[cfinck] 39700: Add a tool for converting the plaintext SVN passwd file to an Apache-compatible htpasswd file (for SVN WebDAV support) This problem came up when updating our SVN Server VM and the tool is now used there, but might be useful to others as well.

Author: cfinck
Date: Sat Feb 21 22:51:30 2009
New Revision: 39700
URL: http://svn.reactos.org/svn/reactos?rev=39700&view=rev
Log:
Add a tool for converting the plaintext SVN passwd file to an Apache-compatible htpasswd
file (for SVN WebDAV support)
This problem came up when updating our SVN Server VM and the tool is now used there, but
might be useful to others as well.
Added:
    trunk/tools/csvnpass.c   (with props)
Added: trunk/tools/csvnpass.c
URL: http://svn.reactos.org/svn/reactos/trunk/tools/csvnpass.c?rev=39700&vie…
==============================================================================
--- trunk/tools/csvnpass.c (added)
+++ trunk/tools/csvnpass.c [iso-8859-1] Sat Feb 21 22:51:30 2009
@@ -1,0 +1,156 @@
+/* csvnpass - Convert SVN passwd files to Apache htpasswd format
+   by Colin Finck (2009-02-21)
+   Licensed under GNU General Public License, version 2 or (at your option) any later
version
+
+   loosely based on the original htpasswd.c by Rob McCool
+*/
+
+#include <crypt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+
+const char Base64Characters[] =
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz./";
+
+void AddEntry(char* User, char* Password, FILE* fp)
+{
+    char* CryptedPassword;
+    char Salt[3];
+
+    srand((unsigned int)time(NULL));
+    Salt[0] = Base64Characters[rand() % 64];
+    Salt[1] = Base64Characters[rand() % 64];
+    Salt[2] = 0;
+    CryptedPassword = crypt(Password, Salt);
+
+    fprintf(fp, "%s:%s\n", User, CryptedPassword);
+}
+
+void ProcessInput(char* pInput, FILE* fp)
+{
+    char InUsers = 0;
+    char* pLineBreak;
+    char* User;
+    size_t Length;
+
+    for(;;)
+    {
+        /* Find the line break character (if any) and set it to 0, so we can treat pInput
as a whole line */
+        pLineBreak = strchr(pInput, '\n');
+
+        if(!pLineBreak)
+            break;
+
+        *pLineBreak = 0;
+
+        if(InUsers)
+        {
+            while(isspace(*pInput))
+                ++pInput;
+
+            /* Break if we're at the beginning of a new section */
+            if(*pInput == '[')
+                break;
+
+            /* The line may not begin with a comment character either */
+            if(*pInput != '#')
+            {
+                /* The username ends at the equal sign or the first space */
+                Length = strcspn(pInput, "= ");
+
+                /* Store it */
+                User = malloc(Length + 1);
+                memcpy(User, pInput, Length);
+                User[Length] = 0;
+
+                /* Move to the password */
+                pInput += Length;
+                pInput += strspn(pInput, "= ");
+
+                /* Clear trailing password spaces (if any) */
+                Length = strcspn(pInput, " ");
+                pInput[Length] = 0;
+
+                AddEntry(User, pInput, fp);
+
+                free(User);
+            }
+        }
+        else if(!strcmp(pInput, "[users]"))
+        {
+            InUsers = 1;
+        }
+
+        /* Move to the next line */
+        pInput = pLineBreak + 1;
+    }
+}
+
+void PrintUsage()
+{
+    printf("csvnpass - Convert SVN passwd files to Apache htpasswd format\n");
+    printf("by Colin Finck (2009-02-21)\n");
+    printf("Usage: csvnpass input_file output_file\n");
+}
+
+int main(int argc, char *argv[])
+{
+    char InUsers = 0;
+    char* InputFile = NULL;
+    char* pEqual;
+    char* pInput;
+    char* pLineBreak;
+    char* User = NULL;
+    int ReturnValue = 1;
+    FILE* fp = NULL;
+    struct stat StatBuffer;
+
+    if(argc != 3)
+    {
+        PrintUsage();
+        goto Cleanup;
+    }
+
+    /* Read the entire input file */
+    fp = fopen(argv[1], "r");
+
+    if(!fp)
+    {
+        fprintf(stderr, "Could not open input file!\n");
+        goto Cleanup;
+    }
+
+    if(fstat(fileno(fp), &StatBuffer))
+    {
+        fprintf(stderr, "fstat failed for the input file!\n");
+        goto Cleanup;
+    }
+
+    InputFile = (char*)malloc(StatBuffer.st_size + 1);
+    fread(InputFile, StatBuffer.st_size, 1, fp);
+    InputFile[StatBuffer.st_size] = 0;
+    fclose(fp);
+
+    /* Open the output file */
+    fp = fopen(argv[2], "w");
+
+    if(!fp)
+    {
+        fprintf(stderr, "Could not open output file!\n");
+        goto Cleanup;
+    }
+
+    ProcessInput(InputFile, fp);
+    ReturnValue = 0;
+
+Cleanup:
+    if(fp)
+        fclose(fp);
+
+    if(InputFile)
+        free(InputFile);
+
+    return ReturnValue;
+}
Propchange: trunk/tools/csvnpass.c
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