1 | /* |
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2 | FTP file system |
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3 | Copyright (C) 2006 Robson Braga Araujo <robsonbraga@gmail.com> |
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4 | |
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5 | This program can be distributed under the terms of the GNU GPL. |
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6 | See the file COPYING. |
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7 | */ |
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8 | |
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9 | #include "config.h" |
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10 | |
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11 | #include <stdlib.h> |
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12 | #include <stdio.h> |
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13 | #include <ctype.h> |
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14 | #include <stdint.h> |
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15 | #include <errno.h> |
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16 | #include <string.h> |
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17 | #include <fcntl.h> |
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18 | #include <unistd.h> |
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19 | #include <netinet/in.h> |
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20 | #include <fuse.h> |
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21 | #include <fuse_opt.h> |
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22 | #include <glib.h> |
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23 | |
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24 | #include "charset_utils.h" |
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25 | #include "path_utils.h" |
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26 | #include "ftpfs-ls.h" |
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27 | #include "cache.h" |
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28 | #include "ftpfs.h" |
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29 | |
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30 | #define CURLFTPFS_BAD_NOBODY 0x070f02 |
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31 | #define CURLFTPFS_BAD_SSL 0x070f03 |
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32 | |
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33 | #define CURLFTPFS_BAD_READ ((size_t)-1) |
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34 | |
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35 | #define MAX_BUFFER_LEN (300*1024) |
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36 | |
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37 | struct ftpfs ftpfs; |
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38 | static char error_buf[CURL_ERROR_SIZE]; |
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39 | |
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40 | struct buffer { |
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41 | uint8_t* p; |
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42 | size_t len; |
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43 | size_t size; |
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44 | off_t begin_offset; |
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45 | }; |
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46 | |
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47 | static void usage(const char* progname); |
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48 | |
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49 | static inline void buf_init(struct buffer* buf, size_t size) |
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50 | { |
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51 | if (size) { |
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52 | buf->p = (uint8_t*) malloc(size); |
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53 | if (!buf->p) { |
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54 | fprintf(stderr, "ftpfs: memory allocation failed\n"); |
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55 | exit(1); |
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56 | } |
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57 | } else |
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58 | buf->p = NULL; |
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59 | buf->begin_offset = 0; |
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60 | buf->len = 0; |
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61 | buf->size = size; |
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62 | } |
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63 | |
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64 | static inline void buf_free(struct buffer* buf) |
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65 | { |
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66 | free(buf->p); |
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67 | } |
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68 | |
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69 | static inline void buf_finish(struct buffer *buf) |
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70 | { |
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71 | buf->len = buf->size; |
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72 | } |
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73 | |
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74 | |
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75 | static inline void buf_clear(struct buffer *buf) |
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76 | { |
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77 | buf_free(buf); |
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78 | buf_init(buf, 0); |
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79 | } |
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80 | |
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81 | static void buf_resize(struct buffer *buf, size_t len) |
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82 | { |
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83 | buf->size = (buf->len + len + 63) & ~31; |
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84 | buf->p = (uint8_t *) realloc(buf->p, buf->size); |
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85 | if (!buf->p) { |
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86 | fprintf(stderr, "ftpfs: memory allocation failed\n"); |
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87 | exit(1); |
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88 | } |
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89 | } |
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90 | |
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91 | static inline void buf_check_add(struct buffer *buf, size_t len) |
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92 | { |
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93 | if (buf->len + len > buf->size) |
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94 | buf_resize(buf, len); |
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95 | } |
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96 | |
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97 | #define _buf_add_mem(b, d, l) \ |
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98 | buf_check_add(b, l); \ |
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99 | memcpy(b->p + b->len, d, l); \ |
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100 | b->len += l; |
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101 | |
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102 | |
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103 | static inline void buf_add_mem(struct buffer *buf, const void *data, |
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104 | size_t len) |
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105 | { |
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106 | _buf_add_mem(buf, data, len); |
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107 | } |
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108 | |
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109 | static inline void buf_add_buf(struct buffer *buf, const struct buffer *bufa) |
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110 | { |
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111 | _buf_add_mem(buf, bufa->p, bufa->len); |
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112 | } |
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113 | |
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114 | static inline void buf_add_uint8(struct buffer *buf, uint8_t val) |
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115 | { |
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116 | _buf_add_mem(buf, &val, 1); |
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117 | } |
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118 | |
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119 | static inline void buf_add_uint32(struct buffer *buf, uint32_t val) |
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120 | { |
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121 | uint32_t nval = htonl(val); |
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122 | _buf_add_mem(buf, &nval, 4); |
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123 | } |
