2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
4 * Copyright 2019 Olaf Wintermann. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
35 #include <ucx/string.h>
36 #include <ucx/buffer.h>
37 #include <ucx/utils.h>
38 #include <libxml/tree.h>
39 #include <curl/curl.h>
43 #define getpasswordchar() getch()
44 #define IS_PATH_SEPARATOR(c) (c == '/' || c == '\\')
45 #define PATH_SEPARATOR '\\'
48 #define getpasswordchar() getchar()
49 #define IS_PATH_SEPARATOR(c) (c == '/')
50 #define PATH_SEPARATOR '/'
59 #include <openssl/hmac.h>
60 #include <openssl/evp.h>
61 #include <openssl/bio.h>
62 #include <openssl/buffer.h>
63 #include <openssl/rand.h>
66 static size_t extractval(sstr_t str, char *result, char delim) {
68 for(size_t i = 0; i < str.length ; i++) {
69 if(isdigit(str.ptr[i])) {
70 result[n++] = str.ptr[i];
71 } else if(str.ptr[i] != delim) {
79 static time_t parse_iso8601(char *iso8601str) {
88 memset(&tparts, 0, sizeof(struct tm));
92 // work on the trimmed string
93 sstr_t date = sstrtrim(sstr(iso8601str));
95 sstr_t time = sstrchr(date, 'T');
96 if(time.length == 0) {
99 date.length = time.ptr - date.ptr;
100 time.ptr++; time.length--;
103 if((tzinfo = sstrchr(time, 'Z')).length > 0 ||
104 (tzinfo = sstrchr(time, '+')).length > 0 ||
105 (tzinfo = sstrchr(time, '-')).length > 0) {
107 time.length = tzinfo.ptr - time.ptr;
111 if((date.length != 8 && date.length != 10)
112 || extractval(date, conv , '-') != 8) {
116 if(val < 19000000L) {
119 tparts.tm_mday = val % 100;
120 tparts.tm_mon = (val % 10000) / 100 - 1;
121 tparts.tm_year = val / 10000 - 1900;
123 // parse time and skip possible fractional seconds
125 if((frac = sstrchr(time, '.')).length > 0 ||
126 (frac = sstrchr(time, ',')).length > 0) {
127 time.length = frac.ptr - time.ptr;
129 if((time.length != 6 && time.length != 8)
130 || extractval(time, conv , ':') != 6) {
134 tparts.tm_sec = val % 100;
135 tparts.tm_min = (val % 10000) / 100;
136 tparts.tm_hour = val / 10000;
139 // parse time zone (if any)
140 if(tzinfo.length == 0) {
142 tparts.tm_isdst = -1;
143 return mktime(&tparts);
144 } else if(!sstrcmp(tzinfo, S("Z"))) {
146 return timegm(&tparts);
148 return mktime(&tparts) - timezone;
150 } else if(tzinfo.ptr[0] == '+' || tzinfo.ptr[0] == '-') {
151 int sign = (tzinfo.ptr[0] == '+') ? -1 : 1;
153 if(tzinfo.length > 6) {
156 tzinfo.ptr++; tzinfo.length--;
157 extractval(tzinfo, conv, ':');
159 val = 60 * (val / 100) + (val % 100);
161 return timegm(&tparts) + (time_t) (60 * val * sign);
163 return mktime(&tparts) - timezone + (time_t) (60 * val * sign);
172 time_t util_parse_creationdate(char *str) {
173 // parse a ISO-8601 date (rfc-3339)
174 // example: 2012-11-29T21:35:35Z
179 return parse_iso8601(str);
182 time_t util_parse_lastmodified(char *str) {
183 // parse a rfc-1123 date
184 // example: Thu, 29 Nov 2012 21:35:35 GMT
188 time_t result = curl_getdate(str, NULL);
190 // fall back to the ISO-8601 format (e.g. Microsoft Sharepoint
191 // illegally uses this format for lastmodified, but also some
192 // users might want to give an ISO-8601 date)
193 return util_parse_creationdate(str);
200 int util_getboolean(const char *v) {
201 if(v[0] == 'T' || v[0] == 't') {
207 int util_strtouint(const char *str, uint64_t *value) {
