
+#include "slic3r/GUI/GUI.hpp"
+#include "Http.hpp"
+
+
+namespace Slic3r {
+
+
+OctoPrint::OctoPrint(DynamicPrintConfig *config) :
+    host(config->opt_string("octoprint_host")),
+    apikey(config->opt_string("octoprint_apikey")),
+    cafile(config->opt_string("octoprint_cafile"))
+{}
+
+std::string  OctoPrint::test() const
+{
+    // Since the request is performed synchronously here,
+    // it is ok to refer to `res` from within the closure
+    std::string res;
+
+    auto http = Http::get(std::move(make_url("api/version")));
+    set_auth(http);
+    http.on_error([&](std::string, std::string error, unsigned status) {
+            res = format_error(error, status);
+        })
+        .perform_sync();
+
+    return res;
+}
+
+void OctoPrint::send_gcode(int windowId, int completeEvt, int errorEvt, const std::string &filename, bool print) const
+{
+    auto http = Http::post(std::move(make_url("api/files/local")));
+    set_auth(http);
+    http.form_add("print", print ? "true" : "false")
+        .form_add_file("file", filename)
+        .on_complete([=](std::string body, unsigned status) {
+            wxWindow *window = GUI::get_widget_by_id(windowId);
+            wxCommandEvent* evt = new wxCommandEvent(completeEvt);
+            evt->SetString("G-code file successfully uploaded to the OctoPrint server");
+            evt->SetInt(100);
+            wxQueueEvent(window, evt);
+        })
+        .on_error([=](std::string body, std::string error, unsigned status) {
+            wxWindow *window = GUI::get_widget_by_id(windowId);
+
+            wxCommandEvent* evt_complete = new wxCommandEvent(completeEvt);
+            evt_complete->SetInt(100);
+            wxQueueEvent(window, evt_complete);
+
+            wxCommandEvent* evt_error = new wxCommandEvent(errorEvt);
+            evt_error->SetString(wxString::Format("Error while uploading to the OctoPrint server: %s", format_error(error, status)));
+            wxQueueEvent(window, evt_error);
+        })
+        .perform();
+}
+
+void OctoPrint::set_auth(Http &http) const
+{
+    http.header("X-Api-Key", apikey);
+
+    if (! cafile.empty()) {
+        http.ca_file(cafile);
+    }
+}
+
+std::string OctoPrint::make_url(const std::string &path) const
+{
+    if (host.find("http://") == 0 || host.find("https://") == 0) {
+        if (host.back() == '/') {
+            return std::move((boost::format("%1%%2%") % host % path).str());
+        } else {
+            return std::move((boost::format("%1%/%2%") % host % path).str());
+        }
+    } else {
+        return std::move((boost::format("http://%1%/%2%") % host % path).str());
+    }
+}
+
+std::string OctoPrint::format_error(std::string error, unsigned status)
+{
+    if (status != 0) {
+        std::string res{"HTTP "};
+        res.append(std::to_string(status));
+
+        if (status == 401) {
+            res.append(": Invalid API key");
+        }
+
+        return std::move(res);
+    } else {
+        return std::move(error);
+    }
+}
+
+
+}

xs/src/slic3r/Utils/OctoPrint.hpp

@@ -0,0 +1,35 @@
+#ifndef slic3r_OctoPrint_hpp_
+#define slic3r_OctoPrint_hpp_
+
+#include <string>
+
+#include "Http.hpp"
+
+namespace Slic3r {
+
+
+class DynamicPrintConfig;
+class Http;
+
+class OctoPrint
+{
+public:
+    OctoPrint(DynamicPrintConfig *config);
+
+    std::string test() const;
+    // XXX: style
+    void send_gcode(int windowId, int completeEvt, int errorEvt, const std::string &filename, bool print = false) const;
+private:
+    std::string host;
+    std::string apikey;
+    std::string cafile;
+
+    void set_auth(Http &http) const;
+    std::string make_url(const std::string &path) const;
+    static std::string format_error(std::string error, unsigned status);
+};
+
+
+}
+
+#endif

xs/xsp/Utils_OctoPrint.xsp

@@ -0,0 +1,14 @@
+%module{Slic3r::XS};
+
+%{
+#include <xsinit.h>
+#include "slic3r/Utils/OctoPrint.hpp"
+%}
+
+%name{Slic3r::OctoPrint} class OctoPrint {
+    OctoPrint(DynamicPrintConfig *config);
+    ~OctoPrint();
+
+    std::string test() const;
+    void send_gcode(int windowId, int completeEvt, int errorEvt, std::string filename, bool print = false) const;
+};

xs/xsp/my.map

@@ -236,6 +236,10 @@ Ref<PresetHints>    		O_OBJECT_SLIC3R_T
 TabIface*	   				O_OBJECT_SLIC3R
 Ref<TabIface> 				O_OBJECT_SLIC3R_T
 
+OctoPrint*                  O_OBJECT_SLIC3R
+Ref<OctoPrint>              O_OBJECT_SLIC3R_T
+Clone<OctoPrint>            O_OBJECT_SLIC3R_T
+
 Axis                  T_UV
 ExtrusionLoopRole     T_UV
 ExtrusionRole     T_UV