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124 | |
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125 | static inline void buf_add_uint64(struct buffer *buf, uint64_t val) |
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126 | { |
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127 | buf_add_uint32(buf, val >> 32); |
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128 | buf_add_uint32(buf, val & 0xffffffff); |
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129 | } |
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130 | |
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131 | static inline void buf_add_data(struct buffer *buf, const struct buffer *data) |
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132 | { |
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133 | buf_add_uint32(buf, data->len); |
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134 | buf_add_mem(buf, data->p, data->len); |
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135 | } |
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136 | |
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137 | static inline void buf_add_string(struct buffer *buf, const char *str) |
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138 | { |
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139 | struct buffer data; |
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140 | data.p = (uint8_t *) str; |
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141 | data.len = strlen(str); |
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142 | buf_add_data(buf, &data); |
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143 | } |
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144 | |
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145 | static int buf_check_get(struct buffer *buf, size_t len) |
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146 | { |
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147 | if (buf->len + len > buf->size) { |
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148 | fprintf(stderr, "buffer too short\n"); |
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149 | return -1; |
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150 | } else |
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151 | return 0; |
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152 | } |
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153 | |
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154 | static inline int buf_get_mem(struct buffer *buf, void *data, size_t len) |
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155 | { |
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156 | if (buf_check_get(buf, len) == -1) |
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157 | return -1; |
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158 | memcpy(data, buf->p + buf->len, len); |
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159 | buf->len += len; |
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160 | return 0; |
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161 | } |
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162 | |
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163 | static inline int buf_get_uint8(struct buffer *buf, uint8_t *val) |
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164 | { |
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165 | return buf_get_mem(buf, val, 1); |
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166 | } |
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167 | |
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168 | static inline int buf_get_uint32(struct buffer *buf, uint32_t *val) |
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169 | { |
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170 | uint32_t nval; |
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171 | if (buf_get_mem(buf, &nval, 4) == -1) |
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172 | return -1; |
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173 | *val = ntohl(nval); |
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174 | return 0; |
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175 | } |
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176 | |
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177 | static inline int buf_get_uint64(struct buffer *buf, uint64_t *val) |
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178 | { |
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179 | uint32_t val1; |
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180 | uint32_t val2; |
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181 | if (buf_get_uint32(buf, &val1) == -1 || buf_get_uint32(buf, &val2) == -1) |
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182 | return -1; |
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183 | *val = ((uint64_t) val1 << 32) + val2; |
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184 | return 0; |
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185 | } |
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186 | |
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187 | static inline int buf_get_data(struct buffer *buf, struct buffer *data) |
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188 | { |
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189 | uint32_t len; |
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190 | if (buf_get_uint32(buf, &len) == -1 || len > buf->size - buf->len) |
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191 | return -1; |
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192 | buf_init(data, len + 1); |
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193 | data->size = len; |
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194 | if (buf_get_mem(buf, data->p, data->size) == -1) { |
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195 | buf_free(data); |
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196 | return -1; |
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197 | } |
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198 | return 0; |
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199 | } |
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200 | |
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201 | static inline int buf_get_string(struct buffer *buf, char **str) |
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202 | { |
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203 | struct buffer data; |
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204 | if (buf_get_data(buf, &data) == -1) |
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205 | return -1; |
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206 | data.p[data.size] = '\0'; |
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207 | *str = (char *) data.p; |
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208 | return 0; |
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209 | } |
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210 | |
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211 | struct ftpfs_file { |
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212 | struct buffer buf; |
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213 | int dirty; |
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214 | int copied; |
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215 | off_t last_offset; |
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216 | int can_shrink; |
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217 | }; |
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218 | |
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219 | enum { |
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220 | KEY_HELP, |
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221 | KEY_VERBOSE, |
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222 | KEY_VERSION, |
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223 | }; |
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224 | |
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225 | #define FTPFS_OPT(t, p, v) { t, offsetof(struct ftpfs, p), v } |
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226 | |
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227 | static struct fuse_opt ftpfs_opts[] = { |
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228 | FTPFS_OPT("ftpfs_debug=%u", debug, 0), |
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229 | FTPFS_OPT("transform_symlinks", transform_symlinks, 1), |
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230 | FTPFS_OPT("disable_epsv", disable_epsv, 1), |
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231 | FTPFS_OPT("skip_pasv_ip", skip_pasv_ip, 1), |
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232 | FTPFS_OPT("ftp_port=%s", ftp_port, 0), |
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233 | FTPFS_OPT("disable_eprt", disable_eprt, 1), |
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234 | FTPFS_OPT("tcp_nodelay", tcp_nodelay, 1), |
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235 | FTPFS_OPT("connect_timeout=%u", connect_timeout, 0), |
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236 | FTPFS_OPT("ssl", use_ssl, CURLFTPSSL_ALL), |
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237 | FTPFS_OPT("ssl_control", use_ssl, CURLFTPSSL_CONTROL), |
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238 | FTPFS_OPT("ssl_try", use_ssl, CURLFTPSSL_TRY), |