210 uint64_t val = strtoull(str, &end, 0);
219 int util_strtoint(const char *str, int64_t *value) {
222 int64_t val = strtoll(str, &end, 0);
231 int util_szstrtouint(const char *str, uint64_t *value) {
234 size_t len = strlen(str);
235 uint64_t val = strtoull(str, &end, 0);
239 } else if(end == str+len-1) {
243 case 'K': mul = 1024; break;
245 case 'M': mul = 1024*1024; break;
247 case 'G': mul = 1024*1024*1024; break;
252 if(util_uint_mul(val, mul, &result)) {
261 int util_uint_mul(uint64_t a, uint64_t b, uint64_t *result) {
262 if(a == 0 || b == 0) {
276 char* util_url_base_s(sstr_t url) {
280 if(sstrprefix(url, SC("http://"))) {
282 } else if(sstrprefix(url, SC("https://"))) {
288 for(i=0;i<url.length;i++) {
289 if(url.ptr[i] == '/') {
291 if(slashcount == slmax) {
298 sstr_t server = sstrsubsl(url, 0, i);
299 return sstrdup(server).ptr;
302 char* util_url_base(char *url) {
303 return util_url_base_s(sstr(url));
306 char* util_url_path(char *url) {
308 size_t len = strlen(url);
311 if(len > 7 && !strncasecmp(url, "http://", 7)) {
313 } else if(len > 8 && !strncasecmp(url, "https://", 8)) {
319 for(int i=0;i<len;i++) {
323 if(slashcount == slmax) {
330 path = url + len; // empty string
335 char* util_url_decode(DavSession *sn, char *url) {
336 char *unesc = curl_easy_unescape(sn->handle, url, strlen(url), NULL);
337 char *ret = strdup(unesc);
342 static size_t util_header_callback(char *buffer, size_t size,
343 size_t nitems, void *data) {
345 sstr_t sbuffer = sstrn(buffer, size*nitems);
347 UcxMap *map = (UcxMap*) data;
349 // if we get a status line, clear the map and exit
350 if(sstrprefix(sbuffer, S("HTTP/"))) {
351 ucx_map_free_content(map, free);
356 // if we get the terminating CRLF, just exit
357 if(!sstrcmp(sbuffer, S("\r\n"))) {
361 sstr_t key = sbuffer;
362 sstr_t value = sstrchr(sbuffer, ':');
364 if(value.length == 0) {
365 return 0; // invalid header line
368 key.length = value.ptr - key.ptr;
369 value.ptr++; value.length--;
371 key = sstrlower(sstrtrim(key));
372 value = sstrdup(sstrtrim(value));
374 ucx_map_sstr_put(map, key, value.ptr);
378 return sbuffer.length;
381 int util_path_isrelated(const char *path1, const char *path2) {
382 scstr_t p1 = scstr(path1);
383 scstr_t p2 = scstr(path2);
385 if(IS_PATH_SEPARATOR(p1.ptr[p1.length-1])) {
388 if(IS_PATH_SEPARATOR(p2.ptr[p2.length-1])) {
392 if(p2.length < p1.length) {
396 if(!sstrcmp(p1, p2)) {
400 if(sstrprefix(p2, p1)) {
401 if(IS_PATH_SEPARATOR(p2.ptr[p1.length])) {
410 int util_path_isabsolut(const char *path) {
411 if(strlen(path) < 3) {
415 // check if first char is A-Z or a-z
417 if(!((c >= 65 && c <= 90) || (c >= 97 && c <= 122))) {
421 if(path[1] == ':' && path[2] == '\\') {
427 int util_path_isabsolut(const char *path) {
428 return path[0] == '/';
432 char* util_path_normalize(const char *path) {
433 size_t len = strlen(path);
434 UcxBuffer *buf = ucx_buffer_new(NULL, len+1, UCX_BUFFER_AUTOEXTEND);
437 ucx_buffer_putc(buf, '/');
440 int add_separator = 0;
442 for(int i=0;i<=len;i++) {
444 if(IS_PATH_SEPARATOR(c) || c == '\0') {
445 const char *seg_ptr = path+seg_start;
446 int seg_len = i - seg_start;
447 if(IS_PATH_SEPARATOR(seg_ptr[0])) {
453 scstr_t seg = scstrn(seg_ptr, seg_len);
454 if(!sstrcmp(seg, SC(".."))) {
