From 660b569b0980fc8f71b03ed666dd02eec8388b4c Mon Sep 17 00:00:00 2001
From: Xavier Roche <xroche@users.noreply.github.com>
Date: Mon, 19 Mar 2012 12:59:03 +0000
Subject: httrack 3.41.2

---
 libtest/callbacks-example-simple.c | 89 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100755 libtest/callbacks-example-simple.c

(limited to 'libtest/callbacks-example-simple.c')

diff --git a/libtest/callbacks-example-simple.c b/libtest/callbacks-example-simple.c
new file mode 100755
index 0000000..e1f835a
--- /dev/null
+++ b/libtest/callbacks-example-simple.c
@@ -0,0 +1,89 @@
+/*
+    HTTrack external callbacks example : print all downloaded html documents
+
+    How to build: (callback.so or callback.dll)
+      With GNU-GCC:
+        gcc -O -g3 -Wall -D_REENTRANT -shared -o mycallback.so callbacks-example.c -lhttrack1
+      With MS-Visual C++:
+        cl -LD -nologo -W3 -Zi -Zp4 -DWIN32 -Fe"mycallback.dll" callbacks-example.c libhttrack1.lib
+
+      Note: the httrack library linker option is only necessary when using libhttrack's functions inside the callback
+
+    How to use:
+      httrack --wrapper mycallback ..
+*/
+
+/* system includes */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* standard httrack module includes */
+#include "httrack-library.h"
+#include "htsopt.h"
+#include "htsdefines.h"
+
+/* external functions */
+EXTERNAL_FUNCTION int hts_plug(httrackp *opt, const char* argv);
+EXTERNAL_FUNCTION int hts_unplug(httrackp *opt);
+
+/* local function called as "check_html" callback */
+static int process_file(t_hts_callbackarg /*the carg structure, holding various information*/*carg, /*the option settings*/httrackp *opt, 
+                        /*other parameters are callback-specific*/
+                        char* html, int len, const char* url_address, const char* url_file) {
+  void *ourDummyArg = (void*) CALLBACKARG_USERDEF(carg);    /*optional user-defined arg*/
+
+  /* call parent functions if multiple callbacks are chained. you can skip this part, if you don't want previous callbacks to be called. */
+  if (CALLBACKARG_PREV_FUN(carg, check_html) != NULL) {
+    if (!CALLBACKARG_PREV_FUN(carg, check_html)(CALLBACKARG_PREV_CARG(carg), opt,
+                                                html, len, url_address, url_file)) {
+        return 0;  /* abort */
+      }
+  }
+
+  printf("file %s%s content: %s\n", url_address, url_file, html);
+  return 1;  /* success */
+}
+
+/* local function called as "end" callback */
+static int end_of_mirror(t_hts_callbackarg /*the carg structure, holding various information*/*carg, /*the option settings*/httrackp *opt) {
+  void *ourDummyArg = (void*) CALLBACKARG_USERDEF(carg);    /*optional user-defined arg*/
+
+  /* processing */
+  fprintf(stderr, "That's all, folks!\n");
+
+  /* call parent functions if multiple callbacks are chained. you can skip this part, if you don't want previous callbacks to be called. */
+  if (CALLBACKARG_PREV_FUN(carg, end) != NULL) {
+    /* status is ok on our side, return other callabck's status */
+    return CALLBACKARG_PREV_FUN(carg, end)(CALLBACKARG_PREV_CARG(carg), opt);
+  }
+
+  return 1;  /* success */
+}
+
+/*
+module entry point
+the function name and prototype MUST match this prototype
+*/
+EXTERNAL_FUNCTION int hts_plug(httrackp *opt, const char* argv) {
+  /* optional argument passed in the commandline we won't be using here */
+  const char *arg = strchr(argv, ',');
+  if (arg != NULL)
+    arg++;
+
+  /* plug callback functions */
+  CHAIN_FUNCTION(opt, check_html, process_file, /*optional user-defined arg*/NULL);
+  CHAIN_FUNCTION(opt, end, end_of_mirror, /*optional user-defined arg*/NULL);
+
+  return 1;  /* success */
+}
+
+/*
+module exit point
+the function name and prototype MUST match this prototype
+*/
+EXTERNAL_FUNCTION int hts_unplug(httrackp *opt) {
+  fprintf(stderr, "Module unplugged");
+
+  return 1;  /* success */
+}
-- 
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