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239 | FTPFS_OPT("no_verify_hostname", no_verify_hostname, 1), |
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240 | FTPFS_OPT("no_verify_peer", no_verify_peer, 1), |
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241 | FTPFS_OPT("cert=%s", cert, 0), |
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242 | FTPFS_OPT("cert_type=%s", cert_type, 0), |
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243 | FTPFS_OPT("key=%s", key, 0), |
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244 | FTPFS_OPT("key_type=%s", key_type, 0), |
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245 | FTPFS_OPT("pass=%s", key_password, 0), |
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246 | FTPFS_OPT("engine=%s", engine, 0), |
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247 | FTPFS_OPT("cacert=%s", cacert, 0), |
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248 | FTPFS_OPT("capath=%s", capath, 0), |
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249 | FTPFS_OPT("ciphers=%s", ciphers, 0), |
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250 | FTPFS_OPT("interface=%s", interface, 0), |
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251 | FTPFS_OPT("krb4=%s", krb4, 0), |
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252 | FTPFS_OPT("proxy=%s", proxy, 0), |
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253 | FTPFS_OPT("proxytunnel", proxytunnel, 1), |
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254 | FTPFS_OPT("proxy_anyauth", proxyanyauth, 1), |
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255 | FTPFS_OPT("proxy_basic", proxybasic, 1), |
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256 | FTPFS_OPT("proxy_digest", proxydigest, 1), |
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257 | FTPFS_OPT("proxy_ntlm", proxyntlm, 1), |
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258 | FTPFS_OPT("httpproxy", proxytype, CURLPROXY_HTTP), |
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259 | FTPFS_OPT("socks4", proxytype, CURLPROXY_SOCKS4), |
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260 | FTPFS_OPT("socks5", proxytype, CURLPROXY_SOCKS5), |
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261 | FTPFS_OPT("user=%s", user, 0), |
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262 | FTPFS_OPT("proxy_user=%s", proxy_user, 0), |
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263 | FTPFS_OPT("tlsv1", ssl_version, CURL_SSLVERSION_TLSv1), |
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264 | FTPFS_OPT("sslv3", ssl_version, CURL_SSLVERSION_SSLv3), |
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265 | FTPFS_OPT("ipv4", ip_version, CURL_IPRESOLVE_V4), |
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266 | FTPFS_OPT("ipv6", ip_version, CURL_IPRESOLVE_V6), |
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267 | FTPFS_OPT("utf8", tryutf8, 1), |
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268 | FTPFS_OPT("codepage=%s", codepage, 0), |
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269 | FTPFS_OPT("iocharset=%s", iocharset, 0), |
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270 | |
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271 | FUSE_OPT_KEY("-h", KEY_HELP), |
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272 | FUSE_OPT_KEY("--help", KEY_HELP), |
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273 | FUSE_OPT_KEY("-v", KEY_VERBOSE), |
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274 | FUSE_OPT_KEY("--verbose", KEY_VERBOSE), |
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275 | FUSE_OPT_KEY("-V", KEY_VERSION), |
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276 | FUSE_OPT_KEY("--version", KEY_VERSION), |
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277 | FUSE_OPT_END |
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278 | }; |
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279 | |
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280 | static size_t write_data(void *ptr, size_t size, size_t nmemb, void *data) { |
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281 | struct ftpfs_file* fh = (struct ftpfs_file*)data; |
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282 | if (fh == NULL) return 0; |
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283 | size_t to_copy = size * nmemb; |
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284 | if (to_copy > fh->buf.len - fh->copied) { |
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285 | to_copy = fh->buf.len - fh->copied; |
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286 | } |
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287 | DEBUG(2, "write_data: %zu\n", to_copy); |
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288 | DEBUG(3, "%*s\n", (int)to_copy, (char*)ptr); |
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289 | memcpy(ptr, fh->buf.p + fh->copied, to_copy); |
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290 | fh->copied += to_copy; |
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291 | return to_copy; |
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292 | } |
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293 | |
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294 | static size_t read_data(void *ptr, size_t size, size_t nmemb, void *data) { |
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295 | struct buffer* buf = (struct buffer*)data; |
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296 | if (buf == NULL) return size * nmemb; |
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297 | buf_add_mem(buf, ptr, size * nmemb); |
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298 | DEBUG(2, "read_data: %zu\n", size * nmemb); |
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299 | DEBUG(3, "%*s\n", (int)(size * nmemb), (char*)ptr); |
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300 | return size * nmemb; |
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301 | } |
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302 | |
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303 | #define curl_easy_setopt_or_die(handle, option, ...) \ |
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304 | do {\ |
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305 | CURLcode res = curl_easy_setopt(handle, option, __VA_ARGS__);\ |
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306 | if (res != CURLE_OK) {\ |
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307 | fprintf(stderr, "Error setting curl: %s\n", error_buf);\ |
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308 | exit(1);\ |
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309 | }\ |
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310 | }while(0); |
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311 | |
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312 | static int ftpfs_getdir(const char* path, fuse_cache_dirh_t h, |
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313 | fuse_cache_dirfil_t filler) { |
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314 | int err = 0; |
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315 | CURLcode curl_res; |
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316 | char* dir_path = get_fulldir_path(path); |
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317 | |
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318 | DEBUG(1, "ftpfs_getdir: %s\n", dir_path); |
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319 | struct buffer buf; |
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320 | buf_init(&buf, 0); |
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321 | |
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322 | pthread_mutex_lock(&ftpfs.lock); |
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323 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
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324 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, dir_path); |
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325 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
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326 | curl_res = curl_easy_perform(ftpfs.connection); |
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327 | pthread_mutex_unlock(&ftpfs.lock); |
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328 | |
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329 | if (curl_res != 0) { |
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330 | DEBUG(1, "%s\n", error_buf); |
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331 | err = -EIO; |
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332 | } else { |
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333 | buf_add_mem(&buf, "\0", 1); |
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334 | parse_dir((char*)buf.p, dir_path + strlen(ftpfs.host) - 1, |
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335 | NULL, NULL, NULL, 0, h, filler); |
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336 | } |
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337 | |
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338 | free(dir_path); |
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339 | buf_free(&buf); |
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340 | return err; |
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341 | } |
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342 | |