455 for(int j=buf->pos;j>=0;j--) {
456 char t = buf->space[j];
457 if(IS_PATH_SEPARATOR(t) || j == 0) {
461 add_separator = IS_PATH_SEPARATOR(t) ? 1 : 0;
465 } else if(!sstrcmp(seg, SC("."))) {
469 ucx_buffer_putc(buf, PATH_SEPARATOR);
471 ucx_buffer_write(seg_ptr, 1, seg_len, buf);
480 ucx_buffer_putc(buf, 0);
483 char *space = buf->space;
484 buf->flags = 0; // disable autofree
485 ucx_buffer_free(buf);
489 static char* create_relative_path(const char *abspath, const char *base) {
490 size_t path_len = strlen(abspath);
491 size_t base_len = strlen(base);
493 if(IS_PATH_SEPARATOR(abspath[path_len-1])) {
496 if(IS_PATH_SEPARATOR(base[base_len-1])) {
500 for(int i=base_len-1;i>=0;i--) {
501 if(IS_PATH_SEPARATOR(base[i])) {
507 size_t max = path_len > base_len ? base_len : path_len;
509 // get prefix of abspath and base
510 // this dir is the root of the link
517 } else if(IS_PATH_SEPARATOR(c)) {
523 UcxBuffer *out = NULL;
524 if(last_dir+1 < base_len) {
525 // base is deeper than the link root, we have to go backwards
527 for(int i=last_dir+1;i<base_len;i++) {
528 if(IS_PATH_SEPARATOR(base[i])) {
533 out = ucx_buffer_new(NULL, dircount*3+path_len-last_dir, UCX_BUFFER_AUTOEXTEND);
535 for(int i=0;i<dircount;i++) {
536 ucx_buffer_puts(out, "../");
539 out = ucx_buffer_new(NULL, 1024, path_len - last_dir);
542 ucx_buffer_puts(out, abspath + last_dir + 1);
543 ucx_buffer_putc(out, 0);
546 ucx_buffer_free(out);
552 char* util_create_relative_path(const char *abspath, const char *base) {
553 char *abspath_converted = strdup(abspath);
554 char *base_converted = strdup(base);
555 size_t abs_len = strlen(abspath_converted);
556 size_t base_len = strlen(base_converted);
558 for(int i=0;i<abs_len;i++) {
559 if(abspath_converted[i] == '\\') {
560 abspath_converted[i] = '/';
563 for(int i=0;i<base_len;i++) {
564 if(base_converted[i] == '\\') {
565 base_converted[i] = '/';
569 char *ret = create_relative_path(abspath_converted, base_converted);
570 free(abspath_converted);
571 free(base_converted);
575 char* util_create_relative_path(const char *abspath, const char *base) {
576 return create_relative_path(abspath, base);
581 void util_capture_header(CURL *handle, UcxMap* map) {
583 curl_easy_setopt(handle, CURLOPT_HEADERFUNCTION, util_header_callback);
584 curl_easy_setopt(handle, CURLOPT_HEADERDATA, map);
586 curl_easy_setopt(handle, CURLOPT_HEADERFUNCTION, NULL);
587 curl_easy_setopt(handle, CURLOPT_HEADERDATA, NULL);
591 char* util_resource_name(char *url) {
592 sstr_t urlstr = sstr(url);
593 if(urlstr.ptr[urlstr.length-1] == '/') {
596 sstr_t resname = sstrrchr(urlstr, '/');
597 if(resname.length > 1) {
598 return resname.ptr+1;
604 int util_mkdir(char *path, mode_t mode) {
608 return mkdir(path, mode);
612 char* util_concat_path(const char *url_base, const char *p) {
613 sstr_t base = sstr((char*)url_base);
616 path = sstr((char*)p);
621 int add_separator = 0;
622 if(base.length != 0 && base.ptr[base.length-1] == '/') {
623 if(path.ptr[0] == '/') {
627 if(path.length == 0 || path.ptr[0] != '/') {
634 url = sstrcat(3, base, sstr("/"), path);
636 url = sstrcat(2, base, path);
642 char* util_get_url(DavSession *sn, const char *href) {
643 scstr_t base = scstr(sn->base_url);
644 scstr_t href_str = scstr(href);