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343 | static int ftpfs_getattr(const char* path, struct stat* sbuf) { |
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344 | int err; |
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345 | CURLcode curl_res; |
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346 | char* dir_path = get_dir_path(path); |
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347 | |
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348 | DEBUG(2, "dir_path: %s %s\n", path, dir_path); |
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349 | struct buffer buf; |
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350 | buf_init(&buf, 0); |
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351 | |
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352 | pthread_mutex_lock(&ftpfs.lock); |
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353 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
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354 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, dir_path); |
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355 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
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356 | curl_res = curl_easy_perform(ftpfs.connection); |
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357 | pthread_mutex_unlock(&ftpfs.lock); |
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358 | |
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359 | if (curl_res != 0) { |
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360 | DEBUG(1, "%s\n", error_buf); |
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361 | } |
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362 | buf_add_mem(&buf, "\0", 1); |
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363 | |
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364 | char* name = strrchr(path, '/'); |
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365 | ++name; |
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366 | err = parse_dir((char*)buf.p, dir_path + strlen(ftpfs.host) - 1, |
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367 | name, sbuf, NULL, 0, NULL, NULL); |
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368 | |
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369 | free(dir_path); |
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370 | buf_free(&buf); |
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371 | if (err) return -ENOENT; |
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372 | return 0; |
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373 | } |
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374 | |
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375 | static int check_running() { |
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376 | int running_handles = 0; |
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377 | curl_multi_perform(ftpfs.multi, &running_handles); |
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378 | return running_handles; |
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379 | } |
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380 | |
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381 | static size_t ftpfs_read_chunk(const char* full_path, char* rbuf, |
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382 | size_t size, off_t offset, |
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383 | struct fuse_file_info* fi, |
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384 | int update_offset) { |
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385 | int running_handles = 0; |
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386 | int err = 0; |
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387 | struct ftpfs_file* fh = (struct ftpfs_file*) (uintptr_t) fi->fh; |
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388 | |
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389 | DEBUG(2, "ftpfs_read_chunk: %s %p %zu %lld %p %p\n", |
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390 | full_path, rbuf, size, offset, fi, fh); |
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391 | |
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392 | pthread_mutex_lock(&ftpfs.lock); |
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393 | |
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394 | DEBUG(2, "buffer size: %zu %lld\n", fh->buf.len, fh->buf.begin_offset); |
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395 | |
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396 | if ((fh->buf.len < size + offset - fh->buf.begin_offset) || |
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397 | offset < fh->buf.begin_offset || |
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398 | offset > fh->buf.begin_offset + fh->buf.len) { |
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399 | // We can't answer this from cache |
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400 | if (ftpfs.current_fh != fh || |
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401 | offset < fh->buf.begin_offset || |
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402 | offset > fh->buf.begin_offset + fh->buf.len || |
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403 | !check_running()) { |
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404 | DEBUG(1, "We need to restart the connection\n"); |
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405 | DEBUG(2, "%p %p\n", ftpfs.current_fh, fh); |
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406 | DEBUG(2, "%lld %lld\n", fh->buf.begin_offset, offset); |
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407 | |
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408 | buf_clear(&fh->buf); |
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409 | fh->buf.begin_offset = offset; |
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410 | ftpfs.current_fh = fh; |
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411 | |
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412 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
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413 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
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414 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &fh->buf); |
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415 | if (offset) { |
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416 | char range[15]; |
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417 | snprintf(range, 15, "%lld-", offset); |
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418 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_RANGE, range); |
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419 | } |
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420 | curl_multi_add_handle(ftpfs.multi, ftpfs.connection); |
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421 | } |
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422 | |
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423 | while(CURLM_CALL_MULTI_PERFORM == |
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424 | curl_multi_perform(ftpfs.multi, &running_handles)); |
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425 | |
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426 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_RANGE, NULL); |
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427 | |
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428 | while ((fh->buf.len < size + offset - fh->buf.begin_offset) && |
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429 | running_handles) { |
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430 | struct timeval timeout; |
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431 | int rc; /* select() return code */ |
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432 | |
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433 | fd_set fdread; |
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434 | fd_set fdwrite; |
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435 | fd_set fdexcep; |
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436 | int maxfd; |
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437 | |
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438 | FD_ZERO(&fdread); |
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439 | FD_ZERO(&fdwrite); |
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440 | FD_ZERO(&fdexcep); |
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441 | |
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442 | /* set a suitable timeout to play around with */ |
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443 | timeout.tv_sec = 1; |
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444 | timeout.tv_usec = 0; |
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445 | |
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446 | /* get file descriptors from the transfers */ |
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447 | curl_multi_fdset(ftpfs.multi, &fdread, &fdwrite, &fdexcep, &maxfd); |
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448 | |
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449 | rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout); |
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450 | |
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451 | switch(rc) { |
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452 | case -1: |
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453 | /* select error */ |
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454 | break; |
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455 | case 0: |
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456 | /* timeout, do something else */ |
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457 | break; |
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458 | default: |
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459 | /* one or more of curl's file descriptors say there's data to read |
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460 | or write */ |
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461 | while(CURLM_CALL_MULTI_PERFORM == |
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462 | curl_multi_perform(ftpfs.multi, &running_handles)); |
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463 | break; |
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464 | } |
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465 | } |
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466 | |
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467 | if (running_handles == 0) { |
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468 | int msgs_left = 1; |
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469 | while (msgs_left) { |
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470 | CURLMsg* msg = curl_multi_info_read(ftpfs.multi, &msgs_left); |
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471 | if (msg == NULL || |
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472 | msg->msg != CURLMSG_DONE || |
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473 | msg->data.result != CURLE_OK) { |
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474 | err = 1; |
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475 | } |
---|
476 | } |
---|
477 | } |
---|
478 | } |
---|
479 | |
---|
480 | size_t to_copy = fh->buf.len + fh->buf.begin_offset - offset; |
---|
481 | size = size > to_copy ? to_copy : size; |
---|
482 | if (rbuf) { |
---|
483 | memcpy(rbuf, fh->buf.p + offset - fh->buf.begin_offset, size); |
---|
484 | } |
---|
485 | |
---|
486 | if (update_offset) { |
---|
487 | fh->last_offset = offset + size; |
---|
488 | } |
---|
489 | |
---|
490 | // Check if the buffer is growing and we can delete a part of it |
---|
491 | if (fh->can_shrink && fh->buf.len > MAX_BUFFER_LEN) { |
---|
492 | DEBUG(2, "Shrinking buffer from %zu to %zu bytes\n", |
---|
493 | fh->buf.len, to_copy - size); |
---|
494 | memmove(fh->buf.p, |
---|
495 | fh->buf.p + offset - fh->buf.begin_offset + size, |
---|
496 | to_copy - size); |
---|
497 | fh->buf.len = to_copy - size; |
---|
498 | fh->buf.begin_offset = offset + size; |
---|
499 | } |
---|
500 | |
---|
501 | pthread_mutex_unlock(&ftpfs.lock); |
---|
502 | |
---|
503 | if (err) return CURLFTPFS_BAD_READ; |
---|
504 | return size; |
---|
505 | } |
---|
506 | |
---|
507 | static int ftpfs_open(const char* path, struct fuse_file_info* fi) { |
---|
508 | DEBUG(2, "%d\n", fi->flags & O_ACCMODE); |
---|
509 | int err = 0; |
---|
510 | char *full_path = get_full_path(path); |
---|
511 | |
---|
512 | struct ftpfs_file* fh = |
---|
513 | (struct ftpfs_file*) malloc(sizeof(struct ftpfs_file)); |
---|
514 | buf_init(&fh->buf, 0); |
---|
515 | fh->dirty = 0; |
---|
516 | fh->copied = 0; |
---|
517 | fh->last_offset = 0; |
---|
518 | fh->can_shrink = 0; |
---|
519 | fi->fh = (unsigned long) fh; |
---|
520 | |
---|
521 | if ((fi->flags & O_ACCMODE) == O_RDONLY) { |
---|
522 | // If it's read-only, we can load the file a bit at a time, as necessary. |
---|
523 | DEBUG(1, "opening %s O_RDONLY\n", path); |
---|
524 | fh->can_shrink = 1; |
---|
525 | size_t size = ftpfs_read_chunk(full_path, NULL, 1, 0, fi, 0); |
---|
526 | |
---|
527 | if (size == CURLFTPFS_BAD_READ) { |
---|
528 | err = -EACCES; |
---|
529 | buf_free(&fh->buf); |
---|
530 | free(fh); |
---|
531 | } |
---|
532 | } else if ((fi->flags & O_ACCMODE) == O_WRONLY || |
---|
533 | (fi->flags & O_ACCMODE) == O_RDWR) { |
---|
534 | // If we want to write to the file, we have to load it all at once, |
---|
535 | // modify it in memory and then upload it as a whole as most FTP servers |
---|
536 | // don't support resume for uploads. |
---|
537 | DEBUG(1, "opening %s O_WRONLY or O_RDWR\n", path); |
---|
538 | pthread_mutex_lock(&ftpfs.lock); |
---|
539 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
540 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
541 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &fh->buf); |
---|
542 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
543 | pthread_mutex_unlock(&ftpfs.lock); |
---|
544 | |
---|
545 | if (curl_res != 0) { |
---|
546 | err = -EACCES; |
---|
547 | buf_free(&fh->buf); |
---|
548 | free(fh); |
---|
549 | } |
---|
550 | } |
---|
551 | |
---|
552 | free(full_path); |
---|
553 | return err; |
---|
554 | } |
---|
555 | |
---|
556 | static int ftpfs_read(const char* path, char* rbuf, size_t size, off_t offset, |
---|
557 | struct fuse_file_info* fi) { |
---|
558 | int ret; |
---|
559 | char *full_path = get_full_path(path); |
---|
560 | size_t size_read = ftpfs_read_chunk(full_path, rbuf, size, offset, fi, 1); |
---|
561 | free(full_path); |
---|
562 | if (size_read == CURLFTPFS_BAD_READ) { |
---|
563 | ret = -EIO; |
---|
564 | } else { |
---|
565 | ret = size_read; |
---|
566 | } |
---|
567 | return ret; |
---|
568 | } |
---|
569 | |
---|
570 | static int ftpfs_mknod(const char* path, mode_t mode, dev_t rdev) { |
---|
571 | (void) rdev; |
---|
572 | |
---|
573 | int err = 0; |
---|
574 | |
---|
575 | if ((mode & S_IFMT) != S_IFREG) |
---|
576 | return -EPERM; |
---|
577 | |
---|
578 | char *full_path = get_full_path(path); |
---|
579 | |
---|
580 | pthread_mutex_lock(&ftpfs.lock); |
---|
581 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
582 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
583 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_INFILESIZE, 0); |
---|
584 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_UPLOAD, 1); |
---|
585 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_READDATA, NULL); |
---|
586 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
587 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_UPLOAD, 0); |
---|
588 | pthread_mutex_unlock(&ftpfs.lock); |
---|
589 | |
---|
590 | if (curl_res != 0) { |
---|
591 | err = -EPERM; |
---|
592 | } |
---|
593 | |
---|
594 | free(full_path); |
---|
595 | return err; |
---|
596 | } |
---|
597 | |
---|
598 | static int ftpfs_chmod(const char* path, mode_t mode) { |
---|
599 | int err = 0; |
---|
600 | |
---|
601 | // We can only process a subset of the mode - so strip |
---|
602 | // to supported subset |
---|
603 | int mode_c = mode - (mode / 0x1000 * 0x1000); |
---|
604 | |
---|
605 | struct curl_slist* header = NULL; |
---|
606 | char* full_path = get_dir_path(path); |
---|
607 | char* filename = get_file_name(path); |
---|
608 | char* cmd = g_strdup_printf("SITE CHMOD %.3o %s", mode_c, filename); |
---|
609 | struct buffer buf; |
---|
610 | buf_init(&buf, 0); |
---|
611 | |
---|
612 | header = curl_slist_append(header, cmd); |
---|
613 | |
---|
614 | pthread_mutex_lock(&ftpfs.lock); |
---|
615 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
616 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, header); |
---|
617 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
618 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
---|
619 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, ftpfs.safe_nobody); |
---|
620 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
621 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, NULL); |
---|
622 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, 0); |
---|
623 | pthread_mutex_unlock(&ftpfs.lock); |
---|
624 | |
---|
625 | if (curl_res != 0) { |
---|
626 | err = -EPERM; |
---|
627 | } |
---|
628 | |
---|
629 | buf_free(&buf); |
---|
630 | curl_slist_free_all(header); |
---|
631 | free(full_path); |
---|
632 | free(filename); |
---|
633 | free(cmd); |
---|
634 | return err; |
---|
635 | } |
---|
636 | |
---|
637 | static int ftpfs_chown(const char* path, uid_t uid, gid_t gid) { |
---|
638 | int err = 0; |
---|
639 | |
---|
640 | struct curl_slist* header = NULL; |
---|
641 | char* full_path = get_dir_path(path); |
---|
642 | char* filename = get_file_name(path); |
---|
643 | char* cmd = g_strdup_printf("SITE CHUID %i %s", uid, filename); |
---|
644 | char* cmd2 = g_strdup_printf("SITE CHGID %i %s", gid, filename); |
---|
645 | struct buffer buf; |
---|
646 | buf_init(&buf, 0); |
---|
647 | |
---|
648 | header = curl_slist_append(header, cmd); |
---|
649 | header = curl_slist_append(header, cmd2); |
---|
650 | |
---|
651 | pthread_mutex_lock(&ftpfs.lock); |
---|
652 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
653 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, header); |
---|
654 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
655 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
---|
656 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, ftpfs.safe_nobody); |
---|
657 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
658 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, NULL); |
---|
659 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, 0); |
---|
660 | pthread_mutex_unlock(&ftpfs.lock); |
---|
661 | |
---|
662 | if (curl_res != 0) { |
---|
663 | err = -EPERM; |
---|
664 | } |
---|
665 | |
---|
666 | buf_free(&buf); |
---|
667 | curl_slist_free_all(header); |
---|
668 | free(full_path); |
---|
669 | free(filename); |