646 char *base_path = util_url_path(sn->base_url);
647 base.length -= strlen(base_path);
649 sstr_t url = sstrcat(2, base, href_str);
653 void util_set_url(DavSession *sn, const char *href) {
654 char *url = util_get_url(sn, href);
655 curl_easy_setopt(sn->handle, CURLOPT_URL, url);
659 char* util_path_to_url(DavSession *sn, char *path) {
660 char *space = malloc(256);
661 UcxBuffer *url = ucx_buffer_new(space, 256, UCX_BUFFER_AUTOEXTEND);
664 ucx_buffer_write(sn->base_url, 1, strlen(sn->base_url), url);
665 // remove trailing slash
666 ucx_buffer_seek(url, -1, SEEK_CUR);
668 sstr_t p = sstr(path);
670 sstr_t *tks = sstrsplit(p, S("/"), &ntk);
672 for(int i=0;i<ntk;i++) {
673 sstr_t node = tks[i];
674 if(node.length > 0) {
675 char *esc = curl_easy_escape(sn->handle, node.ptr, node.length);
676 ucx_buffer_putc(url, '/');
677 ucx_buffer_write(esc, 1, strlen(esc), url);
683 if(path[p.length-1] == '/') {
684 ucx_buffer_putc(url, '/');
686 ucx_buffer_putc(url, 0);
689 ucx_buffer_free(url);
694 char* util_parent_path(const char *path) {
695 char *name = util_resource_name((char*)path);
696 size_t namelen = strlen(name);
697 size_t pathlen = strlen(path);
698 size_t parentlen = pathlen - namelen;
699 char *parent = malloc(parentlen + 1);
700 memcpy(parent, path, parentlen);
701 parent[parentlen] = '\0';
705 char* util_size_str(DavBool iscollection, uint64_t contentlength) {
706 char *str = malloc(16);
707 uint64_t size = contentlength;
710 str[0] = '\0'; // currently no information for collections
711 } else if(size < 0x400) {
712 snprintf(str, 16, "%" PRIu64 " bytes", size);
713 } else if(size < 0x100000) {
714 float s = (float)size/0x400;
715 int diff = (s*100 - (int)s*100);
720 if(size < 0x2800 && diff != 0) {
722 snprintf(str, 16, "%.1f KiB", s);
724 snprintf(str, 16, "%.0f KiB", s);
726 } else if(size < 0x40000000) {
727 float s = (float)size/0x100000;
728 int diff = (s*100 - (int)s*100);
733 if(size < 0xa00000 && diff != 0) {
735 snprintf(str, 16, "%.1f MiB", s);
738 snprintf(str, 16, "%.0f MiB", s);
740 } else if(size < 0x1000000000ULL) {
741 float s = (float)size/0x40000000;
742 int diff = (s*100 - (int)s*100);
747 if(size < 0x280000000 && diff != 0) {
749 snprintf(str, 16, "%.1f GiB", s);
752 snprintf(str, 16, "%.0f GiB", s);
756 float s = (float)size/0x40000000;
757 int diff = (s*100 - (int)s*100);
762 if(size < 0x280000000 && diff != 0) {
764 snprintf(str, 16, "%.1f TiB", s);
767 snprintf(str, 16, "%.0f TiB", s);
773 char* util_date_str(time_t tm) {
776 time_t now = time(NULL);
778 memcpy(&t, localtime(&tm), sizeof(struct tm));
779 memcpy(&n, localtime(&now), sizeof(struct tm));
781 localtime_r(&tm, &t);
782 localtime_r(&now, &n);
784 char *str = malloc(16);
785 if(t.tm_year == n.tm_year) {
786 strftime(str, 16, "%b %d %H:%M", &t);
788 strftime(str, 16, "%b %d %Y", &t);
794 char* util_xml_get_text(const xmlNode *elm) {
795 xmlNode *node = elm->children;
797 if(node->type == XML_TEXT_NODE) {
798 return (char*)node->content;
806 char* util_base64decode(const char *in) {
808 return util_base64decode_len(in, &len);
811 #define WHITESPACE 64
814 static char b64dectable[] = {
815 66,66,66,66,66,66,66,66,66,66,64,66,66,66,66,66,66,66,66,66,66,66,66,66,66,
816 66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,62,66,66,66,63,52,53,
817 54,55,56,57,58,59,60,61,66,66,66,65,66,66,66, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
818 10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,66,66,66,66,66,66,26,27,28,
819 29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,66,66,
820 66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,
821 66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,
822 66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,
823 66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,
824 66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,
827 char* util_base64decode_len(const char* in, int *outlen) {
828 /* code is mostly from wikibooks */
835 size_t inlen = strlen(in);
836 size_t bufsize = (inlen*3) / 4;
837 char *outbuf = malloc(bufsize+1);
840 unsigned char *out = (unsigned char*)outbuf;
842 const char *end = in + inlen;
848 unsigned char c = b64dectable[*in++];
851 case WHITESPACE: continue; /* skip whitespace */
858 /* pad character, end of data */
864 iter++; // increment the number of iteration
865 /* If the buffer is full, split it into bytes */
867 if ((len += 3) > bufsize) {
868 /* buffer overflow */
872 *(out++) = (buf >> 16) & 255;
873 *(out++) = (buf >> 8) & 255;
874 *(out++) = buf & 255;
883 if ((len += 2) > bufsize) {
884 /* buffer overflow */
888 *(out++) = (buf >> 10) & 255;
889 *(out++) = (buf >> 2) & 255;
891 else if (iter == 2) {
892 if (++len > bufsize) {
893 /* buffer overflow */
897 *(out++) = (buf >> 4) & 255;
900 *outlen = len; /* modify to reflect the actual output size */
906 static char* b64enctable = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
907 char* util_base64encode(const char *in, size_t len) {
908 // calculate length of base64 output and create buffer
909 size_t outlen = 4 * ((len + 2) / 3);
912 char *out = malloc(outlen + 1);
916 // encode blocks of 3 bytes
918 size_t blockend = len - pad;
919 for(i=0;i<blockend;i++) {
920 unsigned char b1 = in[i++];
921 unsigned char b2 = in[i++];
922 unsigned char b3 = in[i];
923 uint32_t inb = b1 << 16 | (b2 << 8) | b3;
924 out[pos++] = b64enctable[(inb >> 18) & 63];
925 out[pos++] = b64enctable[(inb >> 12) & 63];
926 out[pos++] = b64enctable[(inb >> 6) & 63];
927 out[pos++] = b64enctable[(inb) & 63];
932 char p[3] = {0, 0, 0};
933 for(int j=0;i<len;i++) {
936 unsigned char b1 = p[0];
937 unsigned char b2 = p[1];
938 unsigned char b3 = p[2];
939 uint32_t inb = (b1 << 16) | (b2 << 8) | b3;
940 out[pos++] = b64enctable[(inb >> 18) & 63];
941 out[pos++] = b64enctable[(inb >> 12) & 63];
942 out[pos++] = b64enctable[(inb >> 6) & 63];
943 out[pos++] = b64enctable[(inb) & 63];
944 for(int k=outlen-1;k>=outlen-(3-pad);k--) {
952 char* util_encrypt_str(DavSession *sn, char *str, char *key) {
953 DavKey *k = dav_context_get_key(sn->context, key);
955 sn->error = DAV_ERROR;
956 sstr_t err = ucx_sprintf("Key %s not found", key);
957 dav_session_set_errstr(sn, err.ptr);
962 return util_encrypt_str_k(sn, str, k);
965 char* util_encrypt_str_k(DavSession *sn, char *str, DavKey *key) {
966 char *enc_str = aes_encrypt(str, strlen(str), key);
967 char *ret_str = dav_session_strdup(sn, enc_str);
972 char* util_decrypt_str(DavSession *sn, char *str, char *key) {
973 DavKey *k = dav_context_get_key(sn->context, key);