---|
670 | free(cmd); |
---|
671 | free(cmd2); |
---|
672 | return err; |
---|
673 | } |
---|
674 | |
---|
675 | static int ftpfs_truncate(const char* path, off_t offset) { |
---|
676 | DEBUG(1, "ftpfs_truncate: %lld\n", offset); |
---|
677 | if (offset == 0) return ftpfs_mknod(path, S_IFREG, 0); |
---|
678 | return 0; |
---|
679 | } |
---|
680 | |
---|
681 | static int ftpfs_utime(const char* path, struct utimbuf* time) { |
---|
682 | (void) path; |
---|
683 | (void) time; |
---|
684 | return 0; |
---|
685 | } |
---|
686 | |
---|
687 | static int ftpfs_rmdir(const char* path) { |
---|
688 | int err = 0; |
---|
689 | struct curl_slist* header = NULL; |
---|
690 | char* full_path = get_dir_path(path); |
---|
691 | char* filename = get_file_name(path); |
---|
692 | char* cmd = g_strdup_printf("RMD %s", filename); |
---|
693 | struct buffer buf; |
---|
694 | buf_init(&buf, 0); |
---|
695 | |
---|
696 | DEBUG(2, "%s\n", full_path); |
---|
697 | DEBUG(2, "%s\n", cmd); |
---|
698 | |
---|
699 | header = curl_slist_append(header, cmd); |
---|
700 | |
---|
701 | pthread_mutex_lock(&ftpfs.lock); |
---|
702 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
703 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, header); |
---|
704 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
705 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
---|
706 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, ftpfs.safe_nobody); |
---|
707 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
708 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, NULL); |
---|
709 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, 0); |
---|
710 | pthread_mutex_unlock(&ftpfs.lock); |
---|
711 | |
---|
712 | if (curl_res != 0) { |
---|
713 | err = -EPERM; |
---|
714 | } |
---|
715 | |
---|
716 | buf_free(&buf); |
---|
717 | curl_slist_free_all(header); |
---|
718 | free(full_path); |
---|
719 | free(filename); |
---|
720 | free(cmd); |
---|
721 | return err; |
---|
722 | } |
---|
723 | |
---|
724 | static int ftpfs_mkdir(const char* path, mode_t mode) { |
---|
725 | (void) mode; |
---|
726 | int err = 0; |
---|
727 | struct curl_slist* header = NULL; |
---|
728 | char* full_path = get_dir_path(path); |
---|
729 | char* filename = get_file_name(path); |
---|
730 | char* cmd = g_strdup_printf("MKD %s", filename); |
---|
731 | struct buffer buf; |
---|
732 | buf_init(&buf, 0); |
---|
733 | |
---|
734 | header = curl_slist_append(header, cmd); |
---|
735 | |
---|
736 | pthread_mutex_lock(&ftpfs.lock); |
---|
737 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
738 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, header); |
---|
739 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
740 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
---|
741 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, ftpfs.safe_nobody); |
---|
742 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
743 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, NULL); |
---|
744 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, 0); |
---|
745 | pthread_mutex_unlock(&ftpfs.lock); |
---|
746 | |
---|
747 | if (curl_res != 0) { |
---|
748 | err = -EPERM; |
---|
749 | } |
---|
750 | |
---|
751 | buf_free(&buf); |
---|
752 | curl_slist_free_all(header); |
---|
753 | free(full_path); |
---|
754 | free(filename); |
---|
755 | free(cmd); |
---|
756 | return err; |
---|
757 | } |
---|
758 | |
---|
759 | static int ftpfs_unlink(const char* path) { |
---|
760 | int err = 0; |
---|
761 | struct curl_slist* header = NULL; |
---|
762 | char* full_path = get_dir_path(path); |
---|
763 | char* filename = get_file_name(path); |
---|
764 | char* cmd = g_strdup_printf("DELE %s", filename); |
---|
765 | struct buffer buf; |
---|
766 | buf_init(&buf, 0); |
---|
767 | |
---|
768 | header = curl_slist_append(header, cmd); |
---|
769 | |
---|
770 | pthread_mutex_lock(&ftpfs.lock); |
---|
771 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
772 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, header); |
---|
773 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
774 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
---|
775 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, ftpfs.safe_nobody); |
---|
776 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
777 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, NULL); |
---|
778 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, 0); |
---|
779 | pthread_mutex_unlock(&ftpfs.lock); |
---|
780 | |
---|
781 | if (curl_res != 0) { |
---|
782 | err = -EPERM; |
---|
783 | } |
---|
784 | |
---|
785 | buf_free(&buf); |
---|
786 | curl_slist_free_all(header); |
---|
787 | free(full_path); |
---|
788 | free(filename); |
---|
789 | free(cmd); |
---|
790 | return err; |
---|
791 | } |
---|
792 | |
---|
793 | static int ftpfs_write(const char *path, const char *wbuf, size_t size, |
---|
794 | off_t offset, struct fuse_file_info *fi) { |
---|
795 | (void) path; |
---|
796 | struct ftpfs_file* fh = (struct ftpfs_file*) (uintptr_t) fi->fh; |
---|
797 | DEBUG(1, "ftpfs_write: %zu %lld\n", size, offset); |
---|
798 | if (offset + size > fh->buf.size) { |
---|
799 | buf_resize(&fh->buf, offset + size); |
---|
800 | } |
---|
801 | while (fh->buf.len < offset + size) { |
---|
802 | buf_add_mem(&fh->buf, "\0", 1); |
---|
803 | } |
---|
804 | memcpy(fh->buf.p + offset, wbuf, size); |
---|
805 | fh->dirty = 1; |
---|
806 | |
---|
807 | return size; |
---|
808 | } |
---|
809 | |
---|
810 | static int ftpfs_flush(const char *path, struct fuse_file_info *fi) { |
---|
811 | struct ftpfs_file* fh = (struct ftpfs_file*) (uintptr_t) fi->fh; |
---|
812 | if (!fh->dirty) return 0; |
---|
813 | |
---|
814 | int err = 0; |
---|
815 | DEBUG(1, "ftpfs_flush: %zu\n", fh->buf.len); |
---|
816 | char* full_path = get_full_path(path); |
---|
817 | |
---|
818 | pthread_mutex_lock(&ftpfs.lock); |
---|
819 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
820 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, full_path); |
---|
821 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_INFILESIZE, fh->buf.len); |
---|
822 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_UPLOAD, 1); |
---|
823 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_READDATA, fh); |
---|
824 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
825 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_UPLOAD, 0); |
---|
826 | |
---|
827 | fh->dirty = 0; |
---|
828 | pthread_mutex_unlock(&ftpfs.lock); |
---|
829 | |
---|
830 | if (curl_res != 0) { |
---|
831 | err = -EPERM; |
---|
832 | } |
---|
833 | |
---|
834 | free(full_path); |
---|
835 | return err; |
---|
836 | } |
---|
837 | |
---|
838 | static int ftpfs_fsync(const char *path, int isdatasync, |
---|
839 | struct fuse_file_info *fi) { |
---|
840 | (void) isdatasync; |
---|
841 | return ftpfs_flush(path, fi); |
---|
842 | } |
---|
843 | |
---|
844 | static int ftpfs_release(const char* path, struct fuse_file_info* fi) { |
---|
845 | struct ftpfs_file* fh = (struct ftpfs_file*) (uintptr_t) fi->fh; |
---|
846 | ftpfs_flush(path, fi); |
---|
847 | pthread_mutex_lock(&ftpfs.lock); |
---|
848 | if (ftpfs.current_fh == fh) { |
---|
849 | ftpfs.current_fh = NULL; |
---|
850 | } |
---|
851 | buf_free(&fh->buf); |
---|
852 | free(fh); |
---|
853 | pthread_mutex_unlock(&ftpfs.lock); |
---|
854 | return 0; |
---|
855 | } |
---|
856 | |
---|
857 | |
---|
858 | static int ftpfs_rename(const char* from, const char* to) { |
---|
859 | DEBUG(1, "ftpfs_rename from %s to %s\n", from, to); |
---|
860 | int err = 0; |
---|
861 | char* rnfr = g_strdup_printf("RNFR %s", from + 1); |
---|
862 | char* rnto = g_strdup_printf("RNTO %s", to + 1); |
---|
863 | struct buffer buf; |
---|
864 | buf_init(&buf, 0); |
---|
865 | struct curl_slist* header = NULL; |
---|
866 | |
---|
867 | if (ftpfs.codepage) { |
---|
868 | convert_charsets(ftpfs.iocharset, ftpfs.codepage, &rnfr); |
---|
869 | convert_charsets(ftpfs.iocharset, ftpfs.codepage, &rnto); |
---|
870 | } |
---|
871 | |
---|
872 | header = curl_slist_append(header, rnfr); |
---|
873 | header = curl_slist_append(header, rnto); |
---|
874 | |
---|
875 | pthread_mutex_lock(&ftpfs.lock); |
---|
876 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
877 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, header); |
---|
878 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, ftpfs.host); |
---|
879 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
---|
880 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, ftpfs.safe_nobody); |
---|
881 | CURLcode curl_res = curl_easy_perform(ftpfs.connection); |
---|
882 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_POSTQUOTE, NULL); |
---|
883 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_NOBODY, 0); |
---|
884 | pthread_mutex_unlock(&ftpfs.lock); |
---|
885 | |
---|
886 | if (curl_res != 0) { |
---|
887 | err = -EPERM; |
---|
888 | } |
---|
889 | |
---|
890 | buf_free(&buf); |
---|
891 | curl_slist_free_all(header); |
---|
892 | free(rnfr); |
---|
893 | free(rnto); |
---|
894 | |
---|
895 | return err; |
---|
896 | } |
---|
897 | |
---|
898 | static int ftpfs_readlink(const char *path, char *linkbuf, size_t size) { |
---|
899 | int err; |
---|
900 | CURLcode curl_res; |
---|
901 | char* dir_path = get_dir_path(path); |
---|
902 | |
---|
903 | DEBUG(2, "dir_path: %s %s\n", path, dir_path); |
---|
904 | struct buffer buf; |
---|
905 | buf_init(&buf, 0); |
---|
906 | |
---|
907 | pthread_mutex_lock(&ftpfs.lock); |
---|
908 | curl_multi_remove_handle(ftpfs.multi, ftpfs.connection); |
---|
909 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_URL, dir_path); |
---|
910 | curl_easy_setopt_or_die(ftpfs.connection, CURLOPT_WRITEDATA, &buf); |
---|
911 | curl_res = curl_easy_perform(ftpfs.connection); |
---|
912 | pthread_mutex_unlock(&ftpfs.lock); |
---|
913 | |
---|
914 | if (curl_res != 0) { |
---|
915 | DEBUG(1, "%s\n", error_buf); |
---|
916 | } |
---|
917 | buf_add_mem(&buf, "\0", 1); |
---|
918 | |
---|
919 | char* name = strrchr(path, '/'); |
---|
920 | ++name; |
---|
921 | err = parse_dir((char*)buf.p, dir_path + strlen(ftpfs.host) - 1, |
---|
922 | name, NULL, linkbuf, size, NULL, NULL); |
---|
923 | |
---|
924 | free(dir_path); |
---|
925 | buf_free(&buf); |
---|
926 | if (err) return -ENOENT; |
---|
927 | return 0; |
---|
928 | } |
---|
929 | |
---|
930 | #if FUSE_VERSION >= 25 |
---|
931 | static int ftpfs_statfs(const char *path, struct statvfs *buf) |
---|
932 | { |
---|
933 | (void) path; |
---|
934 | |
---|
935 | buf->f_namemax = 255; |
---|
936 | buf->f_bsize = ftpfs.blksize; |
---|
937 | buf->f_frsize = 512; |
---|
938 | buf->f_blocks = 999999999 * 2; |
---|
939 | buf->f_bfree = 999999999 * 2; |
---|
940 | buf->f_bavail = 999999999 * 2; |
---|
941 | buf->f_files = 999999999; |
---|
942 | buf->f_ffree = 999999999; |
---|
943 | return 0; |
---|
944 | } |
---|
945 | #else |
---|
946 | static int ftpfs_statfs(const char *path, struct statfs *buf) |
---|
947 | { |
---|
948 | (void) path; |
---|
949 | |
---|
950 | buf->f_namelen = 255; |
---|
951 | buf->f_bsize = ftpfs.blksize; |
---|
952 | buf->f_blocks = 999999999 * 2; |
---|
953 | buf->f_bfree = 999999999 * 2; |
---|
954 | buf->f_bavail = 999999999 * 2; |
---|
955 | buf->f_files = 999999999; |
---|
956 | buf->f_ffree = 999999999; |
---|
957 | return 0; |
---|
958 | } |
---|
959 | #endif |
---|
960 | |
---|
961 | static struct fuse_cache_operations ftpfs_oper = { |
---|
962 | .oper = { |
---|
963 | // .init = ftpfs_init, |
---|
964 | .getattr = ftpfs_getattr, |
---|
965 | .readlink = ftpfs_readlink, |
---|
966 | .mknod = ftpfs_mknod, |
---|
967 | .mkdir = ftpfs_mkdir, |
---|
968 | // .symlink = ftpfs_symlink, |
---|
969 | .unlink = ftpfs_unlink, |
---|
970 | .rmdir = ftpfs_rmdir, |
---|
971 | .rename = ftpfs_rename, |
---|
972 | .chmod = ftpfs_chmod, |
---|
973 | .chown = ftpfs_chown, |
---|
974 | .truncate = ftpfs_truncate, |
---|
975 | .utime = ftpfs_utime, |
---|
976 | .open = ftpfs_open, |
---|
977 | .flush = ftpfs_flush, |
---|
978 | .fsync = ftpfs_fsync, |
---|
979 | .release = ftpfs_release, |
---|
980 | .read = ftpfs_read, |
---|
981 | .write = ftpfs_write, |
---|
982 | .statfs = ftpfs_statfs, |
---|
983 | #if FUSE_VERSION >= 25 |
---|
984 | // .create = ftpfs_create, |
---|
985 | // .ftruncate = ftpfs_ftruncate, |
---|
986 | // .fgetattr = ftpfs_fgetattr, |
---|
987 | #endif |
---|
988 | }, |
---|
989 | .cache_getdir = ftpfs_getdir, |
---|
990 | }; |
---|
991 | |
---|
992 | static int ftpfs_opt_proc(void* data, const char* arg, int key, |
---|
993 | struct fuse_args* outargs) { |
---|
994 | (void) data; |
---|
995 | (void) outargs; |
---|
996 | |
---|
997 | switch (key) { |
---|
998 | case FUSE_OPT_KEY_OPT: |
---|
999 | return 1; |
---|
1000 | case FUSE_OPT_KEY_NONOPT: |
---|
1001 | if (!ftpfs.host) { |
---|
1002 | const char* prefix = ""; |
---|
1003 | if (strncmp(arg, "ftp://", 6) && strncmp(arg, "ftps://", 7)) { |
---|
1004 | prefix = "ftp://"; |
---|
1005 | } |
---|
1006 | ftpfs.host = g_strdup_printf("%s%s%s", prefix, arg, |
---|
1007 | arg[strlen(arg)-1] == '/' ? "" : "/"); |
---|
1008 | return 0; |
---|
1009 | } else if (!ftpfs.mountpoint) |
---|
1010 | ftpfs.mountpoint = strdup(arg); |
---|
1011 | return 1; |
---|
1012 | case KEY_HELP: |
---|
1013 | usage(outargs->argv[0]); |
---|
1014 | fuse_opt_add_arg(outargs, "-ho"); |
---|
1015 | fuse_main(outargs->argc, outargs->argv, &ftpfs_oper.oper); |
---|
1016 | exit(1); |
---|
1017 | case KEY_VERBOSE: |
---|
1018 | ftpfs.verbose = 1; |
---|
1019 | return 0; |
---|
1020 | case KEY_VERSION: |
---|
1021 | fprintf(stderr, "curlftpfs %s libcurl/%s fuse/%u.%u\n", |
---|
1022 | VERSION, |
---|
1023 | ftpfs.curl_version->version, |
---|
1024 | FUSE_MAJOR_VERSION, |
---|
1025 | FUSE_MINOR_VERSION); |
---|
1026 | exit(1); |
---|
1027 | default: |
---|
1028 | exit(1); |
---|
1029 | } |
---|
1030 | } |
---|
1031 | |
---|
1032 | static void usage(const char* progname) { |
---|
1033 | fprintf(stderr, |
---|
1034 | "usage: %s <ftphost> <mountpoint>\n" |
---|
1035 | "\n" |
---|
1036 | "CurlFtpFS options:\n" |
---|
1037 | " -o opt,[opt...] ftp options\n" |
---|
1038 | " -v --verbose make libcurl print verbose debug\n" |
---|
1039 | " -h --help print help\n" |
---|
1040 | " -V --version print version\n" |
---|
1041 | "\n" |
---|
1042 | "FTP options:\n" |
---|
1043 | " ftpfs_debug print some debugging information\n" |
---|
1044 | " transform_symlinks prepend mountpoint to absolute symlink targets\n" |
---|
1045 | " disable_epsv use PASV, without trying EPSV first\n" |
---|
1046 | " skip_pasv_ip skip the IP address for PASV\n" |
---|
1047 | " ftp_port=STR use PORT with address instead of PASV\n" |
---|
1048 | " disable_eprt use PORT, without trying EPRT first\n" |
---|
1049 | " tcp_nodelay use the TCP_NODELAY option\n" |
---|
1050 | " connect_timeout=N maximum time allowed for connection in seconds\n" |
---|
1051 | " ssl enable SSL/TLS for both control and data connections\n" |
---|
1052 | " ssl_control enable SSL/TLS only for control connection\n" |
---|
1053 | " ssl_try try SSL/TLS first but connect anyway\n" |
---|
1054 | " no_verify_hostname does not verify the hostname (SSL)\n" |
---|
1055 | " no_verify_peer does not verify the peer (SSL)\n" |
---|
1056 | " cert=STR client certificate file (SSL)\n" |
---|
1057 | " cert_type=STR certificate file type (DER/PEM/ENG) (SSL)\n" |
---|
1058 | " key=STR private key file name (SSL)\n" |
---|
1059 | " key_type=STR private key file type (DER/PEM/ENG) (SSL)\n" |
---|
1060 | " pass=STR pass phrase for the private key (SSL)\n" |
---|
1061 | " engine=STR crypto engine to use (SSL)\n" |
---|
1062 | " cacert=STR file with CA certificates to verify the peer (SSL)\n" |
---|
1063 | " capath=STR CA directory to verify peer against (SSL)\n" |
---|
1064 | " ciphers=STR SSL ciphers to use (SSL)\n" |
---|
1065 | " interface=STR specify network interface/address to use\n" |
---|
1066 | " krb4=STR enable krb4 with specified security level\n" |
---|
1067 | " proxy=STR use host:port HTTP proxy\n" |
---|
1068 | " proxytunnel operate through a HTTP proxy tunnel (using CONNECT)\n" |
---|
1069 | " proxy_anyauth pick \"any\" proxy authentication method\n" |
---|
1070 | " proxy_basic use Basic authentication on the proxy\n" |
---|
1071 | " proxy_digest use Digest authentication on the proxy\n" |
---|
1072 | " proxy_ntlm use NTLM authentication on the proxy\n" |
---|
1073 | " httpproxy use a HTTP proxy (default)\n" |
---|
1074 | " socks4 use a SOCKS4 proxy\n" |
---|
1075 | " socks5 use a SOCKS5 proxy\n" |
---|
1076 | " user=STR set server user and password\n" |
---|
1077 | " proxy_user=STR set proxy user and password\n" |
---|
1078 | " tlsv1 use TLSv1 (SSL)\n" |
---|
1079 | " sslv3 use SSLv3 (SSL)\n" |
---|
1080 | " ipv4 resolve name to IPv4 address\n" |
---|
1081 | " ipv6 resolve name to IPv6 address\n" |
---|
1082 | " utf8 try to transfer file list with utf-8 encoding\n" |
---|
1083 | " codepage=STR set the codepage the server uses\n" |
---|
1084 | " iocharset=STR set the charset used by the client\n" |
---|
1085 | "\n", progname); |
---|
1086 | } |
---|
1087 | |
---|
1088 | static void set_common_curl_stuff(CURL* easy) { |
---|
1089 | curl_easy_setopt_or_die(easy, CURLOPT_WRITEFUNCTION, read_data); |
---|
1090 | curl_easy_setopt_or_die(easy, CURLOPT_READFUNCTION, write_data); |
---|
1091 | curl_easy_setopt_or_die(easy, CURLOPT_ERRORBUFFER, error_buf); |
---|
1092 | curl_easy_setopt_or_die(easy, CURLOPT_URL, ftpfs.host); |
---|
1093 | curl_easy_setopt_or_die(easy, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); |
---|
1094 | curl_easy_setopt_or_die(easy, CURLOPT_NOSIGNAL, 1); |
---|
1095 | curl_easy_setopt_or_die(easy, CURLOPT_CUSTOMREQUEST, "LIST -a"); |
---|
1096 | |
---|
1097 | if (ftpfs.tryutf8) { |
---|
1098 | // We'll let the slist leak, as it will still be accessible within |
---|
1099 | // libcurl. If we ever want to add more commands to CURLOPT_QUOTE, we'll |
---|
1100 | // have to think of a better strategy. |
---|
1101 | struct curl_slist *slist = NULL; |
---|
1102 | |
---|
1103 | // Adding the QUOTE here will make this command be sent with every request. |
---|
1104 | // This is necessary to ensure that the server is still in UTF8 mode after |
---|
1105 | // we get disconnected and automatically reconnect. |
---|
1106 | slist = curl_slist_append(slist, "OPTS UTF8 ON"); |
---|
1107 | curl_easy_setopt_or_die(easy, CURLOPT_QUOTE, slist); |
---|
1108 | } |
---|
1109 | |
---|
1110 | if (ftpfs.verbose) { |
---|
1111 | curl_easy_setopt_or_die(easy, CURLOPT_VERBOSE, TRUE); |
---|
1112 | } |
---|
1113 | |
---|
1114 | if (ftpfs.disable_epsv) { |
---|
1115 | curl_easy_setopt_or_die(easy, CURLOPT_FTP_USE_EPSV, FALSE); |
---|
1116 | } |
---|
1117 | |
---|
1118 | if (ftpfs.skip_pasv_ip) { |
---|
1119 | #ifdef CURLOPT_FTP_SKIP_PASV_IP |
---|
1120 | curl_easy_setopt_or_die(easy, CURLOPT_FTP_SKIP_PASV_IP, TRUE); |
---|
1121 | #endif |
---|
1122 | } |
---|
1123 | |
---|
1124 | if (ftpfs.ftp_port) { |
---|
1125 | curl_easy_setopt_or_die(easy, CURLOPT_FTPPORT, ftpfs.ftp_port); |
---|
1126 | } |
---|
1127 | |
---|
1128 | if (ftpfs.disable_eprt) { |
---|
1129 | curl_easy_setopt_or_die(easy, CURLOPT_FTP_USE_EPRT, FALSE); |