975 sn->error = DAV_ERROR;
976 sstr_t err = ucx_sprintf("Key %s not found", key);
977 dav_session_set_errstr(sn, err.ptr);
982 return util_decrypt_str_k(sn, str, k);
985 char* util_decrypt_str_k(DavSession *sn, char *str, DavKey *key) {
987 char *dec_str = aes_decrypt(str, &len, key);
988 char *ret_str = dav_session_strdup(sn, dec_str);
993 char* util_random_str() {
994 unsigned char *str = malloc(25);
999 "abcdefghijklmnopqrstuvwxyz"
1000 "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
1001 const unsigned char *table = (const unsigned char*)t.ptr;
1003 #ifdef DAV_USE_OPENSSL
1004 RAND_bytes(str, 24);
1006 dav_rand_bytes(str, 24);
1008 for(int i=0;i<24;i++) {
1009 int c = str[i] % t.length;
1017 * gets a substring from 0 to the appearance of the token
1018 * tokens are separated by space
1019 * sets sub to the substring and returns the remaining string
1021 sstr_t util_getsubstr_until_token(sstr_t str, sstr_t token, sstr_t *sub) {
1023 int token_start = -1;
1025 for(i=0;i<=str.length;i++) {
1027 if(i == str.length) {
1033 if(token_start != -1) {
1035 size_t len = token_end - token_start;
1036 sstr_t tk = sstrsubsl(str, token_start, len);
1037 //printf("token: {%.*s}\n", token.length, token.ptr);
1038 if(!sstrcmp(tk, token)) {
1039 *sub = sstrtrim(sstrsubsl(str, 0, token_start));
1046 if(token_start == -1) {
1052 if(i < str.length) {
1053 return sstrtrim(sstrsubs(str, i));
1061 sstr_t util_readline(FILE *stream) {
1062 UcxBuffer *buf = ucx_buffer_new(NULL, 128, UCX_BUFFER_AUTOEXTEND);
1065 while((c = fgetc(stream)) != EOF) {
1069 ucx_buffer_putc(buf, c);
1072 sstr_t str = sstrdup(sstrtrim(sstrn(buf->space, buf->size)));
1073 ucx_buffer_free(buf);
1077 char* util_password_input(char *prompt) {
1078 fprintf(stderr, "%s", prompt);
1082 // hide terminal input
1083 struct termios oflags, nflags;
1084 tcgetattr(fileno(stdin), &oflags);
1086 nflags.c_lflag &= ~ECHO;
1087 nflags.c_lflag |= ECHONL;
1088 if (tcsetattr(fileno(stdin), TCSANOW, &nflags) != 0) {
1089 perror("tcsetattr");
1093 // read password input
1094 UcxBuffer *buf = ucx_buffer_new(NULL, 128, UCX_BUFFER_AUTOEXTEND);
1096 while((c = getpasswordchar()) != EOF) {
1097 if(c == '\n' || c == '\r') {
1100 ucx_buffer_putc(buf, c);
1102 ucx_buffer_putc(buf, 0);
1106 // restore terminal settings
1107 if (tcsetattr(fileno(stdin), TCSANOW, &oflags) != 0) {
1108 perror("tcsetattr");
1112 char *str = buf->space;
1113 free(buf); // only free the UcxBuffer struct
1118 char* util_hexstr(const unsigned char *data, size_t len) {
1119 size_t buflen = 2*len + 4;
1120 UcxBuffer *buf = ucx_buffer_new(malloc(buflen), buflen + 1, 0);
1121 for(int i=0;i<len;i++) {
1122 ucx_bprintf(buf, "%02x", data[i]);
1124 ucx_buffer_putc(buf, 0);
1125 char *str = buf->space;
1126 ucx_buffer_free(buf);
1130 void util_remove_trailing_pathseparator(char *path) {
1131 size_t len = strlen(path);
1136 if(path[len-1] == '/') {
1141 char* util_file_hash(const char *path) {
1142 FILE *in = fopen(path, "r");
1147 DAV_SHA_CTX *sha = dav_hash_init();
1148 char *buf = malloc(16384);
1151 while((r = fread(buf, 1, 16384, in)) > 0) {
1152 dav_hash_update(sha, buf, r);
1155 unsigned char hash[DAV_SHA256_DIGEST_LENGTH];
1156 dav_hash_final(sha, hash);
1160 return util_hexstr(hash, DAV_SHA256_DIGEST_LENGTH);