---|
1130 | } |
---|
1131 | |
---|
1132 | if (ftpfs.tcp_nodelay) { |
---|
1133 | #ifdef CURLOPT_TCP_NODELAY |
---|
1134 | /* CURLOPT_TCP_NODELAY is not defined in older versions */ |
---|
1135 | curl_easy_setopt_or_die(easy, CURLOPT_TCP_NODELAY, 1); |
---|
1136 | #endif |
---|
1137 | } |
---|
1138 | |
---|
1139 | curl_easy_setopt_or_die(easy, CURLOPT_CONNECTTIMEOUT, ftpfs.connect_timeout); |
---|
1140 | |
---|
1141 | /* CURLFTPSSL_CONTROL and CURLFTPSSL_ALL should make the connection fail if |
---|
1142 | * the server doesn't support SSL but libcurl only honors this beginning |
---|
1143 | * with version 7.15.4 */ |
---|
1144 | if (ftpfs.use_ssl > CURLFTPSSL_TRY && |
---|
1145 | ftpfs.curl_version->version_num <= CURLFTPFS_BAD_SSL) { |
---|
1146 | fprintf(stderr, |
---|
1147 | "WARNING: you are using libcurl %s.\n" |
---|
1148 | "This version of libcurl does not respect the mandatory SSL flag.\n" |
---|
1149 | "It will try to send the user and password even if the server doesn't support\n" |
---|
1150 | "SSL. Please upgrade to libcurl version 7.15.4 or higher.\n" |
---|
1151 | "You can abort the connection now by pressing ctrl+c.\n", |
---|
1152 | ftpfs.curl_version->version); |
---|
1153 | int i; |
---|
1154 | const int time_to_wait = 10; |
---|
1155 | for (i = 0; i < time_to_wait; i++) { |
---|
1156 | fprintf(stderr, "%d.. ", time_to_wait - i); |
---|
1157 | sleep(1); |
---|
1158 | } |
---|
1159 | fprintf(stderr, "\n"); |
---|
1160 | } |
---|
1161 | curl_easy_setopt_or_die(easy, CURLOPT_FTP_SSL, ftpfs.use_ssl); |
---|
1162 | |
---|
1163 | curl_easy_setopt_or_die(easy, CURLOPT_SSLCERT, ftpfs.cert); |
---|
1164 | curl_easy_setopt_or_die(easy, CURLOPT_SSLCERTTYPE, ftpfs.cert_type); |
---|
1165 | curl_easy_setopt_or_die(easy, CURLOPT_SSLKEY, ftpfs.key); |
---|
1166 | curl_easy_setopt_or_die(easy, CURLOPT_SSLKEYTYPE, ftpfs.key_type); |
---|
1167 | curl_easy_setopt_or_die(easy, CURLOPT_SSLKEYPASSWD, ftpfs.key_password); |
---|
1168 | |
---|
1169 | if (ftpfs.engine) { |
---|
1170 | curl_easy_setopt_or_die(easy, CURLOPT_SSLENGINE, ftpfs.engine); |
---|
1171 | curl_easy_setopt_or_die(easy, CURLOPT_SSLENGINE_DEFAULT, 1); |
---|
1172 | } |
---|
1173 | |
---|
1174 | curl_easy_setopt_or_die(easy, CURLOPT_SSL_VERIFYPEER, TRUE); |
---|
1175 | if (ftpfs.no_verify_peer) { |
---|
1176 | curl_easy_setopt_or_die(easy, CURLOPT_SSL_VERIFYPEER, FALSE); |
---|
1177 | } |
---|
1178 | |
---|
1179 | if (ftpfs.cacert || ftpfs.capath) { |
---|
1180 | if (ftpfs.cacert) { |
---|
1181 | curl_easy_setopt_or_die(easy, CURLOPT_CAINFO, ftpfs.cacert); |
---|
1182 | } |
---|
1183 | if (ftpfs.capath) { |
---|
1184 | curl_easy_setopt_or_die(easy, CURLOPT_CAPATH, ftpfs.capath); |
---|
1185 | } |
---|
1186 | } |
---|
1187 | |
---|
1188 | if (ftpfs.ciphers) { |
---|
1189 | curl_easy_setopt_or_die(easy, CURLOPT_SSL_CIPHER_LIST, ftpfs.ciphers); |
---|
1190 | } |
---|
1191 | |
---|
1192 | if (ftpfs.no_verify_hostname) { |
---|
1193 | /* The default is 2 which verifies even the host string. This sets to 1 |
---|
1194 | * which means verify the host but not the string. */ |
---|
1195 | curl_easy_setopt_or_die(easy, CURLOPT_SSL_VERIFYHOST, 1); |
---|
1196 | } |
---|
1197 | |
---|
1198 | curl_easy_setopt_or_die(easy, CURLOPT_INTERFACE, ftpfs.interface); |
---|
1199 | curl_easy_setopt_or_die(easy, CURLOPT_KRB4LEVEL, ftpfs.krb4); |
---|
1200 | |
---|
1201 | if (ftpfs.proxy) { |
---|
1202 | curl_easy_setopt_or_die(easy, CURLOPT_PROXY, ftpfs.proxy); |
---|
1203 | } |
---|
1204 | |
---|
1205 | /* The default proxy type is HTTP */ |
---|
1206 | if (!ftpfs.proxytype) { |
---|
1207 | ftpfs.proxytype = CURLPROXY_HTTP; |
---|
1208 | } |
---|
1209 | curl_easy_setopt_or_die(easy, CURLOPT_PROXYTYPE, ftpfs.proxytype); |
---|
1210 | |
---|
1211 | /* Connection to FTP servers only make sense with a HTTP tunnel proxy */ |
---|
1212 | if (ftpfs.proxytype == CURLPROXY_HTTP || ftpfs.proxytunnel) { |
---|
1213 | curl_easy_setopt_or_die(easy, CURLOPT_HTTPPROXYTUNNEL, TRUE); |
---|
1214 | } |
---|
1215 | |
---|
1216 | if (ftpfs.proxyanyauth) { |
---|
1217 | curl_easy_setopt_or_die(easy, CURLOPT_PROXYAUTH, CURLAUTH_ANY); |
---|
1218 | } else if (ftpfs.proxyntlm) { |
---|
1219 | curl_easy_setopt_or_die(easy, CURLOPT_PROXYAUTH, CURLAUTH_NTLM); |
---|
1220 | } else if (ftpfs.proxydigest) { |
---|
1221 | curl_easy_setopt_or_die(easy, CURLOPT_PROXYAUTH, CURLAUTH_DIGEST); |
---|
1222 | } else if (ftpfs.proxybasic) { |
---|
1223 | curl_easy_setopt_or_die(easy, CURLOPT_PROXYAUTH, CURLAUTH_BASIC); |
---|
1224 | } |
---|
1225 | |
---|
1226 | curl_easy_setopt_or_die(easy, CURLOPT_USERPWD, ftpfs.user); |
---|
1227 | curl_easy_setopt_or_die(easy, CURLOPT_PROXYUSERPWD, ftpfs.proxy_user); |
---|
1228 | curl_easy_setopt_or_die(easy, CURLOPT_SSLVERSION, ftpfs.ssl_version); |
---|
1229 | curl_easy_setopt_or_die(easy, CURLOPT_IPRESOLVE, ftpfs.ip_version); |
---|
1230 | } |
---|
1231 | |
---|
1232 | static void checkpasswd(const char *kind, /* for what purpose */ |
---|
1233 | char **userpwd) /* pointer to allocated string */ |
---|
1234 | { |
---|
1235 | char *ptr; |
---|
1236 | if(!*userpwd) |
---|
1237 | return; |
---|
1238 | |
---|
1239 | ptr = strchr(*userpwd, ':'); |
---|
1240 | if(!ptr) { |
---|
1241 | /* no password present, prompt for one */ |
---|
1242 | char *passwd; |
---|
1243 | char prompt[256]; |
---|
1244 | size_t passwdlen; |
---|
1245 | size_t userlen = strlen(*userpwd); |
---|
1246 | char *passptr; |
---|
1247 | |
---|
1248 | /* build a nice-looking prompt */ |
---|
1249 | snprintf(prompt, sizeof(prompt), |
---|
1250 | "Enter %s password for user '%s':", |
---|
1251 | kind, *userpwd); |
---|
1252 | |
---|
1253 | /* get password */ |
---|
1254 | passwd = getpass(prompt); |
---|
1255 | passwdlen = strlen(passwd); |
---|
1256 | |
---|
1257 | /* extend the allocated memory area to fit the password too */ |
---|
1258 | passptr = realloc(*userpwd, |
---|
1259 | passwdlen + 1 + /* an extra for the colon */ |
---|
1260 | userlen + 1); /* an extra for the zero */ |
---|
1261 | |
---|
1262 | if(passptr) { |
---|
1263 | /* append the password separated with a colon */ |
---|
1264 | passptr[userlen]=':'; |
---|
1265 | memcpy(&passptr[userlen+1], passwd, passwdlen+1); |
---|
1266 | *userpwd = passptr; |
---|
1267 | } |
---|
1268 | } |
---|
1269 | } |
---|
1270 | |
---|
1271 | int main(int argc, char** argv) { |
---|
1272 | int res; |
---|
1273 | struct fuse_args args = FUSE_ARGS_INIT(argc, argv); |
---|
1274 | CURLcode curl_res; |
---|
1275 | CURL* easy; |
---|
1276 | |
---|
1277 | // Initialize curl library before we are a multithreaded program |
---|
1278 | curl_global_init(CURL_GLOBAL_ALL); |
---|
1279 | |
---|
1280 | memset(&ftpfs, 0, sizeof(ftpfs)); |
---|
1281 | |
---|
1282 | ftpfs.curl_version = curl_version_info(CURLVERSION_NOW); |
---|
1283 | ftpfs.safe_nobody = ftpfs.curl_version->version_num > CURLFTPFS_BAD_NOBODY; |
---|
1284 | |
---|
1285 | ftpfs.blksize = 4096; |
---|
1286 | |
---|
1287 | if (fuse_opt_parse(&args, &ftpfs, ftpfs_opts, ftpfs_opt_proc) == -1) |
---|
1288 | exit(1); |
---|
1289 | |
---|
1290 | if (!ftpfs.host) { |
---|
1291 | fprintf(stderr, "missing host\n"); |
---|
1292 | fprintf(stderr, "see `%s -h' for usage\n", argv[0]); |
---|
1293 | exit(1); |
---|
1294 | } |
---|
1295 | |
---|
1296 | if (!ftpfs.iocharset) { |
---|
1297 | ftpfs.iocharset = "UTF8"; |
---|
1298 | } |
---|
1299 | |
---|
1300 | if (ftpfs.codepage) { |
---|
1301 | convert_charsets(ftpfs.iocharset, ftpfs.codepage, &ftpfs.host); |
---|
1302 | } |
---|
1303 | |
---|
1304 | easy = curl_easy_init(); |
---|
1305 | if (easy == NULL) { |
---|
1306 | fprintf(stderr, "Error initializing libcurl\n"); |
---|
1307 | exit(1); |
---|
1308 | } |
---|
1309 | |
---|
1310 | res = cache_parse_options(&args); |
---|
1311 | if (res == -1) |
---|
1312 | exit(1); |
---|
1313 | |
---|
1314 | checkpasswd("host", &ftpfs.user); |
---|
1315 | checkpasswd("proxy", &ftpfs.proxy_user); |
---|
1316 | |
---|
1317 | if (ftpfs.transform_symlinks && !ftpfs.mountpoint) { |
---|
1318 | fprintf(stderr, "cannot transform symlinks: no mountpoint given\n"); |
---|
1319 | exit(1); |
---|
1320 | } |
---|
1321 | if (!ftpfs.transform_symlinks) |
---|
1322 | ftpfs.symlink_prefix_len = 0; |
---|
1323 | else if (realpath(ftpfs.mountpoint, ftpfs.symlink_prefix) != NULL) |
---|
1324 | ftpfs.symlink_prefix_len = strlen(ftpfs.symlink_prefix); |
---|
1325 | else { |
---|
1326 | perror("unable to normalize mount path"); |
---|
1327 | exit(1); |
---|
1328 | } |
---|
1329 | |
---|
1330 | set_common_curl_stuff(easy); |
---|
1331 | curl_easy_setopt_or_die(easy, CURLOPT_WRITEDATA, NULL); |
---|
1332 | curl_easy_setopt_or_die(easy, CURLOPT_NOBODY, ftpfs.safe_nobody); |
---|
1333 | curl_res = curl_easy_perform(easy); |
---|
1334 | if (curl_res != 0) { |
---|
1335 | fprintf(stderr, "Error connecting to ftp: %s\n", error_buf); |
---|
1336 | exit(1); |
---|
1337 | } |
---|
1338 | curl_easy_setopt_or_die(easy, CURLOPT_NOBODY, 0); |
---|
1339 | |
---|
1340 | ftpfs.multi = curl_multi_init(); |
---|
1341 | if (ftpfs.multi == NULL) { |
---|
1342 | fprintf(stderr, "Error initializing libcurl multi\n"); |
---|
1343 | exit(1); |
---|
1344 | } |
---|
1345 | |
---|
1346 | ftpfs.connection = easy; |
---|
1347 | pthread_mutex_init(&ftpfs.lock, NULL); |
---|
1348 | |
---|
1349 | res = fuse_main(args.argc, args.argv, cache_init(&ftpfs_oper)); |
---|
1350 | |
---|
1351 | curl_multi_remove_handle(ftpfs.multi, easy); |
---|
1352 | curl_easy_cleanup(easy); |
---|
1353 | curl_multi_cleanup(ftpfs.multi); |
---|
1354 | curl_global_cleanup(); |
---|
1355 | |
---|
1356 | return res; |
---|
1357 | } |
---|